bb88c9fa3d
Some specialised browsers that do not support scroll restoration (e.g. some web crawlers) do not allow `scrollRestoration` to be writable. We already sniff the browser to see if it has the `window.scrollTo` method, so now we also check whether `window.history.scrollRestoration` is writable too. Fixes #30629 PR Close #30630
56 lines
1.8 KiB
TypeScript
56 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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/**
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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 {describe, expect, it} from '@angular/core/testing/src/testing_internal';
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import {BrowserViewportScroller, ViewportScroller} from '../src/viewport_scroller';
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{
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describe('BrowserViewportScroller', () => {
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let scroller: ViewportScroller;
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let documentSpy: any;
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let windowSpy: any;
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beforeEach(() => {
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windowSpy = jasmine.createSpyObj('window', ['history']);
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windowSpy.scrollTo = 1;
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windowSpy.history.scrollRestoration = 'auto';
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documentSpy = jasmine.createSpyObj('document', ['querySelector']);
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scroller = new BrowserViewportScroller(documentSpy, windowSpy, null!);
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});
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it('should not crash when scrollRestoration is not writable', () => {
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Object.defineProperty(windowSpy.history, 'scrollRestoration', {
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value: 'auto',
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configurable: true,
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});
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expect(() => scroller.setHistoryScrollRestoration('manual')).not.toThrow();
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});
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it('escapes invalid characters selectors', () => {
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const invalidSelectorChars = `"' :.[],=`;
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// Double escaped to make sure we match the actual value passed to `querySelector`
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const escapedInvalids = `\\"\\' \\:\\.\\[\\]\\,\\=`;
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scroller.scrollToAnchor(`specials=${invalidSelectorChars}`);
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expect(documentSpy.querySelector).toHaveBeenCalledWith(`#specials\\=${escapedInvalids}`);
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expect(documentSpy.querySelector)
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.toHaveBeenCalledWith(`[name='specials\\=${escapedInvalids}']`);
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});
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});
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}
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