import swc from 'unplugin-swc';
import { defineConfig } from 'vitest/config';

// NestJS relies on decorator metadata, which esbuild (Vitest's default
// transformer) cannot emit — SWC (configured via .swcrc) can.
export default defineConfig({
  plugins: [swc.vite({ module: { type: 'es6' } })],
  test: {
    environment: 'node',
    globalSetup: './vitest.global-setup.ts',
    // DB-backed suites share one database; parallel files would race.
    fileParallelism: false,
  },
});