Mocking von Next.js Cookies und Request-Headern in Integrationstests

export function createMockCookieStore(initialCookies = {}) {
  const store = new Map(Object.entries(initialCookies));
  return {
    get: (name) => store.has(name) ? { name, value: store.get(name) } : undefined,
    set: (name, value) => store.set(name, value),
    has: (name) => store.has(name)
  };
}
 
export function executeWithMockCookies(actionFn, mockData) {
  const mockStore = createMockCookieStore(mockData);
  try {
    return actionFn(mockStore);
  } catch (error) {
    throw new Error(`Test fixture failure: ${error.message}`);
  }
}