Průvodce testováním

# Install dependencies
npm install

# Install Playwright browsers (first time only)

npx playwright install

// vitest.config.ts
import { defineConfig } from 'vitest/config'

export default defineConfig({
  test: {
    globals: true,
    environment: 'node',
    include: ['src/**/*.{test,spec}.{js,mjs,cjs,ts,mts,cts,jsx,tsx}'],
    exclude: ['node_modules', 'dist', '.next'],
    coverage: {
      provider: 'v8',
      reporter: ['text', 'json', 'html'],
      include: ['src/**/*.{js,ts}'],
      exclude: [
        'src/**/*.{test,spec}.{js,ts}',
        'src/**/*.d.ts',
        'src/scripts/**',
        'src/templates/**'
      ],
      thresholds: {
        global: {
          branches: 90,
          functions: 90,
          lines: 90,
          statements: 90
        }
      }
    }
  },
})

import { describe, it, expect, beforeEach, vi } from 'vitest'
import {
  CacheService,
  createCacheService,
  getCacheService,
  clearAllCaches,
  getAllCacheStats
} from '../services/cache.js'
import {
  CACHE_CONFIGS,
  getCacheConfig,
  generateCacheKey,
  parseCacheKey,
  hashQueryParams,
  createCachePattern
} from '../services/cache-config.js'

describe('CacheConfig', () => {
it('should have predefined cache configurations', () => {
expect(CACHE_CONFIGS.content).toBeDefined()
expect(CACHE_CONFIGS.user).toBeDefined()
expect(CACHE_CONFIGS.config).toBeDefined()
expect(CACHE_CONFIGS.media).toBeDefined()
})

  it('should generate cache key with correct format', () => {
    const key = generateCacheKey('content', 'post', '123', 'v1')
    expect(key).toBe('content:post:123:v1')
  })

  it('should parse cache key correctly', () => {
    const key = 'content:post:123:v1'
    const parsed = parseCacheKey(key)

    expect(parsed).toBeDefined()
    expect(parsed?.namespace).toBe('content')
    expect(parsed?.type).toBe('post')
    expect(parsed?.identifier).toBe('123')
    expect(parsed?.version).toBe('v1')
  })

  it('should hash query parameters consistently', () => {
    const params1 = { limit: 10, offset: 0, sort: 'asc' }
    const params2 = { offset: 0, limit: 10, sort: 'asc' }

    const hash1 = hashQueryParams(params1)
    const hash2 = hashQueryParams(params2)

    expect(hash1).toBe(hash2) // Order shouldn't matter
  })

})

describe('CacheService - Basic Operations', () => {
let cache: CacheService

  beforeEach(() => {
    const config = {
      ttl: 60,
      kvEnabled: false,
      memoryEnabled: true,
      namespace: 'test',
      invalidateOn: [],
      version: 'v1'
    }
    cache = createCacheService(config)
  })

  it('should set and get value from cache', async () => {
    await cache.set('test:key', 'value')
    const result = await cache.get('test:key')

    expect(result).toBe('value')
  })

  it('should return null for non-existent key', async () => {
    const result = await cache.get('non-existent')
    expect(result).toBeNull()
  })

  it('should delete value from cache', async () => {
    await cache.set('test:key', 'value')
    await cache.delete('test:key')

    const result = await cache.get('test:key')
    expect(result).toBeNull()
  })

})

describe('CacheService - TTL and Expiration', () => {
let cache: CacheService

  beforeEach(() => {
    const config = {
      ttl: 1, // 1 second TTL for testing
      kvEnabled: false,
      memoryEnabled: true,
      namespace: 'test',
      invalidateOn: [],
      version: 'v1'
    }
    cache = createCacheService(config)
  })

  it('should expire entries after TTL', async () => {
    await cache.set('test:key', 'value')

    // Wait for expiration
    await new Promise(resolve => setTimeout(resolve, 1100))

    const result = await cache.get('test:key')
    expect(result).toBeNull()
  })

  it('should allow custom TTL per entry', async () => {
    await cache.set('test:key', 'value', { ttl: 10 }) // 10 second TTL

    // Entry should still be there after 1 second
    await new Promise(resolve => setTimeout(resolve, 1100))

    const result = await cache.get('test:key')
    expect(result).toBe('value')
  })

})

import { vi } from 'vitest'

describe('Service with Dependencies', () => {
  it('should not call fetcher when value is cached', async () => {
    await cache.set('test:key', 'cached-value')

    const fetcher = vi.fn(async () => 'fetched-value')
    const result = await cache.getOrSet('test:key', fetcher)

    expect(result).toBe('cached-value')
    expect(fetcher).not.toHaveBeenCalled()
  })
})

// playwright.config.ts
import { defineConfig, devices } from '@playwright/test'

export default defineConfig({
testDir: './tests/e2e',
fullyParallel: true,
forbidOnly: !!process.env.CI,
retries: process.env.CI ? 2 : 0,
workers: process.env.CI ? 1 : undefined,
reporter: 'html',
globalSetup: require.resolve('./tests/e2e/global-setup.ts'),
globalTeardown: require.resolve('./tests/e2e/global-teardown.ts'),
use: {
baseURL: 'http://localhost:8787',
trace: 'on-first-retry',
screenshot: 'only-on-failure',
video: 'retain-on-failure',
},
projects: [
{
name: 'chromium',
use: { ...devices['Desktop Chrome'] },
},
],
webServer: {
command: 'npm run dev',
url: 'http://localhost:8787',
reuseExistingServer: !process.env.CI,
timeout: 120 \* 1000,
},
})

import { test, expect } from '@playwright/test'
import { checkAPIHealth } from './utils/test-helpers'

test.describe('Health Checks', () => {
  test('API health endpoint should return running status', async ({ page }) => {
    const health = await checkAPIHealth(page)

    expect(health).toHaveProperty('name', 'CatCMS AI')
    expect(health).toHaveProperty('version', '0.1.0')
    expect(health).toHaveProperty('status', 'running')
    expect(health).toHaveProperty('timestamp')
  })

  test('Home page should redirect to login', async ({ page }) => {
    const response = await page.goto('/')
    expect(response?.status()).toBe(200)

    // Should redirect to login page
    await page.waitForURL(/\/auth\/login/)

    // Verify we're on the login page
    expect(page.url()).toContain('/auth/login')
    await expect(page.locator('h2')).toContainText('Welcome Back')
  })

  test('Admin routes should require authentication', async ({ page }) => {
    // Try to access admin without auth
    await page.goto('/admin')

    // Should redirect to login
    await page.waitForURL(/\/auth\/login/)

    // Verify error message is shown
    await expect(page.locator('.bg-error\\/10')).toContainText(
      'Please login to access the admin area'
    )
  })
})

import { test, expect } from '@playwright/test'
import { loginAsAdmin, logout, isAuthenticated, ADMIN_CREDENTIALS } from './utils/test-helpers'

test.describe('Authentication', () => {
test.beforeEach(async ({ page }) => {
await logout(page)
})

  test('should display login form', async ({ page }) => {
    await page.goto('/auth/login')

    await expect(page.locator('h2')).toContainText('Welcome Back')
    await expect(page.locator('[name="email"]')).toBeVisible()
    await expect(page.locator('[name="password"]')).toBeVisible()
    await expect(page.locator('button[type="submit"]')).toBeVisible()
  })

  test('should login successfully with valid credentials', async ({ page }) => {
    await loginAsAdmin(page)

    // Should be on admin dashboard
    await expect(page).toHaveURL('/admin')
    await expect(page.locator('nav').first()).toBeVisible()
  })

  test('should show error with invalid credentials', async ({ page }) => {
    await page.goto('/auth/login')

    await page.fill('[name="email"]', 'invalid@email.com')
    await page.fill('[name="password"]', 'wrongpassword')
    await page.click('button[type="submit"]')

    // Should show error message
    await expect(page.locator('.error, .bg-red-100')).toBeVisible()
  })

  test('should maintain session across page reloads', async ({ page }) => {
    await loginAsAdmin(page)

    await page.reload()

    // Should still be authenticated
    await expect(page).toHaveURL('/admin')
    await expect(await isAuthenticated(page)).toBe(true)
  })

})

import { test, expect } from '@playwright/test'
import {
  loginAsAdmin,
  navigateToAdminSection,
  waitForHTMX,
  ensureTestContentExists
} from './utils/test-helpers'

test.describe('Content Management', () => {
  test.beforeEach(async ({ page }) => {
    await loginAsAdmin(page)
    await ensureTestContentExists(page)
    await navigateToAdminSection(page, 'content')
  })

  test('should display content list', async ({ page }) => {
    await expect(page.locator('h1').first()).toContainText('Content Management')

    // Should have filter dropdowns
    await expect(page.locator('select[name="model"]')).toBeVisible()
    await expect(page.locator('select[name="status"]')).toBeVisible()
  })

  test('should filter content by status', async ({ page }) => {
    // Filter by published status
    await page.selectOption('select[name="status"]', 'published')

    // Wait for HTMX to update the content
    await waitForHTMX(page)

    const table = page.locator('table')
    const hasTable = await table.count() > 0

    if (hasTable) {
      const publishedRows = page.locator('tr').filter({ hasText: 'published' })
      const rowCount = await publishedRows.count()
      expect(rowCount).toBeGreaterThanOrEqual(0)
    }
  })

  test('should navigate to new content form', async ({ page }) => {
    await page.click('a[href="/admin/content/new"]')

    await page.waitForURL('/admin/content/new', { timeout: 10000 })

    // Should show collection selection page
    await expect(page.locator('h1')).toContainText('Create New Content')
    await expect(page.locator('text=Select a collection to create content in:')).toBeVisible()

    // Should have at least one collection to select
    const collectionLinks = page.locator('a[href^="/admin/content/new?collection="]')
    const count = await collectionLinks.count()
    expect(count).toBeGreaterThan(0)
  })
})

import { test, expect } from '@playwright/test'

test.describe('API Endpoints', () => {
test('should return health check', async ({ request }) => {
const response = await request.get('/health')

    expect(response.ok()).toBeTruthy()

    const health = await response.json()
    expect(health).toHaveProperty('name', 'CatCMS AI')
    expect(health).toHaveProperty('version', '0.1.0')
    expect(health).toHaveProperty('status', 'running')
  })

  test('should return OpenAPI spec', async ({ request }) => {
    const response = await request.get('/api')

    expect(response.ok()).toBeTruthy()

    const spec = await response.json()
    expect(spec).toHaveProperty('openapi')
    expect(spec).toHaveProperty('info')
    expect(spec).toHaveProperty('paths')
  })

  test('should handle SQL injection attempts safely', async ({ request }) => {
    const sqlInjectionAttempts = [
      "'; DROP TABLE collections; --",
      "' OR '1'='1",
      "'; SELECT * FROM users; --",
    ]

    for (const injection of sqlInjectionAttempts) {
      const response = await request.get(
        `/api/collections/${encodeURIComponent(injection)}/content`
      )

      // Should safely return 404, not expose database errors
      expect(response.status()).toBe(404)

      const data = await response.json()
      expect(data.error).toBe('Collection not found')

      // Should not expose SQL error messages
      expect(data.error).not.toContain('SQL')
      expect(data.error).not.toContain('database')
    }
  })

})

# Run all unit tests
npm test

# Run tests in watch mode
npm run test:watch

# Run with coverage
npm run test:cov

# Run with coverage in watch mode
npm run test:cov:watch

# Run with coverage and UI
npm run test:cov:ui

# Run all E2E tests
npm run test:e2e

# Run E2E tests with UI mode

npm run test:e2e:ui

# Run specific test file

npx playwright test tests/e2e/02-authentication.spec.ts

# Run tests in headed mode (see browser)

npx playwright test --headed

# Run tests in debug mode

npx playwright test --debug

# Generate coverage report
npm run test:cov

# Coverage files are generated in:
# - coverage/index.html (HTML report)
# - coverage/coverage-final.json (JSON report)

describe('CacheService - Batch Operations', () => {
  let cache: CacheService

  beforeEach(() => {
    cache = createCacheService(CACHE_CONFIGS.content!)
  })

  it('should get multiple values at once', async () => {
    await cache.set('key1', 'value1')
    await cache.set('key2', 'value2')
    await cache.set('key3', 'value3')

    const results = await cache.getMany(['key1', 'key2', 'key3', 'key4'])

    expect(results.size).toBe(3)
    expect(results.get('key1')).toBe('value1')
    expect(results.get('key2')).toBe('value2')
    expect(results.has('key4')).toBe(false)
  })

  it('should set multiple values at once', async () => {
    await cache.setMany([
      { key: 'key1', value: 'value1' },
      { key: 'key2', value: 'value2' },
      { key: 'key3', value: 'value3' }
    ])

    const value1 = await cache.get('key1')
    const value2 = await cache.get('key2')

    expect(value1).toBe('value1')
    expect(value2).toBe('value2')
  })

})

// Authentication
export const ADMIN_CREDENTIALS = {
  email: 'admin@catcms.app',
  password: 'admin123'
}

export async function loginAsAdmin(page: Page) {
  await ensureAdminUserExists(page)

  await page.goto('/auth/login')
  await page.fill('[name="email"]', ADMIN_CREDENTIALS.email)
  await page.fill('[name="password"]', ADMIN_CREDENTIALS.password)
  await page.click('button[type="submit"]')

  await expect(page.locator('#form-response .bg-green-100')).toBeVisible()
  await page.waitForURL('/admin', { timeout: 15000 })
}

// Navigation
export async function navigateToAdminSection(
  page: Page,
  section: 'collections' | 'content' | 'media' | 'users'
) {
  await page.click(`a[href="/admin/${section}"]`)
  await page.waitForURL(`/admin/${section}`)
}

// HTMX Support
export async function waitForHTMX(page: Page) {
  try {
    await page.waitForLoadState('networkidle', { timeout: 5000 })
  } catch {
    await page.waitForTimeout(1000)
  }
}

// API Health Check
export async function checkAPIHealth(page: Page) {
  const response = await page.request.get('/health')
  expect(response.ok()).toBeTruthy()
  const health = await response.json()
  expect(health.status).toBe('running')
  return health
}

describe('CacheService - Pattern Invalidation', () => {
  it('should invalidate entries matching pattern', async () => {
    // Test implementation
  })

  it('should not invalidate entries that do not match pattern', async () => {
    // Test implementation
  })

})

describe('My Feature', () => {
  beforeEach(() => {
    // Set up fresh state for each test
    cache = createCacheService(config)
  })

  afterEach(async () => {
    // Clean up if needed
    await cache.clear()
  })
})

// Good
it('should fetch data', async () => {
  const result = await fetchData()
  expect(result).toBeDefined()
})

// Bad - missing await
it('should fetch data', async () => {
const result = fetchData() // Missing await!
expect(result).toBeDefined() // Will fail
})