407 lines
16 KiB
TypeScript
407 lines
16 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 {CssSelector, SelectorMatcher} from '@angular/compiler/src/selector';
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import {getDOM} from '@angular/platform-browser/src/dom/dom_adapter';
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import {el} from '@angular/platform-browser/testing/browser_util';
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export function main() {
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describe('SelectorMatcher', () => {
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let matcher: SelectorMatcher;
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let selectableCollector: (selector: CssSelector, context: any) => void;
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let s1: any[], s2: any[], s3: any[], s4: any[];
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let matched: any[];
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function reset() { matched = []; }
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beforeEach(() => {
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reset();
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s1 = s2 = s3 = s4 = null;
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selectableCollector =
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(selector: CssSelector, context: any) => { matched.push(selector, context); };
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matcher = new SelectorMatcher();
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});
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it('should select by element name case sensitive', () => {
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matcher.addSelectables(s1 = CssSelector.parse('someTag'), 1);
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expect(matcher.match(CssSelector.parse('SOMEOTHERTAG')[0], selectableCollector))
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.toEqual(false);
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expect(matched).toEqual([]);
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expect(matcher.match(CssSelector.parse('SOMETAG')[0], selectableCollector)).toEqual(false);
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expect(matched).toEqual([]);
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expect(matcher.match(CssSelector.parse('someTag')[0], selectableCollector)).toEqual(true);
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expect(matched).toEqual([s1[0], 1]);
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});
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it('should select by class name case insensitive', () => {
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matcher.addSelectables(s1 = CssSelector.parse('.someClass'), 1);
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matcher.addSelectables(s2 = CssSelector.parse('.someClass.class2'), 2);
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expect(matcher.match(CssSelector.parse('.SOMEOTHERCLASS')[0], selectableCollector))
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.toEqual(false);
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expect(matched).toEqual([]);
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expect(matcher.match(CssSelector.parse('.SOMECLASS')[0], selectableCollector)).toEqual(true);
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expect(matched).toEqual([s1[0], 1]);
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reset();
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expect(matcher.match(CssSelector.parse('.someClass.class2')[0], selectableCollector))
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.toEqual(true);
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expect(matched).toEqual([s1[0], 1, s2[0], 2]);
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});
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it('should not throw for class name "constructor"', () => {
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expect(matcher.match(CssSelector.parse('.constructor')[0], selectableCollector))
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.toEqual(false);
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expect(matched).toEqual([]);
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});
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it('should select by attr name case sensitive independent of the value', () => {
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matcher.addSelectables(s1 = CssSelector.parse('[someAttr]'), 1);
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matcher.addSelectables(s2 = CssSelector.parse('[someAttr][someAttr2]'), 2);
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expect(matcher.match(CssSelector.parse('[SOMEOTHERATTR]')[0], selectableCollector))
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.toEqual(false);
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expect(matched).toEqual([]);
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expect(matcher.match(CssSelector.parse('[SOMEATTR]')[0], selectableCollector)).toEqual(false);
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expect(matched).toEqual([]);
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expect(matcher.match(CssSelector.parse('[SOMEATTR=someValue]')[0], selectableCollector))
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.toEqual(false);
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expect(matched).toEqual([]);
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expect(matcher.match(CssSelector.parse('[someAttr][someAttr2]')[0], selectableCollector))
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.toEqual(true);
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expect(matched).toEqual([s1[0], 1, s2[0], 2]);
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reset();
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expect(matcher.match(
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CssSelector.parse('[someAttr=someValue][someAttr2]')[0], selectableCollector))
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.toEqual(true);
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expect(matched).toEqual([s1[0], 1, s2[0], 2]);
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reset();
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expect(matcher.match(
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CssSelector.parse('[someAttr2][someAttr=someValue]')[0], selectableCollector))
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.toEqual(true);
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expect(matched).toEqual([s1[0], 1, s2[0], 2]);
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reset();
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expect(matcher.match(
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CssSelector.parse('[someAttr2=someValue][someAttr]')[0], selectableCollector))
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.toEqual(true);
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expect(matched).toEqual([s1[0], 1, s2[0], 2]);
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});
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it('should support "." in attribute names', () => {
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matcher.addSelectables(s1 = CssSelector.parse('[foo.bar]'), 1);
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expect(matcher.match(CssSelector.parse('[barfoo]')[0], selectableCollector)).toEqual(false);
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expect(matched).toEqual([]);
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reset();
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expect(matcher.match(CssSelector.parse('[foo.bar]')[0], selectableCollector)).toEqual(true);
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expect(matched).toEqual([s1[0], 1]);
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});
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it('should select by attr name only once if the value is from the DOM', () => {
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matcher.addSelectables(s1 = CssSelector.parse('[some-decor]'), 1);
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const elementSelector = new CssSelector();
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const element = el('<div attr></div>');
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const empty = getDOM().getAttribute(element, 'attr');
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elementSelector.addAttribute('some-decor', empty);
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matcher.match(elementSelector, selectableCollector);
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expect(matched).toEqual([s1[0], 1]);
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});
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it('should select by attr name case sensitive and value case insensitive', () => {
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matcher.addSelectables(s1 = CssSelector.parse('[someAttr=someValue]'), 1);
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expect(matcher.match(CssSelector.parse('[SOMEATTR=SOMEOTHERATTR]')[0], selectableCollector))
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.toEqual(false);
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expect(matched).toEqual([]);
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expect(matcher.match(CssSelector.parse('[SOMEATTR=SOMEVALUE]')[0], selectableCollector))
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.toEqual(false);
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expect(matched).toEqual([]);
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expect(matcher.match(CssSelector.parse('[someAttr=SOMEVALUE]')[0], selectableCollector))
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.toEqual(true);
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expect(matched).toEqual([s1[0], 1]);
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});
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it('should select by element name, class name and attribute name with value', () => {
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matcher.addSelectables(s1 = CssSelector.parse('someTag.someClass[someAttr=someValue]'), 1);
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expect(matcher.match(
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CssSelector.parse('someOtherTag.someOtherClass[someOtherAttr]')[0],
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selectableCollector))
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.toEqual(false);
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expect(matched).toEqual([]);
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expect(
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matcher.match(
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CssSelector.parse('someTag.someOtherClass[someOtherAttr]')[0], selectableCollector))
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.toEqual(false);
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expect(matched).toEqual([]);
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expect(matcher.match(
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CssSelector.parse('someTag.someClass[someOtherAttr]')[0], selectableCollector))
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.toEqual(false);
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expect(matched).toEqual([]);
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expect(
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matcher.match(CssSelector.parse('someTag.someClass[someAttr]')[0], selectableCollector))
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.toEqual(false);
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expect(matched).toEqual([]);
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expect(
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matcher.match(
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CssSelector.parse('someTag.someClass[someAttr=someValue]')[0], selectableCollector))
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.toEqual(true);
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expect(matched).toEqual([s1[0], 1]);
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});
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it('should select by many attributes and independent of the value', () => {
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matcher.addSelectables(s1 = CssSelector.parse('input[type=text][control]'), 1);
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const cssSelector = new CssSelector();
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cssSelector.setElement('input');
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cssSelector.addAttribute('type', 'text');
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cssSelector.addAttribute('control', 'one');
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expect(matcher.match(cssSelector, selectableCollector)).toEqual(true);
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expect(matched).toEqual([s1[0], 1]);
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});
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it('should select independent of the order in the css selector', () => {
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matcher.addSelectables(s1 = CssSelector.parse('[someAttr].someClass'), 1);
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matcher.addSelectables(s2 = CssSelector.parse('.someClass[someAttr]'), 2);
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matcher.addSelectables(s3 = CssSelector.parse('.class1.class2'), 3);
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matcher.addSelectables(s4 = CssSelector.parse('.class2.class1'), 4);
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expect(matcher.match(CssSelector.parse('[someAttr].someClass')[0], selectableCollector))
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.toEqual(true);
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expect(matched).toEqual([s1[0], 1, s2[0], 2]);
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reset();
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expect(matcher.match(CssSelector.parse('.someClass[someAttr]')[0], selectableCollector))
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.toEqual(true);
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expect(matched).toEqual([s1[0], 1, s2[0], 2]);
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reset();
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expect(matcher.match(CssSelector.parse('.class1.class2')[0], selectableCollector))
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.toEqual(true);
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expect(matched).toEqual([s3[0], 3, s4[0], 4]);
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reset();
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expect(matcher.match(CssSelector.parse('.class2.class1')[0], selectableCollector))
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.toEqual(true);
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expect(matched).toEqual([s4[0], 4, s3[0], 3]);
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});
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it('should not select with a matching :not selector', () => {
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matcher.addSelectables(CssSelector.parse('p:not(.someClass)'), 1);
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matcher.addSelectables(CssSelector.parse('p:not([someAttr])'), 2);
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matcher.addSelectables(CssSelector.parse(':not(.someClass)'), 3);
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matcher.addSelectables(CssSelector.parse(':not(p)'), 4);
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matcher.addSelectables(CssSelector.parse(':not(p[someAttr])'), 5);
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expect(matcher.match(CssSelector.parse('p.someClass[someAttr]')[0], selectableCollector))
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.toEqual(false);
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expect(matched).toEqual([]);
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});
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it('should select with a non matching :not selector', () => {
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matcher.addSelectables(s1 = CssSelector.parse('p:not(.someClass)'), 1);
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matcher.addSelectables(s2 = CssSelector.parse('p:not(.someOtherClass[someAttr])'), 2);
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matcher.addSelectables(s3 = CssSelector.parse(':not(.someClass)'), 3);
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matcher.addSelectables(s4 = CssSelector.parse(':not(.someOtherClass[someAttr])'), 4);
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expect(matcher.match(
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CssSelector.parse('p[someOtherAttr].someOtherClass')[0], selectableCollector))
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.toEqual(true);
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expect(matched).toEqual([s1[0], 1, s2[0], 2, s3[0], 3, s4[0], 4]);
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});
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it('should match * with :not selector', () => {
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matcher.addSelectables(CssSelector.parse(':not([a])'), 1);
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expect(matcher.match(CssSelector.parse('div')[0], () => {})).toEqual(true);
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});
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it('should match with multiple :not selectors', () => {
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matcher.addSelectables(s1 = CssSelector.parse('div:not([a]):not([b])'), 1);
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expect(matcher.match(CssSelector.parse('div[a]')[0], selectableCollector)).toBe(false);
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expect(matcher.match(CssSelector.parse('div[b]')[0], selectableCollector)).toBe(false);
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expect(matcher.match(CssSelector.parse('div[c]')[0], selectableCollector)).toBe(true);
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});
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it('should select with one match in a list', () => {
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matcher.addSelectables(s1 = CssSelector.parse('input[type=text], textbox'), 1);
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expect(matcher.match(CssSelector.parse('textbox')[0], selectableCollector)).toEqual(true);
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expect(matched).toEqual([s1[1], 1]);
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reset();
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expect(matcher.match(CssSelector.parse('input[type=text]')[0], selectableCollector))
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.toEqual(true);
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expect(matched).toEqual([s1[0], 1]);
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});
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it('should not select twice with two matches in a list', () => {
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matcher.addSelectables(s1 = CssSelector.parse('input, .someClass'), 1);
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expect(matcher.match(CssSelector.parse('input.someclass')[0], selectableCollector))
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.toEqual(true);
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expect(matched.length).toEqual(2);
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expect(matched).toEqual([s1[0], 1]);
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});
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});
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describe('CssSelector.parse', () => {
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it('should detect element names', () => {
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const cssSelector = CssSelector.parse('sometag')[0];
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expect(cssSelector.element).toEqual('sometag');
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expect(cssSelector.toString()).toEqual('sometag');
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});
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it('should detect class names', () => {
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const cssSelector = CssSelector.parse('.someClass')[0];
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expect(cssSelector.classNames).toEqual(['someclass']);
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expect(cssSelector.toString()).toEqual('.someclass');
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});
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it('should detect attr names', () => {
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const cssSelector = CssSelector.parse('[attrname]')[0];
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expect(cssSelector.attrs).toEqual(['attrname', '']);
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expect(cssSelector.toString()).toEqual('[attrname]');
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});
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it('should detect attr values', () => {
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const cssSelector = CssSelector.parse('[attrname=attrvalue]')[0];
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expect(cssSelector.attrs).toEqual(['attrname', 'attrvalue']);
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expect(cssSelector.toString()).toEqual('[attrname=attrvalue]');
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});
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it('should detect multiple parts', () => {
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const cssSelector = CssSelector.parse('sometag[attrname=attrvalue].someclass')[0];
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expect(cssSelector.element).toEqual('sometag');
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expect(cssSelector.attrs).toEqual(['attrname', 'attrvalue']);
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expect(cssSelector.classNames).toEqual(['someclass']);
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expect(cssSelector.toString()).toEqual('sometag.someclass[attrname=attrvalue]');
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});
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it('should detect multiple attributes', () => {
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const cssSelector = CssSelector.parse('input[type=text][control]')[0];
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expect(cssSelector.element).toEqual('input');
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expect(cssSelector.attrs).toEqual(['type', 'text', 'control', '']);
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expect(cssSelector.toString()).toEqual('input[type=text][control]');
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});
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it('should detect :not', () => {
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const cssSelector = CssSelector.parse('sometag:not([attrname=attrvalue].someclass)')[0];
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expect(cssSelector.element).toEqual('sometag');
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expect(cssSelector.attrs.length).toEqual(0);
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expect(cssSelector.classNames.length).toEqual(0);
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const notSelector = cssSelector.notSelectors[0];
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expect(notSelector.element).toEqual(null);
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expect(notSelector.attrs).toEqual(['attrname', 'attrvalue']);
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expect(notSelector.classNames).toEqual(['someclass']);
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expect(cssSelector.toString()).toEqual('sometag:not(.someclass[attrname=attrvalue])');
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});
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it('should detect :not without truthy', () => {
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const cssSelector = CssSelector.parse(':not([attrname=attrvalue].someclass)')[0];
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expect(cssSelector.element).toEqual('*');
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const notSelector = cssSelector.notSelectors[0];
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expect(notSelector.attrs).toEqual(['attrname', 'attrvalue']);
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expect(notSelector.classNames).toEqual(['someclass']);
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expect(cssSelector.toString()).toEqual('*:not(.someclass[attrname=attrvalue])');
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});
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it('should throw when nested :not', () => {
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expect(() => {
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CssSelector.parse('sometag:not(:not([attrname=attrvalue].someclass))')[0];
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}).toThrowError('Nesting :not is not allowed in a selector');
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});
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it('should throw when multiple selectors in :not', () => {
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expect(() => {
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CssSelector.parse('sometag:not(a,b)');
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}).toThrowError('Multiple selectors in :not are not supported');
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});
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it('should detect lists of selectors', () => {
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const cssSelectors = CssSelector.parse('.someclass,[attrname=attrvalue], sometag');
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expect(cssSelectors.length).toEqual(3);
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expect(cssSelectors[0].classNames).toEqual(['someclass']);
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expect(cssSelectors[1].attrs).toEqual(['attrname', 'attrvalue']);
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expect(cssSelectors[2].element).toEqual('sometag');
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});
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it('should detect lists of selectors with :not', () => {
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const cssSelectors =
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CssSelector.parse('input[type=text], :not(textarea), textbox:not(.special)');
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expect(cssSelectors.length).toEqual(3);
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expect(cssSelectors[0].element).toEqual('input');
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expect(cssSelectors[0].attrs).toEqual(['type', 'text']);
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expect(cssSelectors[1].element).toEqual('*');
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expect(cssSelectors[1].notSelectors[0].element).toEqual('textarea');
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expect(cssSelectors[2].element).toEqual('textbox');
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expect(cssSelectors[2].notSelectors[0].classNames).toEqual(['special']);
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});
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});
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describe('CssSelector.getMatchingElementTemplate', () => {
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it('should create an element with a tagName, classes, and attributes with the correct casing',
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() => {
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const selector = CssSelector.parse('Blink.neon.hotpink[Sweet][Dismissable=false]')[0];
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const template = selector.getMatchingElementTemplate();
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expect(template).toEqual('<Blink class="neon hotpink" Sweet Dismissable="false"></Blink>');
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});
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it('should create an element without a tag name', () => {
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const selector = CssSelector.parse('[fancy]')[0];
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const template = selector.getMatchingElementTemplate();
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expect(template).toEqual('<div fancy></div>');
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});
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it('should ignore :not selectors', () => {
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const selector = CssSelector.parse('grape:not(.red)')[0];
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const template = selector.getMatchingElementTemplate();
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expect(template).toEqual('<grape></grape>');
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});
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it('should support void tags', () => {
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const selector = CssSelector.parse('input[fancy]')[0];
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const template = selector.getMatchingElementTemplate();
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expect(template).toEqual('<input fancy/>');
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});
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});
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}
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