Unit Test - Login Sagas

userLoginSagaRefactor.test.js

describe('Unit Test - Login Sagas', () => {
  describe('userLoginSagaRefactor', () => {
    describe('when user is authorised', () => {
      it('should yield userLoginSagaRefactor saga, which yields getLoginFormState, yield authoriseUser yield LoginActions.clearLogin and yield getUserSettingsSaga', () => {
        const generator = userLoginSagaRefactor();

        expect(generator.next().value).toEqual(select(getLoginFormState));

        expect(
          generator.next({
            username: 'some username',
            password: 'some password',
          }).value,
        ).toEqual(call(authoriseUserSaga, 'some username', 'some password'));

        expect(generator.next(true).value).toEqual(
          put(LoginActions.clearLogin()),
        );

        expect(generator.next().value).toEqual(call(getUserSettingsSaga));

        expect(generator.next().done).toBeTruthy();
      });
    });
  });
});