angular-cn/modules/playground/e2e_test/async/async_spec.ts

103 lines
3.2 KiB
TypeScript

/**
* @license
* Copyright Google Inc. All Rights Reserved.
*
* Use of this source code is governed by an MIT-style license that can be
* found in the LICENSE file at https://angular.io/license
*/
import {verifyNoBrowserErrors} from 'e2e_util/e2e_util';
import {$, browser} from 'protractor';
import {promise} from 'selenium-webdriver';
describe('async', () => {
const URL = 'all/playground/src/async/index.html';
beforeEach(() => browser.get(URL));
it('should work with synchronous actions', () => {
const increment = $('#increment');
increment.$('.action').click();
expect(increment.$('.val').getText()).toEqual('1');
});
it('should wait for asynchronous actions', () => {
const timeout = $('#delayedIncrement');
// At this point, the async action is still pending, so the count should
// still be 0.
expect(timeout.$('.val').getText()).toEqual('0');
timeout.$('.action').click();
// whenStable should only be called when the async action finished,
// so the count should be 1 at this point.
expect(timeout.$('.val').getText()).toEqual('1');
});
it('should notice when asynchronous actions are cancelled', () => {
const timeout = $('#delayedIncrement');
// At this point, the async action is still pending, so the count should
// still be 0.
expect(timeout.$('.val').getText()).toEqual('0');
browser.ignoreSynchronization = true;
timeout.$('.action').click();
timeout.$('.cancel').click();
browser.ignoreSynchronization = false;
// whenStable should be called since the async action is cancelled. The
// count should still be 0;
expect(timeout.$('.val').getText()).toEqual('0');
});
it('should wait for a series of asynchronous actions', () => {
const timeout = $('#multiDelayedIncrements');
// At this point, the async action is still pending, so the count should
// still be 0.
expect(timeout.$('.val').getText()).toEqual('0');
timeout.$('.action').click();
// whenStable should only be called when all the async actions
// finished, so the count should be 10 at this point.
expect(timeout.$('.val').getText()).toEqual('10');
});
it('should wait via frameworkStabilizer', () => {
const whenAllStable = (): promise.Promise<any> => {
return browser.executeAsyncScript('window.frameworkStabilizers[0](arguments[0]);');
};
// This disables protractor's wait mechanism
browser.ignoreSynchronization = true;
const timeout = $('#multiDelayedIncrements');
// At this point, the async action is still pending, so the count should
// still be 0.
expect(timeout.$('.val').getText()).toEqual('0');
timeout.$('.action').click();
whenAllStable().then((didWork: any) => {
// whenAllStable should only be called when all the async actions
// finished, so the count should be 10 at this point.
expect(timeout.$('.val').getText()).toEqual('10');
expect(didWork).toBeTruthy(); // Work was done.
});
whenAllStable().then((didWork: any) => {
// whenAllStable should be called immediately since nothing is pending.
expect(didWork).toBeFalsy(); // No work was done.
browser.ignoreSynchronization = false;
});
});
afterEach(verifyNoBrowserErrors);
});