Move testing utilities to separate package

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

packages/core/src/common/test-utils/flush-promises.ts

@@ -1,7 +0,0 @@
-/**
- * Copyright (c) OpenLens Authors. All rights reserved.
- * Licensed under MIT License. See LICENSE in root directory for more information.
- */
-import { setImmediate } from "timers";
-
-export const flushPromises = () => new Promise(setImmediate);

packages/core/src/common/test-utils/get-promise-status.ts

@@ -1,17 +0,0 @@
-/**
- * Copyright (c) OpenLens Authors. All rights reserved.
- * Licensed under MIT License. See LICENSE in root directory for more information.
- */
-import { flushPromises } from "./flush-promises";
-
-export const getPromiseStatus = async (promise: Promise<unknown>) => {
-  const status = { fulfilled: false };
-
-  promise.finally(() => {
-    status.fulfilled = true;
-  });
-
-  await flushPromises();
-
-  return status;
-};

packages/core/src/common/test-utils/use-fake-time.ts

@@ -1,25 +0,0 @@
-/**
- * Copyright (c) OpenLens Authors. All rights reserved.
- * Licensed under MIT License. See LICENSE in root directory for more information.
- */
-import { act } from "@testing-library/react";
-
-let usingFakeTime = false;
-
-export const advanceFakeTime = (milliseconds: number) => {
-  if (!usingFakeTime) {
-    throw new Error("Tried to advance fake time but it was not enabled. Call useFakeTime() first.");
-  }
-
-  act(() => {
-    jest.advanceTimersByTime(milliseconds);
-  });
-};
-
-export const testUsingFakeTime = (dateTime = "2015-10-21T07:28:00Z") => {
-  usingFakeTime = true;
-
-  jest.useFakeTimers();
-
-  jest.setSystemTime(new Date(dateTime));
-};

packages/core/src/test-utils/override-fs-with-fakes.ts

@@ -62,6 +62,7 @@ export const getOverrideFsWithFakes = () => {
       ensureDirSync,
       createReadStream: root.createReadStream as any,
       stat: root.promises.stat as any,
+      unlink: root.promises.unlink,
     }));
   };
 };