0c9596ae2b
Use a zone counting timeouts and microtasks to determine when a test is finished, instead of requiring the test writer to use injectAsync and return a promise. See #5322
374 lines
12 KiB
TypeScript
374 lines
12 KiB
TypeScript
import {
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it,
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iit,
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xit,
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describe,
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ddescribe,
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xdescribe,
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expect,
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tick,
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beforeEach,
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inject,
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beforeEachProviders,
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TestComponentBuilder
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} from 'angular2/testing';
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import {Injectable, bind} from 'angular2/core';
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import {NgIf} from 'angular2/common';
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import {Directive, Component, View, ViewMetadata} from 'angular2/core';
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import {PromiseWrapper} from 'angular2/src/facade/promise';
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import {XHR} from 'angular2/src/compiler/xhr';
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import {XHRImpl} from 'angular2/src/platform/browser/xhr_impl';
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// Services, and components for the tests.
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@Component({selector: 'child-comp'})
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@View({template: `<span>Original {{childBinding}}</span>`, directives: []})
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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'})
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@View({template: `<span>Mock</span>`})
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@Injectable()
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class MockChildComp {
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}
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@Component({selector: 'parent-comp'})
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@View({template: `Parent(<child-comp></child-comp>)`, directives: [ChildComp]})
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@Injectable()
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class ParentComp {
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}
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@Component({selector: 'my-if-comp'})
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@View({template: `MyIf(<span *ng-if="showMore">More</span>)`, directives: [NgIf]})
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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'})
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@View({template: `<span>ChildChild</span>`})
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@Injectable()
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class ChildChildComp {
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}
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@Component({selector: 'child-comp'})
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@View({
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template: `<span>Original {{childBinding}}(<child-child-comp></child-child-comp>)</span>`,
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directives: [ChildChildComp]
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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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@Component({selector: 'child-child-comp'})
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@View({template: `<span>ChildChild Mock</span>`})
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@Injectable()
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class MockChildChildComp {
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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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}
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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({selector: 'my-service-comp', providers: [FancyService]})
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@View({template: `injected value: {{fancyService.value}}`})
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class TestProvidersComp {
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constructor(private fancyService: FancyService) {}
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}
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@Component({selector: 'my-service-comp', viewProviders: [FancyService]})
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@View({template: `injected value: {{fancyService.value}}`})
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class TestViewProvidersComp {
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constructor(private fancyService: FancyService) {}
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}
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export function main() {
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describe('angular2 jasmine matchers', () => {
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describe('toHaveCssClass', () => {
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it('should assert that the CSS class is present', () => {
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var el = document.createElement('div');
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el.classList.add('matias');
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expect(el).toHaveCssClass('matias');
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});
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it('should assert that the CSS class is not present', () => {
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var el = document.createElement('div');
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el.classList.add('matias');
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expect(el).not.toHaveCssClass('fatias');
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});
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});
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describe('toHaveCssStyle', () => {
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it('should assert that the CSS style is present', () => {
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var el = document.createElement('div');
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expect(el).not.toHaveCssStyle('width');
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el.style.setProperty('width', '100px');
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expect(el).toHaveCssStyle('width');
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});
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it('should assert that the styles are matched against the element', () => {
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var el = document.createElement('div');
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expect(el).not.toHaveCssStyle({width: '100px', height: '555px'});
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el.style.setProperty('width', '100px');
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expect(el).toHaveCssStyle({width: '100px'});
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expect(el).not.toHaveCssStyle({width: '100px', height: '555px'});
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el.style.setProperty('height', '555px');
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expect(el).toHaveCssStyle({height: '555px'});
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expect(el).toHaveCssStyle({width: '100px', height: '555px'});
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});
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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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it('should run normal tests', () => { expect(true).toEqual(true); });
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it('should run normal async tests', (done) => {
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setTimeout(() => {
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expect(true).toEqual(true);
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done();
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}, 0);
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});
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it('provides a real XHR instance',
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inject([XHR], (xhr) => { expect(xhr).toBeAnInstanceOf(XHRImpl); }));
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describe('setting up Providers', () => {
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beforeEachProviders(() => [bind(FancyService).toValue(new FancyService())]);
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it('should use set up providers',
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inject([FancyService], (service) => { expect(service.value).toEqual('real value'); }));
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it('should wait until returned promises', inject([FancyService], (service) => {
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service.getAsyncValue().then((value) => { expect(value).toEqual('async value'); });
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}));
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describe('using beforeEach', () => {
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beforeEach(inject([FancyService],
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(service) => { service.value = 'value modified in beforeEach'; }));
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it('should use modified providers', inject([FancyService], (service) => {
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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(inject([FancyService], (service) => {
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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) => { expect(service.value).toEqual('async value'); }));
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});
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});
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});
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describe('errors', () => {
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var originalJasmineIt: any;
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var originalJasmineBeforeEach: any;
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var patchJasmineIt = () => {
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var deferred = PromiseWrapper.completer();
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originalJasmineIt = jasmine.getEnv().it;
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jasmine.getEnv().it = (description: string, fn) => {
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var done = () => { deferred.resolve() };
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(<any>done).fail = (err) => { deferred.reject(err) };
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fn(done);
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return null;
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};
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return deferred.promise;
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};
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var restoreJasmineIt = () => { jasmine.getEnv().it = originalJasmineIt; };
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var patchJasmineBeforeEach = () => {
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originalJasmineBeforeEach = jasmine.getEnv().beforeEach;
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jasmine.getEnv().beforeEach = (fn: any) => {
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var done = () => {};
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(<any>done).fail = (err) => { throw new Error(err) };
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fn(done);
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return null;
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}
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};
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var restoreJasmineBeforeEach =
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() => { jasmine.getEnv().beforeEach = originalJasmineBeforeEach; }
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it('should fail when an error occurs inside inject', (done) => {
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var itPromise = patchJasmineIt();
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it('throws an error', inject([], () => { throw new Error('foo'); }));
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itPromise.then(() => { done.fail('Expected function to throw, but it did not'); }, (err) => {
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expect(err.message).toEqual('foo');
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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 an asynchronous error is thrown', (done) => {
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var itPromise = patchJasmineIt();
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it('throws an async error',
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inject([], () => { setTimeout(() => { throw new Error('bar'); }, 0); }));
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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('bar');
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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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var itPromise = patchJasmineIt();
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it('should fail with an error from a promise', inject([], () => {
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var deferred = PromiseWrapper.completer();
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var p = deferred.promise.then(() => { expect(1).toEqual(2); });
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deferred.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).toEqual('baz');
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done();
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});
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restoreJasmineIt();
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});
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describe('using beforeEachProviders', () => {
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beforeEachProviders(() => [bind(FancyService).toValue(new FancyService())]);
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beforeEach(
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inject([FancyService], (service) => { expect(service.value).toEqual('real value'); }));
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describe('nested beforeEachProviders', () => {
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it('should fail when the injector has already been used', () => {
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expect(() => {
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patchJasmineBeforeEach();
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beforeEachProviders(() => [bind(FancyService).toValue(new FancyService())]);
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})
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.toThrowError('beforeEachProviders was called after the injector had been used ' +
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'in a beforeEach or it block. This invalidates the test injector');
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restoreJasmineBeforeEach();
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});
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});
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});
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});
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describe('test component builder', function() {
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it('should instantiate a component with valid DOM',
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inject([TestComponentBuilder], (tcb: TestComponentBuilder) => {
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tcb.createAsync(ChildComp).then((componentFixture) => {
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componentFixture.detectChanges();
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expect(componentFixture.debugElement.nativeElement).toHaveText('Original Child');
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});
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}));
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it('should allow changing members of the component',
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inject([TestComponentBuilder], (tcb: TestComponentBuilder) => {
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tcb.createAsync(MyIfComp).then((componentFixture) => {
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componentFixture.detectChanges();
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expect(componentFixture.debugElement.nativeElement).toHaveText('MyIf()');
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componentFixture.debugElement.componentInstance.showMore = true;
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componentFixture.detectChanges();
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expect(componentFixture.debugElement.nativeElement).toHaveText('MyIf(More)');
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});
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}));
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it('should override a template', inject([TestComponentBuilder], (tcb: TestComponentBuilder) => {
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tcb.overrideTemplate(MockChildComp, '<span>Mock</span>')
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.createAsync(MockChildComp)
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.then((componentFixture) => {
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componentFixture.detectChanges();
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expect(componentFixture.debugElement.nativeElement).toHaveText('Mock');
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});
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}));
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it('should override a view', inject([TestComponentBuilder], (tcb: TestComponentBuilder) => {
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tcb.overrideView(ChildComp,
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new ViewMetadata({template: '<span>Modified {{childBinding}}</span>'}))
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.createAsync(ChildComp)
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.then((componentFixture) => {
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componentFixture.detectChanges();
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expect(componentFixture.debugElement.nativeElement).toHaveText('Modified Child');
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});
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}));
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it('should override component dependencies',
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inject([TestComponentBuilder], (tcb: TestComponentBuilder) => {
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tcb.overrideDirective(ParentComp, ChildComp, MockChildComp)
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.createAsync(ParentComp)
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.then((componentFixture) => {
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componentFixture.detectChanges();
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expect(componentFixture.debugElement.nativeElement).toHaveText('Parent(Mock)');
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});
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}));
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it("should override child component's dependencies",
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inject([TestComponentBuilder], (tcb: TestComponentBuilder) => {
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tcb.overrideDirective(ParentComp, ChildComp, ChildWithChildComp)
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.overrideDirective(ChildWithChildComp, ChildChildComp, MockChildChildComp)
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.createAsync(ParentComp)
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.then((componentFixture) => {
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componentFixture.detectChanges();
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expect(componentFixture.debugElement.nativeElement)
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.toHaveText('Parent(Original Child(ChildChild Mock))');
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});
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}));
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it('should override a provider', inject([TestComponentBuilder], (tcb: TestComponentBuilder) => {
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tcb.overrideProviders(TestProvidersComp, [bind(FancyService).toClass(MockFancyService)])
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.createAsync(TestProvidersComp)
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.then((componentFixture) => {
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componentFixture.detectChanges();
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expect(componentFixture.debugElement.nativeElement)
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.toHaveText('injected value: mocked out value');
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});
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}));
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it('should override a viewProvider',
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inject([TestComponentBuilder], (tcb: TestComponentBuilder) => {
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tcb.overrideViewProviders(TestViewProvidersComp,
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[bind(FancyService).toClass(MockFancyService)])
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.createAsync(TestViewProvidersComp)
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.then((componentFixture) => {
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componentFixture.detectChanges();
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expect(componentFixture.debugElement.nativeElement)
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.toHaveText('injected value: mocked out value');
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});
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}));
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});
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}
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