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How to use installCoverageHooks method in Playwright Internal
Best JavaScript code snippet using playwright-internal
coverage.js
Source:coverage.js 
...80}81/**82 * @param {string} browserName83 */84function installCoverageHooks(browserName) {85 const {api, events} = apiForBrowser(browserName);86 const coverage = new Map();87 const uninstall = traceAPICoverage(coverage, api, events);88 return {coverage, uninstall};89}90class CoverageEnv {91 /**92 * @param {string} browserName93 */94 constructor(browserName) {95 this.browserName = browserName;96 }97 /**98 * @param {import('folio').WorkerInfo} workerInfo99 */100 async beforeAll(workerInfo) {101 this.coverage = installCoverageHooks(this.browserName);102 }103 /**104 * @param {import('folio').WorkerInfo} workerInfo105 */106 async afterAll(workerInfo) {107 const { coverage, uninstall } = this.coverage;108 uninstall();109 const coveragePath = path.join(__dirname, '..', 'coverage-report', workerInfo.workerIndex + '.json');110 const coverageJSON = Array.from(coverage.keys()).filter(key => coverage.get(key));111 await fs.promises.mkdir(path.dirname(coveragePath), { recursive: true });112 await fs.promises.writeFile(coveragePath, JSON.stringify(coverageJSON, undefined, 2), 'utf8');113 }114}115module.exports = {...
checkCoverage.js
Source:checkCoverage.js
...16const path = require('path');17const fs = require('fs');18const {installCoverageHooks} = require('./coverage');19const browserName = process.argv[2] || 'chromium';20let api = new Set(installCoverageHooks(browserName).coverage.keys());21// coverage exceptions22if (browserName === 'chromium') {23 // Sometimes we already have a background page while launching, before adding a listener.24 api.delete('browserContext.emit("backgroundpage")');25}26if (browserName !== 'chromium') {27 // we don't have CDPSession in non-chromium browsers28 api.delete('browser.newBrowserCDPSession');29 api.delete('browser.startTracing');30 api.delete('browser.stopTracing');31 api.delete('browserContext.backgroundPages');32 api.delete('browserContext.serviceWorkers');33 api.delete('browserContext.newCDPSession');34 api.delete('browserContext.emit("backgroundpage")');...
Using AI Code Generation
1const { installCoverageHooks } = require('playwright/lib/server/coverage');2const { chromium } = require('playwright');3(async () => {4 const browser = await chromium.launch();5 const context = await browser.newContext();6 const page = await context.newPage();7 installCoverageHooks(page);8 await page.coverage.startJSCoverage();9 const jsCoverage = await page.coverage.stopJSCoverage();10 console.log(jsCoverage);11 await browser.close();12})();13const { chromium } = require('playwright');14(async () => {15 const browser = await chromium.launch();16 const context = await browser.newContext();17 const page = await context.newPage();18 await page.coverage.startJSCoverage();19 const jsCoverage = await page.coverage.stopJSCoverage();20 console.log(jsCoverage);21 await browser.close();22})();23const { chromium } = require('playwright');24(async () => {25 const browser = await chromium.launch();26 const context = await browser.newContext();27 const page = await context.newPage();28 await page.coverage.startJSCoverage();29 const jsCoverage = await page.coverage.stopJSCoverage();30 console.log(jsCoverage);31 await browser.close();32})();33const { chromium } = require('playwright');34(async () => {35 const browser = await chromium.launch();36 const context = await browser.newContext();37 const page = await context.newPage();
Using AI Code Generation
1const { installCoverageHooks } = require('playwright/lib/server/coverage');2const { chromium } = require('playwright-chromium');3const path = require('path');4(async () => {5 const browser = await chromium.launch();6 const context = await browser.newContext();7 installCoverageHooks(path.join(__dirname, 'coverage.json'), context);8 const page = await context.newPage();9 await page.close();10 await context.close();11 await browser.close();12})();13Now, we have to use the coverage file to generate the report. We will be using the [nyc](
Using AI Code Generation
1const { installCoverageHooks } = require('playwright/lib/server/cjs/test/coverage');2installCoverageHooks();3const { installCoverageHooks } = require('playwright/lib/server/cjs/test/coverage');4installCoverageHooks();5const { installCoverageHooks } = require('playwright/lib/server/cjs/test/coverage');6installCoverageHooks();7const { installCoverageHooks } = require('playwright/lib/server/cjs/test/coverage');8installCoverageHooks();9const { installCoverageHooks } = require('playwright/lib/server/cjs/test/coverage');10installCoverageHooks();11const { installCoverageHooks } = require('playwright/lib/server/cjs/test/coverage');12installCoverageHooks();13const { installCoverageHooks } = require('playwright/lib/server/cjs/test/coverage');14installCoverageHooks();15const { installCoverageHooks } = require('playwright/lib/server/cjs/test/coverage');16installCoverageHooks();17const { installCoverageHooks } = require('playwright/lib/server/cjs/test/coverage');18installCoverageHooks();19const { installCoverageHooks } = require('playwright/lib/server/cjs/test/coverage');20installCoverageHooks();21const { installCoverageHooks } = require('playwright/lib/server/cjs/test/coverage');22installCoverageHooks();23const { installCoverageHooks } = require('playwright/lib/server/cjs/test/coverage');24installCoverageHooks();25const { installCoverageHooks } = require('playwright/lib/server/cjs/test/coverage');26installCoverageHooks();27const { installCoverageHooks } = require('playwright/lib/server/cjs/test
Using AI Code Generation
1const { installCoverageHooks } = require('playwright/lib/server/coverage');2installCoverageHooks();3const { chromium } = require('playwright');4(async () => {5 const browser = await chromium.launch();6 const context = await browser.newContext();7 const page = await context.newPage();8 await page.close();9 await context.close();10 await browser.close();11})();12const { installCoverageHooks } = require('playwright/lib/server/coverage');13installCoverageHooks();14const { chromium } = require('playwright');15(async () => {16 const browser = await chromium.launch();17 const context = await browser.newContext();18 const page = await context.newPage();19 await page.close();20 await context.close();21 await browser.close();22})();23const { installCoverageHooks } = require('playwright/lib/server/coverage');24installCoverageHooks();25const { chromium } = require('playwright');26(async () => {27 const browser = await chromium.launch();28 const context = await browser.newContext();29 const page = await context.newPage();30 await page.close();31 await context.close();32 await browser.close();33})();34const { installCoverageHooks } = require('playwright/lib/server/coverage');35installCoverageHooks();36const { chromium } = require('playwright');37(async () => {38 const browser = await chromium.launch();39 const context = await browser.newContext();40 const page = await context.newPage();41 await page.close();42 await context.close();43 await browser.close();44})();45const { installCoverageHooks } = require('playwright/lib/server/coverage');46installCoverageHooks();47const { chromium } = require('playwright
Using AI Code Generation
1const { installCoverageHooks } = require('playwright/lib/server/coverage');2const { createTestServer } = require('playwright/test');3const server = await createTestServer();4installCoverageHooks(server);5await server.listen(8080);6await page.coverage.startJSCoverage();7await page.coverage.stopJSCoverage();8await server.stop();9const { installCoverageHooks } = require('playwright/lib/server/coverage');10const { createTestServer } = require('playwright/test');11const server = await createTestServer();12installCoverageHooks(server);13await server.listen(8080);14await page.coverage.startJSCoverage();15await page.coverage.stopJSCoverage();16await server.stop();17const { test, expect } = require('@playwright/test');18test('Should generate coverage report for a file', async ({ page }) => {19 await page.coverage.startJSCoverage();20 await page.coverage.stopJSCoverage();21 const coverage = await page.coverage.stopJSCoverage();22 expect(coverage).toBeTruthy();23 expect(coverage.length).toBe(1);24 expect(coverage[0].text).toBeTruthy();25 expect(coverage[0].ranges.length).toBeGreaterThan(0);26});27const { test, expect } = require('@playwright/test');28test('Should generate coverage report for a file', async ({ page }) => {29 await page.coverage.startJSCoverage();30 await page.coverage.stopJSCoverage();31 const coverage = await page.coverage.stopJSCoverage();32 expect(coverage).toBeTruthy();33 expect(coverage.length).toBe(1);
Using AI Code Generation
1const { installCoverageHooks } = require("@playwright/test");2installCoverageHooks(globalThis);3const { coverage } = require("@playwright/test");4const coverageObject = await coverage.startJSCoverage();5await coverage.stopJSCoverage(coverageObject);6module.exports = {7 {8 globalSetup: require.resolve("./globalSetup.js"),9 },10};11const { chromium } = require("playwright");12module.exports = async () => {13 const browser = await chromium.launch();14 const context = await browser.newContext();15 globalThis.browser = browser;16 globalThis.context = context;17};18module.exports = async () => {19 await globalThis.context.close();20 await globalThis.browser.close();21};22{23 "scripts": {24 },25 "devDependencies": {26 }27}28const { coverage } = require("@playwright/test");29const coverageObject = await coverage.startJSCoverage();30await coverage.stopJSCoverage(coverageObject);31const { coverage } = require("@playwright/test");32const coverageObject = await coverage.startJSCoverage({33 {34 },35});36await coverage.stopJSCoverage(coverageObject);
Using AI Code Generation
1const { installCoverageHooks } = require('playwright/lib/server/coverage');2installCoverageHooks();3const { chromium } = require('playwright');4const browser = await chromium.launch();5const { chromium } = require('playwright');6const browser = await chromium.launch();7const { chromium } = require('playwright');8const browser = await chromium.launch();9const { chromium } = require('playwright');10const browser = await chromium.launch();11const { chromium } = require('playwright');12const browser = await chromium.launch();13const { chromium } = require('playwright');14const browser = await chromium.launch();15const { chromium } = require('playwright');16const browser = await chromium.launch();17const { chromium } = require('playwright');18const browser = await chromium.launch();19const { chromium } = require('playwright');20const browser = await chromium.launch();21const { chromium } = require('playwright');22const browser = await chromium.launch();23const { chromium } = require('playwright');24const browser = await chromium.launch();25const { chromium } = require('playwright');26const browser = await chromium.launch();
Using AI Code Generation
1const { installCoverageHooks } = require('playwright/lib/server/coverage');2installCoverageHooks();3const playwright = require('playwright');4const coverage = await globalThis.__coverage__;5fs.writeFileSync('coverage.json', JSON.stringify(coverage));6const browser = await playwright.chromium.launch();7const context = await browser.newContext();8const page = await context.newPage();9await page.coverage.startJSCoverage();10await page.coverage.stopJSCoverage();11await browser.close();12const { chromium } = require('playwright');13const fs = require('fs');14(async () => {15 const browser = await chromium.launch();
Playwright tutorial
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