Using beforeEach/beforeAll

[Draeggiar]

I wanted to setup some mocks before actual test cases, but it seems that beforeEach/beforeAll methods are not called at all.
Here's sample of my code:

    describe('elementInfoLoad', () => {

        let authenticatedFetchMock;
        let formSaga;
        beforeEach(() => {
            authenticatedFetchMock = {
                authenticatedFetchAsync: () => {},
            };
            formSaga = formSagaInjector({
                '../../Utils/authenticatedFetch': authenticatedFetchMock,
            });
        })

        describe('should load element data for lite', () => {
            const it = sagaHelper(formSaga.elementInfoLoad());

            it('should dispatch `formElementInfoLoading` action', result => {
                expect(result).toEqual(put(formElementInfoLoading()));
            });

        });
    });

In this case formSaga will always be undefined. It works fine without beforeEach, although it is kinda messy.
Is it possible to do it this way, or am i missing something ?