1.web-platform-tests / wptTest suites for Web platform specs — including WHATWG, W3C, and otherstestinghtmltest-automationbrowserw3cwhatwg+13 moreHTMLOther license6.3K total4K forks+14 starsfrom 6,289 · score 2.71
2.avajs / avaNode.js test runner that lets you develop with confidence 🚀test-runneravajavascriptconcurrencyasync-functionstap+12 moreJavaScriptMIT21K total1.5K forks+1 starsfrom 20,826 · score 0.69