vitest.config.ts

import { fileURLToPath } from 'node:url';
import { defineConfig } from 'vitest/config';

export default defineConfig({
  // Mirror tsconfig's `@/*` path so panel components are importable in tests.
  resolve: { alias: { '@': fileURLToPath(new URL('.', import.meta.url)) } },
  // Next's tsconfig sets `jsx: preserve` (Next compiles JSX itself); the
  // vitest transform must compile it instead for the React-facing suites.
  oxc: { jsx: { runtime: 'automatic' } },
  test: {
    // Most modules under test are React-free and Three.js-free pure logic, so
    // the fast Node environment is the default. The few React-facing suites
    // (e.g. use-layout-store.react.test.ts) opt into jsdom per-file via a
    // `// @vitest-environment jsdom` comment.
    environment: 'node',
    globals: false,
    include: ['app/**/*.test.{ts,tsx}', 'components/**/*.test.{ts,tsx}'],
  },
});