test: add vitest configureVitest plugin compatibility tests

Author: fengmk2

packages/cli/src/__tests__/index.spec.ts

@@ -200,3 +200,34 @@ test('defineConfig supports async function config with plain plugins array', asy
   const config = await configFn({ command: 'build', mode: 'production' });
   expect(config.plugins?.length).toBe(1);
 });
+
+test('defineConfig supports vitest plugin with configureVitest hook', () => {
+  const config = defineConfig({
+    plugins: [
+      {
+        name: 'vitest-plugin',
+        configureVitest() {
+          // vitest plugin hook
+        },
+      },
+    ],
+  });
+  expect(config.plugins?.length).toBe(1);
+  expect((config.plugins?.[0] as { name: string })?.name).toBe('vitest-plugin');
+});
+
+test('defineConfig supports vitest plugin with configureVitest in plugins factory', () => {
+  process.env.VP_COMMAND = 'test';
+  const config = defineConfig({
+    plugins: () => [
+      {
+        name: 'vitest-factory-plugin',
+        configureVitest() {
+          // vitest plugin hook
+        },
+      },
+    ],
+  });
+  expect(config.plugins?.length).toBe(1);
+  expect((config.plugins?.[0] as { name: string })?.name).toBe('vitest-factory-plugin');
+});