MyCrypto/spec/sagas/rates.spec.ts

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import { fetchRatesSaga } from 'sagas/rates';
import { call, put } from 'redux-saga/effects';
import { fetchCCRatesSucceeded, fetchCCRatesFailed, fetchCCRatesRequested } from 'actions/rates';
import { fetchRates } from 'api/rates';
describe('fetch rates saga success', () => {
const saga = fetchRatesSaga(fetchCCRatesRequested());
it('should fetch the rates', () => {
expect(saga.next().value).toEqual(call(fetchRates, []));
});
it('should dispatch a success action', () => {
expect(saga.next({}).value).toEqual(put(fetchCCRatesSucceeded({})));
});
it('should be done', () => {
expect(saga.next().done).toEqual(true);
});
});
describe('fetch rates saga failure', () => {
const saga = fetchRatesSaga(fetchCCRatesRequested());
it('it should throw and dispatch a failure action', () => {
saga.next();
expect(saga.throw!().value).toEqual(put(fetchCCRatesFailed()));
});
it('should be done', () => {
expect(saga.next().done).toEqual(true);
});
});