471 lines
20 KiB
TypeScript
471 lines
20 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 {CssRule, processRules, ShadowCss} from '@angular/compiler/src/shadow_css';
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import {normalizeCSS} from '@angular/platform-browser/testing/src/browser_util';
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{
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describe('ShadowCss', () => {
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function s(css: string, contentAttr: string, hostAttr: string = '') {
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const shadowCss = new ShadowCss();
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const shim = shadowCss.shimCssText(css, contentAttr, hostAttr);
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const nlRegexp = /\n/g;
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return normalizeCSS(shim.replace(nlRegexp, ''));
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}
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it('should handle empty string', () => {
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expect(s('', 'contenta')).toEqual('');
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});
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it('should add an attribute to every rule', () => {
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const css = 'one {color: red;}two {color: red;}';
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const expected = 'one[contenta] {color:red;}two[contenta] {color:red;}';
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expect(s(css, 'contenta')).toEqual(expected);
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});
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it('should handle invalid css', () => {
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const css = 'one {color: red;}garbage';
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const expected = 'one[contenta] {color:red;}garbage';
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expect(s(css, 'contenta')).toEqual(expected);
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});
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it('should add an attribute to every selector', () => {
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const css = 'one, two {color: red;}';
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const expected = 'one[contenta], two[contenta] {color:red;}';
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expect(s(css, 'contenta')).toEqual(expected);
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});
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it('should support newlines in the selector and content ', () => {
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const css = 'one, \ntwo {\ncolor: red;}';
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const expected = 'one[contenta], two[contenta] {color:red;}';
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expect(s(css, 'contenta')).toEqual(expected);
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});
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it('should handle media rules', () => {
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const css = '@media screen and (max-width:800px, max-height:100%) {div {font-size:50px;}}';
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const expected =
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'@media screen and (max-width:800px, max-height:100%) {div[contenta] {font-size:50px;}}';
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expect(s(css, 'contenta')).toEqual(expected);
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});
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it('should handle page rules', () => {
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const css = '@page {div {font-size:50px;}}';
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const expected = '@page {div[contenta] {font-size:50px;}}';
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expect(s(css, 'contenta')).toEqual(expected);
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});
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it('should handle document rules', () => {
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const css = '@document url(http://www.w3.org/) {div {font-size:50px;}}';
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const expected = '@document url(http://www.w3.org/) {div[contenta] {font-size:50px;}}';
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expect(s(css, 'contenta')).toEqual(expected);
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});
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it('should handle media rules with simple rules', () => {
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const css = '@media screen and (max-width: 800px) {div {font-size: 50px;}} div {}';
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const expected =
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'@media screen and (max-width:800px) {div[contenta] {font-size:50px;}} div[contenta] {}';
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expect(s(css, 'contenta')).toEqual(expected);
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});
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it('should handle support rules', () => {
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const css = '@supports (display: flex) {section {display: flex;}}';
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const expected = '@supports (display:flex) {section[contenta] {display:flex;}}';
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expect(s(css, 'contenta')).toEqual(expected);
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});
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// Check that the browser supports unprefixed CSS animation
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it('should handle keyframes rules', () => {
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const css = '@keyframes foo {0% {transform:translate(-50%) scaleX(0);}}';
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expect(s(css, 'contenta')).toEqual(css);
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});
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it('should handle -webkit-keyframes rules', () => {
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const css = '@-webkit-keyframes foo {0% {-webkit-transform:translate(-50%) scaleX(0);}}';
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expect(s(css, 'contenta')).toEqual(css);
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});
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it('should handle complicated selectors', () => {
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expect(s('one::before {}', 'contenta')).toEqual('one[contenta]::before {}');
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expect(s('one two {}', 'contenta')).toEqual('one[contenta] two[contenta] {}');
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expect(s('one > two {}', 'contenta')).toEqual('one[contenta] > two[contenta] {}');
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expect(s('one + two {}', 'contenta')).toEqual('one[contenta] + two[contenta] {}');
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expect(s('one ~ two {}', 'contenta')).toEqual('one[contenta] ~ two[contenta] {}');
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const res = s('.one.two > three {}', 'contenta'); // IE swap classes
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expect(
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res == '.one.two[contenta] > three[contenta] {}' ||
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res == '.two.one[contenta] > three[contenta] {}')
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.toEqual(true);
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expect(s('one[attr="value"] {}', 'contenta')).toEqual('one[attr="value"][contenta] {}');
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expect(s('one[attr=value] {}', 'contenta')).toEqual('one[attr="value"][contenta] {}');
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expect(s('one[attr^="value"] {}', 'contenta')).toEqual('one[attr^="value"][contenta] {}');
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expect(s('one[attr$="value"] {}', 'contenta')).toEqual('one[attr$="value"][contenta] {}');
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expect(s('one[attr*="value"] {}', 'contenta')).toEqual('one[attr*="value"][contenta] {}');
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expect(s('one[attr|="value"] {}', 'contenta')).toEqual('one[attr|="value"][contenta] {}');
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expect(s('one[attr~="value"] {}', 'contenta')).toEqual('one[attr~="value"][contenta] {}');
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expect(s('one[attr="va lue"] {}', 'contenta')).toEqual('one[attr="va lue"][contenta] {}');
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expect(s('one[attr] {}', 'contenta')).toEqual('one[attr][contenta] {}');
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expect(s('[is="one"] {}', 'contenta')).toEqual('[is="one"][contenta] {}');
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});
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it('should handle escaped sequences in selectors', () => {
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expect(s('one\\/two {}', 'contenta')).toEqual('one\\/two[contenta] {}');
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expect(s('one\\:two {}', 'contenta')).toEqual('one\\:two[contenta] {}');
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expect(s('one\\\\:two {}', 'contenta')).toEqual('one\\\\[contenta]:two {}');
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expect(s('.one\\:two {}', 'contenta')).toEqual('.one\\:two[contenta] {}');
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expect(s('.one\\:two .three\\:four {}', 'contenta'))
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.toEqual('.one\\:two[contenta] .three\\:four[contenta] {}');
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});
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describe((':host'), () => {
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it('should handle no context', () => {
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expect(s(':host {}', 'contenta', 'a-host')).toEqual('[a-host] {}');
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});
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it('should handle tag selector', () => {
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expect(s(':host(ul) {}', 'contenta', 'a-host')).toEqual('ul[a-host] {}');
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});
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it('should handle class selector', () => {
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expect(s(':host(.x) {}', 'contenta', 'a-host')).toEqual('.x[a-host] {}');
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});
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it('should handle attribute selector', () => {
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expect(s(':host([a="b"]) {}', 'contenta', 'a-host')).toEqual('[a="b"][a-host] {}');
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expect(s(':host([a=b]) {}', 'contenta', 'a-host')).toEqual('[a="b"][a-host] {}');
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});
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it('should handle multiple tag selectors', () => {
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expect(s(':host(ul,li) {}', 'contenta', 'a-host')).toEqual('ul[a-host], li[a-host] {}');
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expect(s(':host(ul,li) > .z {}', 'contenta', 'a-host'))
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.toEqual('ul[a-host] > .z[contenta], li[a-host] > .z[contenta] {}');
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});
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it('should handle compound class selectors', () => {
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expect(s(':host(.a.b) {}', 'contenta', 'a-host')).toEqual('.a.b[a-host] {}');
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});
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it('should handle multiple class selectors', () => {
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expect(s(':host(.x,.y) {}', 'contenta', 'a-host')).toEqual('.x[a-host], .y[a-host] {}');
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expect(s(':host(.x,.y) > .z {}', 'contenta', 'a-host'))
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.toEqual('.x[a-host] > .z[contenta], .y[a-host] > .z[contenta] {}');
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});
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it('should handle multiple attribute selectors', () => {
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expect(s(':host([a="b"],[c=d]) {}', 'contenta', 'a-host'))
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.toEqual('[a="b"][a-host], [c="d"][a-host] {}');
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});
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it('should handle pseudo selectors', () => {
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expect(s(':host(:before) {}', 'contenta', 'a-host')).toEqual('[a-host]:before {}');
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expect(s(':host:before {}', 'contenta', 'a-host')).toEqual('[a-host]:before {}');
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expect(s(':host:nth-child(8n+1) {}', 'contenta', 'a-host'))
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.toEqual('[a-host]:nth-child(8n+1) {}');
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expect(s(':host:nth-of-type(8n+1) {}', 'contenta', 'a-host'))
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.toEqual('[a-host]:nth-of-type(8n+1) {}');
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expect(s(':host(.class):before {}', 'contenta', 'a-host'))
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.toEqual('.class[a-host]:before {}');
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expect(s(':host.class:before {}', 'contenta', 'a-host'))
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.toEqual('.class[a-host]:before {}');
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expect(s(':host(:not(p)):before {}', 'contenta', 'a-host'))
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.toEqual('[a-host]:not(p):before {}');
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});
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// see b/63672152
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it('should handle unexpected selectors in the most reasonable way', () => {
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expect(s('cmp:host {}', 'contenta', 'a-host')).toEqual('cmp[a-host] {}');
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expect(s('cmp:host >>> {}', 'contenta', 'a-host')).toEqual('cmp[a-host] {}');
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expect(s('cmp:host child {}', 'contenta', 'a-host'))
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.toEqual('cmp[a-host] child[contenta] {}');
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expect(s('cmp:host >>> child {}', 'contenta', 'a-host')).toEqual('cmp[a-host] child {}');
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expect(s('cmp :host {}', 'contenta', 'a-host')).toEqual('cmp [a-host] {}');
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expect(s('cmp :host >>> {}', 'contenta', 'a-host')).toEqual('cmp [a-host] {}');
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expect(s('cmp :host child {}', 'contenta', 'a-host'))
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.toEqual('cmp [a-host] child[contenta] {}');
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expect(s('cmp :host >>> child {}', 'contenta', 'a-host')).toEqual('cmp [a-host] child {}');
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});
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});
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describe((':host-context'), () => {
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it('should handle tag selector', () => {
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expect(s(':host-context(div) {}', 'contenta', 'a-host'))
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.toEqual('div[a-host], div [a-host] {}');
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expect(s(':host-context(ul) > .y {}', 'contenta', 'a-host'))
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.toEqual('ul[a-host] > .y[contenta], ul [a-host] > .y[contenta] {}');
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});
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it('should handle class selector', () => {
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expect(s(':host-context(.x) {}', 'contenta', 'a-host'))
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.toEqual('.x[a-host], .x [a-host] {}');
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expect(s(':host-context(.x) > .y {}', 'contenta', 'a-host'))
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.toEqual('.x[a-host] > .y[contenta], .x [a-host] > .y[contenta] {}');
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});
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it('should handle attribute selector', () => {
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expect(s(':host-context([a="b"]) {}', 'contenta', 'a-host'))
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.toEqual('[a="b"][a-host], [a="b"] [a-host] {}');
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expect(s(':host-context([a=b]) {}', 'contenta', 'a-host'))
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.toEqual('[a=b][a-host], [a="b"] [a-host] {}');
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});
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it('should handle multiple :host-context() selectors', () => {
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expect(s(':host-context(.one):host-context(.two) {}', 'contenta', 'a-host'))
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.toEqual(
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'.one.two[a-host], ' + // `one` and `two` both on the host
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'.one.two [a-host], ' + // `one` and `two` are both on the same ancestor
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'.one .two[a-host], ' + // `one` is an ancestor and `two` is on the host
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'.one .two [a-host], ' + // `one` and `two` are both ancestors (in that order)
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'.two .one[a-host], ' + // `two` is an ancestor and `one` is on the host
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'.two .one [a-host]' + // `two` and `one` are both ancestors (in that order)
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' {}');
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expect(s(':host-context(.X):host-context(.Y):host-context(.Z) {}', 'contenta', 'a-host')
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.replace(/ \{\}$/, '')
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.split(/\,\s+/))
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.toEqual([
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'.X.Y.Z[a-host]',
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'.X.Y.Z [a-host]',
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'.X.Y .Z[a-host]',
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'.X.Y .Z [a-host]',
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'.X.Z .Y[a-host]',
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'.X.Z .Y [a-host]',
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'.X .Y.Z[a-host]',
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'.X .Y.Z [a-host]',
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'.X .Y .Z[a-host]',
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'.X .Y .Z [a-host]',
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'.X .Z .Y[a-host]',
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'.X .Z .Y [a-host]',
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'.Y.Z .X[a-host]',
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'.Y.Z .X [a-host]',
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'.Y .Z .X[a-host]',
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'.Y .Z .X [a-host]',
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'.Z .Y .X[a-host]',
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'.Z .Y .X [a-host]',
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]);
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});
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// This test is checking backward compatibility.
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// It is not clear what the behaviour should be for a `:host-context` with no selectors.
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// Arguably it is actually an error that should be reported.
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it('should handle :host-context with no ancestor selectors', () => {
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expect(s('.outer :host-context .inner {}', 'contenta', 'a-host'))
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.toEqual('.outer [a-host] .inner[contenta] {}');
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expect(s('.outer :host-context() .inner {}', 'contenta', 'a-host'))
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.toEqual('.outer [a-host] .inner[contenta] {}');
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});
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});
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it('should support polyfill-next-selector', () => {
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let css = s('polyfill-next-selector {content: \'x > y\'} z {}', 'contenta');
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expect(css).toEqual('x[contenta] > y[contenta]{}');
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css = s('polyfill-next-selector {content: "x > y"} z {}', 'contenta');
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expect(css).toEqual('x[contenta] > y[contenta]{}');
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css = s(`polyfill-next-selector {content: 'button[priority="1"]'} z {}`, 'contenta');
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expect(css).toEqual('button[priority="1"][contenta]{}');
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});
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it('should support polyfill-unscoped-rule', () => {
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let css = s('polyfill-unscoped-rule {content: \'#menu > .bar\';color: blue;}', 'contenta');
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expect(css).toContain('#menu > .bar {;color:blue;}');
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css = s('polyfill-unscoped-rule {content: "#menu > .bar";color: blue;}', 'contenta');
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expect(css).toContain('#menu > .bar {;color:blue;}');
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css = s(`polyfill-unscoped-rule {content: 'button[priority="1"]'}`, 'contenta');
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expect(css).toContain('button[priority="1"] {}');
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});
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it('should support multiple instances polyfill-unscoped-rule', () => {
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const css =
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s('polyfill-unscoped-rule {content: \'foo\';color: blue;}' +
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'polyfill-unscoped-rule {content: \'bar\';color: blue;}',
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'contenta');
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expect(css).toContain('foo {;color:blue;}');
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expect(css).toContain('bar {;color:blue;}');
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});
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it('should support polyfill-rule', () => {
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let css = s('polyfill-rule {content: \':host.foo .bar\';color: blue;}', 'contenta', 'a-host');
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expect(css).toEqual('.foo[a-host] .bar[contenta] {;color:blue;}');
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css = s('polyfill-rule {content: ":host.foo .bar";color:blue;}', 'contenta', 'a-host');
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expect(css).toEqual('.foo[a-host] .bar[contenta] {;color:blue;}');
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css = s(`polyfill-rule {content: 'button[priority="1"]'}`, 'contenta', 'a-host');
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expect(css).toEqual('button[priority="1"][contenta] {}');
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});
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it('should handle ::shadow', () => {
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const css = s('x::shadow > y {}', 'contenta');
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expect(css).toEqual('x[contenta] > y[contenta] {}');
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});
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it('should handle /deep/', () => {
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const css = s('x /deep/ y {}', 'contenta');
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expect(css).toEqual('x[contenta] y {}');
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});
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it('should handle >>>', () => {
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const css = s('x >>> y {}', 'contenta');
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expect(css).toEqual('x[contenta] y {}');
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});
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it('should handle ::ng-deep', () => {
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let css = '::ng-deep y {}';
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expect(s(css, 'contenta')).toEqual('y {}');
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css = 'x ::ng-deep y {}';
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expect(s(css, 'contenta')).toEqual('x[contenta] y {}');
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css = ':host > ::ng-deep .x {}';
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expect(s(css, 'contenta', 'h')).toEqual('[h] > .x {}');
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css = ':host ::ng-deep > .x {}';
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expect(s(css, 'contenta', 'h')).toEqual('[h] > .x {}');
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css = ':host > ::ng-deep > .x {}';
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expect(s(css, 'contenta', 'h')).toEqual('[h] > > .x {}');
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});
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it('should pass through @import directives', () => {
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const styleStr = '@import url("https://fonts.googleapis.com/css?family=Roboto");';
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const css = s(styleStr, 'contenta');
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expect(css).toEqual(styleStr);
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});
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it('should shim rules after @import', () => {
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const styleStr = '@import url("a"); div {}';
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const css = s(styleStr, 'contenta');
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expect(css).toEqual('@import url("a"); div[contenta] {}');
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});
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it('should shim rules with quoted content after @import', () => {
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const styleStr = '@import url("a"); div {background-image: url("a.jpg"); color: red;}';
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const css = s(styleStr, 'contenta');
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expect(css).toEqual(
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'@import url("a"); div[contenta] {background-image:url("a.jpg"); color:red;}');
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});
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it('should pass through @import directives whose URL contains colons and semicolons', () => {
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const styleStr =
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'@import url("https://fonts.googleapis.com/css2?family=Roboto:wght@400;500&display=swap");';
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const css = s(styleStr, 'contenta');
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expect(css).toEqual(styleStr);
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});
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it('should shim rules after @import with colons and semicolons', () => {
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const styleStr =
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'@import url("https://fonts.googleapis.com/css2?family=Roboto:wght@400;500&display=swap"); div {}';
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const css = s(styleStr, 'contenta');
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expect(css).toEqual(
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'@import url("https://fonts.googleapis.com/css2?family=Roboto:wght@400;500&display=swap"); div[contenta] {}');
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});
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it('should leave calc() unchanged', () => {
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const styleStr = 'div {height:calc(100% - 55px);}';
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const css = s(styleStr, 'contenta');
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expect(css).toEqual('div[contenta] {height:calc(100% - 55px);}');
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});
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it('should strip comments', () => {
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expect(s('/* x */b {c}', 'contenta')).toEqual('b[contenta] {c}');
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});
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it('should ignore special characters in comments', () => {
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expect(s('/* {;, */b {c}', 'contenta')).toEqual('b[contenta] {c}');
|
|
});
|
|
|
|
it('should support multiline comments', () => {
|
|
expect(s('/* \n */b {c}', 'contenta')).toEqual('b[contenta] {c}');
|
|
});
|
|
|
|
it('should keep sourceMappingURL comments', () => {
|
|
expect(s('b {c}/*# sourceMappingURL=data:x */', 'contenta'))
|
|
.toEqual('b[contenta] {c}/*# sourceMappingURL=data:x */');
|
|
expect(s('b {c}/* #sourceMappingURL=data:x */', 'contenta'))
|
|
.toEqual('b[contenta] {c}/* #sourceMappingURL=data:x */');
|
|
});
|
|
|
|
it('should keep sourceURL comments', () => {
|
|
expect(s('/*# sourceMappingURL=data:x */b {c}/*# sourceURL=xxx */', 'contenta'))
|
|
.toEqual('b[contenta] {c}/*# sourceMappingURL=data:x *//*# sourceURL=xxx */');
|
|
});
|
|
|
|
it('should shim rules with quoted content', () => {
|
|
const styleStr = 'div {background-image: url("a.jpg"); color: red;}';
|
|
const css = s(styleStr, 'contenta');
|
|
expect(css).toEqual('div[contenta] {background-image:url("a.jpg"); color:red;}');
|
|
});
|
|
|
|
it('should shim rules with an escaped quote inside quoted content', () => {
|
|
const styleStr = 'div::after { content: "\\"" }';
|
|
const css = s(styleStr, 'contenta');
|
|
expect(css).toEqual('div[contenta]::after { content:"\\""}');
|
|
});
|
|
|
|
it('should shim rules with curly braces inside quoted content', () => {
|
|
const styleStr = 'div::after { content: "{}" }';
|
|
const css = s(styleStr, 'contenta');
|
|
expect(css).toEqual('div[contenta]::after { content:"{}"}');
|
|
});
|
|
});
|
|
|
|
describe('processRules', () => {
|
|
describe('parse rules', () => {
|
|
function captureRules(input: string): CssRule[] {
|
|
const result: CssRule[] = [];
|
|
processRules(input, (cssRule) => {
|
|
result.push(cssRule);
|
|
return cssRule;
|
|
});
|
|
return result;
|
|
}
|
|
|
|
it('should work with empty css', () => {
|
|
expect(captureRules('')).toEqual([]);
|
|
});
|
|
|
|
it('should capture a rule without body', () => {
|
|
expect(captureRules('a;')).toEqual([new CssRule('a', '')]);
|
|
});
|
|
|
|
it('should capture css rules with body', () => {
|
|
expect(captureRules('a {b}')).toEqual([new CssRule('a', 'b')]);
|
|
});
|
|
|
|
it('should capture css rules with nested rules', () => {
|
|
expect(captureRules('a {b {c}} d {e}')).toEqual([
|
|
new CssRule('a', 'b {c}'),
|
|
new CssRule('d', 'e'),
|
|
]);
|
|
});
|
|
|
|
it('should capture multiple rules where some have no body', () => {
|
|
expect(captureRules('@import a ; b {c}')).toEqual([
|
|
new CssRule('@import a', ''),
|
|
new CssRule('b', 'c'),
|
|
]);
|
|
});
|
|
});
|
|
|
|
describe('modify rules', () => {
|
|
it('should allow to change the selector while preserving whitespaces', () => {
|
|
expect(processRules(
|
|
'@import a; b {c {d}} e {f}',
|
|
(cssRule: CssRule) => new CssRule(cssRule.selector + '2', cssRule.content)))
|
|
.toEqual('@import a2; b2 {c {d}} e2 {f}');
|
|
});
|
|
|
|
it('should allow to change the content', () => {
|
|
expect(processRules(
|
|
'a {b}',
|
|
(cssRule: CssRule) => new CssRule(cssRule.selector, cssRule.content + '2')))
|
|
.toEqual('a {b2}');
|
|
});
|
|
});
|
|
});
|
|
}
|