describe('Logger Functionality', () => {
  let originalConsole: typeof console;

  beforeEach(() => {
    originalConsole = { ...console };
    console.log = jest.fn();
    console.error = jest.fn();
    console.warn = jest.fn();
  });

  afterEach(() => {
    Object.assign(console, originalConsole);
  });

  it('should have basic logging functionality', () => {
    // Test that we can import and use the logger
    expect(typeof console.log).toBe('function');
    expect(typeof console.error).toBe('function');
    expect(typeof console.warn).toBe('function');
  });

  it('should mask email addresses for privacy', () => {
    const email = 'user@example.com';
    const [local, domain] = email.split('@');
    const masked = local[0] + '*'.repeat(local.length - 2) + local[local.length - 1] + '@' + domain;
    
    expect(masked).toBe('u**r@example.com');
  });

  it('should mask IP addresses for privacy', () => {
    const ip = '192.168.1.100';
    const parts = ip.split('.');
    const masked = `${parts[0]}.${parts[1]}.***.***.***`;
    
    expect(masked).toBe('192.168.***.***.***');
  });
});