Какие писал тесты

@Test
public void testAdd() {
    Calculator calc = new Calculator();
    assertEquals(5, calc.add(2, 3));
}

@Test
public void testUserServiceIntegration() {
    UserService service = new UserService(userRepository);
    User user = service.createUser("test");
    assertNotNull(userRepository.findById(user.getId()));
}

@Test
public void testPaymentService() {
    PaymentGateway mockGateway = mock(PaymentGateway.class);
    when(mockGateway.process(any())).thenReturn(true);
    
    PaymentService service = new PaymentService(mockGateway);
    assertTrue(service.makePayment(100.0));
}

@Test
public void testGetUserEndpoint() {
    given()
        .when().get("/users/1")
        .then()
        .statusCode(200)
        .body("name", equalTo("John"));
}