Command

test

Description

First of all, I support the initiative to add vitest to Angular. Especially since vite is already used for build & serve.

Early feedback for vitest in Angular v20. Based on a quick browse of packages/angular/build/src/builders/unit-test/builder.ts there doesn't seem to be a way to pass configuration settings.

For this to be even slightly usable, you would need to set vitest options such as:

• timeouts
• setupFiles
• coverage (specify lcov reporter)

Describe the solution you'd like

One option is letting people pass vitest options in angular.json and doing a deep object merge.

Describe alternatives you've considered

Personally I would rather see less obfuscation... let people have a vitest.config.ts.

import { defineConfig } from "vitest/config";

export default defineConfig({
  test: {}
});

You could add a plugin (like @analogjs/vite-plugin-angular)

You could also provide an angulardefineConfig. Then you can strongly type the options and include/exclude ones that make sense for angular.

import { defineConfig } from "@angular/vitest";

export default defineConfig({ ... });