I am getting coverage summary statements unknown ( 0/0 ) - Code Coverage for Playwright

I have a BaseFixtures.ts file like this: import * as fs from 'fs'; import * as path from 'path'; import * as crypto from 'crypto'; import { test as baseTest } from '@playwright/test';

const istanbulCLIOutput = path.join(process.cwd(), '.nyc_output');

export function generateUUID(): string { return crypto.randomBytes(16).toString('hex'); }

export const test = baseTest.extend({ context: async ({ context }, use) => { await context.addInitScript(() => window.addEventListener('beforeunload', () => (window as any).collectIstanbulCoverage(JSON.stringify((window as any).coverage)) ), ); await fs.promises.mkdir(istanbulCLIOutput, { recursive: true }); await context.exposeFunction('collectIstanbulCoverage', (coverageJSON: string) => { if (coverageJSON) fs.writeFileSync(path.join(istanbulCLIOutput, playwright_coverage_${generateUUID()}.json), coverageJSON); }); await use(context); for (const page of context.pages()) { await page.evaluate(() => (window as any).collectIstanbulCoverage(JSON.stringify((window as any).coverage))) } } });

export const expect = test.expect; ...I followed this repo: https://github.com/mxschmitt/playwright-test-coverage/blob/main/e2e/baseFixtures.ts GitHub playwright-test-coverage/e2e/baseFixtures.ts at main · mxschmitt/pl... Playwright Test (@playwright/test) demo to collect coverage information via Istanbul - mxschmitt/playwright-test-covera

For future reference you can try to check out these guides:

• Playwright code coverage with monocart-reporter: https://github.com/edumserrano/playwright-adventures/blob/main/demos/code-coverage-with-monocart-reporter/README.md

• Playwright code coverage with Istanbul via Webpack Babel plugin https://github.com/edumserrano/playwright-adventures/blob/main/demos/code-coverage-with-istanbul-via-webpack-babel-plugin/README.md