615 lines
25 KiB
TypeScript
615 lines
25 KiB
TypeScript
/**
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* @license
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* Copyright Google Inc. All Rights Reserved.
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*
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* Use of this source code is governed by an MIT-style license that can be
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* found in the LICENSE file at https://angular.io/license
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*/
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import {AfterContentChecked, AfterContentInit, AfterViewChecked, AfterViewInit, ApplicationRef, Component, DoCheck, Inject, Injector, Input, NgModule, NgZone, OnChanges, OnDestroy, OnInit, StaticProvider, ViewRef, destroyPlatform} from '@angular/core';
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import {async, fakeAsync, tick} from '@angular/core/testing';
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import {BrowserModule} from '@angular/platform-browser';
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import {platformBrowserDynamic} from '@angular/platform-browser-dynamic';
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import {browserDetection} from '@angular/platform-browser/testing/src/browser_util';
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import {downgradeComponent, downgradeModule} from '@angular/upgrade/static';
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import * as angular from '@angular/upgrade/static/src/common/angular1';
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import {$ROOT_SCOPE, INJECTOR_KEY, LAZY_MODULE_REF} from '@angular/upgrade/static/src/common/constants';
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import {LazyModuleRef} from '@angular/upgrade/static/src/common/util';
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import {html, multiTrim, withEachNg1Version} from '../test_helpers';
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withEachNg1Version(() => {
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[true, false].forEach(propagateDigest => {
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describe(`lazy-load ng2 module (propagateDigest: ${propagateDigest})`, () => {
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beforeEach(() => destroyPlatform());
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it('should support downgrading a component and propagate inputs', async(() => {
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@Component(
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{selector: 'ng2A', template: 'a({{ value }}) | <ng2B [value]="value"></ng2B>'})
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class Ng2AComponent {
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@Input() value = -1;
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}
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@Component({selector: 'ng2B', template: 'b({{ value }})'})
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class Ng2BComponent {
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@Input() value = -2;
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}
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@NgModule({
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declarations: [Ng2AComponent, Ng2BComponent],
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entryComponents: [Ng2AComponent],
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imports: [BrowserModule],
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})
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class Ng2Module {
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ngDoBootstrap() {}
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}
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const bootstrapFn = (extraProviders: StaticProvider[]) =>
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platformBrowserDynamic(extraProviders).bootstrapModule(Ng2Module);
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const lazyModuleName = downgradeModule<Ng2Module>(bootstrapFn);
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const ng1Module =
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angular.module('ng1', [lazyModuleName])
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.directive(
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'ng2', downgradeComponent({component: Ng2AComponent, propagateDigest}))
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.run(($rootScope: angular.IRootScopeService) => $rootScope.value = 0);
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const element = html('<div><ng2 [value]="value" ng-if="loadNg2"></ng2></div>');
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const $injector = angular.bootstrap(element, [ng1Module.name]);
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const $rootScope = $injector.get($ROOT_SCOPE) as angular.IRootScopeService;
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expect(element.textContent).toBe('');
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expect(() => $injector.get(INJECTOR_KEY)).toThrowError();
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$rootScope.$apply('value = 1');
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expect(element.textContent).toBe('');
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expect(() => $injector.get(INJECTOR_KEY)).toThrowError();
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$rootScope.$apply('loadNg2 = true');
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expect(element.textContent).toBe('');
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expect(() => $injector.get(INJECTOR_KEY)).toThrowError();
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// Wait for the module to be bootstrapped.
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setTimeout(() => {
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expect(() => $injector.get(INJECTOR_KEY)).not.toThrow();
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// Wait for `$evalAsync()` to propagate inputs.
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setTimeout(() => expect(element.textContent).toBe('a(1) | b(1)'));
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});
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}));
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it('should support using an upgraded service', async(() => {
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class Ng2Service {
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constructor(@Inject('ng1Value') private ng1Value: string) {}
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getValue = () => `${this.ng1Value}-bar`;
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}
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@Component({selector: 'ng2', template: '{{ value }}'})
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class Ng2Component {
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value: string;
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constructor(ng2Service: Ng2Service) { this.value = ng2Service.getValue(); }
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}
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@NgModule({
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declarations: [Ng2Component],
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entryComponents: [Ng2Component],
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imports: [BrowserModule],
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providers: [
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Ng2Service,
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{
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provide: 'ng1Value',
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useFactory: (i: angular.IInjectorService) => i.get('ng1Value'),
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deps: ['$injector'],
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},
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],
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})
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class Ng2Module {
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ngDoBootstrap() {}
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}
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const bootstrapFn = (extraProviders: StaticProvider[]) =>
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platformBrowserDynamic(extraProviders).bootstrapModule(Ng2Module);
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const lazyModuleName = downgradeModule<Ng2Module>(bootstrapFn);
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const ng1Module =
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angular.module('ng1', [lazyModuleName])
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.directive('ng2', downgradeComponent({component: Ng2Component, propagateDigest}))
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.value('ng1Value', 'foo');
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const element = html('<div><ng2 ng-if="loadNg2"></ng2></div>');
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const $injector = angular.bootstrap(element, [ng1Module.name]);
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const $rootScope = $injector.get($ROOT_SCOPE) as angular.IRootScopeService;
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expect(element.textContent).toBe('');
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expect(() => $injector.get(INJECTOR_KEY)).toThrowError();
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$rootScope.$apply('loadNg2 = true');
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expect(element.textContent).toBe('');
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expect(() => $injector.get(INJECTOR_KEY)).toThrowError();
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// Wait for the module to be bootstrapped.
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setTimeout(() => {
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expect(() => $injector.get(INJECTOR_KEY)).not.toThrow();
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// Wait for `$evalAsync()` to propagate inputs.
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setTimeout(() => expect(element.textContent).toBe('foo-bar'));
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});
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}));
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it('should create components inside the Angular zone', async(() => {
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@Component({selector: 'ng2', template: 'In the zone: {{ inTheZone }}'})
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class Ng2Component {
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private inTheZone = false;
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constructor() { this.inTheZone = NgZone.isInAngularZone(); }
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}
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@NgModule({
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declarations: [Ng2Component],
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entryComponents: [Ng2Component],
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imports: [BrowserModule],
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})
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class Ng2Module {
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ngDoBootstrap() {}
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}
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const bootstrapFn = (extraProviders: StaticProvider[]) =>
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platformBrowserDynamic(extraProviders).bootstrapModule(Ng2Module);
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const lazyModuleName = downgradeModule<Ng2Module>(bootstrapFn);
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const ng1Module =
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angular.module('ng1', [lazyModuleName])
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.directive(
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'ng2', downgradeComponent({component: Ng2Component, propagateDigest}));
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const element = html('<ng2></ng2>');
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angular.bootstrap(element, [ng1Module.name]);
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// Wait for the module to be bootstrapped.
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setTimeout(() => {
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// Wait for `$evalAsync()` to propagate inputs.
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setTimeout(() => expect(element.textContent).toBe('In the zone: true'));
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});
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}));
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it('should destroy components inside the Angular zone', async(() => {
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let destroyedInTheZone = false;
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@Component({selector: 'ng2', template: ''})
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class Ng2Component implements OnDestroy {
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ngOnDestroy() { destroyedInTheZone = NgZone.isInAngularZone(); }
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}
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@NgModule({
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declarations: [Ng2Component],
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entryComponents: [Ng2Component],
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imports: [BrowserModule],
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})
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class Ng2Module {
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ngDoBootstrap() {}
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}
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const bootstrapFn = (extraProviders: StaticProvider[]) =>
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platformBrowserDynamic(extraProviders).bootstrapModule(Ng2Module);
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const lazyModuleName = downgradeModule<Ng2Module>(bootstrapFn);
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const ng1Module =
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angular.module('ng1', [lazyModuleName])
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.directive(
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'ng2', downgradeComponent({component: Ng2Component, propagateDigest}));
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const element = html('<ng2 ng-if="!hideNg2"></ng2>');
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const $injector = angular.bootstrap(element, [ng1Module.name]);
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const $rootScope = $injector.get($ROOT_SCOPE) as angular.IRootScopeService;
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// Wait for the module to be bootstrapped.
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setTimeout(() => {
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$rootScope.$apply('hideNg2 = true');
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expect(destroyedInTheZone).toBe(true);
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});
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}));
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it('should propagate input changes inside the Angular zone', async(() => {
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let ng2Component: Ng2Component;
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@Component({selector: 'ng2', template: ''})
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class Ng2Component implements OnChanges {
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@Input() attrInput = 'foo';
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@Input() propInput = 'foo';
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constructor() { ng2Component = this; }
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ngOnChanges() {}
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}
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@NgModule({
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declarations: [Ng2Component],
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entryComponents: [Ng2Component],
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imports: [BrowserModule],
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})
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class Ng2Module {
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ngDoBootstrap() {}
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}
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const bootstrapFn = (extraProviders: StaticProvider[]) =>
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platformBrowserDynamic(extraProviders).bootstrapModule(Ng2Module);
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const lazyModuleName = downgradeModule<Ng2Module>(bootstrapFn);
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const ng1Module =
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angular.module('ng1', [lazyModuleName])
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.directive('ng2', downgradeComponent({component: Ng2Component, propagateDigest}))
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.run(($rootScope: angular.IRootScopeService) => {
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$rootScope.attrVal = 'bar';
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$rootScope.propVal = 'bar';
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});
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const element = html('<ng2 attr-input="{{ attrVal }}" [prop-input]="propVal"></ng2>');
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const $injector = angular.bootstrap(element, [ng1Module.name]);
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const $rootScope = $injector.get($ROOT_SCOPE) as angular.IRootScopeService;
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setTimeout(() => { // Wait for the module to be bootstrapped.
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setTimeout(() => { // Wait for `$evalAsync()` to propagate inputs.
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const expectToBeInNgZone = () => expect(NgZone.isInAngularZone()).toBe(true);
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const changesSpy =
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spyOn(ng2Component, 'ngOnChanges').and.callFake(expectToBeInNgZone);
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expect(ng2Component.attrInput).toBe('bar');
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expect(ng2Component.propInput).toBe('bar');
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$rootScope.$apply('attrVal = "baz"');
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expect(ng2Component.attrInput).toBe('baz');
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expect(ng2Component.propInput).toBe('bar');
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expect(changesSpy).toHaveBeenCalledTimes(1);
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$rootScope.$apply('propVal = "qux"');
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expect(ng2Component.attrInput).toBe('baz');
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expect(ng2Component.propInput).toBe('qux');
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expect(changesSpy).toHaveBeenCalledTimes(2);
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});
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});
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}));
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it('should wire up the component for change detection', async(() => {
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@Component(
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{selector: 'ng2', template: '{{ count }}<button (click)="increment()"></button>'})
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class Ng2Component {
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private count = 0;
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increment() { ++this.count; }
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}
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@NgModule({
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declarations: [Ng2Component],
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entryComponents: [Ng2Component],
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imports: [BrowserModule],
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})
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class Ng2Module {
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ngDoBootstrap() {}
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}
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const bootstrapFn = (extraProviders: StaticProvider[]) =>
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platformBrowserDynamic(extraProviders).bootstrapModule(Ng2Module);
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const lazyModuleName = downgradeModule<Ng2Module>(bootstrapFn);
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const ng1Module =
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angular.module('ng1', [lazyModuleName])
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.directive(
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'ng2', downgradeComponent({component: Ng2Component, propagateDigest}));
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const element = html('<ng2></ng2>');
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angular.bootstrap(element, [ng1Module.name]);
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setTimeout(() => { // Wait for the module to be bootstrapped.
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setTimeout(() => { // Wait for `$evalAsync()` to propagate inputs.
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const button = element.querySelector('button') !;
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expect(element.textContent).toBe('0');
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button.click();
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expect(element.textContent).toBe('1');
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button.click();
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expect(element.textContent).toBe('2');
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});
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});
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}));
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it('should run the lifecycle hooks in the correct order', async(() => {
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const logs: string[] = [];
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let rootScope: angular.IRootScopeService;
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@Component({
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selector: 'ng2',
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template: `
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{{ value }}
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<button (click)="value = 'qux'"></button>
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<ng-content></ng-content>
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`
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})
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class Ng2Component implements AfterContentChecked,
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AfterContentInit, AfterViewChecked, AfterViewInit, DoCheck, OnChanges, OnDestroy,
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OnInit {
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@Input() value = 'foo';
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ngAfterContentChecked() { this.log('AfterContentChecked'); }
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ngAfterContentInit() { this.log('AfterContentInit'); }
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ngAfterViewChecked() { this.log('AfterViewChecked'); }
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ngAfterViewInit() { this.log('AfterViewInit'); }
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ngDoCheck() { this.log('DoCheck'); }
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ngOnChanges() { this.log('OnChanges'); }
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ngOnDestroy() { this.log('OnDestroy'); }
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ngOnInit() { this.log('OnInit'); }
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private log(hook: string) { logs.push(`${hook}(${this.value})`); }
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}
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@NgModule({
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declarations: [Ng2Component],
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entryComponents: [Ng2Component],
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imports: [BrowserModule],
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})
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class Ng2Module {
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ngDoBootstrap() {}
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}
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const bootstrapFn = (extraProviders: StaticProvider[]) =>
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platformBrowserDynamic(extraProviders).bootstrapModule(Ng2Module);
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const lazyModuleName = downgradeModule<Ng2Module>(bootstrapFn);
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const ng1Module =
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angular.module('ng1', [lazyModuleName])
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.directive('ng2', downgradeComponent({component: Ng2Component, propagateDigest}))
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.run(($rootScope: angular.IRootScopeService) => {
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rootScope = $rootScope;
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rootScope.value = 'bar';
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});
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const element =
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html('<div><ng2 value="{{ value }}" ng-if="!hideNg2">Content</ng2></div>');
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angular.bootstrap(element, [ng1Module.name]);
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setTimeout(() => { // Wait for the module to be bootstrapped.
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setTimeout(() => { // Wait for `$evalAsync()` to propagate inputs.
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const button = element.querySelector('button') !;
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// Once initialized.
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expect(multiTrim(element.textContent)).toBe('bar Content');
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expect(logs).toEqual([
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// `ngOnChanges()` call triggered directly through the `inputChanges` $watcher.
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'OnChanges(bar)',
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// Initial CD triggered directly through the `detectChanges()` or `inputChanges`
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// $watcher (for `propagateDigest` true/false respectively).
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'OnInit(bar)',
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'DoCheck(bar)',
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'AfterContentInit(bar)',
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'AfterContentChecked(bar)',
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'AfterViewInit(bar)',
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'AfterViewChecked(bar)',
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...(propagateDigest ?
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[
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// CD triggered directly through the `detectChanges()` $watcher (2nd
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// $digest).
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'DoCheck(bar)',
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'AfterContentChecked(bar)',
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'AfterViewChecked(bar)',
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] :
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[]),
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// CD triggered due to entering/leaving the NgZone (in `downgradeFn()`).
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'DoCheck(bar)',
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'AfterContentChecked(bar)',
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'AfterViewChecked(bar)',
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]);
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logs.length = 0;
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// Change inputs and run `$digest`.
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rootScope.$apply('value = "baz"');
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expect(multiTrim(element.textContent)).toBe('baz Content');
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expect(logs).toEqual([
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// `ngOnChanges()` call triggered directly through the `inputChanges` $watcher.
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'OnChanges(baz)',
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// `propagateDigest: true` (3 CD runs):
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// - CD triggered due to entering/leaving the NgZone (in `inputChanges`
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// $watcher).
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// - CD triggered directly through the `detectChanges()` $watcher.
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// - CD triggered due to entering/leaving the NgZone (in `detectChanges`
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// $watcher).
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// `propagateDigest: false` (2 CD runs):
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// - CD triggered directly through the `inputChanges` $watcher.
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// - CD triggered due to entering/leaving the NgZone (in `inputChanges`
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// $watcher).
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'DoCheck(baz)',
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'AfterContentChecked(baz)',
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'AfterViewChecked(baz)',
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'DoCheck(baz)',
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'AfterContentChecked(baz)',
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'AfterViewChecked(baz)',
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...(propagateDigest ?
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[
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'DoCheck(baz)',
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'AfterContentChecked(baz)',
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'AfterViewChecked(baz)',
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] :
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[]),
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]);
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logs.length = 0;
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// Run `$digest` (without changing inputs).
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rootScope.$digest();
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expect(multiTrim(element.textContent)).toBe('baz Content');
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expect(logs).toEqual(
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propagateDigest ?
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[
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// CD triggered directly through the `detectChanges()` $watcher.
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'DoCheck(baz)',
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'AfterContentChecked(baz)',
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'AfterViewChecked(baz)',
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// CD triggered due to entering/leaving the NgZone (in the above $watcher).
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'DoCheck(baz)',
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'AfterContentChecked(baz)',
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'AfterViewChecked(baz)',
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] :
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[]);
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logs.length = 0;
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// Trigger change detection (without changing inputs).
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button.click();
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expect(multiTrim(element.textContent)).toBe('qux Content');
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expect(logs).toEqual([
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'DoCheck(qux)',
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'AfterContentChecked(qux)',
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'AfterViewChecked(qux)',
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]);
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logs.length = 0;
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// Destroy the component.
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rootScope.$apply('hideNg2 = true');
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expect(logs).toEqual([
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'OnDestroy(qux)',
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]);
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logs.length = 0;
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});
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});
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}));
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it('should detach hostViews from the ApplicationRef once destroyed', async(() => {
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let ng2Component: Ng2Component;
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@Component({selector: 'ng2', template: ''})
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class Ng2Component {
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constructor(public appRef: ApplicationRef) {
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ng2Component = this;
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spyOn(appRef, 'attachView').and.callThrough();
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spyOn(appRef, 'detachView').and.callThrough();
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}
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}
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@NgModule({
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declarations: [Ng2Component],
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entryComponents: [Ng2Component],
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imports: [BrowserModule],
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})
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class Ng2Module {
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ngDoBootstrap() {}
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}
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const bootstrapFn = (extraProviders: StaticProvider[]) =>
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platformBrowserDynamic(extraProviders).bootstrapModule(Ng2Module);
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const lazyModuleName = downgradeModule<Ng2Module>(bootstrapFn);
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const ng1Module =
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angular.module('ng1', [lazyModuleName])
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.directive(
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'ng2', downgradeComponent({component: Ng2Component, propagateDigest}));
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const element = html('<ng2 ng-if="!hideNg2"></ng2>');
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const $injector = angular.bootstrap(element, [ng1Module.name]);
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const $rootScope = $injector.get($ROOT_SCOPE) as angular.IRootScopeService;
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|
|
setTimeout(() => { // Wait for the module to be bootstrapped.
|
|
setTimeout(() => { // Wait for the hostView to be attached (during the `$digest`).
|
|
const hostView: ViewRef =
|
|
(ng2Component.appRef.attachView as jasmine.Spy).calls.mostRecent().args[0];
|
|
|
|
expect(hostView.destroyed).toBe(false);
|
|
|
|
$rootScope.$apply('hideNg2 = true');
|
|
|
|
expect(hostView.destroyed).toBe(true);
|
|
expect(ng2Component.appRef.detachView).toHaveBeenCalledWith(hostView);
|
|
});
|
|
});
|
|
}));
|
|
|
|
it('should only retrieve the Angular zone once (and cache it for later use)',
|
|
fakeAsync(() => {
|
|
let count = 0;
|
|
let getNgZoneCount = 0;
|
|
|
|
@Component(
|
|
{selector: 'ng2', template: 'Count: {{ count }} | In the zone: {{ inTheZone }}'})
|
|
class Ng2Component {
|
|
private count = ++count;
|
|
private inTheZone = false;
|
|
constructor() { this.inTheZone = NgZone.isInAngularZone(); }
|
|
}
|
|
|
|
@NgModule({
|
|
declarations: [Ng2Component],
|
|
entryComponents: [Ng2Component],
|
|
imports: [BrowserModule],
|
|
})
|
|
class Ng2Module {
|
|
constructor(injector: Injector) {
|
|
const originalGet = injector.get;
|
|
injector.get = function(token: any) {
|
|
if (token === NgZone) ++getNgZoneCount;
|
|
return originalGet.apply(injector, arguments);
|
|
};
|
|
}
|
|
ngDoBootstrap() {}
|
|
}
|
|
|
|
const tickDelay = browserDetection.isIE ? 100 : 0;
|
|
const bootstrapFn = (extraProviders: StaticProvider[]) =>
|
|
platformBrowserDynamic(extraProviders).bootstrapModule(Ng2Module);
|
|
const lazyModuleName = downgradeModule<Ng2Module>(bootstrapFn);
|
|
const ng1Module =
|
|
angular.module('ng1', [lazyModuleName])
|
|
.directive(
|
|
'ng2', downgradeComponent({component: Ng2Component, propagateDigest}));
|
|
|
|
const element = html('<div><ng2 ng-if="showNg2"></ng2></div>');
|
|
const $injector = angular.bootstrap(element, [ng1Module.name]);
|
|
const $rootScope = $injector.get($ROOT_SCOPE) as angular.IRootScopeService;
|
|
|
|
$rootScope.$apply('showNg2 = true');
|
|
tick(tickDelay); // Wait for the module to be bootstrapped and `$evalAsync()` to
|
|
// propagate inputs.
|
|
|
|
const injector = ($injector.get(LAZY_MODULE_REF) as LazyModuleRef).injector !;
|
|
const injectorGet = injector.get;
|
|
spyOn(injector, 'get').and.callFake((...args: any[]) => {
|
|
expect(args[0]).not.toBe(NgZone);
|
|
return injectorGet.apply(injector, args);
|
|
});
|
|
|
|
expect(element.textContent).toBe('Count: 1 | In the zone: true');
|
|
|
|
$rootScope.$apply('showNg2 = false');
|
|
expect(element.textContent).toBe('');
|
|
|
|
$rootScope.$apply('showNg2 = true');
|
|
tick(tickDelay); // Wait for `$evalAsync()` to propagate inputs.
|
|
expect(element.textContent).toBe('Count: 2 | In the zone: true');
|
|
|
|
$rootScope.$destroy();
|
|
}));
|
|
|
|
it('should give access to both injectors in the Angular module\'s constructor', async(() => {
|
|
let $injectorFromNg2: angular.IInjectorService|null = null;
|
|
|
|
@Component({selector: 'ng2', template: ''})
|
|
class Ng2Component {
|
|
}
|
|
|
|
@NgModule({
|
|
declarations: [Ng2Component],
|
|
entryComponents: [Ng2Component],
|
|
imports: [BrowserModule],
|
|
})
|
|
class Ng2Module {
|
|
constructor(injector: Injector) {
|
|
$injectorFromNg2 = injector.get<angular.IInjectorService>('$injector' as any);
|
|
}
|
|
|
|
ngDoBootstrap() {}
|
|
}
|
|
|
|
const bootstrapFn = (extraProviders: StaticProvider[]) =>
|
|
platformBrowserDynamic(extraProviders).bootstrapModule(Ng2Module);
|
|
const lazyModuleName = downgradeModule<Ng2Module>(bootstrapFn);
|
|
const ng1Module =
|
|
angular.module('ng1', [lazyModuleName])
|
|
.directive(
|
|
'ng2', downgradeComponent({component: Ng2Component, propagateDigest}));
|
|
|
|
const element = html('<ng2></ng2>');
|
|
const $injectorFromNg1 = angular.bootstrap(element, [ng1Module.name]);
|
|
|
|
// Wait for the module to be bootstrapped.
|
|
setTimeout(() => expect($injectorFromNg2).toBe($injectorFromNg1));
|
|
}));
|
|
});
|
|
});
|
|
});
|