Introduce a collection of behavioural unit tests for navigation (#5085)

This reverts commit ecd881c25df219b511d7efd43dac59e748b21cc7.

Signed-off-by: Iku-turso <mikko.aspiala@gmail.com>
Co-authored-by: Janne Savolainen <janne.savolainen@live.fi>

Co-authored-by: Janne Savolainen <janne.savolainen@live.fi>

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

@@ -0,0 +1,70 @@
+/**
+ * Copyright (c) OpenLens Authors. All rights reserved.
+ * Licensed under MIT License. See LICENSE in root directory for more information.
+ */
+import type { RenderResult } from "@testing-library/react";
+import { ApplicationBuilder, getApplicationBuilder } from "../../renderer/components/test-utils/get-application-builder";
+import userStoreInjectable from "../../common/user-store/user-store.injectable";
+import type { UserStore } from "../../common/user-store";
+import themeStoreInjectable from "../../renderer/theme-store.injectable";
+import type { ThemeStore } from "../../renderer/theme.store";
+import { observable } from "mobx";
+
+describe("preferences - navigation to kubernetes preferences", () => {
+  let applicationBuilder: ApplicationBuilder;
+
+  beforeEach(() => {
+    applicationBuilder = getApplicationBuilder();
+
+    applicationBuilder.beforeSetups(({ rendererDi }) => {
+      const userStoreStub = {
+        extensionRegistryUrl: { customUrl: "some-custom-url" },
+        syncKubeconfigEntries: observable.map(),
+      } as unknown as UserStore;
+
+      rendererDi.override(userStoreInjectable, () => userStoreStub);
+
+      const themeStoreStub = ({ themeOptions: [] }) as unknown as ThemeStore;
+
+      rendererDi.override(themeStoreInjectable, () => themeStoreStub);
+    });
+  });
+
+  describe("given in preferences, when rendered", () => {
+    let rendered: RenderResult;
+
+    beforeEach(async () => {
+      applicationBuilder.beforeRender(() => {
+        applicationBuilder.preferences.navigate();
+      });
+
+      rendered = await applicationBuilder.render();
+    });
+
+    it("renders", () => {
+      expect(rendered.container).toMatchSnapshot();
+    });
+
+    it("does not show kubernetes preferences yet", () => {
+      const page = rendered.queryByTestId("kubernetes-preferences-page");
+
+      expect(page).toBeNull();
+    });
+
+    describe("when navigating to kubernetes preferences using navigation", () => {
+      beforeEach(() => {
+        applicationBuilder.preferences.navigation.click("kubernetes");
+      });
+
+      it("renders", () => {
+        expect(rendered.container).toMatchSnapshot();
+      });
+
+      it("shows kubernetes preferences", () => {
+        const page = rendered.getByTestId("kubernetes-preferences-page");
+
+        expect(page).not.toBeNull();
+      });
+    });
+  });
+});