✅test: add playwright

.github/workflows/playwright.yml

@@ -0,0 +1,48 @@
+name: Playwright Tests
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: true
+
+on:
+  push:
+    branches: main
+  pull_request:
+    branches: main
+  workflow_dispatch:
+
+jobs:
+  test:
+    timeout-minutes: 30
+    runs-on: ubuntu-latest
+
+    steps:
+      - uses: actions/checkout@v4
+        with:
+          ref: ${{ env.SHA }}
+        env:
+          SHA: ${{ github.event.pull_request.head.sha || github.sha }}
+
+      - name: Install bun
+        uses: oven-sh/setup-bun@v2
+        with:
+          bun-version: canary
+
+      - name: Install dependencies
+        run: bun i
+
+      - name: Build app
+        run: bun run build
+
+      - name: Install Playwright Browsers
+        run: bunx playwright install --with-deps
+
+      - name: Run Playwright tests
+        run: bunx playwright test
+
+      - uses: actions/upload-artifact@v4
+        if: ${{ !cancelled() }}
+        with:
+          name: playwright-report
+          path: playwright-report/
+          retention-days: 30

.gitignore

@@ -11,7 +11,11 @@
 !.yarn/versions
 
 # testing
+/blob-report/
 /coverage
+/playwright/.cache/
+/playwright-report/
+/test-results/
 
 # next.js
 /.next/

.vscode/extensions.json

@@ -1,3 +1,3 @@
 {
-  "recommendations": ["biomejs.biome"]
+  "recommendations": ["biomejs.biome", "ms-playwright.playwright"]
 }

package.json

@@ -17,6 +17,7 @@
   "devDependencies": {
     "@biomejs/biome": "^1.9.4",
     "@happy-dom/global-registrator": "^15.7.4",
+    "@playwright/test": "next",
     "@testing-library/dom": "^10.4.0",
     "@testing-library/react": "^16.0.1",
     "@types/bun": "^1.1.12",

playwright.config.ts

@@ -0,0 +1,79 @@
+import { defineConfig, devices } from "@playwright/test"
+
+/**
+ * Read environment variables from file.
+ * https://github.com/motdotla/dotenv
+ */
+// import dotenv from 'dotenv';
+// import path from 'path';
+// dotenv.config({ path: path.resolve(__dirname, '.env') });
+
+/**
+ * See https://playwright.dev/docs/test-configuration.
+ */
+export default defineConfig({
+  testDir: "./test/e2e",
+  /* Run tests in files in parallel */
+  fullyParallel: true,
+  /* Fail the build on CI if you accidentally left test.only in the source code. */
+  forbidOnly: !!process.env.CI,
+  /* Retry on CI only */
+  retries: process.env.CI ? 2 : 0,
+  /* Opt out of parallel tests on CI. */
+  workers: process.env.CI ? 1 : undefined,
+  /* Reporter to use. See https://playwright.dev/docs/test-reporters */
+  reporter: "html",
+  /* Shared settings for all the projects below. See https://playwright.dev/docs/api/class-testoptions. */
+  use: {
+    /* Base URL to use in actions like `await page.goto('/')`. */
+    baseURL: "http://127.0.0.1:3000",
+
+    /* Collect trace when retrying the failed test. See https://playwright.dev/docs/trace-viewer */
+    trace: "on-first-retry",
+  },
+
+  /* Configure projects for major browsers */
+  projects: [
+    {
+      name: "chromium",
+      use: { ...devices["Desktop Chrome"] },
+    },
+
+    {
+      name: "firefox",
+      use: { ...devices["Desktop Firefox"] },
+    },
+
+    {
+      name: "webkit",
+      use: { ...devices["Desktop Safari"] },
+    },
+
+    /* Test against mobile viewports. */
+    // {
+    //   name: 'Mobile Chrome',
+    //   use: { ...devices['Pixel 5'] },
+    // },
+    // {
+    //   name: 'Mobile Safari',
+    //   use: { ...devices['iPhone 12'] },
+    // },
+
+    /* Test against branded browsers. */
+    // {
+    //   name: 'Microsoft Edge',
+    //   use: { ...devices['Desktop Edge'], channel: 'msedge' },
+    // },
+    // {
+    //   name: 'Google Chrome',
+    //   use: { ...devices['Desktop Chrome'], channel: 'chrome' },
+    // },
+  ],
+
+  /* Run your local dev server before starting the tests */
+  webServer: {
+    command: "bun .next/standalone/server.js",
+    url: "http://127.0.0.1:3000",
+    reuseExistingServer: !process.env.CI,
+  },
+})

test/e2e/index.test.ts

@@ -0,0 +1,8 @@
+import { expect, test } from "@playwright/test"
+
+test("has title", async ({ page }) => {
+  await page.goto("/")
+
+  // Expect a title "to contain" a substring.
+  await expect(page).toHaveTitle(/ラズネージ/)
+})