feat: Establish Playwright testing infrastructure with initial tests for authentication, admin, and instructor modules, and fix instructor video and quiz lesson management pages.

frontend_management/playwright.config.ts

@@ -0,0 +1,93 @@
+import { defineConfig, devices } from '@playwright/test';
+import { fileURLToPath } from 'url';
+import path from 'path';
+
+const __dirname = path.dirname(fileURLToPath(import.meta.url));
+
+/**
+ * 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: './tests',
+  /* Run tests in files in parallel */
+  timeout: 60000,                   // timeout ต่อ test (ms)
+  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,
+  workers: 1,
+
+  /* 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: {
+    baseURL: 'http://localhost:3000/',// ปรับเป็น URL ที่ทดสอบ
+    headless: false,                  // false = เห็น browser ขณะรัน
+    screenshot: 'only-on-failure',   // เก็บ screenshot เมื่อ fail
+    trace: 'retain-on-failure',       // เก็บ trace เพื่อดีบักเมื่อ fail
+    // launchOptions: {
+    //   slowMo: 1000,
+    // },          // ช้าลง 10 วินาที
+  },
+
+  /* ──── Setup Projects: login ครั้งเดียว แล้ว save cookies ──── */
+  projects: [
+    {
+      name: 'admin-setup',
+      testMatch: /admin\.setup\.ts/,
+      testDir: './tests',
+    },
+    {
+      name: 'instructor-setup',
+      testMatch: /instructor\.setup\.ts/,
+      testDir: './tests',
+    },
+
+    /* ──── Auth tests: ไม่ต้อง login ก่อน ──── */
+    {
+      name: 'auth-tests',
+      testDir: './tests/auth',
+      use: { ...devices['Desktop Chrome'] },
+    },
+
+    /* ──── Admin tests: ใช้ cookies จาก admin-setup ──── */
+    {
+      name: 'admin-tests',
+      testDir: './tests/admin',
+      use: {
+        ...devices['Desktop Chrome'],
+        storageState: path.resolve(__dirname, 'tests/.auth/admin.json'),
+      },
+      dependencies: ['admin-setup'],
+    },
+
+    /* ──── Instructor tests: ใช้ cookies จาก instructor-setup ──── */
+    {
+      name: 'instructor-tests',
+      testDir: './tests/instructor',
+      use: {
+        ...devices['Desktop Chrome'],
+        storageState: path.resolve(__dirname, 'tests/.auth/instructor.json'),
+      },
+      dependencies: ['instructor-setup'],
+    },
+  ],
+
+  /* Run your local dev server before starting the tests */
+  // webServer: {
+  //   command: 'npm run start',
+  //   url: 'http://localhost:3000',
+  //   reuseExistingServer: !process.env.CI,
+  // },
+});