- Install Jest for unit testing with React Testing Library - Install Playwright for end-to-end testing - Configure Jest with proper TypeScript support and module mapping - Create test setup files and utilities for both unit and e2e tests Components: * Jest configuration with coverage thresholds * Playwright configuration with browser automation * Unit tests for LoginForm, AuthContext, and useSocketIO hook * E2E tests for authentication, dashboard, and agents workflows * GitHub Actions workflow for automated testing * Mock data and API utilities for consistent testing * Test documentation with best practices Testing features: - Unit tests with 70% coverage threshold - E2E tests with API mocking and user journey testing - CI/CD integration for automated test runs - Cross-browser testing support with Playwright - Authentication system testing end-to-end 🚀 Generated with [Claude Code](https://claude.ai/code) Co-Authored-By: Claude <noreply@anthropic.com>
v8-to-istanbul
converts from v8 coverage format to istanbul's coverage format.
Usage
const v8toIstanbul = require('v8-to-istanbul')
// the path to the original source-file is required, as its contents are
// used during the conversion algorithm.
const converter = v8toIstanbul('./path-to-instrumented-file.js')
await converter.load() // this is required due to async file reading.
// provide an array of coverage information in v8 format.
converter.applyCoverage([
{
"functionName": "",
"ranges": [
{
"startOffset": 0,
"endOffset": 520,
"count": 1
}
],
"isBlockCoverage": true
},
// ...
])
// output coverage information in a form that can
// be consumed by Istanbul.
console.info(JSON.stringify(converter.toIstanbul()))
Ignoring Uncovered Lines
Sometimes you might find yourself wanting to ignore uncovered lines in your application (for example, perhaps you run your tests in Linux, but there's code that only executes on Windows).
To ignore lines, use the special comment /* v8 ignore next */.
NOTE: Before version 9.2.0 the ignore hint had to contain c8 keyword, e.g. /* c8 ignore ....
ignoring the next line
const myVariable = 99
/* v8 ignore next */
if (process.platform === 'win32') console.info('hello world')
ignoring the next N lines
const myVariable = 99
/* v8 ignore next 3 */
if (process.platform === 'win32') {
console.info('hello world')
}
ignoring all lines until told
/* v8 ignore start */
function dontMindMe() {
// ...
}
/* v8 ignore stop */
ignoring the same line as the comment
const myVariable = 99
const os = process.platform === 'darwin' ? 'OSXy' /* v8 ignore next */ : 'Windowsy'
Testing
To execute tests, simply run:
npm test