diff --git a/packages/compiler/vite.config.ts b/packages/compiler/vite.config.ts
index d547839..9d55b53 100644
--- a/packages/compiler/vite.config.ts
+++ b/packages/compiler/vite.config.ts
@@ -2,10 +2,11 @@ import { dirname, resolve } from "node:path";
 import { fileURLToPath } from "node:url";
 import { defineConfig } from "vite";
 import dts from "unplugin-dts/vite";
+import packageJson from './package.json' with {type: "json"}
 
 const __dirname = dirname(fileURLToPath(import.meta.url));
 
-export default defineConfig({
+export default defineConfig(({ mode }) => ({
   plugins: [dts({
     tsconfigPath: "tsconfig.app.json",
     entryRoot: "src",
@@ -26,4 +27,12 @@ export default defineConfig({
       external: [/^node:/, "typescript"],
     },
   },
-});
+  test: {
+    name: packageJson.name,
+    dir: './tests',
+    watch: false,
+  },
+  define: {
+    'import.meta.vitest': mode !== 'production',
+  },
+}));
diff --git a/packages/parser/vite.config.ts b/packages/parser/vite.config.ts
new file mode 100644
index 0000000..e3b748f
--- /dev/null
+++ b/packages/parser/vite.config.ts
@@ -0,0 +1,13 @@
+import { defineConfig } from 'vitest/config'
+import packageJson from './package.json'
+
+export default defineConfig(({ mode }) => ({
+  test: {
+    name: packageJson.name,
+    dir: './tests',
+    watch: false,
+  },
+  define: {
+    'import.meta.vitest': mode !== 'production',
+  },
+}))
diff --git a/packages/prettier-plugin/vite.config.ts b/packages/prettier-plugin/vite.config.ts
new file mode 100644
index 0000000..e3b748f
--- /dev/null
+++ b/packages/prettier-plugin/vite.config.ts
@@ -0,0 +1,13 @@
+import { defineConfig } from 'vitest/config'
+import packageJson from './package.json'
+
+export default defineConfig(({ mode }) => ({
+  test: {
+    name: packageJson.name,
+    dir: './tests',
+    watch: false,
+  },
+  define: {
+    'import.meta.vitest': mode !== 'production',
+  },
+}))