diff --git a/package.json b/package.json
index 63b127a..f03a860 100644
--- a/package.json
+++ b/package.json
@@ -6,7 +6,7 @@
   "scripts": {
     "dev": "vite",
     "test:vitest": "vitest run",
-    "test:playwright": "playwright tests",
+    "test:playwright": "playwright test",
     "build": "vite build",
     "lint": "biome lint src/",
     "fmt": "pnpm biome format --write src/ tests/",
diff --git a/tests/playwright/main.spec.ts b/tests/playwright/main.spec.ts
index 6d8b8d8..c00f4db 100644
--- a/tests/playwright/main.spec.ts
+++ b/tests/playwright/main.spec.ts
@@ -2,5 +2,18 @@ import { expect, test } from '@playwright/test'
 
 test('scan parquet', async ({ page }) => {
   await page.goto('http://localhost:5173/index.html')
+  // 初期値が0であることを確認
+  await expect(page.locator('#scanned')).toHaveText('Scanned: false')
+
+  // 「Scan Parquet」ボタンをクリック
   await page.click('#scan-parquet')
+
+  // true になるまで待機（最大10秒）
+  await expect(page.locator('#scanned')).toHaveText('Scanned: true', { timeout: 30000 })
+
+  // 「load table」ボタンをクリック
+  await page.click('#load-table')
+
+  // テーブルが読み込まれたことを確認
+  await expect(page.locator('#table')).toBeVisible()
 })