Angular v21 Support with Vitest
For Angular CLI v21 workspaces and projects, Wallaby now automatically detects and configures the default Vitest runner. Wallaby runs tests in Node.js environments such as jsdom and happy-dom, or in browsers via playwright or webdriverio, and provides better incremental run performance, reliability, and live results streaming.
Wallaby also adds experimental support for Oxc Angular Compiler. If you have the @oxc-angular/vite package installed, Wallaby will automatically use it to transform your TypeScript Angular files, providing an alternative transpiler that may offer improved performance for certain projects.