test_hooks.ts
/**
* @license
* Copyright Google LLC All Rights Reserved.
*
* Use of this source code is governed by an MIT-style license that can be
* found in the LICENSE file at https://angular.io/license
*/
/**
* Public Test Library for unit testing Angular applications. Assumes that you are running
* with Jasmine, Mocha, or a similar framework which exports a beforeEach function and
* allows tests to be asynchronous by either returning a promise or using a 'done' parameter.
*/
import {resetFakeAsyncZone} from './fake_async';
import {TestBedImpl} from './test_bed';
// Reset the test providers and the fake async zone before each test.
// We keep a guard because somehow this file can make it into a bundle and be executed
// beforeEach is only defined when executing the tests
globalThis.beforeEach?.(getCleanupHook(false));
// We provide both a `beforeEach` and `afterEach`, because the updated behavior for
// tearing down the module is supposed to run after the test so that we can associate
// teardown errors with the correct test.
// We keep a guard because somehow this file can make it into a bundle and be executed
// afterEach is only defined when executing the tests
globalThis.afterEach?.(getCleanupHook(true));
function getCleanupHook(expectedTeardownValue: boolean) {
return () => {
const testBed = TestBedImpl.INSTANCE;
if (testBed.shouldTearDownTestingModule() === expectedTeardownValue) {
testBed.resetTestingModule();
resetFakeAsyncZone();
}
};
}
/**
* This API should be removed. But doing so seems to break `google3` and so it requires a bit of
* investigation.
*
* A work around is to mark it as `@codeGenApi` for now and investigate later.
*
* @codeGenApi
*/
// TODO(iminar): Remove this code in a safe way.
export const __core_private_testing_placeholder__ = '';