vitest support rolldown-vite now?

[pumano]

When I try to override vite with rolldown-vite via https://vite.dev/guide/rolldown I got some errors when try to run tests. Currently vitest works with rolldown-vite or not?

P. S. my setup is nx + angular + analogjs/vite-plugin-angular + analogjs/vitest-angular

but looks like from stack trace vite is not overriden in vitest to rolldown-vite

[sampain]

Seem like vitest v3.2.2 now supports it. See the changelog: https://github.com/vitest-dev/vitest/releases/tag/v3.2.2

[pumano]

thank you, I use workaround for my case and it works, but with no gains in speed (3.2.2 too). Maybe because of angular plugin, maybe plugin not rely fully on Vite and preprocess via esbuild.

export default defineConfig(({ mode }) => ({
  root: __dirname,
  cacheDir: '../../node_modules/.vite/features/mylib',
  plugins: [
    angular({ disableTypeChecking: true }),
    nxViteTsPaths(),
    nxCopyAssetsPlugin(['*.md']),
    mode === 'test' && {
      name: 'vitest-rolldown',
      load(source) {
        // workaround for Vitest
        if (source === '/@vite/env') {
          return '';
        }

        return undefined;
      },
    },
    mode === 'test' && {
      name: 'vitest-rolldown-json-loader',
      load(source) {
        // workaround for Vitest
        if (source.endsWith('.json')) {
          const content = fs.readFileSync(source, 'utf-8');
          return {
            code: `export default ${JSON.stringify(content)}`,
            moduleType: 'js',
          };
        }

        return undefined;
      },
    },
  ],
  experimental: {
    enableNativePlugin: true,
  },
  test: {
    watch: false,
    globals: true,
    environment: 'jsdom',
    include: ['src/**/*.{test,spec}.{js,mjs,cjs,ts,mts,cts,jsx,tsx}'],
    setupFiles: ['src/test-setup.ts'],
    reporters: ['default'],
    coverage: {
      reportsDirectory: '../../coverage/features/mylib',
      provider: 'v8',
    },
  },
}));