@web/test-runner v0.18.1
Web Test Runner
Test runner for web applications.
👉 Headless browsers with Puppeteer, Playwright, or Selenium. 🚧 Reports logs, 404s, and errors from the browser. 🔍 Debug opens a real browser window with devtools. 📦 Mock es modules using Import Maps. 🔧 Exposes browser properties like viewport size and dark mode. ⏱ Runs tests in parallel and isolation. 👀 Interactive watch mode. 🏃 Fast development by rerunning only changed tests. 🚀 Powered by esbuild and rollup plugins
See our website for full documentation.
Installation
Install the web test runner:
npm i --save-dev @web/test-runner
Basic commands
Do a single test run:
web-test-runner test/**/*.test.js --node-resolve
wtr test/**/*.test.js --node-resolve
Run in watch mode, reloading on file changes:
web-test-runner test/**/*.test.js --node-resolve --watch
wtr test/**/*.test.js --node-resolve --watch
Run with code coverage profiling (this is slower):
web-test-runner test/**/*.test.js --node-resolve --coverage
wtr test/**/*.test.js --node-resolve --coverage
Transform JS to a compatible syntax based on user agent:
web-test-runner test/**/*.test.js --node-resolve --esbuild-target auto
wtr test/**/*.test.js --node-resolve --esbuild-target auto
Guide
Check out this step by step guide to get started.
Example projects
Check out the example projects for a fully integrated setup.
Documentation
See our website for full documentation.
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