frontend/tests/setup.js

/**
 * Vitest Setup File
 * Konfiguration für Test-Umgebung
 */

// Global test setup
import { vi } from 'vitest'

// Mock window.matchMedia (für responsive Components)
Object.defineProperty(window, 'matchMedia', {
  writable: true,
  value: vi.fn().mockImplementation(query => ({
    matches: false,
    media: query,
    onchange: null,
    addListener: vi.fn(),
    removeListener: vi.fn(),
    addEventListener: vi.fn(),
    removeEventListener: vi.fn(),
    dispatchEvent: vi.fn(),
  })),
})

// Mock IntersectionObserver
global.IntersectionObserver = class IntersectionObserver {
  constructor() {}
  disconnect() {}
  observe() {}
  takeRecords() {
    return []
  }
  unobserve() {}
}

// Mock ResizeObserver
global.ResizeObserver = class ResizeObserver {
  constructor() {}
  disconnect() {}
  observe() {}
  unobserve() {}
}

// Suppress console errors in tests (optional)
// global.console.error = vi.fn()
// global.console.warn = vi.fn()