test: set up vitest for n-link-core components

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

desktop/package.json

@@ -7,7 +7,8 @@
     "dev": "vite",
     "build": "vue-tsc --noEmit && vite build",
     "preview": "vite preview",
-    "tauri": "tauri"
+    "tauri": "tauri",
+    "test": "vitest run"
   },
   "dependencies": {
     "@tauri-apps/api": "^2.11.1",
@@ -23,12 +24,15 @@
     "@tailwindcss/forms": "^0.5.11",
     "@tauri-apps/cli": "^2",
     "@vitejs/plugin-vue": "^5.2.1",
+    "@vue/test-utils": "^2.4.6",
     "autoprefixer": "^10.5.4",
+    "happy-dom": "^15.11.7",
     "postcss": "^8.5.21",
     "sass": "^1.101.3",
     "tailwindcss": "^3.4.19",
     "typescript": "~5.6.2",
     "vite": "^6.0.3",
+    "vitest": "^2.1.8",
     "vue-tsc": "^2.1.10"
   }
 }

desktop/vitest.config.ts

@@ -0,0 +1,16 @@
+import { defineConfig } from 'vitest/config';
+import vue from '@vitejs/plugin-vue';
+import { fileURLToPath, URL } from 'node:url';
+
+export default defineConfig({
+  plugins: [vue()],
+  resolve: {
+    alias: {
+      'n-link-core': fileURLToPath(new URL('../n-link-core', import.meta.url)),
+    },
+  },
+  test: {
+    environment: 'happy-dom',
+    include: ['../n-link-core/components/**/*.spec.ts', 'src/**/*.spec.ts'],
+  },
+});

n-link-core/components/smoke.spec.ts

@@ -0,0 +1,11 @@
+import { describe, it, expect } from 'vitest';
+import { mount } from '@vue/test-utils';
+import { defineComponent, h } from 'vue';
+
+describe('vitest setup', () => {
+  it('mounts a component', () => {
+    const C = defineComponent({ render: () => h('div', 'hello') });
+    const wrapper = mount(C);
+    expect(wrapper.text()).toBe('hello');
+  });
+});