angular-docs-cn/packages/upgrade/static/test/integration/testability_spec.ts

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/**
* @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 {NgModule, Testability, destroyPlatform} from '@angular/core';
import {NgZone} from '@angular/core/src/zone/ng_zone';
import {fakeAsync, flush, tick} from '@angular/core/testing';
import {BrowserModule} from '@angular/platform-browser';
import {platformBrowserDynamic} from '@angular/platform-browser-dynamic';
import {UpgradeModule} from '@angular/upgrade/static';
import * as angular from '../../../src/common/src/angular1';
import {html, withEachNg1Version} from '../../../src/common/test/helpers/common_test_helpers';
import {bootstrap} from './static_test_helpers';
withEachNg1Version(() => {
describe('testability', () => {
beforeEach(() => destroyPlatform());
afterEach(() => destroyPlatform());
@NgModule({imports: [BrowserModule, UpgradeModule]})
class Ng2Module {
ngDoBootstrap() {}
}
it('should handle deferred bootstrap', fakeAsync(() => {
let applicationRunning = false;
let stayedInTheZone: boolean = undefined !;
const ng1Module = angular.module_('ng1', []).run(() => {
applicationRunning = true;
stayedInTheZone = NgZone.isInAngularZone();
});
const element = html('<div></div>');
window.name = 'NG_DEFER_BOOTSTRAP!' + window.name;
bootstrap(platformBrowserDynamic(), Ng2Module, element, ng1Module);
setTimeout(() => { (<any>window).angular.resumeBootstrap(); }, 100);
expect(applicationRunning).toEqual(false);
tick(100);
expect(applicationRunning).toEqual(true);
expect(stayedInTheZone).toEqual(true);
}));
it('should propagate return value of resumeBootstrap', fakeAsync(() => {
const ng1Module = angular.module_('ng1', []);
let a1Injector: angular.IInjectorService|undefined;
ng1Module.run([
'$injector', function($injector: angular.IInjectorService) { a1Injector = $injector; }
]);
const element = html('<div></div>');
window.name = 'NG_DEFER_BOOTSTRAP!' + window.name;
bootstrap(platformBrowserDynamic(), Ng2Module, element, ng1Module);
tick(100);
const value = (<any>window).angular.resumeBootstrap();
expect(value).toBe(a1Injector);
flush();
}));
it('should wait for ng2 testability', fakeAsync(() => {
const ng1Module = angular.module_('ng1', []);
const element = html('<div></div>');
bootstrap(platformBrowserDynamic(), Ng2Module, element, ng1Module).then((upgrade) => {
const ng2Testability: Testability = upgrade.injector.get(Testability);
ng2Testability.increasePendingRequestCount();
let ng2Stable = false;
let ng1Stable = false;
angular.getTestability(element).whenStable(() => { ng1Stable = true; });
setTimeout(() => {
ng2Stable = true;
ng2Testability.decreasePendingRequestCount();
}, 100);
expect(ng1Stable).toEqual(false);
expect(ng2Stable).toEqual(false);
tick(100);
expect(ng1Stable).toEqual(true);
expect(ng2Stable).toEqual(true);
});
}));
it('should not wait for $interval', fakeAsync(() => {
const ng1Module = angular.module_('ng1', []);
const element = html('<div></div>');
bootstrap(platformBrowserDynamic(), Ng2Module, element, ng1Module).then((upgrade) => {
const ng2Testability: Testability = upgrade.injector.get(Testability);
const $interval: angular.IIntervalService = upgrade.$injector.get('$interval');
let ng2Stable = false;
let intervalDone = false;
const id = $interval((arg: string) => {
// should only be called once
expect(intervalDone).toEqual(false);
intervalDone = true;
expect(NgZone.isInAngularZone()).toEqual(true);
expect(arg).toEqual('passed argument');
}, 200, 0, true, 'passed argument');
ng2Testability.whenStable(() => { ng2Stable = true; });
tick(100);
expect(intervalDone).toEqual(false);
expect(ng2Stable).toEqual(true);
tick(200);
expect(intervalDone).toEqual(true);
expect($interval.cancel(id)).toEqual(true);
// Interval should not fire after cancel
tick(200);
});
}));
});
});