ProductRepositoryTest.java

@ExtendWith(SpringExtension.class)
public class ProductRepositoryTest {

    @Autowired
    private ProductRepository productRepository;

    @Autowired
    private TestEntityManager testEntityManager;

    @Test
    public void it_should_update_name() {
        //Given
        Clock.freeze();
        LocalDateTime now = LocalDateTime.now();
        Product product = Product.builder()
                .name("product")
                .id(1)
                .build();
        testEntityManager.persistAndFlush(product);

        //When
        productRepository.updateName(1, "product_new");
        testEntityManager.clear();

        //Then
        assertThat(productRepository.findById(product.getId()).map(Product::getId)).contains(1);
        Clock.unfreeze();
    }
}