82 lines
2.3 KiB
TypeScript
82 lines
2.3 KiB
TypeScript
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/**
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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 {extractProjectableNodes} from '../src/extract-projectable-nodes';
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describe('extractProjectableNodes()', () => {
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let elem: HTMLElement;
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let childNodes: NodeList;
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const expectProjectableNodes = (matches: {[selector: string]: number[]}) => {
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const selectors = Object.keys(matches);
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const expected = selectors.map(selector => {
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const matchingIndices = matches[selector];
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return matchingIndices.map(idx => childNodes[idx]);
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});
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expect(extractProjectableNodes(elem, selectors)).toEqual(expected);
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};
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const test = (matches: {[selector: string]: number[]}) => () => expectProjectableNodes(matches);
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beforeEach(() => {
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elem = document.createElement('div');
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elem.innerHTML = '<div class="foo" first="">' +
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'<span class="bar"></span>' +
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'</div>' +
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'<span id="bar"></span>' +
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'<!-- Comment -->' +
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'Text' +
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'<blink class="foo" id="quux"></blink>' +
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'More text';
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childNodes = Array.prototype.slice.call(elem.childNodes);
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});
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it('should match each node to the corresponding selector', test({
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'[first]': [0],
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'#bar': [1],
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'#quux': [4],
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}));
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it('should ignore non-matching nodes', test({
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'.zoo': [],
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}));
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it('should only match top-level child nodes', test({
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'span': [1],
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'.bar': [],
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}));
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it('should support complex selectors', test({
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'.foo:not(div)': [4],
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'div + #bar': [1],
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}));
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it('should match each node with the first matching selector', test({
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'div': [0],
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'.foo': [4],
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'blink': [],
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}));
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describe('(with wildcard selector)', () => {
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it('should match non-element nodes to `*` (but still ignore comments)', test({
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'div,span,blink': [0, 1, 4],
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'*': [2, 3, 5],
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}));
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it('should match otherwise unmatched nodes to `*`', test({
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'div,blink': [0, 4],
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'*': [1, 2, 3, 5],
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}));
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it('should give higher priority to `*` (eve if it appears first)', test({
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'*': [2, 3, 5],
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'div,span,blink': [0, 1, 4],
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}));
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});
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});
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