690 lines
25 KiB
JavaScript
690 lines
25 KiB
JavaScript
// Dependencies
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// =============================================================================
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import axios from 'axios';
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import createTestElms from './helpers/create-test-elms';
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import getCss from '../src/get-css';
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import { expect } from 'chai';
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// Constants & Variables
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// =============================================================================
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const isIElte9 = document.all && !window.atob;
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// Suite
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// =============================================================================
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describe('get-css', function() {
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const fixtures = window.__FIXTURES__;
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// Hooks
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// -------------------------------------------------------------------------
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// Conditionally include web component+polyfill to avoid errors in IE < 11
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before(function() {
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const hasWebComponentSupport = () => 'customElements' in window;
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const isNotIELessThan11 = navigator.appVersion.indexOf('MSIE') === -1;
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if (!hasWebComponentSupport() && isNotIELessThan11) {
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console.log('*** Injected: Web Component Polyfill ***');
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require('@webcomponents/webcomponentsjs/webcomponents-bundle.js');
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}
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if (hasWebComponentSupport()) {
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console.log('*** Injected: Web Component ***');
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require('./helpers/inject-test-component.js')();
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}
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});
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// Remove <link> and <style> elements added for each test
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beforeEach(function() {
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const testNodes = document.querySelectorAll('[data-test]');
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for (let i = 0; i < testNodes.length; i++) {
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testNodes[i].parentNode.removeChild(testNodes[i]);
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}
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});
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// Tests: Ignored
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// -------------------------------------------------------------------------
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it('ignores invalid nodes (must be <link> or <style>)', function(done) {
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const styleCss = fixtures['style1.css'];
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createTestElms('<div>Test</div>', { appendTo: 'body' });
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createTestElms(`<style>${styleCss}</style>`);
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getCss({
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include: '[data-test]',
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onComplete(cssText, cssArray, nodeArray) {
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expect(cssText).to.equal(styleCss);
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done();
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}
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});
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});
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// Tests: <style> CSS
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// -------------------------------------------------------------------------
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describe('<style> nodes', function() {
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it('returns CSS from single <style> node', function(done) {
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const styleCss = fixtures['style1.css'];
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createTestElms(`<style>${styleCss}</style>`);
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getCss({
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include: '[data-test]',
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onComplete(cssText, cssArray, nodeArray) {
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expect(cssText).to.equal(styleCss);
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done();
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}
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});
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});
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it('returns CSS from single SVG <style> node', function(done) {
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const styleCss = 'circle { stroke: green; }';
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createTestElms(`
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<svg width="50" height="50" version="1.1" xmlns="http://www.w3.org/2000/svg">
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<style>${ styleCss }</style>
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<circle cx="25" cy="25" r="20" fill="yellow" stroke-width="5"/>
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</svg>
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`);
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getCss({
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include: 'svg style',
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onComplete(cssText, cssArray, nodeArray) {
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expect(cssText).to.equal(styleCss);
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done();
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}
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});
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});
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it('returns CSS from multiple <style> nodes', function(done) {
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const styleCss = fixtures['style1.css'];
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const styleElms = createTestElms(`<style>${styleCss}</style>`.repeat(2));
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const expected = styleCss.repeat(styleElms.length);
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getCss({
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include: '[data-test]',
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onComplete(cssText, cssArray, nodeArray) {
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expect(cssText).to.equal(expected);
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done();
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}
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});
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});
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it('returns CSS from multiple <style> nodes with single @import in same directory', function(done) {
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const styleCss = '@import "/base/tests/fixtures/style2.css";';
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const styleElms = createTestElms(`<style>${styleCss}</style>`.repeat(2));
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const expected = fixtures['style2.out.css'].repeat(styleElms.length);
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getCss({
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include: '[data-test]',
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onComplete(cssText, cssArray, nodeArray) {
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expect(cssText).to.equal(expected);
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done();
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}
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});
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});
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it('returns CSS from multiple <style> nodes with chained @imports in same directory', function(done) {
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const styleCss = '@import "/base/tests/fixtures/style3.css";';
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const styleElms = createTestElms(`<style>${styleCss}</style>`.repeat(2));
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const expected = fixtures['style3.out.css'].repeat(styleElms.length);
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getCss({
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include: '[data-test]',
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onComplete(cssText, cssArray, nodeArray) {
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expect(cssText).to.equal(expected);
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done();
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}
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});
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});
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it('returns CSS from multiple <style> nodes with chained @imports in different directories', function(done) {
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const styleCss = '@import "/base/tests/fixtures/a/import.css";';
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const expected = fixtures['style1.css'].repeat(6);
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createTestElms(`<style>${styleCss}</style>`.repeat(2));
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getCss({
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include: '[data-test]',
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onComplete(cssText, cssArray, nodeArray) {
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cssText = cssText.replace(/\n/g, '');
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expect(cssText).to.equal(expected);
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done();
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}
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});
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});
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});
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// Tests: <link> CSS
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// -------------------------------------------------------------------------
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describe('<link> nodes', function() {
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it('returns CSS from single <link> node', function(done) {
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const linkUrl = '/base/tests/fixtures/style1.css';
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const expected = fixtures['style1.css'];
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createTestElms(`<link rel="stylesheet" href="${linkUrl}">`);
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getCss({
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include: '[data-test]',
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onComplete(cssText, cssArray, nodeArray) {
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expect(cssText).to.equal(expected);
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done();
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}
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});
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});
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it('returns CSS from single <link> node with data URI scheme', function(done) {
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const encodedCSS = encodeURIComponent(fixtures['style1.css']);
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const URIScheme = `data:text/css;charset=UTF-8,${encodedCSS}`;
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const expected = fixtures['style1.css'];
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createTestElms(`<link rel="stylesheet" href="${URIScheme}" />`);
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getCss({
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include: '[data-test]',
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onComplete(cssText, cssArray, nodeArray) {
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expect(cssText).to.equal(expected);
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done();
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}
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});
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});
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it('returns CSS from single <link> node via CORS', function(done) {
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const linkProtocol = 'https:';
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const linkUrl = `${linkProtocol}//cdn.jsdelivr.net/npm/get-css-data@1.0.0/tests/fixtures/style1.css`;
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createTestElms(`<link rel="stylesheet" href="${linkUrl}">`);
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// IE9 does not support CORS requests with different protocol
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if (isIElte9 & location.protocol !== linkProtocol) {
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getCss({
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include: '[data-test]',
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onError(xhr, node, url) {
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done();
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}
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});
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}
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else {
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axios.get(linkUrl)
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.then(response => response.data)
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.then(expected => {
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getCss({
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include: '[data-test]',
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onComplete(cssText, cssArray, nodeArray) {
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expect(cssText).to.equal(expected);
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done();
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}
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});
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});
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}
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});
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it('returns CSS from multiple <link> nodes', function(done) {
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const linkUrl = '/base/tests/fixtures/style1.css';
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const linkElms = createTestElms(`<link rel="stylesheet" href="${linkUrl}">`.repeat(2));
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const expected = fixtures['style1.css'].repeat(linkElms.length);
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getCss({
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include: '[data-test]',
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onComplete(cssText, cssArray, nodeArray) {
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expect(cssText).to.equal(expected);
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done();
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}
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});
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});
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it('returns CSS from multiple <link> nodes with data URI scheme', function(done) {
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const encodedCSS = encodeURIComponent(fixtures['style1.css']);
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const URIScheme = `data:text/css;charset=UTF-8,${encodedCSS}`;
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const linkElms = createTestElms(`<link rel="stylesheet" href="${URIScheme}">`.repeat(2));
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const expected = fixtures['style1.css'].repeat(linkElms.length);
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getCss({
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include: '[data-test]',
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onComplete(cssText, cssArray, nodeArray) {
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expect(cssText).to.equal(expected);
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done();
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}
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});
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});
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it('returns empty string from single <link> node w/ empty stylesheet', function(done) {
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const linkUrl = '/base/tests/fixtures/style-empty.css';
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const expected = fixtures['style-empty.css'];
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createTestElms(`<link rel="stylesheet" href="${linkUrl}">`);
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getCss({
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include: '[data-test]',
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onError(xhr, node, url) {
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console.log('Error', node, url);
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},
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onComplete(cssText, cssArray, nodeArray) {
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expect(cssText).to.equal(expected);
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done();
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}
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});
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});
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it('returns CSS from multiple <link> nodes with flat @import', function(done) {
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const linkUrl = '/base/tests/fixtures/style2.css';
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const linkElms = createTestElms(`<link rel="stylesheet" href="${linkUrl}">`.repeat(2));
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const expected = fixtures['style2.out.css'].repeat(linkElms.length);
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getCss({
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include: '[data-test]',
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onComplete(cssText, cssArray, nodeArray) {
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expect(cssText).to.equal(expected);
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done();
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}
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});
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});
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it('returns CSS from multiple <link> nodes with nested @import', function(done) {
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const linkUrl = '/base/tests/fixtures/style3.css';
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const linkElms = createTestElms(`<link rel="stylesheet" href="${linkUrl}">`.repeat(2));
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const expected = fixtures['style3.out.css'].repeat(linkElms.length);
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getCss({
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include: '[data-test]',
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onComplete(cssText, cssArray, nodeArray) {
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expect(cssText).to.equal(expected);
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done();
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}
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});
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});
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});
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// Tests: <link> & <style> CSS
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// -------------------------------------------------------------------------
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it('returns CSS From multiple <link> and <style> nodes in <head> and <body>', function(done) {
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const linkUrl = '/base/tests/fixtures/style1.css';
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const styleCss = fixtures['style1.css'];
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const elms = createTestElms([
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{ tag: 'link', attr: { rel: 'stylesheet', href: linkUrl }},
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{ tag: 'link', attr: { rel: 'stylesheet', href: linkUrl }, appendTo: 'body' },
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{ tag: 'style', text: styleCss },
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{ tag: 'style', text: styleCss, appendTo: 'body' }
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]);
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const expected = styleCss.repeat(elms.length);
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getCss({
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include: '[data-test]',
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onComplete(cssText, cssArray, nodeArray) {
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expect(cssText).to.equal(expected);
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done();
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}
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});
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});
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// Tests: Options
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// -------------------------------------------------------------------------
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describe('Options', function() {
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if (window.customElements) {
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it('options.rootElement', function(done) {
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const customElm = createTestElms({ tag: 'test-component', attr: { 'data-text': 'Custom Element' } })[0];
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const shadowRoot = customElm.shadowRoot;
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const shadowStyleCss = shadowRoot.querySelector('style').textContent;
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getCss({
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rootElement: shadowRoot,
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onComplete(cssText, cssArray, nodeArray) {
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expect(cssText).to.equal(shadowStyleCss);
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done();
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}
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});
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});
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}
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it('options.exclude', function(done) {
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const linkUrl = '/base/tests/fixtures/style1.css';
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const styleCss = fixtures['style1.css'];
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createTestElms(`<link rel="stylesheet" href="${linkUrl}">`);
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createTestElms(`<style>${styleCss}</style>`);
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getCss({
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include: '[data-test]',
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exclude: 'link',
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onComplete(cssText, cssArray, nodeArray) {
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expect(cssText).to.equal(styleCss);
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done();
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}
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});
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});
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it('options.filter', function(done) {
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const linkUrl = '/base/tests/fixtures/style1.css';
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const styleCss = '.keepme { color: red; }';
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createTestElms(`<link rel="stylesheet" href="${linkUrl}">`);
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createTestElms(`<style>${styleCss}</style>`);
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getCss({
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include: '[data-test]',
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filter : /keepme/,
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onComplete(cssText, cssArray, nodeArray) {
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expect(cssText).to.equal(styleCss);
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done();
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}
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});
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});
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it('options.skipDisabled', function(done) {
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const linkUrl = '/base/tests/fixtures/style1.css';
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const styleCss = fixtures['style1.css'];
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const testElms = createTestElms([
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`<link rel="stylesheet" href="${linkUrl}" disabled>`,
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`<style>${styleCss}</style>`
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]);
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for (const sheet of document.styleSheets) {
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sheet.disabled = true;
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}
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function step1() {
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getCss({
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include : '[data-test]',
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skipDisabled: true,
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onComplete(cssText, cssArray, nodeArray) {
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expect(nodeArray.length, '1:nodeArray').to.equal(0);
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expect(cssArray.length, '1:cssArray').to.equal(0);
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expect(cssText, '1:cssText').to.equal('');
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// Enable <style> sheet
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testElms[1].sheet.disabled = false;
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step2();
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}
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});
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}
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function step2() {
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getCss({
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include : '[data-test]',
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skipDisabled: true,
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onComplete(cssText, cssArray, nodeArray) {
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expect(nodeArray.length, '2:nodeArray').to.equal(1);
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expect(cssArray.length, '2:cssArray').to.equal(1);
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expect(cssText, '2:cssText').to.equal(styleCss);
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step3();
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}
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});
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}
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function step3() {
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getCss({
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include : '[data-test]',
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skipDisabled: false,
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onComplete(cssText, cssArray, nodeArray) {
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expect(nodeArray.length, '3:nodeArray').to.equal(2);
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expect(cssArray.length, '3:cssArray').to.equal(2);
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expect(cssText, '3:cssText').to.equal(styleCss.repeat(2));
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done();
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}
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});
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}
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step1();
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});
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it('options.useCSSOM with <style>', function(done) {
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const styleCss = fixtures['style1.css'];
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const styleElm = createTestElms({ tag: 'style' })[0];
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getCss({
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include: '[data-test]',
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useCSSOM: false,
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onComplete(cssText, cssArray, nodeArray) {
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expect(cssText, 'Before insertRule()').to.equal('');
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}
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});
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styleElm.sheet.insertRule(styleCss, 0);
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getCss({
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include: '[data-test]',
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useCSSOM: true,
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onComplete(cssText, cssArray, nodeArray) {
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expect(cssText, 'After insertRule()').to.equal(styleCss);
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done();
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}
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});
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});
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it('options.useCSSOM with data URI scheme', function(done) {
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const encodedCSS = encodeURIComponent(fixtures['style1.css']);
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const URIScheme = `data:text/css;charset=UTF-8,${encodedCSS}`;
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const styleCss = fixtures['style1.css'];
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const styleElm = createTestElms(`<link rel="stylesheet" href="${URIScheme}" />`)[0];
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// Skip if unable to read cssRules to avoid failures due to CORS
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try {
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styleElm.sheet.cssRules;
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getCss({
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include: '[data-test]',
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useCSSOM: true,
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onComplete(cssText, cssArray, nodeArray) {
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expect(cssText).to.equal(styleCss);
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done();
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}
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});
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}
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catch(e) {
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this.skip();
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}
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});
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});
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// Tests: Callbacks
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// -------------------------------------------------------------------------
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describe('Callbacks', function() {
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it('triggers onBeforeSend callback for each @import', function(done) {
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let onBeforeSendCount = 0;
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createTestElms({
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tag : 'style',
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text: '@import "/base/tests/fixtures/style1.css";@import "/base/tests/fixtures/style2.css";'
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});
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getCss({
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include: '[data-test]',
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onBeforeSend(xhr, node, url) {
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onBeforeSendCount++;
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},
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onComplete(cssText, cssArray, nodeArray) {
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expect(onBeforeSendCount, '<link> count').to.equal(3);
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done();
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}
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});
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});
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it('triggers onBeforeSend callback for each <link> node', function(done) {
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let onBeforeSendCount = 0;
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createTestElms({
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tag : 'link',
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attr: { rel: 'stylesheet', href: '/base/tests/fixtures/style1.css' }
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});
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getCss({
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include: '[data-test]',
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onBeforeSend(xhr, node, url) {
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onBeforeSendCount++;
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},
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onComplete(cssText, cssArray, nodeArray) {
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expect(onBeforeSendCount, '<link> count').to.equal(1);
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done();
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}
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});
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});
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it('triggers onSuccess callback for each <style> node', function(done) {
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const styleCss = fixtures['style1.css'];
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const styleElms = createTestElms(`<style>${styleCss}</style>`.repeat(2));
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let onSuccessCount = 0;
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|
getCss({
|
|
include: '[data-test]',
|
|
onSuccess(cssText, node, url) {
|
|
onSuccessCount++;
|
|
|
|
return '!';
|
|
},
|
|
onComplete(cssText, cssArray, nodeArray) {
|
|
expect(cssText, 'return value').to.equal('!'.repeat(styleElms.length));
|
|
expect(onSuccessCount, 'onSuccess count').to.equal(styleElms.length);
|
|
done();
|
|
}
|
|
});
|
|
});
|
|
|
|
it('triggers onSuccess callback for each <link> node', function(done) {
|
|
const linkUrl = '/base/tests/fixtures/style1.css';
|
|
const linkElms = createTestElms(`<link rel="stylesheet" href="${linkUrl}">`.repeat(2));
|
|
|
|
let onSuccessCount = 0;
|
|
|
|
getCss({
|
|
include: '[data-test]',
|
|
onSuccess(cssText, node, url) {
|
|
onSuccessCount++;
|
|
|
|
return '!';
|
|
},
|
|
onComplete(cssText, cssArray, nodeArray) {
|
|
expect(cssText, 'return value').to.equal('!'.repeat(linkElms.length));
|
|
expect(onSuccessCount, 'onSuccess count').to.equal(linkElms.length);
|
|
done();
|
|
}
|
|
});
|
|
});
|
|
|
|
it('filters CSS and nodes based on onSuccess() return value', function(done) {
|
|
const testElms = createTestElms([
|
|
'<style>.one { color: red; }</style>',
|
|
'<style>.two { color: green; }</style>',
|
|
'<style>.three { color: blue; }</style>',
|
|
'<style>.four { color: black; }</style>'
|
|
]);
|
|
|
|
getCss({
|
|
include: '[data-test]',
|
|
onSuccess(cssText, node, url) {
|
|
const returnVals = [false, null, 0, ''];
|
|
const nodeIndex = testElms.indexOf(node);
|
|
|
|
if (nodeIndex > -1) {
|
|
return returnVals[nodeIndex];
|
|
}
|
|
},
|
|
onComplete(cssText, cssArray, nodeArray) {
|
|
expect(cssText).to.equal('');
|
|
expect(cssArray.length).to.equal(0);
|
|
expect(nodeArray.length).to.equal(0);
|
|
done();
|
|
}
|
|
});
|
|
});
|
|
|
|
it('modifies CSS text based on onSuccess() value', function(done) {
|
|
const linkUrl = '/base/tests/fixtures/style1.css';
|
|
const styleCss = fixtures['style1.css'];
|
|
const modifiedCss = '.modified { color: red; }';
|
|
|
|
createTestElms(`<link rel="stylesheet" href="${linkUrl}">`);
|
|
createTestElms(`<style>${styleCss}</style>`);
|
|
|
|
getCss({
|
|
include: '[data-test]',
|
|
onSuccess(cssText, node, url) {
|
|
return modifiedCss;
|
|
},
|
|
onComplete(cssText, cssArray, nodeArray) {
|
|
expect(cssText).to.equal(modifiedCss.repeat(2));
|
|
done();
|
|
}
|
|
});
|
|
});
|
|
|
|
it('triggers onError callback for each @import 404 error', function(done) {
|
|
const styleCss = '@import "fail.css";';
|
|
const styleElms = createTestElms(`<style>${styleCss}</style>`.repeat(3));
|
|
|
|
let onErrorCount = 0;
|
|
|
|
getCss({
|
|
include: '[data-test]',
|
|
onError(xhr, node, url) {
|
|
onErrorCount++;
|
|
},
|
|
onComplete(cssText, cssArray, nodeArray) {
|
|
expect(onErrorCount).to.equal(styleElms.length);
|
|
done();
|
|
}
|
|
});
|
|
});
|
|
|
|
it('triggers onError callback for each <link> 404 error', function(done) {
|
|
const linkUrl = 'fail.css';
|
|
const linkElms = createTestElms(`<link rel="stylesheet" href="${linkUrl}">`.repeat(2));
|
|
|
|
let onErrorCount = 0;
|
|
|
|
getCss({
|
|
include: '[data-test]',
|
|
onError(xhr, node, url) {
|
|
onErrorCount++;
|
|
},
|
|
onComplete(cssText, cssArray, nodeArray) {
|
|
expect(onErrorCount).to.equal(linkElms.length);
|
|
done();
|
|
}
|
|
});
|
|
});
|
|
|
|
it('triggers onError callback for each invalid <link> XMLHttpRequest.responseText', function(done) {
|
|
const linkUrl = '/base/tests/fixtures/404.html';
|
|
const linkElms = createTestElms(`<link rel="stylesheet" href="${linkUrl}">`.repeat(2));
|
|
|
|
let onErrorCount = 0;
|
|
|
|
getCss({
|
|
include: '[data-test]',
|
|
onError(xhr, node, url) {
|
|
onErrorCount++;
|
|
},
|
|
onComplete(cssText, cssArray, nodeArray) {
|
|
expect(onErrorCount).to.equal(linkElms.length);
|
|
done();
|
|
}
|
|
});
|
|
});
|
|
|
|
it('triggers onComplete callback with no matching <style> or <link> nodes', function(done) {
|
|
const testSelector = '[fail]';
|
|
const testElms = document.querySelectorAll(testSelector);
|
|
|
|
getCss({
|
|
include: testSelector,
|
|
onComplete(cssText, cssArray, nodeArray) {
|
|
expect(testElms.length).to.equal(0);
|
|
done();
|
|
}
|
|
});
|
|
});
|
|
});
|
|
});
|