51 lines
1.4 KiB
TypeScript
51 lines
1.4 KiB
TypeScript
/**
|
|
* @license
|
|
* Copyright Google LLC All Rights Reserved.
|
|
*
|
|
* Use of this source code is governed by an MIT-style license that can be
|
|
* found in the LICENSE file at https://angular.io/license
|
|
*/
|
|
|
|
import {ɵgetDOM as getDOM} from '@angular/common';
|
|
import {ServerStylesHost} from '@angular/platform-server/src/styles_host';
|
|
|
|
|
|
(function() {
|
|
if (getDOM().supportsDOMEvents()) return; // NODE only
|
|
|
|
describe('ServerStylesHost', () => {
|
|
let ssh: ServerStylesHost;
|
|
let documentHead: Element;
|
|
beforeEach(() => {
|
|
const doc = getDOM().createHtmlDocument();
|
|
ssh = new ServerStylesHost(doc, '');
|
|
documentHead = doc.head;
|
|
doc.querySelector('title')?.remove();
|
|
});
|
|
|
|
it('should add existing styles', () => {
|
|
ssh.addStyles(['a {};']);
|
|
expect(documentHead.innerHTML).toEqual('<style>a {};</style>');
|
|
});
|
|
|
|
it('should add new styles to hosts', () => {
|
|
ssh.addStyles(['a {};']);
|
|
expect(documentHead.innerHTML).toEqual('<style>a {};</style>');
|
|
});
|
|
|
|
it('should add styles only once to hosts', () => {
|
|
ssh.addStyles(['a {};']);
|
|
ssh.addStyles(['a {};']);
|
|
expect(documentHead.innerHTML).toEqual('<style>a {};</style>');
|
|
});
|
|
|
|
it('should remove style nodes on destroy', () => {
|
|
ssh.addStyles(['a {};']);
|
|
expect(documentHead.innerHTML).toEqual('<style>a {};</style>');
|
|
|
|
ssh.ngOnDestroy();
|
|
expect(documentHead.innerHTML).toEqual('');
|
|
});
|
|
});
|
|
})();
|