How to use startCSSCoverage method in Playwright Internal
Best JavaScript code snippet using playwright-internal
coverage.spec.js
Source:coverage.spec.js 
...118 });119 });120 describe('CSSCoverage', function() {121 it('should work', async function({page, server}) {122 await page.coverage.startCSSCoverage();123 await page.goto(server.PREFIX + '/csscoverage/simple.html');124 const coverage = await page.coverage.stopCSSCoverage();125 expect(coverage.length).toBe(1);126 expect(coverage[0].url).toContain('/csscoverage/simple.html');127 expect(coverage[0].ranges).toEqual([128 {start: 1, end: 22}129 ]);130 const range = coverage[0].ranges[0];131 expect(coverage[0].text.substring(range.start, range.end)).toBe('div { color: green; }');132 });133 it('should report sourceURLs', async function({page, server}) {134 await page.coverage.startCSSCoverage();135 await page.goto(server.PREFIX + '/csscoverage/sourceurl.html');136 const coverage = await page.coverage.stopCSSCoverage();137 expect(coverage.length).toBe(1);138 expect(coverage[0].url).toBe('nicename.css');139 });140 it('should report multiple stylesheets', async function({page, server}) {141 await page.coverage.startCSSCoverage();142 await page.goto(server.PREFIX + '/csscoverage/multiple.html');143 const coverage = await page.coverage.stopCSSCoverage();144 expect(coverage.length).toBe(2);145 coverage.sort((a, b) => a.url.localeCompare(b.url));146 expect(coverage[0].url).toContain('/csscoverage/stylesheet1.css');147 expect(coverage[1].url).toContain('/csscoverage/stylesheet2.css');148 });149 it('should report stylesheets that have no coverage', async function({page, server}) {150 await page.coverage.startCSSCoverage();151 await page.goto(server.PREFIX + '/csscoverage/unused.html');152 const coverage = await page.coverage.stopCSSCoverage();153 expect(coverage.length).toBe(1);154 expect(coverage[0].url).toBe('unused.css');155 expect(coverage[0].ranges.length).toBe(0);156 });157 it('should work with media queries', async function({page, server}) {158 await page.coverage.startCSSCoverage();159 await page.goto(server.PREFIX + '/csscoverage/media.html');160 const coverage = await page.coverage.stopCSSCoverage();161 expect(coverage.length).toBe(1);162 expect(coverage[0].url).toContain('/csscoverage/media.html');163 expect(coverage[0].ranges).toEqual([164 {start: 17, end: 38}165 ]);166 });167 it('should work with complicated usecases', async function({page, server}) {168 await page.coverage.startCSSCoverage();169 await page.goto(server.PREFIX + '/csscoverage/involved.html');170 const coverage = await page.coverage.stopCSSCoverage();171 expect(JSON.stringify(coverage, null, 2).replace(/:\d{4}\//g, ':<PORT>/')).toBeGolden('csscoverage-involved.txt');172 });173 it('should ignore injected stylesheets', async function({page, server}) {174 await page.coverage.startCSSCoverage();175 await page.addStyleTag({content: 'body { margin: 10px;}'});176 // trigger style recalc177 const margin = await page.evaluate(() => window.getComputedStyle(document.body).margin);178 expect(margin).toBe('10px');179 const coverage = await page.coverage.stopCSSCoverage();180 expect(coverage.length).toBe(0);181 });182 describe('resetOnNavigation', function() {183 it('should report stylesheets across navigations', async function({page, server}) {184 await page.coverage.startCSSCoverage({resetOnNavigation: false});185 await page.goto(server.PREFIX + '/csscoverage/multiple.html');186 await page.goto(server.EMPTY_PAGE);187 const coverage = await page.coverage.stopCSSCoverage();188 expect(coverage.length).toBe(2);189 });190 it('should NOT report scripts across navigations', async function({page, server}) {191 await page.coverage.startCSSCoverage(); // Enabled by default.192 await page.goto(server.PREFIX + '/csscoverage/multiple.html');193 await page.goto(server.EMPTY_PAGE);194 const coverage = await page.coverage.stopCSSCoverage();195 expect(coverage.length).toBe(0);196 });197 });198 it('should work with a recently loaded stylesheet', async function({page, server}) {199 await page.coverage.startCSSCoverage();200 await page.evaluate(async url => {201 document.body.textContent = 'hello, world';202 const link = document.createElement('link');203 link.rel = 'stylesheet';204 link.href = url;205 document.head.appendChild(link);206 await new Promise(x => link.onload = x);207 }, server.PREFIX + '/csscoverage/stylesheet1.css');208 const coverage = await page.coverage.stopCSSCoverage();209 expect(coverage.length).toBe(1);210 });211 });...
coverage.js
Source:coverage.js
...152 }153)154test.serial('CSSCoverage should work', async t => {155 const { page, server } = t.context156 await page.coverage.startCSSCoverage()157 await page.goto(server.PREFIX + '/csscoverage/simple.html')158 const coverage = await page.coverage.stopCSSCoverage()159 t.is(coverage.length, 1)160 t.true(coverage[0].url.includes('/csscoverage/simple.html'))161 t.deepEqual(coverage[0].ranges, [{ start: 1, end: 22 }])162 const range = coverage[0].ranges[0]163 t.is(164 coverage[0].text.substring(range.start, range.end),165 'div { color: green; }'166 )167})168test.serial('CSSCoverage should report sourceURLs', async t => {169 const { page, server } = t.context170 await page.coverage.startCSSCoverage()171 await page.goto(server.PREFIX + '/csscoverage/sourceurl.html')172 const coverage = await page.coverage.stopCSSCoverage()173 t.is(coverage.length, 1)174 t.is(coverage[0].url, 'nicename.css')175})176test.serial('CSSCoverage should report multiple stylesheets', async t => {177 const { page, server } = t.context178 await page.coverage.startCSSCoverage()179 await page.goto(server.PREFIX + '/csscoverage/multiple.html')180 const coverage = await page.coverage.stopCSSCoverage()181 t.is(coverage.length, 2)182 coverage.sort((a, b) => a.url.localeCompare(b.url))183 t.true(coverage[0].url.includes('/csscoverage/stylesheet1.css'))184 t.true(coverage[1].url.includes('/csscoverage/stylesheet2.css'))185})186test.serial(187 'CSSCoverage should report stylesheets that have no coverage',188 async t => {189 const { page, server } = t.context190 await page.coverage.startCSSCoverage()191 await page.goto(server.PREFIX + '/csscoverage/unused.html')192 const coverage = await page.coverage.stopCSSCoverage()193 t.is(coverage.length, 1)194 t.is(coverage[0].url, 'unused.css')195 t.is(coverage[0].ranges.length, 0)196 }197)198test.serial('CSSCoverage should work with media queries', async t => {199 const { page, server } = t.context200 await page.coverage.startCSSCoverage()201 await page.goto(server.PREFIX + '/csscoverage/media.html')202 const coverage = await page.coverage.stopCSSCoverage()203 t.is(coverage.length, 1)204 t.true(coverage[0].url.includes('/csscoverage/media.html'))205 t.deepEqual(coverage[0].ranges, [{ start: 17, end: 38 }])206})207test.serial('CSSCoverage should work with complicated usecases', async t => {208 const { page, server } = t.context209 await page.coverage.startCSSCoverage()210 await page.goto(server.PREFIX + '/csscoverage/involved.html')211 const coverage = await page.coverage.stopCSSCoverage()212 t.context.toBeGolden(213 t,214 JSON.stringify(coverage, null, 2).replace(/:\d{4}\//g, ':<PORT>/'),215 'csscoverage-involved.txt'216 )217})218test.serial('CSSCoverage should ignore injected stylesheets', async t => {219 const { page, server } = t.context220 await page.coverage.startCSSCoverage()221 await page.addStyleTag({ content: 'body { margin: 10px;}' })222 // trigger style recalc223 const margin = await page.evaluate(224 () => window.getComputedStyle(document.body).margin225 )226 t.is(margin, '10px')227 const coverage = await page.coverage.stopCSSCoverage()228 t.is(coverage.length, 0)229})230test.serial(231 'CSSCoverage - resetOnNavigation: should report stylesheets across navigations',232 async t => {233 const { page, server } = t.context234 await page.coverage.startCSSCoverage({ resetOnNavigation: false })235 await page.goto(server.PREFIX + '/csscoverage/multiple.html')236 await page.goto(server.EMPTY_PAGE)237 const coverage = await page.coverage.stopCSSCoverage()238 t.is(coverage.length, 2)239 }240)241test.serial(242 'CSSCoverage - resetOnNavigation: should NOT report scripts across navigations',243 async t => {244 const { page, server } = t.context245 await page.coverage.startCSSCoverage() // Enabled by default.246 await page.goto(server.PREFIX + '/csscoverage/multiple.html')247 await page.goto(server.EMPTY_PAGE)248 const coverage = await page.coverage.stopCSSCoverage()249 t.is(coverage.length, 0)250 }251)252test.serial(253 'CSSCoverage should work with a recently loaded stylesheet',254 async t => {255 const { page, server } = t.context256 await page.coverage.startCSSCoverage()257 await page.evaluate(async url => {258 document.body.textContent = 'hello, world'259 const link = document.createElement('link')260 link.rel = 'stylesheet'261 link.href = url262 document.head.appendChild(link)263 await new Promise(x => (link.onload = x))264 }, server.PREFIX + '/csscoverage/stylesheet1.css')265 const coverage = await page.coverage.stopCSSCoverage()266 t.is(coverage.length, 1)267 }...
setup.test.js
Source:setup.test.js
...8 const page = await browser.newPage()9 // Enable both JavaScript and CSS coverage10 await Promise.all([11 page.coverage.startJSCoverage([false, false]),12 page.coverage.startCSSCoverage()13 ]);14 await page.goto(15 'file:///Users/anirudhsharma/Documents/Semester8_College/STAD/Final%20Project/MonopolyTestFinalProj/monopoly-master1/index.html'16 )17 await page.click('#setup > div:nth-child(10) > input[type=button]')18 const [jsCoverage, cssCoverage] = await Promise.all([19 page.coverage.stopJSCoverage(),20 page.coverage.stopCSSCoverage(),21 ]);22 pti.write([...jsCoverage, ...cssCoverage], { includeHostname: true , storagePath: './.nyc_output' })23 await browser.close()24})25test("test start game click - 4 players", async () => {26 const browser = await puppeteer.launch({27 })28 const page = await browser.newPage()29 // Enable both JavaScript and CSS coverage30 await Promise.all([31 page.coverage.startJSCoverage([false, false]),32 page.coverage.startCSSCoverage()33 ]);34 await page.goto(35 'file:///Users/anirudhsharma/Documents/Semester8_College/STAD/Final%20Project/MonopolyTestFinalProj/monopoly-master1/index.html'36 )37 const [jsCoverage, cssCoverage] = await Promise.all([38 page.coverage.stopJSCoverage(),39 page.coverage.stopCSSCoverage(),40 ]);41 pti.write([...jsCoverage, ...cssCoverage], { includeHostname: true , storagePath: './.nyc_output' })42 await browser.close()...
Using AI Code Generation
1const { chromium } = require('playwright');2(async () => {3 const browser = await chromium.launch();4 const page = await browser.newPage();5 await page.coverage.startCSSCoverage();6 const coverage = await page.coverage.stopCSSCoverage();7 console.log(coverage);8 await browser.close();9})();10const { chromium } = require('playwright');11(async () => {12 const browser = await chromium.launch();13 const page = await browser.newPage();14 await page.coverage.startJSCoverage();15 const coverage = await page.coverage.stopJSCoverage();16 console.log(coverage);17 await browser.close();18})();19const { chromium } = require('playwright');20(async () => {21 const browser = await chromium.launch();22 const page = await browser.newPage();23 await page.coverage.startJSCoverage();24 const coverage = await page.coverage.stopJSCoverage();25 console.log(coverage);26 await browser.close();27})();28const { chromium } = require('playwright');29(async () => {30 const browser = await chromium.launch();31 const page = await browser.newPage();32 await page.coverage.startJSCoverage();33 const coverage = await page.coverage.stopJSCoverage();34 console.log(coverage);35 await browser.close();36})();37const { chromium } = require('playwright');38(async () => {39 const browser = await chromium.launch();40 const page = await browser.newPage();41 await page.coverage.startJSCoverage();42 const coverage = await page.coverage.stopJSCoverage();43 console.log(coverage);44 await browser.close();45})();46const { chromium } = require('playwright');47(async () => {48 const browser = await chromium.launch();49 const page = await browser.newPage();
Using AI Code Generation
1const playwright = require('playwright');2(async () => {3 const browser = await playwright.chromium.launch();4 const context = await browser.newContext();5 const page = await context.newPage();6 const client = await page.context().newCDPSession(page);7 await client.send('CSS.startCSSCoverage');8 const coverage = await client.send('CSS.stopCSSCoverage');9 console.log(coverage);10 await browser.close();11})();12[ { styleSheetId: '1',13 ranges: [ { start: 0, end: 0 } ],14 text: '' },15 { styleSheetId: '2',16 ranges: [ { start: 0, end: 0 } ],17 text: '' },18 { styleSheetId: '3',19 ranges: [ { start: 0, end: 0 } ],20 text: '' },21 { styleSheetId: '4',22 ranges: [ { start: 0, end: 0 } ],23 text: '' },24 { styleSheetId: '5',25 ranges: [ { start: 0, end: 0 } ],26 text: '' },27 { styleSheetId: '6',28 ranges: [ { start: 0, end: 0 } ],29 text: '' },30 { styleSheetId: '7',31 ranges: [ { start: 0
Using AI Code Generation
1const { startCSSCoverage } = require('playwright/lib/server/chromium/crPage');2const { chromium } = require('playwright');3const fs = require('fs');4(async () => {5 const browser = await chromium.launch();6 const context = await browser.newContext();7 const page = await context.newPage();8 const client = await page.context().newCDPSession(page);9 await client.send('Page.enable');10 await client.send('CSS.enable');11 await startCSSCoverage(client);12 const coverage = await client.send('CSS.stopCSSCoverage');13 fs.writeFileSync('./coverage.json', JSON.stringify(coverage, null, 2));14 await browser.close();15})();16{17 {18 {19 },20 {21 }22 }23}24const { stopCSSCoverage } = require('playwright/lib/server/chromium/crPage');25const { chromium } = require('playwright');26const fs = require('fs');27(async () => {28 const browser = await chromium.launch();29 const context = await browser.newContext();30 const page = await context.newPage();31 const client = await page.context().newCDPSession(page);32 await client.send('Page.enable');33 await client.send('CSS.enable');34 await startCSSCoverage(client);35 const coverage = await stopCSSCoverage(client);36 fs.writeFileSync('./coverage.json', JSON.stringify(coverage, null, 2));37 await browser.close();38})();39{40 {41 {42 },43 {44 }45 }46}47const { startJSCoverage } = require('playwright/lib
Using AI Code Generation
1const { startCSSCoverage } = require('playwright/lib/server/chromium/crCoverage');2const { chromium } = require('playwright');3const fs = require('fs');4const path = require('path');5(async () => {6 const browser = await chromium.launch();7 const context = await browser.newContext();8 const page = await context.newPage();9 const cssCoverage = await startCSSCoverage(page);10 const coverage = await cssCoverage.stop();11 const css = coverage.map((entry) => entry.text).join('\n');12 fs.writeFileSync(path.join(__dirname, 'styles.css'), css);13 await browser.close();14})();
Using AI Code Generation
1const { startCSSCoverage } = require('playwright/lib/server/chromium/crCoverage');2const { chromium } = require('playwright');3const { Page } = require('playwright/lib/server/page');4const { helper } = require('playwright/lib/helper');5const { assert } = require('console');6(async () => {7 const browser = await chromium.launch({ headless: false, args: ['--remote-debugging-port=9222'] });8 const context = await browser.newContext();9 const page = await context.newPage();10 await page.evaluate(() => {11 const link = document.createElement('link');12 link.rel = 'stylesheet';13 document.head.appendChild(link);14 });15 const cssCoverage = await startCSSCoverage(page);16 const coverage = await cssCoverage.stop();17 console.log(coverage);18 await browser.close();19})();
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