56 lines
		
	
	
		
			1.7 KiB
		
	
	
	
		
			TypeScript
		
	
	
	
	
	
			
		
		
	
	
			56 lines
		
	
	
		
			1.7 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 {Injectable} from '@angular/core';
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import {TestBed} from '@angular/core/testing';
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import {BrowserModule, Title} from '@angular/platform-browser';
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import {getDOM} from '@angular/platform-browser/src/dom/dom_adapter';
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import {expect} from '@angular/platform-browser/testing/src/matchers';
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export function main() {
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  describe('title service', () => {
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    const doc = getDOM().createHtmlDocument();
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    const initialTitle = getDOM().getTitle(doc);
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    const titleService = new Title(doc);
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    afterEach(() => { getDOM().setTitle(doc, initialTitle); });
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    it('should allow reading initial title',
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       () => { expect(titleService.getTitle()).toEqual(initialTitle); });
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    it('should set a title on the injected document', () => {
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      titleService.setTitle('test title');
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      expect(getDOM().getTitle(doc)).toEqual('test title');
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      expect(titleService.getTitle()).toEqual('test title');
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    });
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    it('should reset title to empty string if title not provided', () => {
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      titleService.setTitle(null !);
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      expect(getDOM().getTitle(doc)).toEqual('');
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    });
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  });
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  describe('integration test', () => {
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    @Injectable()
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    class DependsOnTitle {
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      constructor(public title: Title) {}
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    }
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    beforeEach(() => {
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      TestBed.configureTestingModule({
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        imports: [BrowserModule],
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        providers: [DependsOnTitle],
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      });
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    });
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    it('should inject Title service when using BrowserModule',
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       () => { expect(TestBed.get(DependsOnTitle).title).toBeAnInstanceOf(Title); });
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  });
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}
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