596 lines
21 KiB
TypeScript
596 lines
21 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 {CompilerConfig, ResourceLoader} from '@angular/compiler';
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import {CUSTOM_ELEMENTS_SCHEMA, Component, Directive, Injectable, Input, NgModule, Pipe} from '@angular/core';
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import {TestBed, async, fakeAsync, inject, tick, withModule} from '@angular/core/testing';
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import {expect} from '@angular/platform-browser/testing/matchers';
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import {stringify} from '../src/facade/lang';
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// Services, and components for the tests.
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@Component({selector: 'child-comp', template: `<span>Original {{childBinding}}</span>`})
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@Injectable()
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class ChildComp {
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childBinding: string;
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constructor() { this.childBinding = 'Child'; }
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}
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@Component({selector: 'child-comp', template: `<span>Mock</span>`})
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@Injectable()
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class MockChildComp {
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}
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@Component({
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selector: 'parent-comp',
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template: `Parent(<child-comp></child-comp>)`,
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})
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@Injectable()
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class ParentComp {
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}
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@Component({selector: 'my-if-comp', template: `MyIf(<span *ngIf="showMore">More</span>)`})
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@Injectable()
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class MyIfComp {
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showMore: boolean = false;
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}
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@Component({selector: 'child-child-comp', template: `<span>ChildChild</span>`})
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@Injectable()
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class ChildChildComp {
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}
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@Component({
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selector: 'child-comp',
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template: `<span>Original {{childBinding}}(<child-child-comp></child-child-comp>)</span>`,
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})
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@Injectable()
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class ChildWithChildComp {
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childBinding: string;
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constructor() { this.childBinding = 'Child'; }
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}
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class FancyService {
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value: string = 'real value';
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getAsyncValue() { return Promise.resolve('async value'); }
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getTimeoutValue() {
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return new Promise<string>((resolve, reject) => setTimeout(() => resolve('timeout value'), 10));
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}
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}
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class MockFancyService extends FancyService {
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value: string = 'mocked out value';
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}
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@Component({
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selector: 'my-service-comp',
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providers: [FancyService],
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template: `injected value: {{fancyService.value}}`
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})
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class TestProvidersComp {
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constructor(private fancyService: FancyService) {}
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}
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@Component({
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selector: 'my-service-comp',
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viewProviders: [FancyService],
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template: `injected value: {{fancyService.value}}`
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})
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class TestViewProvidersComp {
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constructor(private fancyService: FancyService) {}
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}
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@Directive({selector: '[someDir]', host: {'[title]': 'someDir'}})
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class SomeDirective {
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@Input()
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someDir: string;
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}
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@Pipe({name: 'somePipe'})
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class SomePipe {
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transform(value: string) { return `transformed ${value}`; }
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}
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@Component({selector: 'comp', template: `<div [someDir]="'someValue' | somePipe"></div>`})
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class CompUsingModuleDirectiveAndPipe {
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}
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@NgModule()
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class SomeLibModule {
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}
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@Component({
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selector: 'comp',
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templateUrl: '/base/modules/@angular/platform-browser/test/static_assets/test.html'
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})
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class CompWithUrlTemplate {
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}
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export function main() {
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describe('public testing API', () => {
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describe('using the async helper', () => {
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let actuallyDone: boolean;
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beforeEach(() => actuallyDone = false);
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afterEach(() => expect(actuallyDone).toEqual(true));
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it('should run normal tests', () => actuallyDone = true);
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it('should run normal async tests', (done) => {
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setTimeout(() => {
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actuallyDone = true;
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done();
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}, 0);
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});
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it('should run async tests with tasks',
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async(() => setTimeout(() => actuallyDone = true, 0)));
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it('should run async tests with promises', async(() => {
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const p = new Promise((resolve, reject) => setTimeout(resolve, 10));
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p.then(() => actuallyDone = true);
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}));
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});
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describe('using the test injector with the inject helper', () => {
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describe('setting up Providers', () => {
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beforeEach(() => {
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TestBed.configureTestingModule(
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{providers: [{provide: FancyService, useValue: new FancyService()}]});
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it('should use set up providers', inject([FancyService], (service: FancyService) => {
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expect(service.value).toEqual('real value');
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}));
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it('should wait until returned promises',
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async(inject([FancyService], (service: FancyService) => {
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service.getAsyncValue().then((value) => expect(value).toEqual('async value'));
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service.getTimeoutValue().then((value) => expect(value).toEqual('timeout value'));
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})));
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it('should allow the use of fakeAsync',
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fakeAsync(inject([FancyService], (service: FancyService) => {
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let value: string;
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service.getAsyncValue().then((val) => value = val);
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tick();
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expect(value).toEqual('async value');
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})));
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it('should allow use of "done"', (done) => {
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inject([FancyService], (service: FancyService) => {
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let count = 0;
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let id = setInterval(() => {
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count++;
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if (count > 2) {
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clearInterval(id);
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done();
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}
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}, 5);
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})(); // inject needs to be invoked explicitly with ().
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});
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describe('using beforeEach', () => {
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beforeEach(inject([FancyService], (service: FancyService) => {
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service.value = 'value modified in beforeEach';
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}));
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it('should use modified providers', inject([FancyService], (service: FancyService) => {
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expect(service.value).toEqual('value modified in beforeEach');
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}));
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});
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describe('using async beforeEach', () => {
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beforeEach(async(inject([FancyService], (service: FancyService) => {
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service.getAsyncValue().then((value) => service.value = value);
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})));
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it('should use asynchronously modified value',
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inject([FancyService], (service: FancyService) => {
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expect(service.value).toEqual('async value');
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}));
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});
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});
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});
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});
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describe('using the test injector with modules', () => {
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let moduleConfig = {
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providers: [FancyService],
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imports: [SomeLibModule],
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declarations: [SomeDirective, SomePipe, CompUsingModuleDirectiveAndPipe],
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};
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describe('setting up a module', () => {
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beforeEach(() => TestBed.configureTestingModule(moduleConfig));
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it('should use set up providers', inject([FancyService], (service: FancyService) => {
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expect(service.value).toEqual('real value');
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}));
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it('should be able to create any declared components', () => {
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const compFixture = TestBed.createComponent(CompUsingModuleDirectiveAndPipe);
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expect(compFixture.componentInstance).toBeAnInstanceOf(CompUsingModuleDirectiveAndPipe);
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});
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it('should use set up directives and pipes', () => {
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const compFixture = TestBed.createComponent(CompUsingModuleDirectiveAndPipe);
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let el = compFixture.debugElement;
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compFixture.detectChanges();
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expect(el.children[0].properties['title']).toBe('transformed someValue');
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});
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it('should use set up imported modules',
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inject([SomeLibModule], (libModule: SomeLibModule) => {
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expect(libModule).toBeAnInstanceOf(SomeLibModule);
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}));
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describe('provided schemas', () => {
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@Component({template: '<some-element [someUnknownProp]="true"></some-element>'})
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class ComponentUsingInvalidProperty {
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}
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beforeEach(() => {
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TestBed.configureTestingModule(
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{schemas: [CUSTOM_ELEMENTS_SCHEMA], declarations: [ComponentUsingInvalidProperty]});
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});
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it('should not error on unknown bound properties on custom elements when using the CUSTOM_ELEMENTS_SCHEMA',
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() => {
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expect(TestBed.createComponent(ComponentUsingInvalidProperty).componentInstance)
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.toBeAnInstanceOf(ComponentUsingInvalidProperty);
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});
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});
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});
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describe('per test modules', () => {
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it('should use set up providers',
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withModule(moduleConfig).inject([FancyService], (service: FancyService) => {
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expect(service.value).toEqual('real value');
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}));
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it('should use set up directives and pipes', withModule(moduleConfig, () => {
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let compFixture = TestBed.createComponent(CompUsingModuleDirectiveAndPipe);
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let el = compFixture.debugElement;
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compFixture.detectChanges();
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expect(el.children[0].properties['title']).toBe('transformed someValue');
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}));
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it('should use set up library modules',
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withModule(moduleConfig).inject([SomeLibModule], (libModule: SomeLibModule) => {
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expect(libModule).toBeAnInstanceOf(SomeLibModule);
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}));
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});
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describe('components with template url', () => {
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beforeEach(async(() => {
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TestBed.configureTestingModule({declarations: [CompWithUrlTemplate]});
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TestBed.compileComponents();
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}));
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it('should allow to createSync components with templateUrl after explicit async compilation',
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() => {
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let fixture = TestBed.createComponent(CompWithUrlTemplate);
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expect(fixture.nativeElement).toHaveText('from external template\n');
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});
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});
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describe('overwriting metadata', () => {
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@Pipe({name: 'undefined'})
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class SomePipe {
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transform(value: string): string { return `transformed ${value}`; }
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}
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@Directive({selector: '[undefined]'})
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class SomeDirective {
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someProp = 'hello';
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}
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@Component({selector: 'comp', template: 'someText'})
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class SomeComponent {
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}
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@Component({selector: 'comp', template: 'someOtherText'})
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class SomeOtherComponent {
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}
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@NgModule({declarations: [SomeComponent, SomeDirective, SomePipe]})
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class SomeModule {
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}
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beforeEach(() => TestBed.configureTestingModule({imports: [SomeModule]}));
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describe('module', () => {
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beforeEach(() => {
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TestBed.overrideModule(SomeModule, {set: {declarations: [SomeOtherComponent]}});
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});
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it('should work', () => {
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expect(TestBed.createComponent(SomeOtherComponent).componentInstance)
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.toBeAnInstanceOf(SomeOtherComponent);
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});
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});
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describe('component', () => {
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beforeEach(() => {
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TestBed.overrideComponent(
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SomeComponent, {set: {selector: 'comp', template: 'newText'}});
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});
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it('should work', () => {
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expect(TestBed.createComponent(SomeComponent).nativeElement).toHaveText('newText');
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});
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});
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describe('directive', () => {
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beforeEach(() => {
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TestBed
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.overrideComponent(
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SomeComponent, {set: {selector: 'comp', template: `<div someDir></div>`}})
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.overrideDirective(
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SomeDirective, {set: {selector: '[someDir]', host: {'[title]': 'someProp'}}});
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});
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it('should work', () => {
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const compFixture = TestBed.createComponent(SomeComponent);
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compFixture.detectChanges();
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expect(compFixture.debugElement.children[0].properties['title']).toEqual('hello');
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});
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});
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describe('pipe', () => {
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beforeEach(() => {
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TestBed
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.overrideComponent(
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SomeComponent, {set: {selector: 'comp', template: `{{'hello' | somePipe}}`}})
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.overridePipe(SomePipe, {set: {name: 'somePipe'}});
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});
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it('should work', () => {
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const compFixture = TestBed.createComponent(SomeComponent);
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compFixture.detectChanges();
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expect(compFixture.nativeElement).toHaveText('transformed hello');
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});
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});
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});
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describe('setting up the compiler', () => {
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describe('providers', () => {
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beforeEach(() => {
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let resourceLoaderGet = jasmine.createSpy('resourceLoaderGet')
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.and.returnValue(Promise.resolve('Hello world!'));
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TestBed.configureTestingModule({declarations: [CompWithUrlTemplate]});
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TestBed.configureCompiler(
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{providers: [{provide: ResourceLoader, useValue: {get: resourceLoaderGet}}]});
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});
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it('should use set up providers', fakeAsync(() => {
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TestBed.compileComponents();
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tick();
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let compFixture = TestBed.createComponent(CompWithUrlTemplate);
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expect(compFixture.nativeElement).toHaveText('Hello world!');
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}));
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});
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describe('useJit true', () => {
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beforeEach(() => TestBed.configureCompiler({useJit: true}));
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it('should set the value into CompilerConfig',
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inject([CompilerConfig], (config: CompilerConfig) => {
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expect(config.useJit).toBe(true);
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}));
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});
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describe('useJit false', () => {
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beforeEach(() => TestBed.configureCompiler({useJit: false}));
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it('should set the value into CompilerConfig',
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inject([CompilerConfig], (config: CompilerConfig) => {
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expect(config.useJit).toBe(false);
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}));
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});
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});
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});
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describe('errors', () => {
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let originalJasmineIt: (description: string, func: () => void) => jasmine.Spec;
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let originalJasmineBeforeEach: (beforeEachFunction: () => void) => void;
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const patchJasmineIt = () => {
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let resolve: (result: any) => void;
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let reject: (error: any) => void;
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const promise = new Promise((res, rej) => {
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resolve = res;
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reject = rej;
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});
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originalJasmineIt = jasmine.getEnv().it;
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jasmine.getEnv().it = (description: string, fn: (done: DoneFn) => void) => {
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const done = <DoneFn>(() => resolve(null));
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done.fail = (err) => reject(err);
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fn(done);
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return null;
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};
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return promise;
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};
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const restoreJasmineIt = () => jasmine.getEnv().it = originalJasmineIt;
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const patchJasmineBeforeEach = () => {
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let resolve: (result: any) => void;
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let reject: (error: any) => void;
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const promise = new Promise((res, rej) => {
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resolve = res;
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reject = rej;
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});
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originalJasmineBeforeEach = jasmine.getEnv().beforeEach;
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jasmine.getEnv().beforeEach = (fn: (done: DoneFn) => void) => {
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const done = <DoneFn>(() => resolve(null));
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done.fail = (err) => reject(err);
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fn(done);
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};
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return promise;
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};
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const restoreJasmineBeforeEach = () => jasmine.getEnv().beforeEach =
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originalJasmineBeforeEach;
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it('should fail when an asynchronous error is thrown', (done) => {
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const itPromise = patchJasmineIt();
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const barError = new Error('bar');
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it('throws an async error',
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async(inject([], () => setTimeout(() => { throw barError; }, 0))));
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itPromise.then(() => done.fail('Expected test to fail, but it did not'), (err) => {
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expect(err).toEqual(barError);
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done();
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});
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restoreJasmineIt();
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});
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it('should fail when a returned promise is rejected', (done) => {
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const itPromise = patchJasmineIt();
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it('should fail with an error from a promise', async(inject([], () => {
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let reject: (error: any) => void;
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const promise = new Promise((_, rej) => reject = rej);
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const p = promise.then(() => expect(1).toEqual(2));
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reject('baz');
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return p;
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})));
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itPromise.then(() => done.fail('Expected test to fail, but it did not'), (err) => {
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expect(err.message).toEqual('Uncaught (in promise): baz');
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done();
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});
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restoreJasmineIt();
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});
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describe('components', () => {
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let resourceLoaderGet: jasmine.Spy;
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beforeEach(() => {
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resourceLoaderGet = jasmine.createSpy('resourceLoaderGet')
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.and.returnValue(Promise.resolve('Hello world!'));
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TestBed.configureCompiler(
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{providers: [{provide: ResourceLoader, useValue: {get: resourceLoaderGet}}]});
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});
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it('should report an error for declared components with templateUrl which never call TestBed.compileComponents',
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() => {
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const itPromise = patchJasmineIt();
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expect(
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() =>
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it('should fail', withModule(
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{declarations: [CompWithUrlTemplate]},
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() => TestBed.createComponent(CompWithUrlTemplate))))
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.toThrowError(
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`This test module uses the component ${stringify(CompWithUrlTemplate)} which is using a "templateUrl", but they were never compiled. ` +
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`Please call "TestBed.compileComponents" before your test.`);
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restoreJasmineIt();
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});
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});
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it('should error on unknown bound properties on custom elements by default', () => {
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@Component({template: '<some-element [someUnknownProp]="true"></some-element>'})
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class ComponentUsingInvalidProperty {
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}
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const itPromise = patchJasmineIt();
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expect(
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() => it(
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'should fail', withModule(
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{declarations: [ComponentUsingInvalidProperty]},
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() => TestBed.createComponent(ComponentUsingInvalidProperty))))
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.toThrowError(/Can't bind to 'someUnknownProp'/);
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restoreJasmineIt();
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});
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});
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describe('creating components', () => {
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beforeEach(() => {
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TestBed.configureTestingModule({
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declarations: [
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ChildComp,
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MyIfComp,
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ChildChildComp,
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ParentComp,
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TestProvidersComp,
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TestViewProvidersComp,
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]
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});
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});
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it('should instantiate a component with valid DOM', async(() => {
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const fixture = TestBed.createComponent(ChildComp);
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fixture.detectChanges();
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expect(fixture.nativeElement).toHaveText('Original Child');
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}));
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it('should allow changing members of the component', async(() => {
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const componentFixture = TestBed.createComponent(MyIfComp);
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componentFixture.detectChanges();
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expect(componentFixture.nativeElement).toHaveText('MyIf()');
|
|
|
|
componentFixture.componentInstance.showMore = true;
|
|
componentFixture.detectChanges();
|
|
expect(componentFixture.nativeElement).toHaveText('MyIf(More)');
|
|
}));
|
|
|
|
it('should override a template', async(() => {
|
|
TestBed.overrideComponent(ChildComp, {set: {template: '<span>Mock</span>'}});
|
|
let componentFixture = TestBed.createComponent(ChildComp);
|
|
componentFixture.detectChanges();
|
|
expect(componentFixture.nativeElement).toHaveText('Mock');
|
|
|
|
}));
|
|
|
|
it('should override a provider', async(() => {
|
|
TestBed.overrideComponent(
|
|
TestProvidersComp,
|
|
{set: {providers: [{provide: FancyService, useClass: MockFancyService}]}});
|
|
const componentFixture = TestBed.createComponent(TestProvidersComp);
|
|
componentFixture.detectChanges();
|
|
expect(componentFixture.nativeElement).toHaveText('injected value: mocked out value');
|
|
}));
|
|
|
|
|
|
it('should override a viewProvider', async(() => {
|
|
TestBed.overrideComponent(
|
|
TestViewProvidersComp,
|
|
{set: {viewProviders: [{provide: FancyService, useClass: MockFancyService}]}});
|
|
|
|
const componentFixture = TestBed.createComponent(TestViewProvidersComp);
|
|
componentFixture.detectChanges();
|
|
expect(componentFixture.nativeElement).toHaveText('injected value: mocked out value');
|
|
}));
|
|
});
|
|
describe('using alternate components', () => {
|
|
beforeEach(() => {
|
|
TestBed.configureTestingModule({
|
|
declarations: [
|
|
MockChildComp,
|
|
ParentComp,
|
|
]
|
|
});
|
|
});
|
|
|
|
it('should override component dependencies', async(() => {
|
|
|
|
let componentFixture = TestBed.createComponent(ParentComp);
|
|
componentFixture.detectChanges();
|
|
expect(componentFixture.nativeElement).toHaveText('Parent(Mock)');
|
|
}));
|
|
});
|
|
});
|
|
}
|