react-native/local-cli/link/__tests__/promiseWaterfall.spec.js
Mike Grabowski 0af640bfae Further RNPM integration
Summary:
This commit removes `rnpm` folder that we left during initial merge to keep the diff cleaner. The `core`, `link` and `install` have now the same directory structure as any other command to make development more natural for all of us.

From most notable differences:
1) the `src` folder is now gone. The new structure should make it easier for people to work with the stuff and also move us closer to 100% rnpm integration,
2) There's also no `package.json` present in any of the `rnpm` packages, since they are no longer standalone modules,
3) There's no `bugs.url` in link.js since main package.json of React doesn't specify it. Decided to hardcode it to facebook/react-native since it's really unlikely to change. If one would prefer to use pkg.bugs.url as before, a separate PR modifying package.json should be sent.
Closes https://github.com/facebook/react-native/pull/9509

Differential Revision: D3751115

fbshipit-source-id: 74ae8330f7634df0887ad676808f47eee4b8de85
2016-08-22 08:58:37 -07:00

40 lines
970 B
JavaScript

'use strict';
jest.autoMockOff();
const sinon = require('sinon');
const promiseWaterfall = require('../promiseWaterfall');
describe('promiseWaterfall', () => {
it('should run promises in a sequence', (done) => {
const tasks = [sinon.stub(), sinon.stub()];
promiseWaterfall(tasks).then(() => {
expect(tasks[0].calledBefore(tasks[1])).toBeTruthy();
done();
});
});
it('should resolve with last promise value', (done) => {
const tasks = [sinon.stub().returns(1), sinon.stub().returns(2)];
promiseWaterfall(tasks).then(value => {
expect(value).toEqual(2);
done();
});
});
it('should stop the sequence when one of promises is rejected', (done) => {
const error = new Error();
const tasks = [sinon.stub().throws(error), sinon.stub().returns(2)];
promiseWaterfall(tasks).catch(err => {
expect(err).toEqual(error);
expect(tasks[1].callCount).toEqual(0);
done();
});
});
});