Using afterEach for cleanup

afterEach-for-cleanup.js

describe('Error Handling Tests', () => {
  beforeEach(() => {
    jest.clearAllMocks();
  });

  afterEach(() => {
    // Restore all mocks after each test
    jest.restoreAllMocks();
  });

  it('handles network error correctly', async () => {
    const errorMessage = 'Network Error';

    axios.get.mockRejectedValue(new Error(errorMessage)); // Simulate a network error

    await expect(fetchData('https://api.example.com/user/1')).rejects.toThrow(errorMessage);
    expect(axios.get).toHaveBeenCalledWith('https://api.example.com/user/1');
  });

  it('handles server error (500) correctly', async () => {
    const errorResponse = {
      response: { status: 500, data: { message: 'Internal Server Error' } }
    };

    axios.get.mockRejectedValue(errorResponse); // Simulate a 500 error

    await expect(fetchData('https://api.example.com/user/1')).rejects.toThrow('Internal Server Error');
  });
});