使用redux-saga-test-plan模拟操作负载

Question

给定一个在动作有效负载上操作的saga，其中action已由takeLatest传入，例如

export function* mySaga(action) {
  try {
    yield all(action.payload.items.map(p => call(doSomething, p)));
    }
    yield put(actionSuccess());
  } catch (error) {
    yield put(actionFailed(error));
  }
}

export function* watchMySaga() {
  yield takeLatest(AN_ACTION, mySaga);
}

如何在mySaga的redux-saga-test-plan测试中模拟action？因为action.payload是undefined，所以我的测试当前抛出了一个错误。

Answer 1

看起来，您只需将一个模拟操作对象作为第二个参数传递给expectSaga，例如

return expectSaga(mySaga, action)
    .provide([[...]])
    .put(actionSuccess())
    .run();