TestNgrxJest

This project is related to the folowwin issue ngrx/platform#3243

Reproduction

1. Clone this repo: github.com:cedricduffournet/test-ngrx-error.git
2. Install dependencies

yarn install

3. Run jest test

yarn jest

The following error occur in all tests with provideMockStore added to providers

 Cannot configure the test module when the test module has already been instantiated. Make sure you are not using `inject` before `R3TestBed.configureTestingModule`.
 beforeEach(() => {
  TestBed.configureTestingModule({
                ^

If i set jest-jasmine2 as testRunner in jest config, I don't have any error. I did not have this issue in version 12 of angular and ngrx

additional information

if I disable destroyAfterEach in configureTestingModule all test pass https://github.com/cedricduffournet/test-ngrx-error/blob/master/src/app/books/containers/collection-page.component.spec.ts#L40 successfully

solution ?

maybe we could use shouldTearDownTestingModule in https://github.com/ngrx/platform/blob/master/modules/store/testing/src/mock_store.ts#L21 and write something like this ?

if (typeof afterEach === "function") {
  afterEach(() => {
    try {
      const testBed = getTestBed() as any;
      const shouldTearDown = testBed.shouldTearDownTestingModule();
      if (!shouldTearDown) {
        const mockStore: MockStore | undefined = TestBed.inject(MockStore);
        if (mockStore) {
          mockStore.resetSelectors();
        }
      }
      // eslint-disable-next-line no-empty
    } catch {
      console.log("error");
    }
  });
}