Fix tests not stopping by forcing cleanup

Signed-off-by: Sebastian Malton <sebastian@malton.name>

src/common/app-paths/app-paths.test.ts

@@ -7,17 +7,17 @@ import getElectronAppPathInjectable from "../../main/app-paths/get-electron-app-
 import type { PathName } from "./app-path-names";
 import setElectronAppPathInjectable from "../../main/app-paths/set-electron-app-path/set-electron-app-path.injectable";
 import directoryForIntegrationTestingInjectable from "../../main/app-paths/directory-for-integration-testing/directory-for-integration-testing.injectable";
-import type { ApplicationBuilder } from "../../renderer/components/test-utils/get-application-builder";
+import type { ApplicationBuilder } from "../../features/test-utils/application-builder";
-import { getApplicationBuilder } from "../../renderer/components/test-utils/get-application-builder";
+import { setupInitializingApplicationBuilder } from "../../features/test-utils/application-builder";
 import type { DiContainer } from "@ogre-tools/injectable";
 import appPathsInjectable from "./app-paths.injectable";
 
 describe("app-paths", () => {
   let builder: ApplicationBuilder;
 
-  beforeEach(() => {
+  setupInitializingApplicationBuilder(b => builder = b);
-    builder = getApplicationBuilder();
 
+  beforeEach(() => {
     const defaultAppPathsStub: AppPaths = {
       currentApp: "/some-current-app",
       appData: "/some-app-data",
@@ -56,10 +56,6 @@ describe("app-paths", () => {
     });
   });
 
-  afterEach(() => {
-    builder.quit();
-  });
-
   describe("normally", () => {
     let windowDi: DiContainer;
     let mainDi: DiContainer;

src/common/utils/channel/channel.test.ts

@@ -6,8 +6,8 @@ import type { DiContainer } from "@ogre-tools/injectable";
 import { getInjectable } from "@ogre-tools/injectable";
 import type { SendMessageToChannel } from "./message-to-channel-injection-token";
 import { sendMessageToChannelInjectionToken } from "./message-to-channel-injection-token";
-import type { ApplicationBuilder } from "../../../renderer/components/test-utils/get-application-builder";
+import type { ApplicationBuilder } from "../../../features/test-utils/application-builder";
-import { getApplicationBuilder } from "../../../renderer/components/test-utils/get-application-builder";
+import { setupInitializingApplicationBuilder } from "../../../features/test-utils/application-builder";
 import type { LensWindow } from "../../../main/start-main-application/lens-window/application-window/create-lens-window.injectable";
 import type { MessageChannel } from "./message-channel-listener-injection-token";
 import { messageChannelListenerInjectionToken } from "./message-channel-listener-injection-token";
@@ -25,15 +25,16 @@ type TestMessageChannel = MessageChannel<string>;
 type TestRequestChannel = RequestChannel<string, string>;
 
 describe("channel", () => {
+  let builder: ApplicationBuilder;
+
+  setupInitializingApplicationBuilder(b => builder = b);
+
   describe("messaging from main to renderer, given listener for channel in a window and application has started", () => {
     let messageListenerInWindowMock: jest.Mock;
     let mainDi: DiContainer;
     let messageToChannel: SendMessageToChannel;
-    let builder: ApplicationBuilder;
 
     beforeEach(async () => {
-      builder = getApplicationBuilder();
-
       messageListenerInWindowMock = jest.fn();
 
       const testChannelListenerInTestWindowInjectable = getInjectable({
@@ -60,10 +61,6 @@ describe("channel", () => {
       messageToChannel = mainDi.inject(sendMessageToChannelInjectionToken);
     });
 
-    afterEach(() => {
-      builder.quit();
-    });
-
     describe("given window is started", () => {
       let someWindowFake: LensWindow;
 
@@ -107,10 +104,8 @@ describe("channel", () => {
   describe("messaging from renderer to main, given listener for channel in a main and application has started", () => {
     let messageListenerInMainMock: jest.Mock;
     let messageToChannel: SendMessageToChannel;
-    let builder: ApplicationBuilder;
 
     beforeEach(async () => {
-      builder = getApplicationBuilder();
       messageListenerInMainMock = jest.fn();
 
       const testChannelListenerInMainInjectable = getInjectable({
@@ -137,10 +132,6 @@ describe("channel", () => {
       messageToChannel = windowDi.inject(sendMessageToChannelInjectionToken);
     });
 
-    afterEach(() => {
-      builder.quit();
-    });
-
     it("when sending message, triggers listener in main", () => {
       messageToChannel(testMessageChannel, "some-message");
 
@@ -151,10 +142,8 @@ describe("channel", () => {
   describe("requesting from main in renderer, given listener for channel in a main and application has started", () => {
     let requestListenerInMainMock: AsyncFnMock<RequestChannelHandler<TestRequestChannel>>;
     let requestFromChannel: RequestFromChannel;
-    let builder: ApplicationBuilder;
 
     beforeEach(async () => {
-      builder = getApplicationBuilder();
       requestListenerInMainMock = asyncFn();
 
       const testChannelListenerInMainInjectable = getRequestChannelListenerInjectable({
@@ -175,10 +164,6 @@ describe("channel", () => {
       requestFromChannel = windowDi.inject(requestFromChannelInjectable);
     });
 
-    afterEach(() => {
-      builder.quit();
-    });
-
     describe("when requesting from channel", () => {
       let actualPromise: Promise<string>;
 
@@ -207,11 +192,7 @@ describe("channel", () => {
   });
 
   describe("when registering multiple handlers for the same channel", () => {
-    let builder: ApplicationBuilder;
-
     beforeEach(() => {
-      builder = getApplicationBuilder();
-
       const testChannelListenerInMainInjectable = getRequestChannelListenerInjectable({
         channel: testRequestChannel,
         handler: () => () => "some-value",
@@ -231,10 +212,6 @@ describe("channel", () => {
       });
     });
 
-    afterEach(() => {
-      builder.quit();
-    });
-
     it("throws on startup", async () => {
       await expect(builder.render()).rejects.toThrow('Tried to register a multiple channel handlers for "some-request-channel-id", only one handler is supported for a request channel.');
     });

src/common/utils/sync-box/sync-box.test.ts

@@ -5,8 +5,8 @@
 import type { DiContainer } from "@ogre-tools/injectable";
 import { getInjectable } from "@ogre-tools/injectable";
 import { observe, runInAction } from "mobx";
-import type { ApplicationBuilder } from "../../../renderer/components/test-utils/get-application-builder";
+import type { ApplicationBuilder } from "../../../features/test-utils/application-builder";
-import { getApplicationBuilder } from "../../../renderer/components/test-utils/get-application-builder";
+import { setupInitializingApplicationBuilder } from "../../../features/test-utils/application-builder";
 import createSyncBoxInjectable from "./create-sync-box.injectable";
 import type { SyncBox } from "./sync-box-injection-token";
 import { syncBoxInjectionToken } from "./sync-box-injection-token";
@@ -14,9 +14,9 @@ import { syncBoxInjectionToken } from "./sync-box-injection-token";
 describe("sync-box", () => {
   let builder: ApplicationBuilder;
 
-  beforeEach(() => {
+  setupInitializingApplicationBuilder(b => builder = b);
-    builder = getApplicationBuilder();
 
+  beforeEach(() => {
     builder.beforeApplicationStart(mainDi => {
       runInAction(() => {
         mainDi.register(someInjectable);
@@ -30,10 +30,6 @@ describe("sync-box", () => {
     });
   });
 
-  afterEach(() => {
-    builder.quit();
-  });
-
   describe("given application is started, when value is set in main", () => {
     let valueInMain: string;
     let syncBoxInMain: SyncBox<string>;

src/features/add-cluster/navigation-using-application-menu.test.tsx

@@ -4,23 +4,19 @@
  */
 
 import type { RenderResult } from "@testing-library/react";
-import type { ApplicationBuilder } from "../../renderer/components/test-utils/get-application-builder";
+import type { ApplicationBuilder } from "../test-utils/application-builder";
-import { getApplicationBuilder } from "../../renderer/components/test-utils/get-application-builder";
+import { setupInitializingApplicationBuilder } from "../test-utils/application-builder";
 
 describe("add-cluster - navigation using application menu", () => {
   let builder: ApplicationBuilder;
   let rendered: RenderResult;
 
+  setupInitializingApplicationBuilder(b => builder = b);
+
   beforeEach(async () => {
-    builder = getApplicationBuilder();
-
     rendered = await builder.render();
   });
 
-  afterEach(() => {
-    builder.quit();
-  });
-
   it("renders", () => {
     expect(rendered.container).toMatchSnapshot();
   });

src/features/application-menu/application-menu-in-legacy-extension-api.test.ts

@@ -5,8 +5,8 @@
 import { getInjectable } from "@ogre-tools/injectable";
 import { noop } from "lodash/fp";
 import { runInAction } from "mobx";
-import type { ApplicationBuilder } from "../../renderer/components/test-utils/get-application-builder";
+import type { ApplicationBuilder } from "../test-utils/application-builder";
-import { getApplicationBuilder } from "../../renderer/components/test-utils/get-application-builder";
+import { setupInitializingApplicationBuilder } from "../test-utils/application-builder";
 import type { FakeExtensionOptions } from "../../renderer/components/test-utils/get-extension-fake";
 import applicationMenuItemInjectionToken from "./main/menu-items/application-menu-item-injection-token";
 import logErrorInjectable from "../../common/log-error.injectable";
@@ -15,9 +15,9 @@ describe("application-menu-in-legacy-extension-api", () => {
   let builder: ApplicationBuilder;
   let logErrorMock: jest.Mock;
 
-  beforeEach(async () => {
+  setupInitializingApplicationBuilder(b => builder = b);
-    builder = getApplicationBuilder();
 
+  beforeEach(async () => {
     builder.beforeApplicationStart(
       (mainDi) => {
         runInAction(() => {

src/features/application-menu/application-menu.test.ts

@@ -2,8 +2,8 @@
  * Copyright (c) OpenLens Authors. All rights reserved.
  * Licensed under MIT License. See LICENSE in root directory for more information.
  */
-import type { ApplicationBuilder } from "../../renderer/components/test-utils/get-application-builder";
+import type { ApplicationBuilder } from "../test-utils/application-builder";
-import { getApplicationBuilder } from "../../renderer/components/test-utils/get-application-builder";
+import { setupInitializingApplicationBuilder } from "../test-utils/application-builder";
 import populateApplicationMenuInjectable from "./main/populate-application-menu.injectable";
 import { advanceFakeTime, testUsingFakeTime } from "../../common/test-utils/use-fake-time";
 import { getCompositePaths } from "../../common/utils/composite/get-composite-paths/get-composite-paths";
@@ -13,13 +13,13 @@ describe.each(allPlatforms)("application-menu, given platform is '%s'", (platfor
   let builder: ApplicationBuilder;
   let populateApplicationMenuMock: jest.Mock;
 
+  setupInitializingApplicationBuilder(b => builder = b);
+
   beforeEach(async () => {
     testUsingFakeTime();
 
     populateApplicationMenuMock = jest.fn();
 
-    builder = getApplicationBuilder();
-
     builder.beforeApplicationStart((mainDi) => {
       mainDi.override(platformInjectable, () => platform);
 

src/features/application-menu/handling-of-orphan-application-menu-items.test.ts

@@ -2,8 +2,8 @@
  * Copyright (c) OpenLens Authors. All rights reserved.
  * Licensed under MIT License. See LICENSE in root directory for more information.
  */
-import type { ApplicationBuilder } from "../../renderer/components/test-utils/get-application-builder";
+import type { ApplicationBuilder } from "../test-utils/application-builder";
-import { getApplicationBuilder } from "../../renderer/components/test-utils/get-application-builder";
+import { setupInitializingApplicationBuilder } from "../test-utils/application-builder";
 import populateApplicationMenuInjectable from "./main/populate-application-menu.injectable";
 import { advanceFakeTime, testUsingFakeTime } from "../../common/test-utils/use-fake-time";
 import { getCompositePaths } from "../../common/utils/composite/get-composite-paths/get-composite-paths";
@@ -17,14 +17,14 @@ describe("handling-of-orphan-application-menu-items, given orphan menu item", ()
   let populateApplicationMenuMock: jest.Mock;
   let logErrorMock: jest.Mock;
 
+  setupInitializingApplicationBuilder(b => builder = b);
+
   beforeEach(async () => {
     testUsingFakeTime();
 
     populateApplicationMenuMock = jest.fn();
     logErrorMock = jest.fn();
 
-    builder = getApplicationBuilder();
-
     builder.beforeApplicationStart((mainDi) => {
       const someOrphanMenuItemInjectable = getInjectable({
         id: "some-orphan-menu-item",

src/features/application-update/analytics-for-installing-update.test.ts

@@ -2,8 +2,8 @@
  * Copyright (c) OpenLens Authors. All rights reserved.
  * Licensed under MIT License. See LICENSE in root directory for more information.
  */
-import type { ApplicationBuilder } from "../../renderer/components/test-utils/get-application-builder";
+import type { ApplicationBuilder } from "../test-utils/application-builder";
-import { getApplicationBuilder } from "../../renderer/components/test-utils/get-application-builder";
+import { setupInitializingApplicationBuilder } from "../test-utils/application-builder";
 import electronUpdaterIsActiveInjectable from "../../main/electron-app/features/electron-updater-is-active.injectable";
 import publishIsConfiguredInjectable from "./main/updating-is-enabled/publish-is-configured/publish-is-configured.injectable";
 import type { AsyncFnMock } from "@async-fn/jest";
@@ -28,11 +28,11 @@ describe("analytics for installing update", () => {
   let analyticsListenerMock: jest.Mock;
   let mainDi: DiContainer;
 
+  setupInitializingApplicationBuilder(b => builder = b);
+
   beforeEach(async () => {
     testUsingFakeTime("2015-10-21T07:28:00Z");
 
-    builder = getApplicationBuilder();
-
     analyticsListenerMock = jest.fn();
 
     builder.beforeApplicationStart(mainDi => {
@@ -62,10 +62,6 @@ describe("analytics for installing update", () => {
     mainDi = builder.mainDi;
   });
 
-  afterEach(() => {
-    builder.quit();
-  });
-
   describe("given application is started and checking updates periodically", () => {
     beforeEach(async () => {
       mainDi.unoverride(periodicalCheckForUpdatesInjectable);

src/features/application-update/child-features/application-update-using-top-bar/installing-update-using-topbar-button.test.tsx

@@ -12,8 +12,8 @@ import type { DownloadPlatformUpdate } from "../../main/download-update/download
 import downloadPlatformUpdateInjectable from "../../main/download-update/download-platform-update/download-platform-update.injectable";
 import publishIsConfiguredInjectable from "../../main/updating-is-enabled/publish-is-configured/publish-is-configured.injectable";
 import electronUpdaterIsActiveInjectable from "../../../../main/electron-app/features/electron-updater-is-active.injectable";
-import type { ApplicationBuilder } from "../../../../renderer/components/test-utils/get-application-builder";
+import type { ApplicationBuilder } from "../../../test-utils/application-builder";
-import { getApplicationBuilder } from "../../../../renderer/components/test-utils/get-application-builder";
+import { setupInitializingApplicationBuilder } from "../../../test-utils/application-builder";
 import processCheckingForUpdatesInjectable from "../../main/process-checking-for-updates.injectable";
 import quitAndInstallUpdateInjectable from "../../main/quit-and-install-update.injectable";
 import { advanceFakeTime, testUsingFakeTime } from "../../../../common/test-utils/use-fake-time";
@@ -28,11 +28,11 @@ describe("encourage user to update when sufficient time passed since update was
   let downloadPlatformUpdateMock: AsyncFnMock<DownloadPlatformUpdate>;
   let quitAndInstallUpdateMock: jest.MockedFunction<() => void>;
 
+  setupInitializingApplicationBuilder(b => builder = b);
+
   beforeEach(() => {
     testUsingFakeTime("2015-10-21T07:28:00Z");
 
-    builder = getApplicationBuilder();
-
     builder.beforeApplicationStart((mainDi) => {
       checkForPlatformUpdatesMock = asyncFn();
       downloadPlatformUpdateMock = asyncFn();
@@ -55,10 +55,6 @@ describe("encourage user to update when sufficient time passed since update was
     });
   });
 
-  afterEach(() => {
-    builder.quit();
-  });
-
   describe("when started", () => {
     let rendered: RenderResult;
 

src/features/application-update/child-features/application-update-using-tray/installing-update-using-tray.test.ts

@@ -2,8 +2,8 @@
  * Copyright (c) OpenLens Authors. All rights reserved.
  * Licensed under MIT License. See LICENSE in root directory for more information.
  */
-import type { ApplicationBuilder } from "../../../../renderer/components/test-utils/get-application-builder";
+import type { ApplicationBuilder } from "../../../test-utils/application-builder";
-import { getApplicationBuilder } from "../../../../renderer/components/test-utils/get-application-builder";
+import { setupInitializingApplicationBuilder } from "../../../test-utils/application-builder";
 import type { RenderResult } from "@testing-library/react";
 import electronUpdaterIsActiveInjectable from "../../../../main/electron-app/features/electron-updater-is-active.injectable";
 import publishIsConfiguredInjectable from "../../main/updating-is-enabled/publish-is-configured/publish-is-configured.injectable";
@@ -21,9 +21,9 @@ describe("installing update using tray", () => {
   let checkForPlatformUpdatesMock: AsyncFnMock<CheckForPlatformUpdates>;
   let downloadPlatformUpdateMock: AsyncFnMock<DownloadPlatformUpdate>;
 
-  beforeEach(() => {
+  setupInitializingApplicationBuilder(b => builder = b);
-    builder = getApplicationBuilder();
 
+  beforeEach(() => {
     builder.beforeApplicationStart((mainDi) => {
       checkForPlatformUpdatesMock = asyncFn();
       downloadPlatformUpdateMock = asyncFn();
@@ -43,10 +43,6 @@ describe("installing update using tray", () => {
     });
   });
 
-  afterEach(() => {
-    builder.quit();
-  });
-
   describe("when started", () => {
     let rendered: RenderResult;
 

src/features/application-update/child-features/force-user-to-update-when-too-long-time-since-update-was-downloaded/force-user-to-update-when-too-long-time-since-update-was-downloaded.test.ts

@@ -2,8 +2,8 @@
  * Copyright (c) OpenLens Authors. All rights reserved.
  * Licensed under MIT License. See LICENSE in root directory for more information.
  */
-import type { ApplicationBuilder } from "../../../../renderer/components/test-utils/get-application-builder";
+import type { ApplicationBuilder } from "../../../test-utils/application-builder";
-import { getApplicationBuilder } from "../../../../renderer/components/test-utils/get-application-builder";
+import { setupInitializingApplicationBuilder } from "../../../test-utils/application-builder";
 import type { CheckForPlatformUpdates } from "../../main/check-for-updates/check-for-platform-updates/check-for-platform-updates.injectable";
 import checkForPlatformUpdatesInjectable from "../../main/check-for-updates/check-for-platform-updates/check-for-platform-updates.injectable";
 import type { DownloadPlatformUpdate } from "../../main/download-update/download-platform-update/download-platform-update.injectable";
@@ -30,11 +30,11 @@ describe("force user to update when too long since update was downloaded", () =>
   let mainDi: DiContainer;
   let quitAndInstallUpdateMock: jest.Mock;
 
+  setupInitializingApplicationBuilder(b => builder = b);
+
   beforeEach(() => {
     testUsingFakeTime("2015-10-21T07:28:00Z");
 
-    builder = getApplicationBuilder();
-
     builder.beforeApplicationStart(mainDi => {
       checkForPlatformUpdatesMock = asyncFn();
 
@@ -60,10 +60,6 @@ describe("force user to update when too long since update was downloaded", () =>
     mainDi = builder.mainDi;
   });
 
-  afterEach(() => {
-    builder.quit();
-  });
-
   describe("when application is started", () => {
     let rendered: RenderResult;
 

src/features/application-update/child-features/periodical-checking-of-updates/periodical-checking-of-updates.test.ts

@@ -2,8 +2,8 @@
  * Copyright (c) OpenLens Authors. All rights reserved.
  * Licensed under MIT License. See LICENSE in root directory for more information.
  */
-import type { ApplicationBuilder } from "../../../../renderer/components/test-utils/get-application-builder";
+import type { ApplicationBuilder } from "../../../test-utils/application-builder";
-import { getApplicationBuilder } from "../../../../renderer/components/test-utils/get-application-builder";
+import { setupInitializingApplicationBuilder } from "../../../test-utils/application-builder";
 import type { RenderResult } from "@testing-library/react";
 import electronUpdaterIsActiveInjectable from "../../../../main/electron-app/features/electron-updater-is-active.injectable";
 import publishIsConfiguredInjectable from "../../main/updating-is-enabled/publish-is-configured/publish-is-configured.injectable";
@@ -17,11 +17,11 @@ describe("periodical checking of updates", () => {
   let builder: ApplicationBuilder;
   let processCheckingForUpdatesMock: jest.Mock;
 
+  setupInitializingApplicationBuilder(b => builder = b);
+
   beforeEach(() => {
     testUsingFakeTime("2015-10-21T07:28:00Z");
 
-    builder = getApplicationBuilder();
-
     builder.beforeApplicationStart((mainDi) => {
       mainDi.unoverride(periodicalCheckForUpdatesInjectable);
       mainDi.permitSideEffects(periodicalCheckForUpdatesInjectable);
@@ -35,10 +35,6 @@ describe("periodical checking of updates", () => {
     });
   });
 
-  afterEach(() => {
-    builder.quit();
-  });
-
   describe("given updater is enabled and configuration exists, when started", () => {
     let rendered: RenderResult;
 

src/features/application-update/child-features/selection-of-update-stability/selection-of-update-stability.test.ts

@@ -2,8 +2,8 @@
  * Copyright (c) OpenLens Authors. All rights reserved.
  * Licensed under MIT License. See LICENSE in root directory for more information.
  */
-import type { ApplicationBuilder } from "../../../../renderer/components/test-utils/get-application-builder";
+import type { ApplicationBuilder } from "../../../test-utils/application-builder";
-import { getApplicationBuilder } from "../../../../renderer/components/test-utils/get-application-builder";
+import { setupInitializingApplicationBuilder } from "../../../test-utils/application-builder";
 import quitAndInstallUpdateInjectable from "../../main/quit-and-install-update.injectable";
 import type { RenderResult } from "@testing-library/react";
 import electronUpdaterIsActiveInjectable from "../../../../main/electron-app/features/electron-updater-is-active.injectable";
@@ -22,8 +22,7 @@ import setUpdateOnQuitInjectable from "../../../../main/electron-app/features/se
 import showInfoNotificationInjectable from "../../../../renderer/components/notifications/show-info-notification.injectable";
 import processCheckingForUpdatesInjectable from "../../main/process-checking-for-updates.injectable";
 import type { DiContainer } from "@ogre-tools/injectable";
-import getBuildVersionInjectable
+import getBuildVersionInjectable from "../../../../main/vars/build-version/get-build-version.injectable";
-  from "../../../../main/vars/build-version/get-build-version.injectable";
 
 describe("selection of update stability", () => {
   let builder: ApplicationBuilder;
@@ -34,9 +33,9 @@ describe("selection of update stability", () => {
   let showInfoNotificationMock: jest.Mock;
   let mainDi: DiContainer;
 
-  beforeEach(() => {
+  setupInitializingApplicationBuilder(b => builder = b);
-    builder = getApplicationBuilder();
 
+  beforeEach(() => {
     builder.beforeApplicationStart((mainDi) => {
       quitAndInstallUpdateMock = jest.fn();
       checkForPlatformUpdatesMock = asyncFn();
@@ -73,10 +72,6 @@ describe("selection of update stability", () => {
     mainDi = builder.mainDi;
   });
 
-  afterEach(() => {
-    builder.quit();
-  });
-
   describe("when started", () => {
     let rendered: RenderResult;
     let processCheckingForUpdates: (source: string) => Promise<{ updateIsReadyToBeInstalled: boolean }>;

src/features/application-update/downgrading-version-update.test.ts

@@ -2,8 +2,8 @@
  * Copyright (c) OpenLens Authors. All rights reserved.
  * Licensed under MIT License. See LICENSE in root directory for more information.
  */
-import type { ApplicationBuilder } from "../../renderer/components/test-utils/get-application-builder";
+import type { ApplicationBuilder } from "../test-utils/application-builder";
-import { getApplicationBuilder } from "../../renderer/components/test-utils/get-application-builder";
+import { setupInitializingApplicationBuilder } from "../test-utils/application-builder";
 import electronUpdaterIsActiveInjectable from "../../main/electron-app/features/electron-updater-is-active.injectable";
 import publishIsConfiguredInjectable from "./main/updating-is-enabled/publish-is-configured/publish-is-configured.injectable";
 import type { AsyncFnMock } from "@async-fn/jest";
@@ -21,9 +21,9 @@ describe("downgrading version update", () => {
   let checkForPlatformUpdatesMock: AsyncFnMock<CheckForPlatformUpdates>;
   let mainDi: DiContainer;
 
-  beforeEach(() => {
+  setupInitializingApplicationBuilder(b => builder = b);
-    builder = getApplicationBuilder();
 
+  beforeEach(() => {
     builder.beforeApplicationStart(mainDi => {
       checkForPlatformUpdatesMock = asyncFn();
 
@@ -39,10 +39,6 @@ describe("downgrading version update", () => {
     mainDi = builder.mainDi;
   });
 
-  afterEach(() => {
-    builder.quit();
-  });
-
   [
     {
       updateChannel: updateChannels.latest,

src/features/application-update/installing-update.test.ts

@@ -2,8 +2,8 @@
  * Copyright (c) OpenLens Authors. All rights reserved.
  * Licensed under MIT License. See LICENSE in root directory for more information.
  */
-import type { ApplicationBuilder } from "../../renderer/components/test-utils/get-application-builder";
+import type { ApplicationBuilder } from "../test-utils/application-builder";
-import { getApplicationBuilder } from "../../renderer/components/test-utils/get-application-builder";
+import { setupInitializingApplicationBuilder } from "../test-utils/application-builder";
 import quitAndInstallUpdateInjectable from "./main/quit-and-install-update.injectable";
 import type { RenderResult } from "@testing-library/react";
 import electronUpdaterIsActiveInjectable from "../../main/electron-app/features/electron-updater-is-active.injectable";
@@ -26,11 +26,11 @@ describe("installing update", () => {
   let downloadPlatformUpdateMock: AsyncFnMock<DownloadPlatformUpdate>;
   let setUpdateOnQuitMock: jest.Mock;
 
+  setupInitializingApplicationBuilder(b => builder = b);
+
   beforeEach(() => {
     testUsingFakeTime("2015-10-21T07:28:00Z");
 
-    builder = getApplicationBuilder();
-
     builder.beforeApplicationStart((mainDi) => {
       quitAndInstallUpdateMock = jest.fn();
       checkForPlatformUpdatesMock = asyncFn();
@@ -61,10 +61,6 @@ describe("installing update", () => {
     });
   });
 
-  afterEach(() => {
-    builder.quit();
-  });
-
   describe("when started", () => {
     let rendered: RenderResult;
     let processCheckingForUpdates: (source: string) => Promise<{ updateIsReadyToBeInstalled: boolean }>;

src/features/cluster/delete-dialog/delete-cluster-dialog.test.tsx

@@ -13,7 +13,7 @@ import normalizedPlatformInjectable from "../../../common/vars/normalized-platfo
 import kubectlBinaryNameInjectable from "../../../main/kubectl/binary-name.injectable";
 import kubectlDownloadingNormalizedArchInjectable from "../../../main/kubectl/normalized-arch.injectable";
 import openDeleteClusterDialogInjectable, { type OpenDeleteClusterDialog } from "../../../renderer/components/delete-cluster-dialog/open.injectable";
-import { type ApplicationBuilder, getApplicationBuilder } from "../../../renderer/components/test-utils/get-application-builder";
+import { type ApplicationBuilder, setupInitializingApplicationBuilder } from "../../test-utils/application-builder";
 import type { Cluster } from "../../../common/cluster/cluster";
 import navigateToCatalogInjectable from "../../../common/front-end-routing/routes/catalog/navigate-to-catalog.injectable";
 import directoryForKubeConfigsInjectable from "../../../common/app-paths/directory-for-kube-configs/directory-for-kube-configs.injectable";
@@ -77,10 +77,10 @@ describe("Deleting a cluster", () => {
   let rendered: RenderResult;
   let config: KubeConfig;
 
+  setupInitializingApplicationBuilder(b => builder = b);
+
   beforeEach(async () => {
     config = new KubeConfig();
-    builder = getApplicationBuilder();
-
     builder.beforeApplicationStart((mainDi) => {
       mainDi.override(createContextHandlerInjectable, () => () => undefined as never);
       mainDi.override(createKubeconfigManagerInjectable, () => () => undefined as never);
@@ -104,10 +104,6 @@ describe("Deleting a cluster", () => {
     rendered = await builder.render();
   });
 
-  afterEach(() => {
-    builder.quit();
-  });
-
   describe("when the kubeconfig has multiple clusters", () => {
     let currentCluster: Cluster;
     let nonCurrentCluster: Cluster;

src/features/cluster/extension-api/disable-cluster-pages-when-cluster-is-not-relevant.test.tsx

@@ -5,8 +5,8 @@
 import type { AsyncFnMock } from "@async-fn/jest";
 import asyncFn from "@async-fn/jest";
 import type { RenderResult } from "@testing-library/react";
-import type { ApplicationBuilder } from "../../../renderer/components/test-utils/get-application-builder";
+import type { ApplicationBuilder } from "../../test-utils/application-builder";
-import { getApplicationBuilder } from "../../../renderer/components/test-utils/get-application-builder";
+import { setupInitializingApplicationBuilder } from "../../test-utils/application-builder";
 import type { TestExtensionRenderer } from "../../../renderer/components/test-utils/get-extension-fake";
 import type { KubernetesCluster } from "../../../common/catalog-entities";
 import React from "react";
@@ -17,9 +17,9 @@ describe("disable-cluster-pages-when-cluster-is-not-relevant", () => {
   let rendererTestExtension: TestExtensionRenderer;
   let isEnabledForClusterMock: AsyncFnMock<(cluster: KubernetesCluster) => Promise<boolean>>;
 
-  beforeEach(async () => {
+  setupInitializingApplicationBuilder(b => builder = b);
-    builder = getApplicationBuilder();
 
+  beforeEach(async () => {
     builder.setEnvironmentToClusterFrame();
 
     isEnabledForClusterMock = asyncFn();
@@ -47,10 +47,6 @@ describe("disable-cluster-pages-when-cluster-is-not-relevant", () => {
       builder.extensions.get("test-extension-id").applicationWindows.only;
   });
 
-  afterEach(() => {
-    builder.quit();
-  });
-
   describe("given not yet known if extension should be enabled for the cluster, when navigating", () => {
     beforeEach(() => {
       rendererTestExtension.navigate();

src/features/cluster/extension-api/disable-sidebar-items-when-cluster-is-not-relevant.test.tsx

@@ -5,8 +5,8 @@
 import type { AsyncFnMock } from "@async-fn/jest";
 import asyncFn from "@async-fn/jest";
 import type { RenderResult } from "@testing-library/react";
-import type { ApplicationBuilder } from "../../../renderer/components/test-utils/get-application-builder";
+import type { ApplicationBuilder } from "../../test-utils/application-builder";
-import { getApplicationBuilder } from "../../../renderer/components/test-utils/get-application-builder";
+import { setupInitializingApplicationBuilder } from "../../test-utils/application-builder";
 import type { KubernetesCluster } from "../../../common/catalog-entities";
 import React from "react";
 
@@ -15,9 +15,9 @@ describe("disable sidebar items when cluster is not relevant", () => {
   let rendered: RenderResult;
   let isEnabledForClusterMock: AsyncFnMock<(cluster: KubernetesCluster) => Promise<boolean>>;
 
-  beforeEach(async () => {
+  setupInitializingApplicationBuilder(b => builder = b);
-    builder = getApplicationBuilder();
 
+  beforeEach(async () => {
     builder.setEnvironmentToClusterFrame();
 
     isEnabledForClusterMock = asyncFn();
@@ -53,10 +53,6 @@ describe("disable sidebar items when cluster is not relevant", () => {
     builder.extensions.enable(testExtension);
   });
 
-  afterEach(() => {
-    builder.quit();
-  });
-
   describe("given not yet known if extension should be enabled for the cluster", () => {
     it("renders", () => {
       expect(rendered.baseElement).toMatchSnapshot();

src/features/cluster/extension-api/reactively-disable-cluster-pages.test.tsx

@@ -7,8 +7,8 @@ import type { IObservableValue } from "mobx";
 import { observable, runInAction, computed } from "mobx";
 import React from "react";
 import type { TestExtensionRenderer } from "../../../renderer/components/test-utils/get-extension-fake";
-import type { ApplicationBuilder } from "../../../renderer/components/test-utils/get-application-builder";
+import type { ApplicationBuilder } from "../../test-utils/application-builder";
-import { getApplicationBuilder } from "../../../renderer/components/test-utils/get-application-builder";
+import { setupInitializingApplicationBuilder } from "../../test-utils/application-builder";
 
 describe("reactively disable cluster pages", () => {
   let builder: ApplicationBuilder;
@@ -16,9 +16,9 @@ describe("reactively disable cluster pages", () => {
   let someObservable: IObservableValue<boolean>;
   let testExtensionInstance: TestExtensionRenderer;
 
-  beforeEach(async () => {
+  setupInitializingApplicationBuilder(b => builder = b);
-    builder = getApplicationBuilder();
 
+  beforeEach(async () => {
     builder.setEnvironmentToClusterFrame();
 
     someObservable = observable.box(false);
@@ -46,10 +46,6 @@ describe("reactively disable cluster pages", () => {
       builder.extensions.get("test-extension-id").applicationWindows.only;
   });
 
-  afterEach(() => {
-    builder.quit();
-  });
-
   it("when navigating to the page, does not show the page", () => {
     testExtensionInstance.navigate();
 

src/features/cluster/kube-object-details/extension-api/disable-kube-object-detail-items-when-cluster-is-not-relevant.test.tsx

@@ -5,9 +5,9 @@
 import type { AsyncFnMock } from "@async-fn/jest";
 import asyncFn from "@async-fn/jest";
 import type { RenderResult } from "@testing-library/react";
-import type { ApplicationBuilder } from "../../../../renderer/components/test-utils/get-application-builder";
+import type { ApplicationBuilder } from "../../../test-utils/application-builder";
 import type { KubernetesCluster } from "../../../../common/catalog-entities";
-import { getApplicationBuilder } from "../../../../renderer/components/test-utils/get-application-builder";
+import { setupInitializingApplicationBuilder } from "../../../test-utils/application-builder";
 import React from "react";
 import { KubeObject } from "../../../../common/k8s-api/kube-object";
 import apiManagerInjectable from "../../../../common/k8s-api/api-manager/manager.injectable";
@@ -22,8 +22,9 @@ describe("disable kube object detail items when cluster is not relevant", () =>
     (cluster: KubernetesCluster) => Promise<boolean>
   >;
 
+  setupInitializingApplicationBuilder(b => builder = b);
+
   beforeEach(async () => {
-    builder = getApplicationBuilder();
     builder.setEnvironmentToClusterFrame();
 
     builder.afterWindowStart((windowDi) => {
@@ -75,10 +76,6 @@ describe("disable kube object detail items when cluster is not relevant", () =>
     builder.extensions.enable(testExtension);
   });
 
-  afterEach(() => {
-    builder.quit();
-  });
-
   describe("given not yet known if extension should be enabled for the cluster", () => {
     it("renders", () => {
       expect(rendered.baseElement).toMatchSnapshot();

src/features/cluster/kube-object-details/extension-api/reactively-hide-kube-object-detail-item.test.tsx

@@ -3,8 +3,8 @@
  * Licensed under MIT License. See LICENSE in root directory for more information.
  */
 import type { RenderResult } from "@testing-library/react";
-import type { ApplicationBuilder } from "../../../../renderer/components/test-utils/get-application-builder";
+import type { ApplicationBuilder } from "../../../test-utils/application-builder";
-import { getApplicationBuilder } from "../../../../renderer/components/test-utils/get-application-builder";
+import { setupInitializingApplicationBuilder } from "../../../test-utils/application-builder";
 import type { IObservableValue } from "mobx";
 import { runInAction, computed, observable } from "mobx";
 import React from "react";
@@ -19,9 +19,9 @@ describe("reactively hide kube object detail item", () => {
   let rendered: RenderResult;
   let someObservable: IObservableValue<boolean>;
 
-  beforeEach(async () => {
+  setupInitializingApplicationBuilder(b => builder = b);
-    builder = getApplicationBuilder();
 
+  beforeEach(async () => {
     builder.setEnvironmentToClusterFrame();
 
     builder.afterWindowStart((windowDi) => {
@@ -74,11 +74,6 @@ describe("reactively hide kube object detail item", () => {
     builder.extensions.enable(testExtension);
   });
 
-
-  afterEach(() => {
-    builder.quit();
-  });
-
   it("renders", () => {
     expect(rendered.baseElement).toMatchSnapshot();
   });

src/features/cluster/kube-object-menu/extension-api/disable-kube-object-menu-items-when-cluster-is-not-relevant.test.tsx

@@ -5,9 +5,9 @@
 import type { AsyncFnMock } from "@async-fn/jest";
 import asyncFn from "@async-fn/jest";
 import type { RenderResult } from "@testing-library/react";
-import type { ApplicationBuilder } from "../../../../renderer/components/test-utils/get-application-builder";
+import type { ApplicationBuilder } from "../../../test-utils/application-builder";
 import type { KubernetesCluster } from "../../../../common/catalog-entities";
-import { getApplicationBuilder } from "../../../../renderer/components/test-utils/get-application-builder";
+import { setupInitializingApplicationBuilder } from "../../../test-utils/application-builder";
 import { getInjectable } from "@ogre-tools/injectable";
 import { frontEndRouteInjectionToken } from "../../../../common/front-end-routing/front-end-route-injection-token";
 import { computed, runInAction } from "mobx";
@@ -24,9 +24,9 @@ describe("disable kube object menu items when cluster is not relevant", () => {
     (cluster: KubernetesCluster) => Promise<boolean>
   >;
 
-  beforeEach(async () => {
+  setupInitializingApplicationBuilder(b => builder = b);
-    builder = getApplicationBuilder();
 
+  beforeEach(async () => {
     builder.setEnvironmentToClusterFrame();
 
     builder.beforeWindowStart((windowDi) => {
@@ -70,10 +70,6 @@ describe("disable kube object menu items when cluster is not relevant", () => {
     builder.extensions.enable(testExtension);
   });
 
-  afterEach(() => {
-    builder.quit();
-  });
-
   describe("given not yet known if extension should be enabled for the cluster", () => {
     it("renders", () => {
       expect(rendered.baseElement).toMatchSnapshot();

src/features/cluster/kube-object-menu/extension-api/reactively-hide-kube-object-menu-item.test.tsx

@@ -3,8 +3,8 @@
  * Licensed under MIT License. See LICENSE in root directory for more information.
  */
 import type { RenderResult } from "@testing-library/react";
-import type { ApplicationBuilder } from "../../../../renderer/components/test-utils/get-application-builder";
+import type { ApplicationBuilder } from "../../../test-utils/application-builder";
-import { getApplicationBuilder } from "../../../../renderer/components/test-utils/get-application-builder";
+import { setupInitializingApplicationBuilder } from "../../../test-utils/application-builder";
 import { getInjectable } from "@ogre-tools/injectable";
 import { frontEndRouteInjectionToken } from "../../../../common/front-end-routing/front-end-route-injection-token";
 import type { IObservableValue } from "mobx";
@@ -20,9 +20,9 @@ describe("reactively hide kube object menu item", () => {
   let rendered: RenderResult;
   let someObservable: IObservableValue<boolean>;
 
-  beforeEach(async () => {
+  setupInitializingApplicationBuilder(b => builder = b);
-    builder = getApplicationBuilder();
 
+  beforeEach(async () => {
     builder.setEnvironmentToClusterFrame();
 
     builder.beforeWindowStart((windowDi) => {
@@ -66,10 +66,6 @@ describe("reactively hide kube object menu item", () => {
     builder.extensions.enable(testExtension);
   });
 
-  afterEach(() => {
-    builder.quit();
-  });
-
   it("does not show the kube object menu item", () => {
     const actual = rendered.queryByTestId("some-kube-object-menu-item");
 

src/features/cluster/kube-object-status-icon/extension-api/disable-kube-object-statuses-when-cluster-is-not-relevant.test.tsx

@@ -5,9 +5,9 @@
 import type { AsyncFnMock } from "@async-fn/jest";
 import asyncFn from "@async-fn/jest";
 import type { RenderResult } from "@testing-library/react";
-import type { ApplicationBuilder } from "../../../../renderer/components/test-utils/get-application-builder";
+import type { ApplicationBuilder } from "../../../test-utils/application-builder";
 import type { KubernetesCluster } from "../../../../common/catalog-entities";
-import { getApplicationBuilder } from "../../../../renderer/components/test-utils/get-application-builder";
+import { setupInitializingApplicationBuilder } from "../../../test-utils/application-builder";
 import { getInjectable } from "@ogre-tools/injectable";
 import { frontEndRouteInjectionToken } from "../../../../common/front-end-routing/front-end-route-injection-token";
 import { computed, runInAction } from "mobx";
@@ -25,9 +25,9 @@ describe("disable kube object statuses when cluster is not relevant", () => {
     (cluster: KubernetesCluster) => Promise<boolean>
   >;
 
-  beforeEach(async () => {
+  setupInitializingApplicationBuilder(b => builder = b);
-    builder = getApplicationBuilder();
 
+  beforeEach(async () => {
     builder.setEnvironmentToClusterFrame();
 
     builder.beforeWindowStart((windowDi) => {
@@ -71,10 +71,6 @@ describe("disable kube object statuses when cluster is not relevant", () => {
     builder.extensions.enable(testExtension);
   });
 
-  afterEach(() => {
-    builder.quit();
-  });
-
   describe("given not yet known if extension should be enabled for the cluster", () => {
     it("renders", () => {
       expect(rendered.baseElement).toMatchSnapshot();

src/features/cluster/kube-object-status-icon/extension-api/reactively-hide-kube-object-status.test.tsx

@@ -4,8 +4,8 @@
  */
 import type { RenderResult } from "@testing-library/react";
 import { waitFor } from "@testing-library/react";
-import type { ApplicationBuilder } from "../../../../renderer/components/test-utils/get-application-builder";
+import type { ApplicationBuilder } from "../../../test-utils/application-builder";
-import { getApplicationBuilder } from "../../../../renderer/components/test-utils/get-application-builder";
+import { setupInitializingApplicationBuilder } from "../../../test-utils/application-builder";
 import { getInjectable } from "@ogre-tools/injectable";
 import { frontEndRouteInjectionToken } from "../../../../common/front-end-routing/front-end-route-injection-token";
 import type { IObservableValue } from "mobx";
@@ -22,9 +22,9 @@ describe("reactively hide kube object status", () => {
   let rendered: RenderResult;
   let someObservable: IObservableValue<boolean>;
 
-  beforeEach(async () => {
+  setupInitializingApplicationBuilder(b => builder = b);
-    builder = getApplicationBuilder();
 
+  beforeEach(async () => {
     builder.setEnvironmentToClusterFrame();
 
     builder.beforeWindowStart((windowDi) => {
@@ -68,10 +68,6 @@ describe("reactively hide kube object status", () => {
     builder.extensions.enable(testExtension);
   });
 
-  afterEach(() => {
-    builder.quit();
-  });
-
   it("does not show the kube object status", async () => {
     await waitFor(() => expect(rendered.baseElement.querySelectorAll(".KubeObjectStatusIcon")).toHaveLength(0));
   });

src/features/cluster/kube-object-status-icon/show-status-for-a-kube-object.test.tsx

@@ -12,8 +12,8 @@ import type { IAtom } from "mobx";
 import { runInAction, createAtom, computed } from "mobx";
 import { frontEndRouteInjectionToken } from "../../../common/front-end-routing/front-end-route-injection-token";
 import { routeSpecificComponentInjectionToken } from "../../../renderer/routes/route-specific-component-injection-token";
-import type { ApplicationBuilder } from "../../../renderer/components/test-utils/get-application-builder";
+import type { ApplicationBuilder } from "../../test-utils/application-builder";
-import { getApplicationBuilder } from "../../../renderer/components/test-utils/get-application-builder";
+import { setupInitializingApplicationBuilder } from "../../test-utils/application-builder";
 import { navigateToRouteInjectionToken } from "../../../common/front-end-routing/navigate-to-route-injection-token";
 import type { RenderResult } from "@testing-library/react";
 import { act } from "@testing-library/react";
@@ -27,11 +27,11 @@ describe("show status for a kube object", () => {
   let warningStatusIsShown: boolean;
   let criticalStatusIsShown: boolean;
 
+  setupInitializingApplicationBuilder(b => builder = b);
+
   beforeEach(() => {
     testUsingFakeTime("2015-10-21T07:28:00Z");
 
-    builder = getApplicationBuilder();
-
     infoStatusIsShown = false;
 
     const infoStatusInjectable = getInjectable({
@@ -110,10 +110,6 @@ describe("show status for a kube object", () => {
     builder.setEnvironmentToClusterFrame();
   });
 
-  afterEach(() => {
-    builder.quit();
-  });
-
   describe("given application starts and in test page", () => {
     let windowDi: DiContainer;
     let rendered: RenderResult;

src/features/cluster/legacy-extension-adding-cluster-frame-components.test.tsx

@@ -7,15 +7,16 @@ import { act } from "@testing-library/react";
 import type { IObservableValue } from "mobx";
 import { computed, observable, runInAction } from "mobx";
 import React from "react";
-import type { ApplicationBuilder } from "../../renderer/components/test-utils/get-application-builder";
+import type { ApplicationBuilder } from "../test-utils/application-builder";
-import { getApplicationBuilder } from "../../renderer/components/test-utils/get-application-builder";
+import { setupInitializingApplicationBuilder } from "../test-utils/application-builder";
 
 describe("legacy extension adding cluster frame components", () => {
   let builder: ApplicationBuilder;
   let rendered: RenderResult;
 
+  setupInitializingApplicationBuilder(b => builder = b);
+
   beforeEach(() => {
-    builder = getApplicationBuilder();
     builder.setEnvironmentToClusterFrame();
   });
 

src/features/cluster/namespaces/edit-namespace-from-new-tab.test.tsx

@@ -5,8 +5,8 @@
 import type { DiContainer } from "@ogre-tools/injectable";
 import type { RenderResult } from "@testing-library/react";
 import { fireEvent } from "@testing-library/react";
-import type { ApplicationBuilder } from "../../../renderer/components/test-utils/get-application-builder";
+import type { ApplicationBuilder } from "../../test-utils/application-builder";
-import { getApplicationBuilder } from "../../../renderer/components/test-utils/get-application-builder";
+import { setupInitializingApplicationBuilder } from "../../test-utils/application-builder";
 import navigateToNamespacesInjectable from "../../../common/front-end-routing/routes/cluster/namespaces/navigate-to-namespaces.injectable";
 import createEditResourceTabInjectable from "../../../renderer/components/dock/edit-resource/edit-resource-tab.injectable";
 import getRandomIdForEditResourceTabInjectable from "../../../renderer/components/dock/edit-resource/get-random-id-for-edit-resource-tab.injectable";
@@ -31,9 +31,9 @@ describe("cluster/namespaces - edit namespace from new tab", () => {
   let showSuccessNotificationMock: jest.Mock;
   let showErrorNotificationMock: jest.Mock;
 
-  beforeEach(() => {
+  setupInitializingApplicationBuilder(b => builder = b);
-    builder = getApplicationBuilder();
 
+  beforeEach(() => {
     builder.setEnvironmentToClusterFrame();
 
     builder.beforeWindowStart((windowDi) => {
@@ -70,10 +70,6 @@ describe("cluster/namespaces - edit namespace from new tab", () => {
     });
   });
 
-  afterEach(() => {
-    builder.quit();
-  });
-
   describe("when navigating to namespaces", () => {
     let rendered: RenderResult;
     let windowDi: DiContainer;

src/features/cluster/namespaces/edit-namespace-from-previously-opened-tab.test.tsx

@@ -4,8 +4,8 @@
  */
 import type { RenderResult } from "@testing-library/react";
 import { act } from "@testing-library/react";
-import type { ApplicationBuilder } from "../../../renderer/components/test-utils/get-application-builder";
+import type { ApplicationBuilder } from "../../test-utils/application-builder";
-import { getApplicationBuilder } from "../../../renderer/components/test-utils/get-application-builder";
+import { setupInitializingApplicationBuilder } from "../../test-utils/application-builder";
 import type { AsyncFnMock } from "@async-fn/jest";
 import asyncFn from "@async-fn/jest";
 import type { CallForResource } from "../../../renderer/components/dock/edit-resource/edit-resource-model/call-for-resource/call-for-resource.injectable";
@@ -19,9 +19,9 @@ describe("cluster/namespaces - edit namespaces from previously opened tab", () =
   let builder: ApplicationBuilder;
   let callForNamespaceMock: AsyncFnMock<CallForResource>;
 
-  beforeEach(() => {
+  setupInitializingApplicationBuilder(b => builder = b);
-    builder = getApplicationBuilder();
 
+  beforeEach(() => {
     builder.setEnvironmentToClusterFrame();
 
     callForNamespaceMock = asyncFn();
@@ -41,10 +41,6 @@ describe("cluster/namespaces - edit namespaces from previously opened tab", () =
     });
   });
 
-  afterEach(() => {
-    builder.quit();
-  });
-
   describe("given tab was previously opened, when application is started", () => {
     let rendered: RenderResult;
 

src/features/cluster/order-of-sidebar-items.test.tsx

@@ -9,16 +9,16 @@ import type { SidebarItemRegistration } from "../../renderer/components/layout/s
 import { sidebarItemsInjectionToken } from "../../renderer/components/layout/sidebar-items.injectable";
 import { computed, runInAction } from "mobx";
 import { noop } from "lodash/fp";
-import type { ApplicationBuilder } from "../../renderer/components/test-utils/get-application-builder";
+import type { ApplicationBuilder } from "../test-utils/application-builder";
-import { getApplicationBuilder } from "../../renderer/components/test-utils/get-application-builder";
+import { setupInitializingApplicationBuilder } from "../test-utils/application-builder";
 
 describe("cluster - order of sidebar items", () => {
   let rendered: RenderResult;
   let builder: ApplicationBuilder;
 
-  beforeEach(() => {
+  setupInitializingApplicationBuilder(b => builder = b);
-    builder = getApplicationBuilder();
 
+  beforeEach(() => {
     builder.setEnvironmentToClusterFrame();
 
     builder.beforeWindowStart((windowDi) => {
@@ -28,10 +28,6 @@ describe("cluster - order of sidebar items", () => {
     });
   });
 
-  afterEach(() => {
-    builder.quit();
-  });
-
   describe("when rendered", () => {
     beforeEach(async () => {
       rendered = await builder.render();

src/features/cluster/sidebar-and-tab-navigation-for-core.test.tsx

@@ -14,8 +14,8 @@ import { computed, runInAction } from "mobx";
 import { noop } from "lodash/fp";
 import routeIsActiveInjectable from "../../renderer/routes/route-is-active.injectable";
 import { frontEndRouteInjectionToken } from "../../common/front-end-routing/front-end-route-injection-token";
-import type { ApplicationBuilder } from "../../renderer/components/test-utils/get-application-builder";
+import type { ApplicationBuilder } from "../test-utils/application-builder";
-import { getApplicationBuilder } from "../../renderer/components/test-utils/get-application-builder";
+import { setupInitializingApplicationBuilder } from "../test-utils/application-builder";
 import writeJsonFileInjectable from "../../common/fs/write-json-file.injectable";
 import pathExistsInjectable from "../../common/fs/path-exists.injectable";
 import readJsonFileInjectable from "../../common/fs/read-json-file.injectable";
@@ -28,11 +28,11 @@ describe("cluster - sidebar and tab navigation for core", () => {
   let builder: ApplicationBuilder;
   let rendered: RenderResult;
 
+  setupInitializingApplicationBuilder(b => builder = b);
+
   beforeEach(() => {
     testUsingFakeTime("2015-10-21T07:28:00Z");
 
-    builder = getApplicationBuilder();
-
     builder.setEnvironmentToClusterFrame();
 
     builder.beforeWindowStart((windowDi) => {
@@ -40,10 +40,6 @@ describe("cluster - sidebar and tab navigation for core", () => {
     });
   });
 
-  afterEach(() => {
-    builder.quit();
-  });
-
   describe("given core registrations", () => {
     beforeEach(() => {
       builder.beforeWindowStart((windowDi) => {

src/features/cluster/sidebar-and-tab-navigation-for-extensions.test.tsx

@@ -8,8 +8,8 @@ import { fireEvent } from "@testing-library/react";
 import directoryForLensLocalStorageInjectable from "../../common/directory-for-lens-local-storage/directory-for-lens-local-storage.injectable";
 import routesInjectable from "../../renderer/routes/routes.injectable";
 import { matches } from "lodash/fp";
-import type { ApplicationBuilder } from "../../renderer/components/test-utils/get-application-builder";
+import type { ApplicationBuilder } from "../test-utils/application-builder";
-import { getApplicationBuilder } from "../../renderer/components/test-utils/get-application-builder";
+import { setupInitializingApplicationBuilder } from "../test-utils/application-builder";
 import writeJsonFileInjectable from "../../common/fs/write-json-file.injectable";
 import pathExistsInjectable from "../../common/fs/path-exists.injectable";
 import readJsonFileInjectable from "../../common/fs/read-json-file.injectable";
@@ -26,11 +26,11 @@ describe("cluster - sidebar and tab navigation for extensions", () => {
   let builder: ApplicationBuilder;
   let rendered: RenderResult;
 
+  setupInitializingApplicationBuilder(b => builder = b);
+
   beforeEach(() => {
     testUsingFakeTime("2015-10-21T07:28:00Z");
 
-    builder = getApplicationBuilder();
-
     builder.setEnvironmentToClusterFrame();
 
     builder.beforeWindowStart((windowDi) => {
@@ -43,10 +43,6 @@ describe("cluster - sidebar and tab navigation for extensions", () => {
     });
   });
 
-  afterEach(() => {
-    builder.quit();
-  });
-
   describe("given extension with cluster pages and cluster page menus", () => {
     let someObservable: IObservableValue<boolean>;
 

src/features/cluster/visibility-of-sidebar-items.test.tsx

@@ -10,8 +10,8 @@ import { computed, runInAction } from "mobx";
 import { routeSpecificComponentInjectionToken } from "../../renderer/routes/route-specific-component-injection-token";
 import React from "react";
 import { frontEndRouteInjectionToken } from "../../common/front-end-routing/front-end-route-injection-token";
-import type { ApplicationBuilder } from "../../renderer/components/test-utils/get-application-builder";
+import type { ApplicationBuilder } from "../test-utils/application-builder";
-import { getApplicationBuilder } from "../../renderer/components/test-utils/get-application-builder";
+import { setupInitializingApplicationBuilder } from "../test-utils/application-builder";
 import { navigateToRouteInjectionToken } from "../../common/front-end-routing/navigate-to-route-injection-token";
 import { shouldShowResourceInjectionToken } from "../../common/cluster-store/allowed-resources-injection-token";
 
@@ -19,9 +19,9 @@ describe("cluster - visibility of sidebar items", () => {
   let builder: ApplicationBuilder;
   let rendered: RenderResult;
 
-  beforeEach(() => {
+  setupInitializingApplicationBuilder(b => builder = b);
-    builder = getApplicationBuilder();
 
+  beforeEach(() => {
     builder.setEnvironmentToClusterFrame();
 
     builder.beforeWindowStart((windowDi) => {
@@ -33,10 +33,6 @@ describe("cluster - visibility of sidebar items", () => {
     });
   });
 
-  afterEach(() => {
-    builder.quit();
-  });
-
   describe("given kube resource for route is not allowed", () => {
     beforeEach(async () => {
       rendered = await builder.render();

src/features/cluster/workload-overview.test.tsx

@@ -5,24 +5,26 @@
 
 import type { RenderResult } from "@testing-library/react";
 import navigateToWorkloadsOverviewInjectable from "../../common/front-end-routing/routes/cluster/workloads/overview/navigate-to-workloads-overview.injectable";
-import { type ApplicationBuilder, getApplicationBuilder } from "../../renderer/components/test-utils/get-application-builder";
+import { type ApplicationBuilder, setupInitializingApplicationBuilder } from "../test-utils/application-builder";
 
 describe("workload overview", () => {
   let rendered: RenderResult;
-  let applicationBuilder: ApplicationBuilder;
+  let builder: ApplicationBuilder;
+
+  setupInitializingApplicationBuilder(b => builder = b);
 
   beforeEach(async () => {
-    applicationBuilder = getApplicationBuilder().setEnvironmentToClusterFrame();
+    builder.setEnvironmentToClusterFrame();
-    applicationBuilder.allowKubeResource({
+    builder.allowKubeResource({
       apiName: "pods",
       group: "v1",
     });
-    rendered = await applicationBuilder.render();
+    rendered = await builder.render();
   });
 
   describe("when navigating to workload overview", () => {
     beforeEach(() => {
-      applicationBuilder.navigateWith(navigateToWorkloadsOverviewInjectable);
+      builder.navigateWith(navigateToWorkloadsOverviewInjectable);
     });
 
     it("renders", () => {

src/features/cluster/workloads/overview/extension-api/disable-workloads-overview-details-when-cluster-is-not-relevant.test.tsx

@@ -5,9 +5,9 @@
 import type { AsyncFnMock } from "@async-fn/jest";
 import asyncFn from "@async-fn/jest";
 import type { RenderResult } from "@testing-library/react";
-import type { ApplicationBuilder } from "../../../../../renderer/components/test-utils/get-application-builder";
+import type { ApplicationBuilder } from "../../../../test-utils/application-builder";
 import type { KubernetesCluster } from "../../../../../common/catalog-entities";
-import { getApplicationBuilder } from "../../../../../renderer/components/test-utils/get-application-builder";
+import { setupInitializingApplicationBuilder } from "../../../../test-utils/application-builder";
 import navigateToWorkloadsOverviewInjectable from "../../../../../common/front-end-routing/routes/cluster/workloads/overview/navigate-to-workloads-overview.injectable";
 import React from "react";
 
@@ -18,9 +18,9 @@ describe("disable workloads overview details when cluster is not relevant", () =
     (cluster: KubernetesCluster) => Promise<boolean>
   >;
 
-  beforeEach(async () => {
+  setupInitializingApplicationBuilder(b => builder = b);
-    builder = getApplicationBuilder();
 
+  beforeEach(async () => {
     builder.setEnvironmentToClusterFrame();
 
     isEnabledForClusterMock = asyncFn();
@@ -57,10 +57,6 @@ describe("disable workloads overview details when cluster is not relevant", () =
     builder.extensions.enable(testExtension);
   });
 
-  afterEach(() => {
-    builder.quit();
-  });
-
   describe("given not yet known if extension should be enabled for the cluster", () => {
     it("renders", () => {
       expect(rendered.baseElement).toMatchSnapshot();

src/features/cluster/workloads/overview/extension-api/order-of-workload-overview-details.test.tsx

@@ -3,8 +3,8 @@
  * Licensed under MIT License. See LICENSE in root directory for more information.
  */
 import type { RenderResult } from "@testing-library/react";
-import type { ApplicationBuilder } from "../../../../../renderer/components/test-utils/get-application-builder";
+import type { ApplicationBuilder } from "../../../../test-utils/application-builder";
-import { getApplicationBuilder } from "../../../../../renderer/components/test-utils/get-application-builder";
+import { setupInitializingApplicationBuilder } from "../../../../test-utils/application-builder";
 import React from "react";
 import getRandomIdInjectable from "../../../../../common/utils/get-random-id.injectable";
 import { workloadOverviewDetailInjectionToken } from "../../../../../renderer/components/+workloads-overview/workload-overview-details/workload-overview-detail-injection-token";
@@ -15,9 +15,9 @@ describe("order of workload overview details", () => {
   let rendered: RenderResult;
   let builder: ApplicationBuilder;
 
-  beforeEach(async () => {
+  setupInitializingApplicationBuilder(b => builder = b);
-    builder = getApplicationBuilder();
 
+  beforeEach(async () => {
     builder.beforeWindowStart((windowDi) => {
       windowDi.unoverride(getRandomIdInjectable);
       windowDi.permitSideEffects(getRandomIdInjectable);
@@ -80,10 +80,6 @@ describe("order of workload overview details", () => {
     builder.extensions.enable(testExtension);
   });
 
-  afterEach(() => {
-    builder.quit();
-  });
-
   it("shows items in correct order", () => {
     const actual = rendered.queryAllByTestId("workload-overview-detail").map(x => x.id);
 

src/features/cluster/workloads/overview/extension-api/reactively-hide-workloads-overview-details-item.test.tsx

@@ -7,17 +7,17 @@ import type { IObservableValue } from "mobx";
 import { computed, observable, runInAction } from "mobx";
 import React from "react";
 import navigateToWorkloadsOverviewInjectable from "../../../../../common/front-end-routing/routes/cluster/workloads/overview/navigate-to-workloads-overview.injectable";
-import type { ApplicationBuilder } from "../../../../../renderer/components/test-utils/get-application-builder";
+import type { ApplicationBuilder } from "../../../../test-utils/application-builder";
-import { getApplicationBuilder } from "../../../../../renderer/components/test-utils/get-application-builder";
+import { setupInitializingApplicationBuilder } from "../../../../test-utils/application-builder";
 
 describe("reactively hide workloads overview details item", () => {
   let builder: ApplicationBuilder;
   let rendered: RenderResult;
   let someObservable: IObservableValue<boolean>;
 
-  beforeEach(async () => {
+  setupInitializingApplicationBuilder(b => builder = b);
-    builder = getApplicationBuilder();
 
+  beforeEach(async () => {
     builder.setEnvironmentToClusterFrame();
 
     someObservable = observable.box(false);
@@ -54,10 +54,6 @@ describe("reactively hide workloads overview details item", () => {
     builder.extensions.enable(testExtension);
   });
 
-  afterEach(() => {
-    builder.quit();
-  });
-
   it("does not show the workload overview detail item", () => {
     const actual = rendered.queryByTestId("some-workload-overview-detail-item");
 

src/features/command-pallet/keyboard-shortcuts.test.tsx

@@ -6,19 +6,13 @@
 import type { RenderResult } from "@testing-library/react";
 import userEvent from "@testing-library/user-event";
 import platformInjectable from "../../common/vars/platform.injectable";
-import { type ApplicationBuilder, getApplicationBuilder } from "../../renderer/components/test-utils/get-application-builder";
+import { type ApplicationBuilder, setupInitializingApplicationBuilder } from "../test-utils/application-builder";
 
 describe("Command Pallet: keyboard shortcut tests", () => {
   let builder: ApplicationBuilder;
   let rendered: RenderResult;
 
-  beforeEach(async () => {
+  setupInitializingApplicationBuilder(b => builder = b);
-    builder = getApplicationBuilder();
-  });
-
-  afterEach(() => {
-    builder.quit();
-  });
 
   describe("when on macOS", () => {
     beforeEach(async () => {

src/features/extension-special-characters-in-page-registrations.test.tsx

@@ -5,8 +5,8 @@
 import React from "react";
 import type { RenderResult } from "@testing-library/react";
 import currentPathInjectable from "../renderer/routes/current-path.injectable";
-import type { ApplicationBuilder } from "../renderer/components/test-utils/get-application-builder";
+import type { ApplicationBuilder } from "./test-utils/application-builder";
-import { getApplicationBuilder } from "../renderer/components/test-utils/get-application-builder";
+import { setupInitializingApplicationBuilder } from "./test-utils/application-builder";
 import type { DiContainer } from "@ogre-tools/injectable";
 import type { FakeExtensionOptions } from "../renderer/components/test-utils/get-extension-fake";
 
@@ -15,9 +15,9 @@ describe("extension special characters in page registrations", () => {
   let rendered: RenderResult;
   let windowDi: DiContainer;
 
-  beforeEach(async () => {
+  setupInitializingApplicationBuilder(b => builder = b);
-    builder = getApplicationBuilder();
 
+  beforeEach(async () => {
     rendered = await builder.render();
 
     builder.extensions.enable(extensionWithPagesHavingSpecialCharacters);
@@ -25,10 +25,6 @@ describe("extension special characters in page registrations", () => {
     windowDi = builder.applicationWindow.only.di;
   });
 
-  afterEach(() => {
-    builder.quit();
-  });
-
   it("renders", () => {
     expect(rendered.container).toMatchSnapshot();
   });

src/features/extensions/navigation-using-application-menu.test.ts

@@ -4,8 +4,8 @@
  */
 
 import type { RenderResult } from "@testing-library/react";
-import type { ApplicationBuilder } from "../../renderer/components/test-utils/get-application-builder";
+import type { ApplicationBuilder } from "../test-utils/application-builder";
-import { getApplicationBuilder } from "../../renderer/components/test-utils/get-application-builder";
+import { setupInitializingApplicationBuilder } from "../test-utils/application-builder";
 import focusWindowInjectable from "../../renderer/navigation/focus-window.injectable";
 
 // TODO: Make components free of side effects by making them deterministic
@@ -16,9 +16,9 @@ describe("extensions - navigation using application menu", () => {
   let rendered: RenderResult;
   let focusWindowMock: jest.Mock;
 
-  beforeEach(async () => {
+  setupInitializingApplicationBuilder(b => builder = b);
-    builder = getApplicationBuilder();
 
+  beforeEach(async () => {
     builder.beforeWindowStart((windowDi) => {
       focusWindowMock = jest.fn();
 
@@ -28,10 +28,6 @@ describe("extensions - navigation using application menu", () => {
     rendered = await builder.render();
   });
 
-  afterEach(() => {
-    builder.quit();
-  });
-
   it("renders", () => {
     expect(rendered.container).toMatchSnapshot();
   });

src/features/helm-charts/add-custom-helm-repository-in-preferences.test.ts

@@ -4,8 +4,8 @@
  */
 import type { RenderResult } from "@testing-library/react";
 import { fireEvent } from "@testing-library/react";
-import type { ApplicationBuilder } from "../../renderer/components/test-utils/get-application-builder";
+import type { ApplicationBuilder } from "../test-utils/application-builder";
-import { getApplicationBuilder } from "../../renderer/components/test-utils/get-application-builder";
+import { setupInitializingApplicationBuilder } from "../test-utils/application-builder";
 import type { AsyncFnMock } from "@async-fn/jest";
 import asyncFn from "@async-fn/jest";
 import type { ExecFile } from "../../common/fs/exec-file.injectable";
@@ -28,11 +28,9 @@ describe("add custom helm repository in preferences", () => {
   let execFileMock: AsyncFnMock<ExecFile>;
   let getActiveHelmRepositoriesMock: AsyncFnMock<() => Promise<AsyncResult<HelmRepo[]>>>;
 
+  setupInitializingApplicationBuilder(b => builder = b);
+
   beforeEach(async () => {
-    jest.useFakeTimers();
-
-    builder = getApplicationBuilder();
-
     testUsingFakeTime("2021-01-01 12:00:00");
 
     execFileMock = asyncFn();
@@ -58,10 +56,6 @@ describe("add custom helm repository in preferences", () => {
     rendered = await builder.render();
   });
 
-  afterEach(() => {
-    builder.quit();
-  });
-
   describe("when navigating to preferences containing helm repositories", () => {
     beforeEach(async () => {
       builder.preferences.navigate();

src/features/helm-charts/add-helm-repository-from-list-in-preferences.test.ts

@@ -3,8 +3,8 @@
  * Licensed under MIT License. See LICENSE in root directory for more information.
  */
 import type { RenderResult } from "@testing-library/react";
-import type { ApplicationBuilder } from "../../renderer/components/test-utils/get-application-builder";
+import type { ApplicationBuilder } from "../test-utils/application-builder";
-import { getApplicationBuilder } from "../../renderer/components/test-utils/get-application-builder";
+import { setupInitializingApplicationBuilder } from "../test-utils/application-builder";
 import type { AsyncFnMock } from "@async-fn/jest";
 import asyncFn from "@async-fn/jest";
 import type { ExecFile } from "../../common/fs/exec-file.injectable";
@@ -26,9 +26,9 @@ describe("add helm repository from list in preferences", () => {
   let getActiveHelmRepositoriesMock: AsyncFnMock<() => Promise<AsyncResult<HelmRepo[]>>>;
   let callForPublicHelmRepositoriesMock: AsyncFnMock<() => Promise<HelmRepo[]>>;
 
-  beforeEach(async () => {
+  setupInitializingApplicationBuilder(b => builder = b);
-    builder = getApplicationBuilder();
 
+  beforeEach(async () => {
     execFileMock = asyncFn();
     getActiveHelmRepositoriesMock = asyncFn();
     callForPublicHelmRepositoriesMock = asyncFn();
@@ -50,10 +50,6 @@ describe("add helm repository from list in preferences", () => {
     rendered = await builder.render();
   });
 
-  afterEach(() => {
-    builder.quit();
-  });
-
   describe("when navigating to preferences containing helm repositories", () => {
     beforeEach(() => {
       builder.preferences.navigate();

src/features/helm-charts/installing-chart/installing-helm-chart-from-new-tab.test.ts

@@ -6,8 +6,8 @@ import type { AsyncFnMock } from "@async-fn/jest";
 import asyncFn from "@async-fn/jest";
 import type { RenderResult } from "@testing-library/react";
 import { fireEvent } from "@testing-library/react";
-import type { ApplicationBuilder } from "../../../renderer/components/test-utils/get-application-builder";
+import type { ApplicationBuilder } from "../../test-utils/application-builder";
-import { getApplicationBuilder } from "../../../renderer/components/test-utils/get-application-builder";
+import { setupInitializingApplicationBuilder } from "../../test-utils/application-builder";
 import { HelmChart } from "../../../common/k8s-api/endpoints/helm-charts.api";
 import getRandomInstallChartTabIdInjectable from "../../../renderer/components/dock/install-chart/get-random-install-chart-tab-id.injectable";
 import type { RequestCreateHelmRelease } from "../../../common/k8s-api/endpoints/helm-releases.api/request-create.injectable";
@@ -38,9 +38,9 @@ describe("installing helm chart from new tab", () => {
   let requestHelmChartValuesMock: AsyncFnMock<RequestHelmChartValues>;
   let requestCreateHelmReleaseMock: AsyncFnMock<RequestCreateHelmRelease>;
 
-  beforeEach(() => {
+  setupInitializingApplicationBuilder(b => builder = b);
-    builder = getApplicationBuilder();
 
+  beforeEach(() => {
     builder.setEnvironmentToClusterFrame();
 
     requestDetailedHelmReleaseMock = asyncFn();
@@ -71,10 +71,6 @@ describe("installing helm chart from new tab", () => {
     builder.namespaces.add("some-other-namespace");
   });
 
-  afterEach(() => {
-    builder.quit();
-  });
-
   describe("given tab for installing chart was not previously opened and application is started", () => {
     let rendered: RenderResult;
     let windowDi: DiContainer;

src/features/helm-charts/installing-chart/installing-helm-chart-from-previously-opened-tab.test.ts

@@ -5,8 +5,8 @@
 import type { AsyncFnMock } from "@async-fn/jest";
 import asyncFn from "@async-fn/jest";
 import type { RenderResult } from "@testing-library/react";
-import type { ApplicationBuilder } from "../../../renderer/components/test-utils/get-application-builder";
+import type { ApplicationBuilder } from "../../test-utils/application-builder";
-import { getApplicationBuilder } from "../../../renderer/components/test-utils/get-application-builder";
+import { setupInitializingApplicationBuilder } from "../../test-utils/application-builder";
 import { HelmChart } from "../../../common/k8s-api/endpoints/helm-charts.api";
 import getRandomInstallChartTabIdInjectable from "../../../renderer/components/dock/install-chart/get-random-install-chart-tab-id.injectable";
 import writeJsonFileInjectable from "../../../common/fs/write-json-file.injectable";
@@ -23,9 +23,9 @@ describe("installing helm chart from previously opened tab", () => {
   let requestHelmChartVersionsMock: AsyncFnMock<RequestHelmChartVersions>;
   let requestHelmChartValuesMock: AsyncFnMock<RequestHelmChartValues>;
 
-  beforeEach(() => {
+  setupInitializingApplicationBuilder(b => builder = b);
-    builder = getApplicationBuilder();
 
+  beforeEach(() => {
     builder.setEnvironmentToClusterFrame();
 
     requestHelmChartVersionsMock = asyncFn();
@@ -48,10 +48,6 @@ describe("installing helm chart from previously opened tab", () => {
     });
   });
 
-  afterEach(() => {
-    builder.quit();
-  });
-
   describe("given tab for installing chart was previously opened, when application is started", () => {
     let rendered: RenderResult;
 

src/features/helm-charts/installing-chart/opening-dock-tab-for-installing-helm-chart.test.ts

@@ -6,8 +6,8 @@ import type { AsyncFnMock } from "@async-fn/jest";
 import asyncFn from "@async-fn/jest";
 import type { RenderResult } from "@testing-library/react";
 import { fireEvent } from "@testing-library/react";
-import type { ApplicationBuilder } from "../../../renderer/components/test-utils/get-application-builder";
+import type { ApplicationBuilder } from "../../test-utils/application-builder";
-import { getApplicationBuilder } from "../../../renderer/components/test-utils/get-application-builder";
+import { setupInitializingApplicationBuilder } from "../../test-utils/application-builder";
 import { HelmChart } from "../../../common/k8s-api/endpoints/helm-charts.api";
 import getRandomInstallChartTabIdInjectable from "../../../renderer/components/dock/install-chart/get-random-install-chart-tab-id.injectable";
 import requestCreateHelmReleaseInjectable from "../../../common/k8s-api/endpoints/helm-releases.api/request-create.injectable";
@@ -30,9 +30,9 @@ describe("opening dock tab for installing helm chart", () => {
   let requestHelmChartReadmeMock: AsyncFnMock<RequestHelmChartReadme>;
   let requestHelmChartValuesMock: jest.Mock;
 
-  beforeEach(() => {
+  setupInitializingApplicationBuilder(b => builder = b);
-    builder = getApplicationBuilder();
 
+  beforeEach(() => {
     requestHelmChartsMock = asyncFn();
     requestHelmChartVersionsMock = asyncFn();
     requestHelmChartReadmeMock = asyncFn();
@@ -56,10 +56,6 @@ describe("opening dock tab for installing helm chart", () => {
     builder.setEnvironmentToClusterFrame();
   });
 
-  afterEach(() => {
-    builder.quit();
-  });
-
   describe("given application is started, when navigating to helm charts", () => {
     let rendered: RenderResult;
 

src/features/helm-charts/listing-active-helm-repositories-in-preferences.test.ts

@@ -3,8 +3,8 @@
  * Licensed under MIT License. See LICENSE in root directory for more information.
  */
 import type { RenderResult } from "@testing-library/react";
-import type { ApplicationBuilder } from "../../renderer/components/test-utils/get-application-builder";
+import type { ApplicationBuilder } from "../test-utils/application-builder";
-import { getApplicationBuilder } from "../../renderer/components/test-utils/get-application-builder";
+import { setupInitializingApplicationBuilder } from "../test-utils/application-builder";
 import type { ReadYamlFile } from "../../common/fs/read-yaml-file.injectable";
 import readYamlFileInjectable from "../../common/fs/read-yaml-file.injectable";
 import type { AsyncFnMock } from "@async-fn/jest";
@@ -27,9 +27,9 @@ describe("listing active helm repositories in preferences", () => {
   let loggerStub: Logger;
   let showErrorNotificationMock: jest.Mock;
 
-  beforeEach(async () => {
+  setupInitializingApplicationBuilder(b => builder = b);
-    builder = getApplicationBuilder();
 
+  beforeEach(async () => {
     readYamlFileMock = asyncFn();
     execFileMock = asyncFn();
     showErrorNotificationMock = jest.fn();
@@ -57,10 +57,6 @@ describe("listing active helm repositories in preferences", () => {
     rendered = await builder.render();
   });
 
-  afterEach(() => {
-    builder.quit();
-  });
-
   describe("when navigating to preferences containing helm repositories", () => {
     beforeEach(async () => {
       builder.preferences.navigate();

src/features/helm-charts/remove-helm-repository-from-list-of-active-repository-in-preferences.test.ts

@@ -4,8 +4,8 @@
  */
 import type { RenderResult } from "@testing-library/react";
 import { fireEvent } from "@testing-library/react";
-import type { ApplicationBuilder } from "../../renderer/components/test-utils/get-application-builder";
+import type { ApplicationBuilder } from "../test-utils/application-builder";
-import { getApplicationBuilder } from "../../renderer/components/test-utils/get-application-builder";
+import { setupInitializingApplicationBuilder } from "../test-utils/application-builder";
 import type { AsyncFnMock } from "@async-fn/jest";
 import asyncFn from "@async-fn/jest";
 import type { ExecFile } from "../../common/fs/exec-file.injectable";
@@ -22,9 +22,9 @@ describe("remove helm repository from list of active repositories in preferences
   let getActiveHelmRepositoriesMock: AsyncFnMock<() => Promise<AsyncResult<HelmRepo[]>>>;
   let execFileMock: AsyncFnMock<ExecFile>;
 
-  beforeEach(async () => {
+  setupInitializingApplicationBuilder(b => builder = b);
-    builder = getApplicationBuilder();
 
+  beforeEach(async () => {
     execFileMock = asyncFn();
     getActiveHelmRepositoriesMock = asyncFn();
 
@@ -41,10 +41,6 @@ describe("remove helm repository from list of active repositories in preferences
     rendered = await builder.render();
   });
 
-  afterEach(() => {
-    builder.quit();
-  });
-
   describe("when navigating to preferences containing helm repositories", () => {
     beforeEach(async () => {
       builder.preferences.navigate();

src/features/helm-charts/upgrade-chart/upgrade-chart-new-tab.test.ts

@@ -19,8 +19,8 @@ import type { RequestHelmReleases } from "../../../common/k8s-api/endpoints/helm
 import requestHelmReleasesInjectable from "../../../common/k8s-api/endpoints/helm-releases.api/request-releases.injectable";
 import { advanceFakeTime, testUsingFakeTime } from "../../../common/test-utils/use-fake-time";
 import dockStoreInjectable from "../../../renderer/components/dock/dock/store.injectable";
-import type { ApplicationBuilder } from "../../../renderer/components/test-utils/get-application-builder";
+import type { ApplicationBuilder } from "../../test-utils/application-builder";
-import { getApplicationBuilder } from "../../../renderer/components/test-utils/get-application-builder";
+import { setupInitializingApplicationBuilder } from "../../test-utils/application-builder";
 
 describe("New Upgrade Helm Chart Dock Tab", () => {
   let builder: ApplicationBuilder;
@@ -31,8 +31,9 @@ describe("New Upgrade Helm Chart Dock Tab", () => {
   let requestHelmChartVersionsMock: AsyncFnMock<RequestHelmChartVersions>;
   let navigateToHelmReleases: NavigateToHelmReleases;
 
+  setupInitializingApplicationBuilder(b => builder = b);
+
   beforeEach(async () => {
-    builder = getApplicationBuilder();
     builder.setEnvironmentToClusterFrame();
 
     builder.beforeWindowStart((windowDi) => {
@@ -64,10 +65,6 @@ describe("New Upgrade Helm Chart Dock Tab", () => {
     dockStore.closeTab("terminal");
   });
 
-  afterEach(() => {
-    builder.quit();
-  });
-
   describe("given a namespace is selected", () => {
     beforeEach(() => {
       builder.namespaces.select("my-second-namespace");

src/features/helm-releases/showing-details-for-helm-release.test.ts

@@ -2,8 +2,8 @@
  * Copyright (c) OpenLens Authors. All rights reserved.
  * Licensed under MIT License. See LICENSE in root directory for more information.
  */
-import type { ApplicationBuilder } from "../../renderer/components/test-utils/get-application-builder";
+import type { ApplicationBuilder } from "../test-utils/application-builder";
-import { getApplicationBuilder } from "../../renderer/components/test-utils/get-application-builder";
+import { setupInitializingApplicationBuilder } from "../test-utils/application-builder";
 import navigateToHelmReleasesInjectable from "../../common/front-end-routing/routes/cluster/helm/releases/navigate-to-helm-releases.injectable";
 import type { RenderResult } from "@testing-library/react";
 import { fireEvent } from "@testing-library/react";
@@ -44,11 +44,11 @@ describe("showing details for helm release", () => {
   let showSuccessNotificationMock: jest.Mock;
   let showCheckedErrorNotificationMock: jest.Mock;
 
+  setupInitializingApplicationBuilder(b => builder = b);
+
   beforeEach(() => {
     testUsingFakeTime("2015-10-21T07:28:00Z");
 
-    builder = getApplicationBuilder();
-
     builder.setEnvironmentToClusterFrame();
 
     requestHelmReleasesMock = asyncFn();
@@ -83,10 +83,6 @@ describe("showing details for helm release", () => {
     builder.namespaces.select("some-other-namespace");
   });
 
-  afterEach(() => {
-    builder.quit();
-  });
-
   describe("given application is started", () => {
     let rendered: RenderResult;
 

src/features/navigate-to-extension-page.test.tsx

@@ -9,8 +9,8 @@ import isEmpty from "lodash/isEmpty";
 import queryParametersInjectable from "../renderer/routes/query-parameters.injectable";
 import currentPathInjectable from "../renderer/routes/current-path.injectable";
 import type { IComputedValue } from "mobx";
-import type { ApplicationBuilder } from "../renderer/components/test-utils/get-application-builder";
+import type { ApplicationBuilder } from "./test-utils/application-builder";
-import { getApplicationBuilder } from "../renderer/components/test-utils/get-application-builder";
+import { setupInitializingApplicationBuilder } from "./test-utils/application-builder";
 import type { FakeExtensionOptions } from "../renderer/components/test-utils/get-extension-fake";
 import type { LensRendererExtension } from "../extensions/lens-renderer-extension";
 
@@ -21,9 +21,9 @@ describe("navigate to extension page", () => {
   let currentPath: IComputedValue<string>;
   let builder: ApplicationBuilder;
 
-  beforeEach(async () => {
+  setupInitializingApplicationBuilder(b => builder = b);
-    builder = getApplicationBuilder();
 
+  beforeEach(async () => {
     builder.extensions.enable(extensionWithPagesHavingParameters);
 
     rendered = await builder.render();
@@ -37,10 +37,6 @@ describe("navigate to extension page", () => {
     currentPath = windowDi.inject(currentPathInjectable);
   });
 
-  afterEach(() => {
-    builder.quit();
-  });
-
   it("renders", () => {
     expect(rendered.container).toMatchSnapshot();
   });

src/features/navigating-between-routes.test.tsx

@@ -11,8 +11,8 @@ import { routeSpecificComponentInjectionToken } from "../renderer/routes/route-s
 import { observer } from "mobx-react";
 import type { Route } from "../common/front-end-routing/front-end-route-injection-token";
 import { frontEndRouteInjectionToken } from "../common/front-end-routing/front-end-route-injection-token";
-import type { ApplicationBuilder } from "../renderer/components/test-utils/get-application-builder";
+import type { ApplicationBuilder } from "./test-utils/application-builder";
-import { getApplicationBuilder } from "../renderer/components/test-utils/get-application-builder";
+import { setupInitializingApplicationBuilder } from "./test-utils/application-builder";
 import currentRouteInjectable from "../renderer/routes/current-route.injectable";
 import currentPathInjectable from "../renderer/routes/current-path.injectable";
 import queryParametersInjectable from "../renderer/routes/query-parameters.injectable";
@@ -23,13 +23,7 @@ describe("navigating between routes", () => {
   let rendered: RenderResult;
   let builder: ApplicationBuilder;
 
-  beforeEach(async () => {
+  setupInitializingApplicationBuilder(b => builder = b);
-    builder = getApplicationBuilder();
-  });
-
-  afterEach(() => {
-    builder.quit();
-  });
 
   describe("given route without path parameters", () => {
     let windowDi: DiContainer;

src/features/pod-logs/download-logs.test.tsx

@@ -8,8 +8,8 @@ import { act, waitFor } from "@testing-library/react";
 import getPodByIdInjectable from "../../renderer/components/+workloads-pods/get-pod-by-id.injectable";
 import getPodsByOwnerIdInjectable from "../../renderer/components/+workloads-pods/get-pods-by-owner-id.injectable";
 import openSaveFileDialogInjectable from "../../renderer/utils/save-file.injectable";
-import type { ApplicationBuilder } from "../../renderer/components/test-utils/get-application-builder";
+import type { ApplicationBuilder } from "../test-utils/application-builder";
-import { getApplicationBuilder } from "../../renderer/components/test-utils/get-application-builder";
+import { setupInitializingApplicationBuilder } from "../test-utils/application-builder";
 import dockStoreInjectable from "../../renderer/components/dock/dock/store.injectable";
 import areLogsPresentInjectable from "../../renderer/components/dock/logs/are-logs-present.injectable";
 import type { CallForLogs } from "../../renderer/components/dock/logs/call-for-logs.injectable";
@@ -46,11 +46,11 @@ describe("download logs options in logs dock tab", () => {
     image: "docker.io/prom/node-exporter:v1.0.0-rc.0",
   };
 
+  setupInitializingApplicationBuilder(b => builder = b);
+
   beforeEach(() => {
     const selectedPod = dockerPod;
 
-    builder = getApplicationBuilder();
-
     builder.setEnvironmentToClusterFrame();
 
     callForLogsMock = jest.fn();
@@ -95,10 +95,6 @@ describe("download logs options in logs dock tab", () => {
     });
   });
 
-  afterEach(() => {
-    builder.quit();
-  });
-
   describe("opening pod logs", () => {
     beforeEach(async () => {
       rendered = await builder.render();

src/features/preferences/closing-preferences.test.tsx

@@ -5,8 +5,8 @@
 import type { DiContainer } from "@ogre-tools/injectable";
 import { getInjectable } from "@ogre-tools/injectable";
 import type { RenderResult } from "@testing-library/react";
-import type { ApplicationBuilder } from "../../renderer/components/test-utils/get-application-builder";
+import type { ApplicationBuilder } from "../test-utils/application-builder";
-import { getApplicationBuilder } from "../../renderer/components/test-utils/get-application-builder";
+import { setupInitializingApplicationBuilder } from "../test-utils/application-builder";
 import currentPathInjectable from "../../renderer/routes/current-path.injectable";
 import { frontEndRouteInjectionToken } from "../../common/front-end-routing/front-end-route-injection-token";
 import { computed, runInAction } from "mobx";
@@ -21,9 +21,9 @@ import historyInjectable from "../../renderer/navigation/history.injectable";
 describe("preferences - closing-preferences", () => {
   let builder: ApplicationBuilder;
 
-  beforeEach(() => {
+  setupInitializingApplicationBuilder(b => builder = b);
-    builder = getApplicationBuilder();
 
+  beforeEach(() => {
     builder.beforeWindowStart((windowDi) => {
       runInAction(() => {
         windowDi.register(
@@ -47,10 +47,6 @@ describe("preferences - closing-preferences", () => {
     });
   });
 
-  afterEach(() => {
-    builder.quit();
-  });
-
   describe("given already in a page", () => {
     let rendered: RenderResult;
     let windowDi: DiContainer;

src/features/preferences/extension-adding-preference-tabs.test.tsx

@@ -5,8 +5,8 @@
 import type { RenderResult } from "@testing-library/react";
 import type { IObservableValue } from "mobx";
 import { runInAction, computed, observable } from "mobx";
-import type { ApplicationBuilder } from "../../renderer/components/test-utils/get-application-builder";
+import type { ApplicationBuilder } from "../test-utils/application-builder";
-import { getApplicationBuilder } from "../../renderer/components/test-utils/get-application-builder";
+import { setupInitializingApplicationBuilder } from "../test-utils/application-builder";
 import type { Discover } from "../../renderer/components/test-utils/discovery-of-html-elements";
 import { discoverFor } from "../../renderer/components/test-utils/discovery-of-html-elements";
 import React from "react";
@@ -14,13 +14,7 @@ import React from "react";
 describe("preferences: extension adding preference tabs", () => {
   let builder: ApplicationBuilder;
 
-  beforeEach(() => {
+  setupInitializingApplicationBuilder(b => builder = b);
-    builder = getApplicationBuilder();
-  });
-
-  afterEach(() => {
-    builder.quit();
-  });
 
   describe("given in preferences, when extension with preference tabs is enabled", () => {
     let rendered: RenderResult;

src/features/preferences/hiding-of-empty-branches.test.tsx

@@ -7,8 +7,8 @@ import type { DiContainer } from "@ogre-tools/injectable";
 import { getInjectable } from "@ogre-tools/injectable";
 import type { RenderResult } from "@testing-library/react";
 import { runInAction } from "mobx";
-import type { ApplicationBuilder } from "../../renderer/components/test-utils/get-application-builder";
+import type { ApplicationBuilder } from "../test-utils/application-builder";
-import { getApplicationBuilder } from "../../renderer/components/test-utils/get-application-builder";
+import { setupInitializingApplicationBuilder } from "../test-utils/application-builder";
 import { preferenceItemInjectionToken } from "./renderer/preference-items/preference-item-injection-token";
 import type { Discover } from "../../renderer/components/test-utils/discovery-of-html-elements";
 import { discoverFor } from "../../renderer/components/test-utils/discovery-of-html-elements";
@@ -19,16 +19,14 @@ describe("preferences - hiding-of-empty-branches, given in preferences page", ()
   let windowDi: DiContainer;
   let discover: Discover;
 
+  setupInitializingApplicationBuilder(b => builder = b);
+
   beforeEach(async () => {
-    builder = getApplicationBuilder();
-
     rendered = await builder.render();
-
     discover = discoverFor(() => rendered);
+    windowDi = builder.applicationWindow.only.di;
 
     builder.preferences.navigate();
-
-    windowDi = builder.applicationWindow.only.di;
   });
 
   describe("given tab group and empty tabs", () => {

src/features/preferences/navigation-to-application-preferences.test.tsx

@@ -4,8 +4,8 @@
  */
 import React from "react";
 import type { RenderResult } from "@testing-library/react";
-import type { ApplicationBuilder } from "../../renderer/components/test-utils/get-application-builder";
+import type { ApplicationBuilder } from "../test-utils/application-builder";
-import { getApplicationBuilder } from "../../renderer/components/test-utils/get-application-builder";
+import { setupInitializingApplicationBuilder } from "../test-utils/application-builder";
 import navigateToProxyPreferencesInjectable from "./common/navigate-to-proxy-preferences.injectable";
 import type { Discover } from "../../renderer/components/test-utils/discovery-of-html-elements";
 import { discoverFor } from "../../renderer/components/test-utils/discovery-of-html-elements";
@@ -14,13 +14,7 @@ import type { FakeExtensionOptions } from "../../renderer/components/test-utils/
 describe("preferences - navigation to application preferences", () => {
   let builder: ApplicationBuilder;
 
-  beforeEach(() => {
+  setupInitializingApplicationBuilder(b => builder = b);
-    builder = getApplicationBuilder();
-  });
-
-  afterEach(() => {
-    builder.quit();
-  });
 
   describe("given in preferences, when rendered", () => {
     let rendered: RenderResult;

src/features/preferences/navigation-to-editor-preferences.test.ts

@@ -3,8 +3,8 @@
  * Licensed under MIT License. See LICENSE in root directory for more information.
  */
 import type { RenderResult } from "@testing-library/react";
-import type { ApplicationBuilder } from "../../renderer/components/test-utils/get-application-builder";
+import type { ApplicationBuilder } from "../test-utils/application-builder";
-import { getApplicationBuilder } from "../../renderer/components/test-utils/get-application-builder";
+import { setupInitializingApplicationBuilder } from "../test-utils/application-builder";
 import type { Discover } from "../../renderer/components/test-utils/discovery-of-html-elements";
 import { discoverFor } from "../../renderer/components/test-utils/discovery-of-html-elements";
 
@@ -12,13 +12,7 @@ describe("preferences - navigation to editor preferences", () => {
   let builder: ApplicationBuilder;
   let discover: Discover;
 
-  beforeEach(() => {
+  setupInitializingApplicationBuilder(b => builder = b);
-    builder = getApplicationBuilder();
-  });
-
-  afterEach(() => {
-    builder.quit();
-  });
 
   describe("given in preferences, when rendered", () => {
     let rendered: RenderResult;

src/features/preferences/navigation-to-extension-specific-preferences.test.tsx

@@ -3,8 +3,8 @@
  * Licensed under MIT License. See LICENSE in root directory for more information.
  */
 import type { RenderResult } from "@testing-library/react";
-import type { ApplicationBuilder } from "../../renderer/components/test-utils/get-application-builder";
+import type { ApplicationBuilder } from "../test-utils/application-builder";
-import { getApplicationBuilder } from "../../renderer/components/test-utils/get-application-builder";
+import { setupInitializingApplicationBuilder } from "../test-utils/application-builder";
 import React from "react";
 import "@testing-library/jest-dom/extend-expect";
 import type { FakeExtensionOptions } from "../../renderer/components/test-utils/get-extension-fake";
@@ -15,13 +15,7 @@ import logErrorInjectable from "../../common/log-error.injectable";
 describe("preferences - navigation to extension specific preferences", () => {
   let builder: ApplicationBuilder;
 
-  beforeEach(() => {
+  setupInitializingApplicationBuilder(b => builder = b);
-    builder = getApplicationBuilder();
-  });
-
-  afterEach(() => {
-    builder.quit();
-  });
 
   describe("given in preferences, when rendered", () => {
     let rendered: RenderResult;

src/features/preferences/navigation-to-kubernetes-preferences.test.ts

@@ -3,8 +3,8 @@
  * Licensed under MIT License. See LICENSE in root directory for more information.
  */
 import type { RenderResult } from "@testing-library/react";
-import type { ApplicationBuilder } from "../../renderer/components/test-utils/get-application-builder";
+import type { ApplicationBuilder } from "../test-utils/application-builder";
-import { getApplicationBuilder } from "../../renderer/components/test-utils/get-application-builder";
+import { setupInitializingApplicationBuilder } from "../test-utils/application-builder";
 import requestPublicHelmRepositoriesInjectable from "../helm-charts/child-features/preferences/renderer/adding-of-public-helm-repository/public-helm-repositories/request-public-helm-repositories.injectable";
 import getActiveHelmRepositoriesInjectable from "../../main/helm/repositories/get-active-helm-repositories/get-active-helm-repositories.injectable";
 import type { Discover } from "../../renderer/components/test-utils/discovery-of-html-elements";
@@ -13,13 +13,7 @@ import { discoverFor } from "../../renderer/components/test-utils/discovery-of-h
 describe("preferences - navigation to kubernetes preferences", () => {
   let builder: ApplicationBuilder;
 
-  beforeEach(() => {
+  setupInitializingApplicationBuilder(b => builder = b);
-    builder = getApplicationBuilder();
-  });
-
-  afterEach(() => {
-    builder.quit();
-  });
 
   describe("given in preferences, when rendered", () => {
     let rendered: RenderResult;

src/features/preferences/navigation-to-proxy-preferences.test.ts

@@ -3,21 +3,15 @@
  * Licensed under MIT License. See LICENSE in root directory for more information.
  */
 import type { RenderResult } from "@testing-library/react";
-import type { ApplicationBuilder } from "../../renderer/components/test-utils/get-application-builder";
+import type { ApplicationBuilder } from "../test-utils/application-builder";
-import { getApplicationBuilder } from "../../renderer/components/test-utils/get-application-builder";
+import { setupInitializingApplicationBuilder } from "../test-utils/application-builder";
 import type { Discover } from "../../renderer/components/test-utils/discovery-of-html-elements";
 import { discoverFor } from "../../renderer/components/test-utils/discovery-of-html-elements";
 
 describe("preferences - navigation to proxy preferences", () => {
   let builder: ApplicationBuilder;
 
-  beforeEach(() => {
+  setupInitializingApplicationBuilder(b => builder = b);
-    builder = getApplicationBuilder();
-  });
-
-  afterEach(() => {
-    builder.quit();
-  });
 
   describe("given in preferences, when rendered", () => {
     let rendered: RenderResult;

src/features/preferences/navigation-to-telemetry-preferences.test.tsx

@@ -4,8 +4,8 @@
  */
 import type { RenderResult } from "@testing-library/react";
 import React from "react";
-import type { ApplicationBuilder } from "../../renderer/components/test-utils/get-application-builder";
+import type { ApplicationBuilder } from "../test-utils/application-builder";
-import { getApplicationBuilder } from "../../renderer/components/test-utils/get-application-builder";
+import { setupInitializingApplicationBuilder } from "../test-utils/application-builder";
 import navigateToTelemetryPreferencesInjectable from "./common/navigate-to-telemetry-preferences.injectable";
 import sentryDataSourceNameInjectable from "../../common/vars/sentry-dsn-url.injectable";
 import type { FakeExtensionOptions } from "../../renderer/components/test-utils/get-extension-fake";
@@ -15,13 +15,7 @@ import { discoverFor } from "../../renderer/components/test-utils/discovery-of-h
 describe("preferences - navigation to telemetry preferences", () => {
   let builder: ApplicationBuilder;
 
-  beforeEach(() => {
+  setupInitializingApplicationBuilder(b => builder = b);
-    builder = getApplicationBuilder();
-  });
-
-  afterEach(() => {
-    builder.quit();
-  });
 
   describe("given in preferences, when rendered", () => {
     let rendered: RenderResult;

src/features/preferences/navigation-to-terminal-preferences.test.ts

@@ -3,21 +3,15 @@
  * Licensed under MIT License. See LICENSE in root directory for more information.
  */
 import type { RenderResult } from "@testing-library/react";
-import type { ApplicationBuilder } from "../../renderer/components/test-utils/get-application-builder";
+import type { ApplicationBuilder } from "../test-utils/application-builder";
-import { getApplicationBuilder } from "../../renderer/components/test-utils/get-application-builder";
+import { setupInitializingApplicationBuilder } from "../test-utils/application-builder";
 import type { Discover } from "../../renderer/components/test-utils/discovery-of-html-elements";
 import { discoverFor } from "../../renderer/components/test-utils/discovery-of-html-elements";
 
 describe("preferences - navigation to terminal preferences", () => {
   let builder: ApplicationBuilder;
 
-  beforeEach(() => {
+  setupInitializingApplicationBuilder(b => builder = b);
-    builder = getApplicationBuilder();
-  });
-
-  afterEach(() => {
-    builder.quit();
-  });
 
   describe("given in preferences, when rendered", () => {
     let rendered: RenderResult;

src/features/preferences/navigation-using-application-menu.test.ts

@@ -4,8 +4,8 @@
  */
 
 import type { RenderResult } from "@testing-library/react";
-import type { ApplicationBuilder } from "../../renderer/components/test-utils/get-application-builder";
+import type { ApplicationBuilder } from "../test-utils/application-builder";
-import { getApplicationBuilder } from "../../renderer/components/test-utils/get-application-builder";
+import { setupInitializingApplicationBuilder } from "../test-utils/application-builder";
 import type { Discover } from "../../renderer/components/test-utils/discovery-of-html-elements";
 import { discoverFor } from "../../renderer/components/test-utils/discovery-of-html-elements";
 
@@ -13,18 +13,14 @@ describe("preferences - navigation using application menu", () => {
   let builder: ApplicationBuilder;
   let rendered: RenderResult;
   let discover: Discover;
+  
+  setupInitializingApplicationBuilder(b => builder = b);
 
   beforeEach(async () => {
-    builder = getApplicationBuilder();
-
     rendered = await builder.render();
     discover = discoverFor(() => rendered);
   });
 
-  afterEach(() => {
-    builder.quit();
-  });
-
   it("renders", () => {
     expect(rendered.container).toMatchSnapshot();
   });

src/features/preferences/navigation-using-tray.test.ts

@@ -3,8 +3,8 @@
  * Licensed under MIT License. See LICENSE in root directory for more information.
  */
 import type { RenderResult } from "@testing-library/react";
-import type { ApplicationBuilder } from "../../renderer/components/test-utils/get-application-builder";
+import type { ApplicationBuilder } from "../test-utils/application-builder";
-import { getApplicationBuilder } from "../../renderer/components/test-utils/get-application-builder";
+import { setupInitializingApplicationBuilder } from "../test-utils/application-builder";
 import type { Discover } from "../../renderer/components/test-utils/discovery-of-html-elements";
 import { discoverFor } from "../../renderer/components/test-utils/discovery-of-html-elements";
 
@@ -13,17 +13,13 @@ describe("show-about-using-tray", () => {
   let rendered: RenderResult;
   let discover: Discover;
 
-  beforeEach(async () => {
+  setupInitializingApplicationBuilder(b => builder = b);
-    builder = getApplicationBuilder();
 
+  beforeEach(async () => {
     rendered = await builder.render();
     discover = discoverFor(() => rendered);
   });
 
-  afterEach(() => {
-    builder.quit();
-  });
-
   it("renders", () => {
     expect(rendered.baseElement).toMatchSnapshot();
   });

src/features/preferences/urls-of-legacy-extensions.test.tsx

@@ -3,8 +3,8 @@
  * Licensed under MIT License. See LICENSE in root directory for more information.
  */
 import type { RenderResult } from "@testing-library/react";
-import type { ApplicationBuilder } from "../../renderer/components/test-utils/get-application-builder";
+import type { ApplicationBuilder } from "../test-utils/application-builder";
-import { getApplicationBuilder } from "../../renderer/components/test-utils/get-application-builder";
+import { setupInitializingApplicationBuilder } from "../test-utils/application-builder";
 import type { Discover } from "../../renderer/components/test-utils/discovery-of-html-elements";
 import { discoverFor } from "../../renderer/components/test-utils/discovery-of-html-elements";
 import React from "react";
@@ -14,13 +14,7 @@ import navigateInjectable from "../../renderer/navigation/navigate.injectable";
 describe("preferences: URLs of legacy extensions", () => {
   let builder: ApplicationBuilder;
 
-  beforeEach(() => {
+  setupInitializingApplicationBuilder(b => builder = b);
-    builder = getApplicationBuilder();
-  });
-
-  afterEach(() => {
-    builder.quit();
-  });
 
   describe("given extension with custom preferences and a custom preference tab", () => {
     let rendered: RenderResult;

src/features/quitting-and-restarting-the-app/opening-application-window-using-tray.test.ts

@@ -3,8 +3,8 @@
  * Licensed under MIT License. See LICENSE in root directory for more information.
  */
 
-import type { ApplicationBuilder } from "../../renderer/components/test-utils/get-application-builder";
+import type { ApplicationBuilder } from "../test-utils/application-builder";
-import { getApplicationBuilder } from "../../renderer/components/test-utils/get-application-builder";
+import { setupInitializingApplicationBuilder } from "../test-utils/application-builder";
 import type { AsyncFnMock } from "@async-fn/jest";
 import asyncFn from "@async-fn/jest";
 import type { LensWindow } from "../../main/start-main-application/lens-window/application-window/create-lens-window.injectable";
@@ -17,8 +17,11 @@ import staticFilesDirectoryInjectable from "../../common/vars/static-files-direc
 import { matches } from "jest-mock-extended";
 
 describe("opening application window using tray", () => {
+  let builder: ApplicationBuilder;
+
+  setupInitializingApplicationBuilder(b => builder = b);
+
   describe("given application has started", () => {
-    let builder: ApplicationBuilder;
     let createElectronWindowMock: jest.Mock;
     let expectWindowsToBeOpen: (windowIds: string[]) => void;
     let callForSplashWindowHtmlMock: AsyncFnMock<() => Promise<void>>;
@@ -31,8 +34,6 @@ describe("opening application window using tray", () => {
 
       focusApplicationMock = jest.fn();
 
-      builder = getApplicationBuilder();
-
       builder.beforeApplicationStart((mainDi) => {
         mainDi.override(focusApplicationInjectable, () => focusApplicationMock);
 
@@ -76,10 +77,6 @@ describe("opening application window using tray", () => {
       await builder.render();
     });
 
-    afterEach(() => {
-      builder.quit();
-    });
-
     it("only the first application window is open", () => {
       expectWindowsToBeOpen(["first-application-window"]);
     });

src/features/quitting-and-restarting-the-app/quitting-the-app-using-application-menu.test.ts

@@ -3,8 +3,8 @@
  * Licensed under MIT License. See LICENSE in root directory for more information.
  */
 
-import type { ApplicationBuilder } from "../../renderer/components/test-utils/get-application-builder";
+import type { ApplicationBuilder } from "../test-utils/application-builder";
-import { getApplicationBuilder } from "../../renderer/components/test-utils/get-application-builder";
+import { setupInitializingApplicationBuilder } from "../test-utils/application-builder";
 import type { ClusterManager } from "../../main/cluster/manager";
 import exitAppInjectable from "../../main/electron-app/features/exit-app.injectable";
 import clusterManagerInjectable from "../../main/cluster/manager.injectable";
@@ -12,16 +12,17 @@ import stopServicesAndExitAppInjectable from "../../main/stop-services-and-exit-
 import { advanceFakeTime, testUsingFakeTime } from "../../common/test-utils/use-fake-time";
 
 describe("quitting the app using application menu", () => {
+  let builder: ApplicationBuilder;
+
+  setupInitializingApplicationBuilder(b => builder = b);
+
   describe("given application has started", () => {
-    let builder: ApplicationBuilder;
     let clusterManagerStub: ClusterManager;
     let exitAppMock: jest.Mock;
 
     beforeEach(async () => {
       testUsingFakeTime("2015-10-21T07:28:00Z");
 
-      builder = getApplicationBuilder();
-
       builder.beforeApplicationStart(
         (mainDi) => {
           mainDi.unoverride(stopServicesAndExitAppInjectable);
@@ -37,10 +38,6 @@ describe("quitting the app using application menu", () => {
       await builder.render();
     });
 
-    afterEach(() => {
-      builder.quit();
-    });
-
     it("first application window is open", () => {
       const windows = builder.applicationWindow.getAll();
 

src/features/resolve-system-proxy/resolve-system-proxy.test.ts

@@ -4,8 +4,8 @@
  */
 import type { AsyncFnMock } from "@async-fn/jest";
 import asyncFn from "@async-fn/jest";
-import type { ApplicationBuilder } from "../../renderer/components/test-utils/get-application-builder";
+import type { ApplicationBuilder } from "../test-utils/application-builder";
-import { getApplicationBuilder } from "../../renderer/components/test-utils/get-application-builder";
+import { setupInitializingApplicationBuilder } from "../test-utils/application-builder";
 import type { ResolveSystemProxy } from "../../common/utils/resolve-system-proxy/resolve-system-proxy-injection-token";
 import { resolveSystemProxyInjectionToken } from "../../common/utils/resolve-system-proxy/resolve-system-proxy-injection-token";
 import resolveSystemProxyFromElectronInjectable from "../../main/utils/resolve-system-proxy/resolve-system-proxy-from-electron.injectable";
@@ -16,9 +16,9 @@ describe("resolve-system-proxy", () => {
   let actualPromise: Promise<string>;
   let resolveSystemProxyFromElectronMock: AsyncFnMock<ResolveSystemProxy>;
 
-  beforeEach(async () => {
+  setupInitializingApplicationBuilder(b => builder = b);
-    builder = getApplicationBuilder();
 
+  beforeEach(async () => {
     resolveSystemProxyFromElectronMock = asyncFn();
 
     builder.beforeApplicationStart((mainDi) => {
@@ -31,10 +31,6 @@ describe("resolve-system-proxy", () => {
     await builder.render();
   });
 
-  afterEach(() => {
-    builder.quit();
-  });
-
   describe("given in main, when called with URL", () => {
     beforeEach(async () => {
       const resolveSystemProxyInMain = builder.mainDi.inject(

src/features/routes/extension-api/reactively-disable-global-pages.test.tsx

@@ -7,8 +7,8 @@ import type { IObservableValue } from "mobx";
 import { observable, runInAction, computed } from "mobx";
 import React from "react";
 import type { TestExtensionRenderer } from "../../../renderer/components/test-utils/get-extension-fake";
-import type { ApplicationBuilder } from "../../../renderer/components/test-utils/get-application-builder";
+import type { ApplicationBuilder } from "../../test-utils/application-builder";
-import { getApplicationBuilder } from "../../../renderer/components/test-utils/get-application-builder";
+import { setupInitializingApplicationBuilder } from "../../test-utils/application-builder";
 
 describe("reactively disable global pages", () => {
   let builder: ApplicationBuilder;
@@ -16,9 +16,9 @@ describe("reactively disable global pages", () => {
   let someObservable: IObservableValue<boolean>;
   let rendererTestExtension: TestExtensionRenderer;
 
-  beforeEach(async () => {
+  setupInitializingApplicationBuilder(b => builder = b);
-    builder = getApplicationBuilder();
 
+  beforeEach(async () => {
     someObservable = observable.box(false);
 
     const testExtension = {
@@ -43,10 +43,6 @@ describe("reactively disable global pages", () => {
     rendererTestExtension = builder.extensions.get("test-extension-id").applicationWindows.only;
   });
 
-  afterEach(() => {
-    builder.quit();
-  });
-
   it("when navigating to the page, does not show the page", () => {
     rendererTestExtension.navigate();
 

src/features/status-bar/status-bar-items-originating-from-extensions.test.tsx

@@ -4,8 +4,8 @@
  */
 import type { RenderResult } from "@testing-library/react";
 import React from "react";
-import type { ApplicationBuilder } from "../../renderer/components/test-utils/get-application-builder";
+import type { ApplicationBuilder } from "../test-utils/application-builder";
-import { getApplicationBuilder } from "../../renderer/components/test-utils/get-application-builder";
+import { setupInitializingApplicationBuilder } from "../test-utils/application-builder";
 import getRandomIdInjectable from "../../common/utils/get-random-id.injectable";
 import type { FakeExtensionOptions } from "../../renderer/components/test-utils/get-extension-fake";
 import { computed } from "mobx";
@@ -13,19 +13,15 @@ import { computed } from "mobx";
 describe("status-bar-items-originating-from-extensions", () => {
   let builder: ApplicationBuilder;
 
-  beforeEach(() => {
+  setupInitializingApplicationBuilder(b => builder = b);
-    builder = getApplicationBuilder();
 
+  beforeEach(() => {
     builder.beforeWindowStart((windowDi) => {
       windowDi.unoverride(getRandomIdInjectable);
       windowDi.permitSideEffects(getRandomIdInjectable);
     });
   });
 
-  afterEach(() => {
-    builder.quit();
-  });
-
   describe("when application starts", () => {
     let rendered: RenderResult;
 

src/features/terminal/opening-terminal-tab.test.tsx

@@ -14,8 +14,8 @@ import createKubeconfigManagerInjectable from "../../main/kubeconfig-manager/cre
 import type { KubeconfigManager } from "../../main/kubeconfig-manager/kubeconfig-manager";
 import type { SpawnPty } from "../../main/shell-session/spawn-pty.injectable";
 import spawnPtyInjectable from "../../main/shell-session/spawn-pty.injectable";
-import type { ApplicationBuilder } from "../../renderer/components/test-utils/get-application-builder";
+import type { ApplicationBuilder } from "../test-utils/application-builder";
-import { getApplicationBuilder } from "../../renderer/components/test-utils/get-application-builder";
+import { setupInitializingApplicationBuilder } from "../test-utils/application-builder";
 import type { FindByTextWithMarkup } from "../../test-utils/findByTextWithMarkup";
 import { findByTextWithMarkupFor } from "../../test-utils/findByTextWithMarkup";
 
@@ -25,6 +25,8 @@ describe("test for opening terminal tab within cluster frame", () => {
   let findByTextWithMarkup: FindByTextWithMarkup;
   let spawnPtyMock: jest.MockedFunction<SpawnPty>;
 
+  setupInitializingApplicationBuilder(b => builder = b);
+
   beforeAll(() => {
     jest.spyOn(window, "requestAnimationFrame").mockImplementation(function IAmAMockRequestAnimationFrame(cb) {
       return window.setTimeout(() => cb(Date.now()));
@@ -32,8 +34,6 @@ describe("test for opening terminal tab within cluster frame", () => {
   });
 
   beforeEach(async () => {
-    builder = getApplicationBuilder();
-
     builder.mainDi.override(createKubeconfigManagerInjectable, () => (cluster) => {
       return {
         getPath: async () => `/some-kubeconfig-managed-path-for-${cluster.id}`,
@@ -50,10 +50,6 @@ describe("test for opening terminal tab within cluster frame", () => {
     findByTextWithMarkup = findByTextWithMarkupFor(result);
   });
 
-  afterEach(() => {
-    builder.quit();
-  });
-
   describe("when new terminal tab is opened", () => {
     beforeEach(() => {
       result.getByTestId("dock-tab-for-terminal").click();

src/features/test-utils/application-builder.tsx

@@ -0,0 +1,941 @@
+/**
+ * Copyright (c) OpenLens Authors. All rights reserved.
+ * Licensed under MIT License. See LICENSE in root directory for more information.
+ */
+import type { LensRendererExtension } from "../../extensions/lens-renderer-extension";
+import rendererExtensionsInjectable from "../../extensions/renderer-extensions.injectable";
+import currentlyInClusterFrameInjectable from "../../renderer/routes/currently-in-cluster-frame.injectable";
+import type { IComputedValue, ObservableMap } from "mobx";
+import { action, computed, observable, runInAction } from "mobx";
+import React from "react";
+import { Router } from "react-router";
+import type { RenderResult } from "@testing-library/react";
+import { fireEvent, queryByText } from "@testing-library/react";
+import type { KubeApiResourceDescriptor } from "../../common/rbac";
+import { apiResourceRecord, formatKubeApiResource } from "../../common/rbac";
+import type { DiContainer, Injectable } from "@ogre-tools/injectable";
+import { getInjectable } from "@ogre-tools/injectable";
+import mainExtensionsInjectable from "../../extensions/main-extensions.injectable";
+import { pipeline } from "@ogre-tools/fp";
+import { filter, first, join, last, map, matches } from "lodash/fp";
+import navigateToPreferencesInjectable from "../preferences/common/navigate-to-preferences.injectable";
+import type { NavigateToHelmCharts } from "../../common/front-end-routing/routes/cluster/helm/charts/navigate-to-helm-charts.injectable";
+import navigateToHelmChartsInjectable from "../../common/front-end-routing/routes/cluster/helm/charts/navigate-to-helm-charts.injectable";
+import type { Cluster } from "../../common/cluster/cluster";
+import startMainApplicationInjectable from "../../main/start-main-application/start-main-application.injectable";
+import startFrameInjectable from "../../renderer/start-frame/start-frame.injectable";
+import type { NamespaceStore } from "../../renderer/components/+namespaces/store";
+import historyInjectable from "../../renderer/navigation/history.injectable";
+import type { MinimalTrayMenuItem } from "../../main/tray/electron-tray/electron-tray.injectable";
+import electronTrayInjectable from "../../main/tray/electron-tray/electron-tray.injectable";
+import { getDiForUnitTesting as getRendererDi } from "../../renderer/getDiForUnitTesting";
+import { getDiForUnitTesting as getMainDi } from "../../main/getDiForUnitTesting";
+import { overrideChannels } from "../../test-utils/channel-fakes/override-channels";
+import assert from "assert";
+import { openMenu } from "react-select-event";
+import userEvent from "@testing-library/user-event";
+import type { Route } from "../../common/front-end-routing/front-end-route-injection-token";
+import type { NavigateToRouteOptions } from "../../common/front-end-routing/navigate-to-route-injection-token";
+import { navigateToRouteInjectionToken } from "../../common/front-end-routing/navigate-to-route-injection-token";
+import type { LensMainExtension } from "../../extensions/lens-main-extension";
+import type { LensExtension } from "../../extensions/lens-extension";
+import extensionInjectable from "../../extensions/extension-loader/extension/extension.injectable";
+import { renderFor } from "../../renderer/components/test-utils/renderFor";
+import { RootFrame } from "../../renderer/frames/root-frame/root-frame";
+import { ClusterFrame } from "../../renderer/frames/cluster-frame/cluster-frame";
+import hostedClusterIdInjectable from "../../renderer/cluster-frame-context/hosted-cluster-id.injectable";
+import namespaceStoreInjectable from "../../renderer/components/+namespaces/store.injectable";
+import createApplicationWindowInjectable from "../../main/start-main-application/lens-window/application-window/create-application-window.injectable";
+import type { CreateElectronWindow } from "../../main/start-main-application/lens-window/application-window/create-electron-window.injectable";
+import createElectronWindowInjectable from "../../main/start-main-application/lens-window/application-window/create-electron-window.injectable";
+import { applicationWindowInjectionToken } from "../../main/start-main-application/lens-window/application-window/application-window-injection-token";
+import closeAllWindowsInjectable from "../../main/start-main-application/lens-window/hide-all-windows/close-all-windows.injectable";
+import type { LensWindow } from "../../main/start-main-application/lens-window/application-window/create-lens-window.injectable";
+import type { FakeExtensionOptions } from "../../renderer/components/test-utils/get-extension-fake";
+import { getExtensionFakeForMain, getExtensionFakeForRenderer } from "../../renderer/components/test-utils/get-extension-fake";
+import namespaceApiInjectable from "../../common/k8s-api/endpoints/namespace.api.injectable";
+import { Namespace } from "../../common/k8s-api/endpoints";
+import { getOverrideFsWithFakes } from "../../test-utils/override-fs-with-fakes";
+import applicationMenuItemCompositeInjectable from "../application-menu/main/application-menu-item-composite.injectable";
+import { getCompositePaths } from "../../common/utils/composite/get-composite-paths/get-composite-paths";
+import { discoverFor } from "../../renderer/components/test-utils/discovery-of-html-elements";
+import { findComposite } from "../../common/utils/composite/find-composite/find-composite";
+import shouldStartHiddenInjectable from "../../main/electron-app/features/should-start-hidden.injectable";
+import fsInjectable from "../../common/fs/fs.injectable";
+import joinPathsInjectable from "../../common/path/join-paths.injectable";
+import homeDirectoryPathInjectable from "../../common/os/home-directory-path.injectable";
+import type { ClusterId } from "../../common/cluster-types";
+import getClusterByIdInjectable from "../../common/cluster-store/get-by-id.injectable";
+import createClusterInjectable from "../../main/create-cluster/create-cluster.injectable";
+import { onLoadOfApplicationInjectionToken } from "../../main/start-main-application/runnable-tokens/on-load-of-application-injection-token";
+import currentLocationInjectable from "../../renderer/api/current-location.injectable";
+import lensProxyPortInjectable from "../../main/lens-proxy/lens-proxy-port.injectable";
+import { beforeQuitOfBackEndInjectionToken } from "../../main/start-main-application/runnable-tokens/before-quit-of-back-end-injection-token";
+import { KubernetesCluster, LensKubernetesClusterStatus } from "../../common/catalog-entities";
+import listNamespacesForInjectable from "../../common/cluster/list-namespaces.injectable";
+import requestApiResourcesInjectable from "../../main/cluster/request-api-resources.injectable";
+import requestNamespaceListPermissionsForInjectable from "../../common/cluster/request-namespace-list-permissions.injectable";
+import { beforeQuitOfFrontEndInjectionToken } from "../../main/start-main-application/runnable-tokens/before-quit-of-front-end-injection-token";
+import { runManySyncFor } from "../../common/runnable/run-many-sync-for";
+import type { MemoryHistory } from "history";
+import { object } from "../../common/utils";
+import catalogEntityRegistryInjectable from "../../renderer/api/catalog/entity/registry.injectable";
+import { testUsingFakeTime } from "../../common/test-utils/use-fake-time";
+
+type Callback = (di: DiContainer) => void | Promise<void>;
+
+type LensWindowWithHelpers = LensWindow & { rendered: RenderResult; di: DiContainer };
+
+const createNamespacesFor = (namespaces: Set<string>): Namespace[] => (
+  Array.from(namespaces, (namespace) => new Namespace({
+    apiVersion: "v1",
+    kind: "Namespace",
+    metadata: {
+      name: namespace,
+      resourceVersion: "1",
+      selfLink: `/api/v1/namespaces/${namespace}`,
+      uid: `namespace-${namespace}`,
+    },
+  }))
+);
+
+export interface ApplicationBuilder {
+  mainDi: DiContainer;
+  setEnvironmentToClusterFrame: () => ApplicationBuilder;
+
+  extensions: {
+    enable: (...extensions: FakeExtensionOptions[]) => void;
+    disable: (...extensions: FakeExtensionOptions[]) => void;
+
+    get: (id: string) => {
+      main: LensMainExtension;
+
+      applicationWindows: Record<string, LensRendererExtension> & {
+        only: LensRendererExtension;
+      };
+    };
+  };
+
+  applicationWindow: {
+    closeAll: () => void;
+    only: LensWindowWithHelpers;
+    get: (id: string) => LensWindowWithHelpers;
+    getAll: () => LensWindowWithHelpers[];
+    create: (id: string) => LensWindowWithHelpers;
+  };
+
+  allowKubeResource: (resourceName: KubeApiResourceDescriptor) => ApplicationBuilder;
+  beforeApplicationStart: (callback: Callback) => ApplicationBuilder;
+  afterApplicationStart: (callback: Callback) => ApplicationBuilder;
+  beforeWindowStart: (callback: Callback) => ApplicationBuilder;
+  afterWindowStart: (callback: Callback) => ApplicationBuilder;
+
+  startHidden: () => Promise<void>;
+  render: () => Promise<RenderResult>;
+  quit: () => void;
+
+  tray: {
+    click: (id: string) => Promise<void>;
+    get: (id: string) => MinimalTrayMenuItem | null;
+    getIconPath: () => string;
+  };
+
+  applicationMenu: {
+    click: (...path: string[]) => void;
+    items: string[][];
+  };
+  preferences: {
+    close: () => void;
+    navigate: () => void;
+    navigateTo: (route: Route<any>, params: Partial<NavigateToRouteOptions<any>>) => void;
+    navigation: {
+      click: (id: string) => void;
+    };
+  };
+  namespaces: {
+    add: (namespace: string) => void;
+    select: (namespace: string) => void;
+  };
+  helmCharts: {
+    navigate: NavigateToHelmCharts;
+  };
+  navigateWith: (token: Injectable<() => void, any, void>) => void;
+  select: {
+    openMenu: (id: string) => { selectOption: (labelText: string) => void };
+    selectOption: (menuId: string, labelText: string) => void;
+    getValue: (menuId: string) => string;
+  };
+}
+
+interface Environment {
+  RootComponent: React.ElementType;
+  onAllowKubeResource: () => void;
+}
+
+export const setupInitializingApplicationBuilder = (init: (builder: ApplicationBuilder) => void): void => {
+  let builder: ApplicationBuilder;
+
+  beforeEach(() => {
+    const mainDi = getMainDi({
+      doGeneralOverrides: true,
+    });
+
+    runInAction(() => {
+      mainDi.register(mainExtensionsStateInjectable);
+    });
+
+    testUsingFakeTime();
+
+    const { overrideForWindow, sendToWindow } = overrideChannels(mainDi);
+
+    const beforeApplicationStartCallbacks: Callback[] = [];
+    const afterApplicationStartCallbacks: Callback[] = [];
+    const beforeWindowStartCallbacks: Callback[] = [];
+    const afterWindowStartCallbacks: Callback[] = [];
+
+    const overrideFsWithFakes = getOverrideFsWithFakes();
+
+    overrideFsWithFakes(mainDi);
+
+    // Set up ~/.kube as existing as a folder
+    {
+      const { ensureDirSync } = mainDi.inject(fsInjectable);
+      const joinPaths = mainDi.inject(joinPathsInjectable);
+      const homeDirectoryPath = mainDi.inject(homeDirectoryPathInjectable);
+
+      ensureDirSync(joinPaths(homeDirectoryPath, ".kube"));
+    }
+
+    let environment = environments.application;
+
+    mainDi.override(mainExtensionsInjectable, (di) => {
+      const mainExtensionsState = di.inject(mainExtensionsStateInjectable);
+
+      return computed(() =>
+        [...mainExtensionsState.values()],
+      );
+    });
+
+    let trayMenuIconPath: string;
+
+    const traySetMenuItemsMock = jest.fn<any, [MinimalTrayMenuItem[]]>();
+
+    mainDi.override(electronTrayInjectable, () => ({
+      start: () => {},
+      stop: () => {},
+      setMenuItems: traySetMenuItemsMock,
+      setIconPath: (path) => {
+        trayMenuIconPath = path;
+      },
+    }));
+
+    const allowedResourcesState = observable.set<string>();
+    const windowHelpers = new Map<string, { di: DiContainer; getRendered: () => RenderResult }>();
+
+    const createElectronWindowFake: CreateElectronWindow = (configuration) => {
+      const windowId = configuration.id;
+
+      const windowDi = getRendererDi({ doGeneralOverrides: true });
+
+      overrideForWindow(windowDi, windowId);
+      overrideFsWithFakes(windowDi);
+
+      runInAction(() => {
+        windowDi.register(rendererExtensionsStateInjectable);
+      });
+
+      windowDi.override(
+        currentlyInClusterFrameInjectable,
+        () => environment === environments.clusterFrame,
+      );
+
+      windowDi.override(rendererExtensionsInjectable, (di) => {
+        const rendererExtensionState = di.inject(rendererExtensionsStateInjectable);
+
+        return computed(() => [...rendererExtensionState.values()]);
+      });
+
+      let rendered: RenderResult;
+
+      windowHelpers.set(windowId, { di: windowDi, getRendered: () => rendered });
+
+      return {
+        show: () => {},
+        close: () => {},
+        loadFile: async () => {},
+        loadUrl: async () => {
+          for (const callback of beforeWindowStartCallbacks) {
+            await callback(windowDi);
+          }
+
+          const startFrame = windowDi.inject(startFrameInjectable);
+
+          await startFrame();
+
+          for (const callback of afterWindowStartCallbacks) {
+            await callback(windowDi);
+          }
+
+          const history = windowDi.inject(historyInjectable);
+          const render = renderFor(windowDi);
+
+          rendered = render((
+            <>
+              <div id="terminal-init" />
+              <Router history={history}>
+                <environment.RootComponent />
+              </Router>
+            </>
+          ));
+        },
+        send: (arg) => {
+          sendToWindow(windowId, arg);
+        },
+        canGoBack: () => {
+          const history = windowDi.inject(historyInjectable) as MemoryHistory;
+
+          return history.canGo(-1);
+        },
+        canGoForward: () => {
+          const history = windowDi.inject(historyInjectable) as MemoryHistory;
+
+          return history.canGo(1);
+        },
+        reload: () => {
+          throw new Error("Tried to reload application window which is not implemented yet.");
+        },
+      };
+    };
+
+    mainDi.override(createElectronWindowInjectable, () => createElectronWindowFake);
+
+    let applicationHasStarted = false;
+
+    const namespaces = observable.set<string>();
+    const namespaceItems = observable.array<Namespace>();
+    const selectedNamespaces = observable.set<string>();
+    const clusters = observable.map<ClusterId, Cluster>();
+    const clusterId = "some-cluster-id";
+    const clusterEntity = new KubernetesCluster({
+      metadata: {
+        labels: {},
+        name: "some-context-name",
+        uid: clusterId,
+      },
+      spec: {
+        kubeconfigContext: "some-context-name",
+        kubeconfigPath: "/some-kube-config-path",
+      },
+      status: {
+        phase: LensKubernetesClusterStatus.DISCONNECTED,
+      },
+    });
+    const startMainApplication = mainDi.inject(startMainApplicationInjectable);
+
+    const startApplication = async ({ shouldStartHidden }: { shouldStartHidden: boolean }) => {
+      for (const callback of beforeApplicationStartCallbacks) {
+        await callback(mainDi);
+      }
+
+      mainDi.override(shouldStartHiddenInjectable, () => shouldStartHidden);
+      await startMainApplication();
+
+      for (const callback of afterApplicationStartCallbacks) {
+        await callback(mainDi);
+      }
+
+      applicationHasStarted = true;
+    };
+
+    mainDi.override(getClusterByIdInjectable, () => (id) => clusters.get(id));
+
+    beforeWindowStartCallbacks.push((windowDi) => {
+      windowDi.override(getClusterByIdInjectable, () => (id) => clusters.get(id));
+      windowDi.override(currentLocationInjectable, () => ({
+        hostname: "localhost",
+        port: `${mainDi.inject(lensProxyPortInjectable).get()}`,
+        protocol: "http",
+      }));
+    });
+
+    afterWindowStartCallbacks.push((windowDi) => {
+      windowDi.inject(catalogEntityRegistryInjectable).updateItems([clusterEntity]);
+    });
+
+    mainDi.override(listNamespacesForInjectable, () => () => async () => [...namespaces]);
+    mainDi.override(requestApiResourcesInjectable, () => async () => (
+      object.entries(apiResourceRecord)
+        .map(([apiName, data]) => ({ apiName, ...data }))
+    ));
+    mainDi.override(requestNamespaceListPermissionsForInjectable, () => () => async () => (resource) => allowedResourcesState.has(formatKubeApiResource(resource)));
+
+
+    runInAction(() => {
+      mainDi.register(getInjectable({
+        id: "create-fake-cluster",
+        instantiate: (di) => ({
+          id: "create-fake-cluster",
+          run: () => {
+            const createCluster = di.inject(createClusterInjectable);
+            const cluster = createCluster({
+              contextName: "some-context-name",
+              id: clusterId,
+              kubeConfigPath: "/some-kube-config-path",
+            }, {
+              clusterServerUrl: "https://some-url.com:8797",
+            });
+
+            clusters.set(clusterId, cluster);
+          },
+        }),
+        injectionToken: onLoadOfApplicationInjectionToken,
+      }));
+    });
+
+    builder = {
+      mainDi,
+      applicationWindow: {
+        closeAll: () => {
+          const closeAll = mainDi.inject(closeAllWindowsInjectable);
+
+          closeAll();
+
+          document.documentElement.innerHTML = "";
+        },
+
+        get only() {
+          const applicationWindows = builder.applicationWindow.getAll();
+
+          if (applicationWindows.length > 1) {
+            throw new Error(
+              "Tried to get only application window when there are multiple windows.",
+            );
+          }
+
+          const applicationWindow = first(applicationWindows);
+
+          if (!applicationWindow) {
+            throw new Error(
+              "Tried to get only application window when there are no windows.",
+            );
+          }
+
+          return applicationWindow;
+        },
+
+        getAll: () =>
+          mainDi
+            .injectMany(applicationWindowInjectionToken)
+            .map(toWindowWithHelpersFor(windowHelpers)),
+
+        get: (id) => {
+          const applicationWindow = builder.applicationWindow
+            .getAll()
+            .find((window) => window.id === id);
+
+          if (!applicationWindow) {
+            throw new Error(`Tried to get application window with ID "${id}" but it was not found.`);
+          }
+
+          return applicationWindow;
+        },
+
+        create: (id) => {
+          const createApplicationWindow = mainDi.inject(createApplicationWindowInjectable);
+
+          createApplicationWindow(id);
+
+          return builder.applicationWindow.get(id);
+        },
+      },
+      namespaces: {
+        add: action((namespace) => {
+          namespaces.add(namespace);
+          namespaceItems.replace(createNamespacesFor(namespaces));
+        }),
+        select: action((namespace) => selectedNamespaces.add(namespace)),
+      },
+      applicationMenu: {
+        get items() {
+          const composite = mainDi.inject(
+            applicationMenuItemCompositeInjectable,
+          ).get();
+
+          return getCompositePaths(composite);
+        },
+
+        click: (...path: string[]) => {
+          const composite = mainDi.inject(
+            applicationMenuItemCompositeInjectable,
+          ).get();
+
+          const clickableMenuItem = findComposite(...path)(composite).value;
+
+          if(clickableMenuItem.kind === "clickable-menu-item") {
+            // Todo: prevent leaking of Electron
+            (clickableMenuItem.onClick as any)();
+          } else {
+            throw new Error(`Tried to trigger clicking of an application menu item, but item at path '${path.join(" -> ")}' isn't clickable.`);
+          }
+        },
+      },
+
+      tray: {
+        get: (id: string) => {
+          const lastCall = last(traySetMenuItemsMock.mock.calls);
+
+          assert(lastCall);
+
+          return lastCall[0].find(matches({ id })) ?? null;
+        },
+
+        getIconPath: () => trayMenuIconPath,
+
+        click: async (id: string) => {
+          const lastCall = last(traySetMenuItemsMock.mock.calls);
+
+          assert(lastCall);
+
+          const trayMenuItems = lastCall[0];
+
+          const menuItem = trayMenuItems.find(matches({ id })) ?? null;
+
+          if (!menuItem) {
+            const availableIds = pipeline(
+              trayMenuItems,
+              filter(item => !!item.click),
+              map(item => item.id),
+              join(", "),
+            );
+
+            throw new Error(`Tried to click tray menu item with ID ${id} which does not exist. Available IDs are: "${availableIds}"`);
+          }
+
+          if (!menuItem.enabled) {
+            throw new Error(`Tried to click tray menu item with ID ${id} which is disabled.`);
+          }
+
+          await menuItem.click?.();
+        },
+      },
+
+      preferences: {
+        close: () => {
+          const rendered = builder.applicationWindow.only.rendered;
+
+          const link = rendered.getByTestId("close-preferences");
+
+          fireEvent.click(link);
+        },
+
+        navigate: () => {
+          const windowDi = builder.applicationWindow.only.di;
+
+          const navigateToPreferences = windowDi.inject(
+            navigateToPreferencesInjectable,
+          );
+
+          navigateToPreferences();
+        },
+
+        navigateTo: (route: Route<any>, params: Partial<NavigateToRouteOptions<any>>) => {
+          const windowDi = builder.applicationWindow.only.di;
+
+          const navigateToRoute = windowDi.inject(navigateToRouteInjectionToken);
+
+          navigateToRoute(route, params);
+        },
+
+        navigation: {
+          click: (pathId: string) => {
+            const { rendered } = builder.applicationWindow.only;
+
+            const discover = discoverFor(() => rendered);
+
+            const { discovered: link } = discover.getSingleElement(
+              "preference-tab-link",
+              pathId,
+            );
+
+            fireEvent.click(link);
+          },
+        },
+      },
+
+      helmCharts: {
+        navigate: (parameters) => {
+          const windowDi = builder.applicationWindow.only.di;
+
+          const navigateToHelmCharts = windowDi.inject(
+            navigateToHelmChartsInjectable,
+          );
+
+          navigateToHelmCharts(parameters);
+        },
+      },
+
+      navigateWith: (token) => {
+        const windowDi = builder.applicationWindow.only.di;
+        const navigate = windowDi.inject(token);
+
+        navigate();
+      },
+
+      setEnvironmentToClusterFrame: () => {
+        environment = environments.clusterFrame;
+
+        builder.beforeWindowStart((windowDi) => {
+          windowDi.override(hostedClusterIdInjectable, () => clusterId);
+
+          // TODO: Figure out a way to remove this stub.
+          windowDi.override(namespaceStoreInjectable, () => ({
+            isLoaded: true,
+            get contextNamespaces() {
+              return Array.from(selectedNamespaces);
+            },
+            get allowedNamespaces() {
+              return Array.from(namespaces);
+            },
+            contextItems: namespaceItems,
+            api: windowDi.inject(namespaceApiInjectable),
+            items: namespaceItems,
+            selectNamespaces: () => {},
+            selectSingle: () => {},
+            getByPath: () => undefined,
+            pickOnlySelected: () => [],
+            isSelectedAll: () => false,
+            getTotalCount: () => namespaceItems.length,
+          } as Partial<NamespaceStore> as NamespaceStore));
+        });
+
+        builder.afterWindowStart(windowDi => {
+          windowDi.inject(catalogEntityRegistryInjectable).activeEntity = clusterEntity;
+        });
+
+        return builder;
+      },
+
+      extensions: {
+        get: (id: string) => {
+          const windowInstances = pipeline(
+            builder.applicationWindow.getAll(),
+
+            map((window): [string, LensRendererExtension] => [
+              window.id,
+              findExtensionInstance(window.di, rendererExtensionsInjectable, id),
+            ]),
+
+            items => Object.fromEntries(items),
+          );
+
+          return {
+            main: findExtensionInstance(mainDi, mainExtensionsInjectable, id),
+
+            applicationWindows: {
+              get only() {
+                return findExtensionInstance(
+                  builder.applicationWindow.only.di,
+                  rendererExtensionsInjectable,
+                  id,
+                );
+              },
+
+              ...windowInstances,
+            },
+          };
+        },
+
+        enable: (...extensions) => {
+          builder.afterWindowStart((windowDi) => {
+            const enabledExtension = enableExtensionFor(windowDi, rendererExtensionsStateInjectable);
+
+            runInAction(() => {
+              for (const extension of extensions) {
+                enabledExtension(getExtensionFakeForRenderer(
+                  windowDi,
+                  extension.id,
+                  extension.name,
+                  extension.rendererOptions ?? {},
+                ));
+              }
+            });
+          });
+
+          builder.afterApplicationStart((mainDi) => {
+            const enabledExtension = enableExtensionFor(mainDi, mainExtensionsStateInjectable);
+
+            runInAction(() => {
+              for (const extension of extensions) {
+                enabledExtension(getExtensionFakeForMain(
+                  mainDi,
+                  extension.id,
+                  extension.name,
+                  extension.mainOptions ?? {},
+                ));
+              }
+            });
+          });
+        },
+
+        disable: (...extensions) => {
+          builder.afterWindowStart(windowDi => {
+            extensions
+              .map((ext) => ext.id)
+              .forEach(
+                disableExtensionFor(windowDi, rendererExtensionsStateInjectable),
+              );
+          });
+
+          builder.afterApplicationStart(mainDi => {
+            extensions
+              .map((ext) => ext.id)
+              .forEach(
+                disableExtensionFor(mainDi, mainExtensionsStateInjectable),
+              );
+          });
+        },
+      },
+
+      allowKubeResource: (resource) => {
+        environment.onAllowKubeResource();
+
+        runInAction(() => {
+          allowedResourcesState.add(formatKubeApiResource(resource));
+        });
+
+        return builder;
+      },
+
+      beforeApplicationStart(callback) {
+        if (applicationHasStarted) {
+          callback(mainDi);
+        }
+
+        beforeApplicationStartCallbacks.push(callback);
+
+        return builder;
+      },
+
+      afterApplicationStart(callback) {
+        if (applicationHasStarted) {
+          callback(mainDi);
+        }
+
+        afterApplicationStartCallbacks.push(callback);
+
+        return builder;
+      },
+
+      beforeWindowStart(callback) {
+        const alreadyRenderedWindows = builder.applicationWindow.getAll();
+
+        alreadyRenderedWindows.forEach((window) => {
+          callback(window.di);
+        });
+
+        beforeWindowStartCallbacks.push(callback);
+
+        return builder;
+      },
+
+      afterWindowStart(callback) {
+        const alreadyRenderedWindows = builder.applicationWindow.getAll();
+
+        alreadyRenderedWindows.forEach((window) => {
+          callback(window.di);
+        });
+
+        afterWindowStartCallbacks.push(callback);
+
+        return builder;
+      },
+
+      startHidden: async () => {
+        await startApplication({ shouldStartHidden: true });
+      },
+
+      quit() {
+        const runManySync = runManySyncFor(builder.mainDi);
+        const beforeQuitOfFrontEnd = runManySync(beforeQuitOfFrontEndInjectionToken);
+        const beforeQuitOfBackEnd = runManySync(beforeQuitOfBackEndInjectionToken);
+
+        beforeQuitOfFrontEnd();
+        beforeQuitOfBackEnd();
+      },
+
+      async render() {
+        await startApplication({ shouldStartHidden: false });
+
+        return builder
+          .applicationWindow
+          .get("first-application-window")
+          .rendered;
+      },
+
+      select: {
+        openMenu: (menuId) => {
+          const rendered = builder.applicationWindow.only.rendered;
+
+          const select = rendered.baseElement.querySelector<HTMLElement>(
+            `#${menuId}`,
+          );
+
+          assert(select, `Could not find select with ID "${menuId}"`);
+
+          openMenu(select);
+
+          return {
+            selectOption: selectOptionFor(builder, menuId),
+          };
+        },
+
+        selectOption: (menuId, labelText) => selectOptionFor(builder, menuId)(labelText),
+
+        getValue: (menuId) => {
+          const rendered = builder.applicationWindow.only.rendered;
+
+          const select = rendered.baseElement.querySelector<HTMLInputElement>(
+            `#${menuId}`,
+          );
+
+          assert(select, `Could not find select with ID "${menuId}"`);
+
+          const controlElement = select.closest(".Select__control");
+
+          assert(controlElement, `Could not find select value for menu with ID "${menuId}"`);
+
+          return controlElement.textContent || "";
+        },
+      },
+    };
+
+    init(builder);
+  });
+
+  afterEach(() => {
+    builder.quit();
+  });
+};
+
+export const rendererExtensionsStateInjectable = getInjectable({
+  id: "renderer-extensions-state",
+  instantiate: () => observable.map<string, LensRendererExtension>(),
+});
+
+const mainExtensionsStateInjectable = getInjectable({
+  id: "main-extensions-state",
+  instantiate: () => observable.map<string, LensMainExtension>(),
+});
+
+const findExtensionInstance = <T extends LensExtension> (di: DiContainer, injectable: Injectable<IComputedValue<T[]>, any, any>, id: string) => {
+  const instance = di.inject(injectable).get().find(ext => ext.id === id);
+
+  if (!instance) {
+    throw new Error(`Tried to get extension with ID ${id}, but it didn't exist`);
+  }
+
+  return instance;
+};
+
+type ApplicationWindowHelpers = Map<string, { di: DiContainer; getRendered: () => RenderResult }>;
+
+const toWindowWithHelpersFor =
+  (windowHelpers: ApplicationWindowHelpers) => (applicationWindow: LensWindow) => ({
+    ...applicationWindow,
+
+    get rendered() {
+      const helpers = windowHelpers.get(applicationWindow.id);
+
+      if (!helpers) {
+        throw new Error(
+          `Tried to get rendered for application window "${applicationWindow.id}" before it was started.`,
+        );
+      }
+
+      return helpers.getRendered();
+    },
+
+    get di() {
+      const helpers = windowHelpers.get(applicationWindow.id);
+
+      if (!helpers) {
+        throw new Error(
+          `Tried to get di for application window "${applicationWindow.id}" before it was started.`,
+        );
+      }
+
+      return helpers.di;
+    },
+  });
+
+const environments = {
+  application: {
+    RootComponent: RootFrame,
+
+    onAllowKubeResource: () => {
+      throw new Error(
+        "Tried to allow kube resource when environment is not cluster frame.",
+      );
+    },
+  } as Environment,
+
+  clusterFrame: {
+    RootComponent: ClusterFrame,
+    onAllowKubeResource: () => {},
+  } as Environment,
+};
+
+const selectOptionFor = (builder: ApplicationBuilder, menuId: string) => (labelText: string) => {
+  const rendered = builder.applicationWindow.only.rendered;
+
+  const menuOptions = rendered.baseElement.querySelector<HTMLElement>(
+    `.${menuId}-options`,
+  );
+
+  assert(menuOptions, `Could not find select options for menu with ID "${menuId}"`);
+
+  const option = queryByText(menuOptions, labelText);
+
+  assert(option, `Could not find select option with label "${labelText}" for menu with ID "${menuId}"`);
+
+  userEvent.click(option);
+};
+
+const enableExtensionFor = (
+  di: DiContainer,
+  stateInjectable: Injectable<ObservableMap<string, any>, any, any>,
+) => {
+  const extensionState = di.inject(stateInjectable);
+
+  return (extensionInstance: LensExtension) => {
+    const extension = di.inject(extensionInjectable, extensionInstance);
+
+    runInAction(() => {
+      extension.register();
+      extensionState.set(extensionInstance.id, extensionInstance);
+    });
+  };
+};
+
+const disableExtensionFor =
+  (
+    di: DiContainer,
+    stateInjectable: Injectable<ObservableMap<string, any>, unknown, void>,
+  ) =>
+    (id: string) => {
+      const extensionsState = di.inject(stateInjectable);
+      const instance = extensionsState.get(id);
+
+      if (!instance) {
+        throw new Error(
+          `Tried to disable extension with ID "${id}", but it wasn't enabled`,
+        );
+      }
+
+      const extension = di.inject(extensionInjectable, instance);
+
+      runInAction(() => {
+        extension.deregister();
+        extensionsState.delete(id);
+      });
+    };

src/features/top-bar/extension-api/extendability-using-extension-api.test.tsx

@@ -5,18 +5,18 @@
 import React from "react";
 import type { RenderResult } from "@testing-library/react";
 
-import type { ApplicationBuilder } from "../../../renderer/components/test-utils/get-application-builder";
+import type { ApplicationBuilder } from "../../test-utils/application-builder";
-import { getApplicationBuilder } from "../../../renderer/components/test-utils/get-application-builder";
+import { setupInitializingApplicationBuilder } from "../../test-utils/application-builder";
 import type { FakeExtensionOptions } from "../../../renderer/components/test-utils/get-extension-fake";
 
 describe("extendability-using-extension-api", () => {
   let rendered: RenderResult;
-  let applicationBuilder: ApplicationBuilder;
+  let builder: ApplicationBuilder;
+
+  setupInitializingApplicationBuilder(b => builder = b);
 
   beforeEach(async () => {
-    applicationBuilder = getApplicationBuilder();
+    rendered = await builder.render();
-
-    rendered = await applicationBuilder.render();
   });
 
   it("renders", () => {
@@ -48,7 +48,7 @@ describe("extendability-using-extension-api", () => {
         },
       };
 
-      applicationBuilder.extensions.enable(testExtension);
+      builder.extensions.enable(testExtension);
     });
 
     it("renders", () => {
@@ -61,7 +61,7 @@ describe("extendability-using-extension-api", () => {
 
     describe("when the extension is disabled", () => {
       beforeEach(() => {
-        applicationBuilder.extensions.disable(testExtension);
+        builder.extensions.disable(testExtension);
       });
 
       it("renders", () => {
@@ -98,7 +98,7 @@ describe("extendability-using-extension-api", () => {
         },
       };
 
-      applicationBuilder.extensions.enable(testExtension);
+      builder.extensions.enable(testExtension);
     });
 
     it("renders without blowing up", () => {

src/features/tray/clicking-tray-menu-item-originating-from-extension.test.ts

@@ -2,8 +2,8 @@
  * Copyright (c) OpenLens Authors. All rights reserved.
  * Licensed under MIT License. See LICENSE in root directory for more information.
  */
-import type { ApplicationBuilder } from "../../renderer/components/test-utils/get-application-builder";
+import type { ApplicationBuilder } from "../test-utils/application-builder";
-import { getApplicationBuilder } from "../../renderer/components/test-utils/get-application-builder";
+import { setupInitializingApplicationBuilder } from "../test-utils/application-builder";
 import type { FakeExtensionOptions } from "../../renderer/components/test-utils/get-extension-fake";
 import getRandomIdInjectable from "../../common/utils/get-random-id.injectable";
 import logErrorInjectable from "../../common/log-error.injectable";
@@ -12,9 +12,9 @@ describe("clicking tray menu item originating from extension", () => {
   let builder: ApplicationBuilder;
   let logErrorMock: jest.Mock;
 
-  beforeEach(async () => {
+  setupInitializingApplicationBuilder(b => builder = b);
-    builder = getApplicationBuilder();
 
+  beforeEach(async () => {
     builder.beforeApplicationStart((mainDi) => {
       logErrorMock = jest.fn();
 
@@ -25,10 +25,6 @@ describe("clicking tray menu item originating from extension", () => {
     await builder.render();
   });
 
-  afterEach(() => {
-    builder.quit();
-  });
-
   describe("when extension is enabled", () => {
     let someExtension: FakeExtensionOptions;
     let clickMock: jest.Mock;

src/features/tray/extension-adding-tray-items.test.tsx

@@ -5,19 +5,20 @@
 import type { IObservableArray, IObservableValue } from "mobx";
 import { computed, runInAction, observable } from "mobx";
 import type { TrayMenuRegistration } from "../../main/tray/tray-menu-registration";
-import type { ApplicationBuilder } from "../../renderer/components/test-utils/get-application-builder";
+import type { ApplicationBuilder } from "../test-utils/application-builder";
-import { getApplicationBuilder } from "../../renderer/components/test-utils/get-application-builder";
+import { setupInitializingApplicationBuilder } from "../test-utils/application-builder";
 
 describe("preferences: extension adding tray items", () => {
+  let builder: ApplicationBuilder;
+
+  setupInitializingApplicationBuilder(b => builder = b);
+
   describe("when extension with tray items are statically defined", () => {
-    let builder: ApplicationBuilder;
     let someObservableForVisibility: IObservableValue<boolean>;
     let someObservableForEnabled: IObservableValue<boolean>;
     let someObservableLabel: IObservableValue<string>;
 
     beforeEach(async () => {
-      builder = getApplicationBuilder();
-
       await builder.render();
 
       builder.preferences.navigate();
@@ -85,10 +86,6 @@ describe("preferences: extension adding tray items", () => {
       builder.extensions.enable(testExtension);
     });
 
-    afterEach(() => {
-      builder.quit();
-    });
-
     describe("given controlled label", () => {
       it("has the label", () => {
         const item = builder.tray.get(
@@ -197,12 +194,9 @@ describe("preferences: extension adding tray items", () => {
   });
 
   describe("when extension with tray items are dynamically defined", () => {
-    let builder: ApplicationBuilder;
     let menuItems: IObservableArray<TrayMenuRegistration>;
 
     beforeEach(async () => {
-      builder = getApplicationBuilder();
-
       await builder.render();
 
       builder.preferences.navigate();

src/features/tray/multiple-separators-originating-from-extension.test.ts

@@ -2,16 +2,16 @@
  * Copyright (c) OpenLens Authors. All rights reserved.
  * Licensed under MIT License. See LICENSE in root directory for more information.
  */
-import type { ApplicationBuilder } from "../../renderer/components/test-utils/get-application-builder";
+import type { ApplicationBuilder } from "../test-utils/application-builder";
-import { getApplicationBuilder } from "../../renderer/components/test-utils/get-application-builder";
+import { setupInitializingApplicationBuilder } from "../test-utils/application-builder";
 import getRandomIdInjectable from "../../common/utils/get-random-id.injectable";
 
 describe("multiple separators originating from extension", () => {
   let builder: ApplicationBuilder;
 
-  beforeEach(async () => {
+  setupInitializingApplicationBuilder(b => builder = b);
-    builder = getApplicationBuilder();
 
+  beforeEach(async () => {
     builder.beforeApplicationStart((mainDi) => {
       mainDi.unoverride(getRandomIdInjectable);
       mainDi.permitSideEffects(getRandomIdInjectable);
@@ -20,10 +20,6 @@ describe("multiple separators originating from extension", () => {
     await builder.render();
   });
 
-  afterEach(() => {
-    builder.quit();
-  });
-
   it("given extension with multiple separators, when extension is enabled, does not throw", () => {
     const someExtension = {
       id: "some-extension-id",

src/features/welcome/navigation-using-application-menu.test.ts

@@ -4,23 +4,19 @@
  */
 
 import type { RenderResult } from "@testing-library/react";
-import type { ApplicationBuilder } from "../../renderer/components/test-utils/get-application-builder";
+import type { ApplicationBuilder } from "../test-utils/application-builder";
-import { getApplicationBuilder } from "../../renderer/components/test-utils/get-application-builder";
+import { setupInitializingApplicationBuilder } from "../test-utils/application-builder";
 
 describe("welcome - navigation using application menu", () => {
   let builder: ApplicationBuilder;
   let rendered: RenderResult;
 
+  setupInitializingApplicationBuilder(b => builder = b);
+
   beforeEach(async () => {
-    builder = getApplicationBuilder();
-
     rendered = await builder.render();
   });
 
-  afterEach(() => {
-    builder.quit();
-  });
-
   it("renders", () => {
     expect(rendered.container).toMatchSnapshot();
   });

src/features/welcome/setting-welcome-page.test.tsx

@@ -5,8 +5,8 @@
 
 import type { RenderResult } from "@testing-library/react";
 import React from "react";
-import type { ApplicationBuilder } from "../../renderer/components/test-utils/get-application-builder";
+import type { ApplicationBuilder } from "../test-utils/application-builder";
-import { getApplicationBuilder } from "../../renderer/components/test-utils/get-application-builder";
+import { setupInitializingApplicationBuilder } from "../test-utils/application-builder";
 import type { FakeExtensionOptions } from "../../renderer/components/test-utils/get-extension-fake";
 import welcomeRouteConfigInjectable from "../../common/front-end-routing/routes/welcome/welcome-route-config.injectable";
 import welcomeRouteInjectable from "../../common/front-end-routing/routes/welcome/welcome-route.injectable";
@@ -18,13 +18,7 @@ describe("setting-welcome-page", () => {
   let rendered : RenderResult;
   let welcomeRoute: Route;
 
-  beforeEach(() => {
+  setupInitializingApplicationBuilder(b => builder = b);
-    builder = getApplicationBuilder();
-  });
-
-  afterEach(() => {
-    builder.quit();
-  });
 
   describe("given configuration of welcome page route is the default", () => {
     beforeEach(async () => {

src/renderer/components/status-bar/status-bar.test.tsx

@@ -10,19 +10,19 @@ import { computed, observable } from "mobx";
 import type { StatusBarItems } from "./status-bar-items.injectable";
 import statusBarItemsInjectable from "./status-bar-items.injectable";
 import directoryForUserDataInjectable from "../../../common/app-paths/directory-for-user-data/directory-for-user-data.injectable";
-import type { ApplicationBuilder } from "../test-utils/get-application-builder";
+import type { ApplicationBuilder } from "../../../features/test-utils/application-builder";
-import { getApplicationBuilder } from "../test-utils/get-application-builder";
+import { setupInitializingApplicationBuilder } from "../../../features/test-utils/application-builder";
 import getRandomIdInjectable from "../../../common/utils/get-random-id.injectable";
 
 describe("<StatusBar />", () => {
   let statusBarItems: IObservableArray<any>;
   let builder: ApplicationBuilder;
 
+  setupInitializingApplicationBuilder(b => builder = b);
+
   beforeEach(async () => {
     statusBarItems = observable.array([]);
 
-    builder = getApplicationBuilder();
-
     builder.beforeWindowStart((windowDi) => {
       windowDi.unoverride(getRandomIdInjectable);
       windowDi.permitSideEffects(getRandomIdInjectable);
@@ -39,10 +39,6 @@ describe("<StatusBar />", () => {
     });
   });
 
-  afterEach(() => {
-    builder.quit();
-  });
-
   it("renders w/o errors", async () => {
     const { container } = await builder.render();
 

src/renderer/components/test-utils/get-application-builder.tsx

@@ -1,932 +0,0 @@
-/**
- * Copyright (c) OpenLens Authors. All rights reserved.
- * Licensed under MIT License. See LICENSE in root directory for more information.
- */
-import type { LensRendererExtension } from "../../../extensions/lens-renderer-extension";
-import rendererExtensionsInjectable from "../../../extensions/renderer-extensions.injectable";
-import currentlyInClusterFrameInjectable from "../../routes/currently-in-cluster-frame.injectable";
-import type { IComputedValue, ObservableMap } from "mobx";
-import { action, computed, observable, runInAction } from "mobx";
-import React from "react";
-import { Router } from "react-router";
-import type { RenderResult } from "@testing-library/react";
-import { fireEvent, queryByText } from "@testing-library/react";
-import type { KubeApiResourceDescriptor } from "../../../common/rbac";
-import { apiResourceRecord, formatKubeApiResource } from "../../../common/rbac";
-import type { DiContainer, Injectable } from "@ogre-tools/injectable";
-import { getInjectable } from "@ogre-tools/injectable";
-import mainExtensionsInjectable from "../../../extensions/main-extensions.injectable";
-import { pipeline } from "@ogre-tools/fp";
-import { filter, first, join, last, map, matches } from "lodash/fp";
-import navigateToPreferencesInjectable from "../../../features/preferences/common/navigate-to-preferences.injectable";
-import type { NavigateToHelmCharts } from "../../../common/front-end-routing/routes/cluster/helm/charts/navigate-to-helm-charts.injectable";
-import navigateToHelmChartsInjectable from "../../../common/front-end-routing/routes/cluster/helm/charts/navigate-to-helm-charts.injectable";
-import type { Cluster } from "../../../common/cluster/cluster";
-import startMainApplicationInjectable from "../../../main/start-main-application/start-main-application.injectable";
-import startFrameInjectable from "../../start-frame/start-frame.injectable";
-import type { NamespaceStore } from "../+namespaces/store";
-import historyInjectable from "../../navigation/history.injectable";
-import type { MinimalTrayMenuItem } from "../../../main/tray/electron-tray/electron-tray.injectable";
-import electronTrayInjectable from "../../../main/tray/electron-tray/electron-tray.injectable";
-import { getDiForUnitTesting as getRendererDi } from "../../getDiForUnitTesting";
-import { getDiForUnitTesting as getMainDi } from "../../../main/getDiForUnitTesting";
-import { overrideChannels } from "../../../test-utils/channel-fakes/override-channels";
-import assert from "assert";
-import { openMenu } from "react-select-event";
-import userEvent from "@testing-library/user-event";
-import type { Route } from "../../../common/front-end-routing/front-end-route-injection-token";
-import type { NavigateToRouteOptions } from "../../../common/front-end-routing/navigate-to-route-injection-token";
-import { navigateToRouteInjectionToken } from "../../../common/front-end-routing/navigate-to-route-injection-token";
-import type { LensMainExtension } from "../../../extensions/lens-main-extension";
-import type { LensExtension } from "../../../extensions/lens-extension";
-import extensionInjectable from "../../../extensions/extension-loader/extension/extension.injectable";
-import { renderFor } from "./renderFor";
-import { RootFrame } from "../../frames/root-frame/root-frame";
-import { ClusterFrame } from "../../frames/cluster-frame/cluster-frame";
-import hostedClusterIdInjectable from "../../cluster-frame-context/hosted-cluster-id.injectable";
-import namespaceStoreInjectable from "../+namespaces/store.injectable";
-import createApplicationWindowInjectable from "../../../main/start-main-application/lens-window/application-window/create-application-window.injectable";
-import type { CreateElectronWindow } from "../../../main/start-main-application/lens-window/application-window/create-electron-window.injectable";
-import createElectronWindowInjectable from "../../../main/start-main-application/lens-window/application-window/create-electron-window.injectable";
-import { applicationWindowInjectionToken } from "../../../main/start-main-application/lens-window/application-window/application-window-injection-token";
-import closeAllWindowsInjectable from "../../../main/start-main-application/lens-window/hide-all-windows/close-all-windows.injectable";
-import type { LensWindow } from "../../../main/start-main-application/lens-window/application-window/create-lens-window.injectable";
-import type { FakeExtensionOptions } from "./get-extension-fake";
-import { getExtensionFakeForMain, getExtensionFakeForRenderer } from "./get-extension-fake";
-import namespaceApiInjectable from "../../../common/k8s-api/endpoints/namespace.api.injectable";
-import { Namespace } from "../../../common/k8s-api/endpoints";
-import { getOverrideFsWithFakes } from "../../../test-utils/override-fs-with-fakes";
-import applicationMenuItemCompositeInjectable from "../../../features/application-menu/main/application-menu-item-composite.injectable";
-import { getCompositePaths } from "../../../common/utils/composite/get-composite-paths/get-composite-paths";
-import { discoverFor } from "./discovery-of-html-elements";
-import { findComposite } from "../../../common/utils/composite/find-composite/find-composite";
-import shouldStartHiddenInjectable from "../../../main/electron-app/features/should-start-hidden.injectable";
-import fsInjectable from "../../../common/fs/fs.injectable";
-import joinPathsInjectable from "../../../common/path/join-paths.injectable";
-import homeDirectoryPathInjectable from "../../../common/os/home-directory-path.injectable";
-import { testUsingFakeTime } from "../../../common/test-utils/use-fake-time";
-import type { ClusterId } from "../../../common/cluster-types";
-import getClusterByIdInjectable from "../../../common/cluster-store/get-by-id.injectable";
-import createClusterInjectable from "../../../main/create-cluster/create-cluster.injectable";
-import { onLoadOfApplicationInjectionToken } from "../../../main/start-main-application/runnable-tokens/on-load-of-application-injection-token";
-import currentLocationInjectable from "../../api/current-location.injectable";
-import lensProxyPortInjectable from "../../../main/lens-proxy/lens-proxy-port.injectable";
-import { beforeQuitOfBackEndInjectionToken } from "../../../main/start-main-application/runnable-tokens/before-quit-of-back-end-injection-token";
-import catalogEntityRegistryInjectable from "../../api/catalog/entity/registry.injectable";
-import { KubernetesCluster, LensKubernetesClusterStatus } from "../../../common/catalog-entities";
-import listNamespacesForInjectable from "../../../common/cluster/list-namespaces.injectable";
-import requestApiResourcesInjectable from "../../../common/cluster/request-api-resources.injectable";
-import { object } from "../../utils";
-import requestNamespaceListPermissionsForInjectable from "../../../common/cluster/request-namespace-list-permissions.injectable";
-import { beforeQuitOfFrontEndInjectionToken } from "../../../main/start-main-application/runnable-tokens/before-quit-of-front-end-injection-token";
-import { runManySyncFor } from "../../../common/runnable/run-many-sync-for";
-import type { MemoryHistory } from "history";
-
-type Callback = (di: DiContainer) => void | Promise<void>;
-
-type LensWindowWithHelpers = LensWindow & { rendered: RenderResult; di: DiContainer };
-
-const createNamespacesFor = (namespaces: Set<string>): Namespace[] => (
-  Array.from(namespaces, (namespace) => new Namespace({
-    apiVersion: "v1",
-    kind: "Namespace",
-    metadata: {
-      name: namespace,
-      resourceVersion: "1",
-      selfLink: `/api/v1/namespaces/${namespace}`,
-      uid: `namespace-${namespace}`,
-    },
-  }))
-);
-
-export interface ApplicationBuilder {
-  mainDi: DiContainer;
-  setEnvironmentToClusterFrame: () => ApplicationBuilder;
-
-  extensions: {
-    enable: (...extensions: FakeExtensionOptions[]) => void;
-    disable: (...extensions: FakeExtensionOptions[]) => void;
-
-    get: (id: string) => {
-      main: LensMainExtension;
-
-      applicationWindows: Record<string, LensRendererExtension> & {
-        only: LensRendererExtension;
-      };
-    };
-  };
-
-  applicationWindow: {
-    closeAll: () => void;
-    only: LensWindowWithHelpers;
-    get: (id: string) => LensWindowWithHelpers;
-    getAll: () => LensWindowWithHelpers[];
-    create: (id: string) => LensWindowWithHelpers;
-  };
-
-  allowKubeResource: (resource: KubeApiResourceDescriptor) => ApplicationBuilder;
-  beforeApplicationStart: (callback: Callback) => ApplicationBuilder;
-  afterApplicationStart: (callback: Callback) => ApplicationBuilder;
-  beforeWindowStart: (callback: Callback) => ApplicationBuilder;
-  afterWindowStart: (callback: Callback) => ApplicationBuilder;
-
-  startHidden: () => Promise<void>;
-  render: () => Promise<RenderResult>;
-  quit: () => void;
-
-  tray: {
-    click: (id: string) => Promise<void>;
-    get: (id: string) => MinimalTrayMenuItem | null;
-    getIconPath: () => string;
-  };
-
-  applicationMenu: {
-    click: (...path: string[]) => void;
-    items: string[][];
-  };
-  preferences: {
-    close: () => void;
-    navigate: () => void;
-    navigateTo: (route: Route<any>, params: Partial<NavigateToRouteOptions<any>>) => void;
-    navigation: {
-      click: (id: string) => void;
-    };
-  };
-  namespaces: {
-    add: (namespace: string) => void;
-    select: (namespace: string) => void;
-  };
-  helmCharts: {
-    navigate: NavigateToHelmCharts;
-  };
-  navigateWith: (token: Injectable<() => void, any, void>) => void;
-  select: {
-    openMenu: (id: string) => { selectOption: (labelText: string) => void };
-    selectOption: (menuId: string, labelText: string) => void;
-    getValue: (menuId: string) => string;
-  };
-}
-
-interface Environment {
-  RootComponent: React.ElementType;
-  onAllowKubeResource: () => void;
-}
-
-export const getApplicationBuilder = () => {
-  const mainDi = getMainDi({
-    doGeneralOverrides: true,
-  });
-
-  runInAction(() => {
-    mainDi.register(mainExtensionsStateInjectable);
-  });
-
-  testUsingFakeTime();
-
-  const { overrideForWindow, sendToWindow } = overrideChannels(mainDi);
-
-  const beforeApplicationStartCallbacks: Callback[] = [];
-  const afterApplicationStartCallbacks: Callback[] = [];
-  const beforeWindowStartCallbacks: Callback[] = [];
-  const afterWindowStartCallbacks: Callback[] = [];
-
-  const overrideFsWithFakes = getOverrideFsWithFakes();
-
-  overrideFsWithFakes(mainDi);
-
-  // Set up ~/.kube as existing as a folder
-  {
-    const { ensureDirSync } = mainDi.inject(fsInjectable);
-    const joinPaths = mainDi.inject(joinPathsInjectable);
-    const homeDirectoryPath = mainDi.inject(homeDirectoryPathInjectable);
-
-    ensureDirSync(joinPaths(homeDirectoryPath, ".kube"));
-  }
-
-  let environment = environments.application;
-
-  mainDi.override(mainExtensionsInjectable, (di) => {
-    const mainExtensionsState = di.inject(mainExtensionsStateInjectable);
-
-    return computed(() =>
-      [...mainExtensionsState.values()],
-    );
-  });
-
-  let trayMenuIconPath: string;
-
-  const traySetMenuItemsMock = jest.fn<any, [MinimalTrayMenuItem[]]>();
-
-  mainDi.override(electronTrayInjectable, () => ({
-    start: () => {},
-    stop: () => {},
-    setMenuItems: traySetMenuItemsMock,
-    setIconPath: (path) => {
-      trayMenuIconPath = path;
-    },
-  }));
-
-  const allowedResourcesState = observable.set<string>();
-  const windowHelpers = new Map<string, { di: DiContainer; getRendered: () => RenderResult }>();
-
-  const createElectronWindowFake: CreateElectronWindow = (configuration) => {
-    const windowId = configuration.id;
-
-    const windowDi = getRendererDi({ doGeneralOverrides: true });
-
-    overrideForWindow(windowDi, windowId);
-    overrideFsWithFakes(windowDi);
-
-    runInAction(() => {
-      windowDi.register(rendererExtensionsStateInjectable);
-    });
-
-    windowDi.override(
-      currentlyInClusterFrameInjectable,
-      () => environment === environments.clusterFrame,
-    );
-
-    windowDi.override(rendererExtensionsInjectable, (di) => {
-      const rendererExtensionState = di.inject(rendererExtensionsStateInjectable);
-
-      return computed(() => [...rendererExtensionState.values()]);
-    });
-
-    let rendered: RenderResult;
-
-    windowHelpers.set(windowId, { di: windowDi, getRendered: () => rendered });
-
-    return {
-      show: () => {},
-      close: () => {},
-      loadFile: async () => {},
-      loadUrl: async () => {
-        for (const callback of beforeWindowStartCallbacks) {
-          await callback(windowDi);
-        }
-
-        const startFrame = windowDi.inject(startFrameInjectable);
-
-        await startFrame();
-
-        for (const callback of afterWindowStartCallbacks) {
-          await callback(windowDi);
-        }
-
-        const history = windowDi.inject(historyInjectable);
-        const render = renderFor(windowDi);
-
-        rendered = render((
-          <>
-            <div id="terminal-init" />
-            <Router history={history}>
-              <environment.RootComponent />
-            </Router>
-          </>
-        ));
-      },
-      send: (arg) => {
-        sendToWindow(windowId, arg);
-      },
-      canGoBack: () => {
-        const history = windowDi.inject(historyInjectable) as MemoryHistory;
-
-        return history.canGo(-1);
-      },
-      canGoForward: () => {
-        const history = windowDi.inject(historyInjectable) as MemoryHistory;
-
-        return history.canGo(1);
-      },
-      reload: () => {
-        throw new Error("Tried to reload application window which is not implemented yet.");
-      },
-    };
-  };
-
-  mainDi.override(createElectronWindowInjectable, () => createElectronWindowFake);
-
-  let applicationHasStarted = false;
-
-  const namespaces = observable.set<string>();
-  const namespaceItems = observable.array<Namespace>();
-  const selectedNamespaces = observable.set<string>();
-  const clusters = observable.map<ClusterId, Cluster>();
-  const clusterId = "some-cluster-id";
-  const startMainApplication = mainDi.inject(startMainApplicationInjectable);
-
-  const startApplication = async ({ shouldStartHidden }: { shouldStartHidden: boolean }) => {
-    for (const callback of beforeApplicationStartCallbacks) {
-      await callback(mainDi);
-    }
-
-    mainDi.override(shouldStartHiddenInjectable, () => shouldStartHidden);
-    await startMainApplication();
-
-    for (const callback of afterApplicationStartCallbacks) {
-      await callback(mainDi);
-    }
-
-    applicationHasStarted = true;
-  };
-  const clusterEntity = new KubernetesCluster({
-    metadata: {
-      labels: {},
-      name: "some-context-name",
-      uid: clusterId,
-    },
-    spec: {
-      kubeconfigContext: "some-context-name",
-      kubeconfigPath: "/some-kube-config-path",
-    },
-    status: {
-      phase: LensKubernetesClusterStatus.DISCONNECTED,
-    },
-  });
-
-  mainDi.override(getClusterByIdInjectable, () => (id) => clusters.get(id));
-
-  beforeWindowStartCallbacks.push((windowDi) => {
-    windowDi.override(getClusterByIdInjectable, () => (id) => clusters.get(id));
-    windowDi.override(currentLocationInjectable, () => ({
-      hostname: "localhost",
-      port: `${mainDi.inject(lensProxyPortInjectable).get()}`,
-      protocol: "http",
-    }));
-  });
-
-  afterWindowStartCallbacks.push((windowDi) => {
-    windowDi.inject(catalogEntityRegistryInjectable).updateItems([clusterEntity]);
-  });
-
-  mainDi.override(listNamespacesForInjectable, () => () => async () => [...namespaces]);
-  mainDi.override(requestApiResourcesInjectable, () => async () => (
-    object.entries(apiResourceRecord)
-      .map(([apiName, data]) => ({ apiName, ...data }))
-  ));
-  mainDi.override(requestNamespaceListPermissionsForInjectable, () => () => async () => (resource) => allowedResourcesState.has(formatKubeApiResource(resource)));
-
-  runInAction(() => {
-    mainDi.register(getInjectable({
-      id: "create-fake-cluster",
-      instantiate: (di) => ({
-        id: "create-fake-cluster",
-        run: () => {
-          const createCluster = di.inject(createClusterInjectable);
-          const cluster = createCluster({
-            contextName: "some-context-name",
-            id: clusterId,
-            kubeConfigPath: "/some-kube-config-path",
-          }, {
-            clusterServerUrl: "https://some-url.com:8797",
-          });
-
-          clusters.set(clusterId, cluster);
-        },
-      }),
-      injectionToken: onLoadOfApplicationInjectionToken,
-    }));
-  });
-
-  const builder: ApplicationBuilder = {
-    mainDi,
-    applicationWindow: {
-      closeAll: () => {
-        const closeAll = mainDi.inject(closeAllWindowsInjectable);
-
-        closeAll();
-
-        document.documentElement.innerHTML = "";
-      },
-
-      get only() {
-        const applicationWindows = builder.applicationWindow.getAll();
-
-        if (applicationWindows.length > 1) {
-          throw new Error(
-            "Tried to get only application window when there are multiple windows.",
-          );
-        }
-
-        const applicationWindow = first(applicationWindows);
-
-        if (!applicationWindow) {
-          throw new Error(
-            "Tried to get only application window when there are no windows.",
-          );
-        }
-
-        return applicationWindow;
-      },
-
-      getAll: () =>
-        mainDi
-          .injectMany(applicationWindowInjectionToken)
-          .map(toWindowWithHelpersFor(windowHelpers)),
-
-      get: (id) => {
-        const applicationWindow = builder.applicationWindow
-          .getAll()
-          .find((window) => window.id === id);
-
-        if (!applicationWindow) {
-          throw new Error(`Tried to get application window with ID "${id}" but it was not found.`);
-        }
-
-        return applicationWindow;
-      },
-
-      create: (id) => {
-        const createApplicationWindow = mainDi.inject(createApplicationWindowInjectable);
-
-        createApplicationWindow(id);
-
-        return builder.applicationWindow.get(id);
-      },
-    },
-    namespaces: {
-      add: action((namespace) => {
-        namespaces.add(namespace);
-        namespaceItems.replace(createNamespacesFor(namespaces));
-      }),
-      select: action((namespace) => selectedNamespaces.add(namespace)),
-    },
-    applicationMenu: {
-      get items() {
-        const composite = mainDi.inject(
-          applicationMenuItemCompositeInjectable,
-        ).get();
-
-        return getCompositePaths(composite);
-      },
-
-      click: (...path: string[]) => {
-        const composite = mainDi.inject(
-          applicationMenuItemCompositeInjectable,
-        ).get();
-
-        const clickableMenuItem = findComposite(...path)(composite).value;
-
-        if(clickableMenuItem.kind === "clickable-menu-item") {
-          // Todo: prevent leaking of Electron
-          (clickableMenuItem.onClick as any)();
-        } else {
-          throw new Error(`Tried to trigger clicking of an application menu item, but item at path '${path.join(" -> ")}' isn't clickable.`);
-        }
-      },
-    },
-
-    tray: {
-      get: (id: string) => {
-        const lastCall = last(traySetMenuItemsMock.mock.calls);
-
-        assert(lastCall);
-
-        return lastCall[0].find(matches({ id })) ?? null;
-      },
-
-      getIconPath: () => trayMenuIconPath,
-
-      click: async (id: string) => {
-        const lastCall = last(traySetMenuItemsMock.mock.calls);
-
-        assert(lastCall);
-
-        const trayMenuItems = lastCall[0];
-
-        const menuItem = trayMenuItems.find(matches({ id })) ?? null;
-
-        if (!menuItem) {
-          const availableIds = pipeline(
-            trayMenuItems,
-            filter(item => !!item.click),
-            map(item => item.id),
-            join(", "),
-          );
-
-          throw new Error(`Tried to click tray menu item with ID ${id} which does not exist. Available IDs are: "${availableIds}"`);
-        }
-
-        if (!menuItem.enabled) {
-          throw new Error(`Tried to click tray menu item with ID ${id} which is disabled.`);
-        }
-
-        await menuItem.click?.();
-      },
-    },
-
-    preferences: {
-      close: () => {
-        const rendered = builder.applicationWindow.only.rendered;
-
-        const link = rendered.getByTestId("close-preferences");
-
-        fireEvent.click(link);
-      },
-
-      navigate: () => {
-        const windowDi = builder.applicationWindow.only.di;
-
-        const navigateToPreferences = windowDi.inject(
-          navigateToPreferencesInjectable,
-        );
-
-        navigateToPreferences();
-      },
-
-      navigateTo: (route: Route<any>, params: Partial<NavigateToRouteOptions<any>>) => {
-        const windowDi = builder.applicationWindow.only.di;
-
-        const navigateToRoute = windowDi.inject(navigateToRouteInjectionToken);
-
-        navigateToRoute(route, params);
-      },
-
-      navigation: {
-        click: (pathId: string) => {
-          const { rendered } = builder.applicationWindow.only;
-
-          const discover = discoverFor(() => rendered);
-
-          const { discovered: link } = discover.getSingleElement(
-            "preference-tab-link",
-            pathId,
-          );
-
-          fireEvent.click(link);
-        },
-      },
-    },
-
-    helmCharts: {
-      navigate: (parameters) => {
-        const windowDi = builder.applicationWindow.only.di;
-
-        const navigateToHelmCharts = windowDi.inject(
-          navigateToHelmChartsInjectable,
-        );
-
-        navigateToHelmCharts(parameters);
-      },
-    },
-
-    navigateWith: (token) => {
-      const windowDi = builder.applicationWindow.only.di;
-      const navigate = windowDi.inject(token);
-
-      navigate();
-    },
-
-    setEnvironmentToClusterFrame: () => {
-      environment = environments.clusterFrame;
-
-      builder.beforeWindowStart((windowDi) => {
-        windowDi.override(hostedClusterIdInjectable, () => clusterId);
-
-        // TODO: Figure out a way to remove this stub.
-        windowDi.override(namespaceStoreInjectable, () => ({
-          isLoaded: true,
-          get contextNamespaces() {
-            return Array.from(selectedNamespaces);
-          },
-          get allowedNamespaces() {
-            return Array.from(namespaces);
-          },
-          contextItems: namespaceItems,
-          api: windowDi.inject(namespaceApiInjectable),
-          items: namespaceItems,
-          selectNamespaces: () => {},
-          selectSingle: () => {},
-          getByPath: () => undefined,
-          pickOnlySelected: () => [],
-          isSelectedAll: () => false,
-          getTotalCount: () => namespaceItems.length,
-        } as Partial<NamespaceStore> as NamespaceStore));
-      });
-
-      builder.afterWindowStart(windowDi => {
-        windowDi.inject(catalogEntityRegistryInjectable).activeEntity = clusterEntity;
-      });
-
-      return builder;
-    },
-
-    extensions: {
-      get: (id: string) => {
-        const windowInstances = pipeline(
-          builder.applicationWindow.getAll(),
-
-          map((window): [string, LensRendererExtension] => [
-            window.id,
-            findExtensionInstance(window.di, rendererExtensionsInjectable, id),
-          ]),
-
-          items => Object.fromEntries(items),
-        );
-
-        return {
-          main: findExtensionInstance(mainDi, mainExtensionsInjectable, id),
-
-          applicationWindows: {
-            get only() {
-              return findExtensionInstance(
-                builder.applicationWindow.only.di,
-                rendererExtensionsInjectable,
-                id,
-              );
-            },
-
-            ...windowInstances,
-          },
-        };
-      },
-
-      enable: (...extensions) => {
-        builder.afterWindowStart((windowDi) => {
-          const enabledExtension = enableExtensionFor(windowDi, rendererExtensionsStateInjectable);
-
-          runInAction(() => {
-            for (const extension of extensions) {
-              enabledExtension(getExtensionFakeForRenderer(
-                windowDi,
-                extension.id,
-                extension.name,
-                extension.rendererOptions ?? {},
-              ));
-            }
-          });
-        });
-
-        builder.afterApplicationStart((mainDi) => {
-          const enabledExtension = enableExtensionFor(mainDi, mainExtensionsStateInjectable);
-
-          runInAction(() => {
-            for (const extension of extensions) {
-              enabledExtension(getExtensionFakeForMain(
-                mainDi,
-                extension.id,
-                extension.name,
-                extension.mainOptions ?? {},
-              ));
-            }
-          });
-        });
-      },
-
-      disable: (...extensions) => {
-        builder.afterWindowStart(windowDi => {
-          extensions
-            .map((ext) => ext.id)
-            .forEach(
-              disableExtensionFor(windowDi, rendererExtensionsStateInjectable),
-            );
-        });
-
-        builder.afterApplicationStart(mainDi => {
-          extensions
-            .map((ext) => ext.id)
-            .forEach(
-              disableExtensionFor(mainDi, mainExtensionsStateInjectable),
-            );
-        });
-      },
-    },
-
-    allowKubeResource: (resource) => {
-      environment.onAllowKubeResource();
-
-      runInAction(() => {
-        allowedResourcesState.add(formatKubeApiResource(resource));
-      });
-
-      return builder;
-    },
-
-    beforeApplicationStart(callback) {
-      if (applicationHasStarted) {
-        callback(mainDi);
-      }
-
-      beforeApplicationStartCallbacks.push(callback);
-
-      return builder;
-    },
-
-    afterApplicationStart(callback) {
-      if (applicationHasStarted) {
-        callback(mainDi);
-      }
-
-      afterApplicationStartCallbacks.push(callback);
-
-      return builder;
-    },
-
-    beforeWindowStart(callback) {
-      const alreadyRenderedWindows = builder.applicationWindow.getAll();
-
-      alreadyRenderedWindows.forEach((window) => {
-        callback(window.di);
-      });
-
-      beforeWindowStartCallbacks.push(callback);
-
-      return builder;
-    },
-
-    afterWindowStart(callback) {
-      const alreadyRenderedWindows = builder.applicationWindow.getAll();
-
-      alreadyRenderedWindows.forEach((window) => {
-        callback(window.di);
-      });
-
-      afterWindowStartCallbacks.push(callback);
-
-      return builder;
-    },
-
-    startHidden: async () => {
-      await startApplication({ shouldStartHidden: true });
-    },
-
-    quit() {
-      const runManySync = runManySyncFor(builder.mainDi);
-      const beforeQuitOfFrontEnd = runManySync(beforeQuitOfFrontEndInjectionToken);
-      const beforeQuitOfBackEnd = runManySync(beforeQuitOfBackEndInjectionToken);
-
-      beforeQuitOfFrontEnd();
-      beforeQuitOfBackEnd();
-    },
-
-    async render() {
-      await startApplication({ shouldStartHidden: false });
-
-      return builder
-        .applicationWindow
-        .get("first-application-window")
-        .rendered;
-    },
-
-    select: {
-      openMenu: (menuId) => {
-        const rendered = builder.applicationWindow.only.rendered;
-
-        const select = rendered.baseElement.querySelector<HTMLElement>(
-          `#${menuId}`,
-        );
-
-        assert(select, `Could not find select with ID "${menuId}"`);
-
-        openMenu(select);
-
-        return {
-          selectOption: selectOptionFor(builder, menuId),
-        };
-      },
-
-      selectOption: (menuId, labelText) => selectOptionFor(builder, menuId)(labelText),
-
-      getValue: (menuId) => {
-        const rendered = builder.applicationWindow.only.rendered;
-
-        const select = rendered.baseElement.querySelector<HTMLInputElement>(
-          `#${menuId}`,
-        );
-
-        assert(select, `Could not find select with ID "${menuId}"`);
-
-        const controlElement = select.closest(".Select__control");
-
-        assert(controlElement, `Could not find select value for menu with ID "${menuId}"`);
-
-        return controlElement.textContent || "";
-      },
-    },
-  };
-
-  return builder;
-};
-
-export const rendererExtensionsStateInjectable = getInjectable({
-  id: "renderer-extensions-state",
-  instantiate: () => observable.map<string, LensRendererExtension>(),
-});
-
-const mainExtensionsStateInjectable = getInjectable({
-  id: "main-extensions-state",
-  instantiate: () => observable.map<string, LensMainExtension>(),
-});
-
-const findExtensionInstance = <T extends LensExtension> (di: DiContainer, injectable: Injectable<IComputedValue<T[]>, any, any>, id: string) => {
-  const instance = di.inject(injectable).get().find(ext => ext.id === id);
-
-  if (!instance) {
-    throw new Error(`Tried to get extension with ID ${id}, but it didn't exist`);
-  }
-
-  return instance;
-};
-
-type ApplicationWindowHelpers = Map<string, { di: DiContainer; getRendered: () => RenderResult }>;
-
-const toWindowWithHelpersFor =
-  (windowHelpers: ApplicationWindowHelpers) => (applicationWindow: LensWindow) => ({
-    ...applicationWindow,
-
-    get rendered() {
-      const helpers = windowHelpers.get(applicationWindow.id);
-
-      if (!helpers) {
-        throw new Error(
-          `Tried to get rendered for application window "${applicationWindow.id}" before it was started.`,
-        );
-      }
-
-      return helpers.getRendered();
-    },
-
-    get di() {
-      const helpers = windowHelpers.get(applicationWindow.id);
-
-      if (!helpers) {
-        throw new Error(
-          `Tried to get di for application window "${applicationWindow.id}" before it was started.`,
-        );
-      }
-
-      return helpers.di;
-    },
-  });
-
-const environments = {
-  application: {
-    RootComponent: RootFrame,
-
-    onAllowKubeResource: () => {
-      throw new Error(
-        "Tried to allow kube resource when environment is not cluster frame.",
-      );
-    },
-  } as Environment,
-
-  clusterFrame: {
-    RootComponent: ClusterFrame,
-    onAllowKubeResource: () => {},
-  } as Environment,
-};
-
-const selectOptionFor = (builder: ApplicationBuilder, menuId: string) => (labelText: string) => {
-  const rendered = builder.applicationWindow.only.rendered;
-
-  const menuOptions = rendered.baseElement.querySelector<HTMLElement>(
-    `.${menuId}-options`,
-  );
-
-  assert(menuOptions, `Could not find select options for menu with ID "${menuId}"`);
-
-  const option = queryByText(menuOptions, labelText);
-
-  assert(option, `Could not find select option with label "${labelText}" for menu with ID "${menuId}"`);
-
-  userEvent.click(option);
-};
-
-const enableExtensionFor = (
-  di: DiContainer,
-  stateInjectable: Injectable<ObservableMap<string, any>, any, any>,
-) => {
-  const extensionState = di.inject(stateInjectable);
-
-  return (extensionInstance: LensExtension) => {
-    const extension = di.inject(extensionInjectable, extensionInstance);
-
-    runInAction(() => {
-      extension.register();
-      extensionState.set(extensionInstance.id, extensionInstance);
-    });
-  };
-};
-
-const disableExtensionFor =
-  (
-    di: DiContainer,
-    stateInjectable: Injectable<ObservableMap<string, any>, unknown, void>,
-  ) =>
-    (id: string) => {
-      const extensionsState = di.inject(stateInjectable);
-      const instance = extensionsState.get(id);
-
-      if (!instance) {
-        throw new Error(
-          `Tried to disable extension with ID "${id}", but it wasn't enabled`,
-        );
-      }
-
-      const extension = di.inject(extensionInjectable, instance);
-
-      runInAction(() => {
-        extension.deregister();
-        extensionsState.delete(id);
-      });
-    };