d1ea1f4c7f
Update the license headers throughout the repository to reference Google LLC rather than Google Inc, for the required license headers. PR Close #37205
60 lines
1.8 KiB
TypeScript
60 lines
1.8 KiB
TypeScript
/**
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* @license
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* Copyright Google LLC 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 {ɵgetDOM as getDOM} from '@angular/common';
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import {beforeEach, describe, it} from '@angular/core/testing/src/testing_internal';
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import {DomSharedStylesHost} from '@angular/platform-browser/src/dom/shared_styles_host';
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import {expect} from '@angular/platform-browser/testing/src/matchers';
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{
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describe('DomSharedStylesHost', () => {
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let doc: Document;
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let ssh: DomSharedStylesHost;
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let someHost: Element;
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beforeEach(() => {
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doc = getDOM().createHtmlDocument();
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doc.title = '';
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ssh = new DomSharedStylesHost(doc);
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someHost = getDOM().createElement('div');
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});
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it('should add existing styles to new hosts', () => {
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ssh.addStyles(['a {};']);
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ssh.addHost(someHost);
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expect(someHost.innerHTML).toEqual('<style>a {};</style>');
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});
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it('should add new styles to hosts', () => {
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ssh.addHost(someHost);
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ssh.addStyles(['a {};']);
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expect(someHost.innerHTML).toEqual('<style>a {};</style>');
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});
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it('should add styles only once to hosts', () => {
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ssh.addStyles(['a {};']);
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ssh.addHost(someHost);
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ssh.addStyles(['a {};']);
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expect(someHost.innerHTML).toEqual('<style>a {};</style>');
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});
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it('should use the document head as default host', () => {
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ssh.addStyles(['a {};', 'b {};']);
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expect(doc.head).toHaveText('a {};b {};');
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});
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it('should remove style nodes on destroy', () => {
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ssh.addStyles(['a {};']);
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ssh.addHost(someHost);
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expect(someHost.innerHTML).toEqual('<style>a {};</style>');
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ssh.ngOnDestroy();
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expect(someHost.innerHTML).toEqual('');
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});
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});
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}
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