Test Sagas with reselect

How to successfully test a `yield select(selector)` with jasmine?

HTML

<script src="https://cdnjs.cloudflare.com/ajax/libs/redux/3.6.0/redux.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/redux-saga/0.14.5/redux-saga.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/babel-polyfill/6.23.0/polyfill.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/reselect/3.0.0/reselect.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/jasmine/2.5.2/jasmine.min.js"></script>
<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/jasmine/2.5.2/jasmine.min.css">
<script src="https://cdnjs.cloudflare.com/ajax/libs/jasmine/2.5.2/jasmine-html.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/jasmine/2.5.2/boot.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/immutable/3.8.1/immutable.min.js"></script>

Babel + JSX

const { takeEvery, put, select } = ReduxSaga.effects;
const { createSelector } = Reselect;
const { fromJS } = Immutable;
const SEND_MESSAGE = 'sendMessage';
const MESSAGE_SENT = 'messageSent';
const SEND_ERROR = 'sendError';

const selectDomain = () => (state) => state.get('myDomain');
const selectDomainConfig = () => createSelector(selectDomain(), (domain) => domain.get('config'));

const selector = createSelector(selectDomain(), (domain) => domain.get('message'))
const selectDomainMessage = () => selector;

function sentAction(message) {
  return {
    type: MESSAGE_SENT,
    message,
  };
}

function sendError(error) {
  return {
    type: SEND_ERROR,
    error,
  }
}

function* send() {
  const message = yield select(selectDomainMessage());
  try {
    const config = yield call(selectDomainConfig());
    yield put(sentAction(message));
  } catch (error) {
    yield put(sendError(error));
  }
}

function* watchSender() {
  yield takeEvery(SEND_MESSAGE)
}

describe('watchSender Saga', () => {
  const generator = watchSender();
  
  it('returns takeEvery descriptor', () => {
    const expectedDescriptor = takeEvery(SEND_MESSAGE);
    const returnedDescriptor = generator.next().value;
    
    expect(returnedDescriptor).toEqual(expectedDescriptor);
  })
});

describe('send Saga', () => {
  const generator = send();
  const state = fromJS({ myDomain: { config: { user: 'me' }, message: 'Hello World' }});
  
	it('returns select descriptor', () => {
    let expectedDescriptor = select(selectDomainMessage());
    let returnedDescriptor = generator.next().value;

    expect(returnedDescriptor).toEqual(expectedDescriptor);
  });
});