我正在为我的REST API编写集成测试。
下面是这些类。
由于空指针异常，测试失败。当我设置调试断点并检查时，我看到在类CategoryConfiguration中，this.categoryConfigurationProperties.getValuesFromProperties()行返回null。
如何确保在测试中正确初始化CategoryConfigurationProperties并从application-category.yml文件加载值？

@RestController
public class MyController {
    @Autowired
    MyService myService;

    public ResponseEntity<MyResponse> createProduct(...) {
        myService.createProduct(...);
        ...
        return...;
    }
}

@Service
public class MyServiceImpl implements MyService {
    @Autowired
    MyProductHelper myProductHelper;

    public Product createProduct(...) {
        Category category = myProductHelper.getCategory(...);
        ...
    }
    ...
}

@Component
public class MyProductHelper {
    @Autowired
    @Qualifier("productCategoryMap")
    private Map<Product, Category> productCategoryMap;

    public Category getCategory(...) {
        return productCategoryMap.get(...);
    }
}

@Configuration
@EnableConfigurationProperties(CategoryConfigurationProperties.class)
public class CategoryConfiguration {
    private final CategoryConfigurationProperties categoryConfigurationProperties;

    public CategoryConfiguration(CategoryConfigurationProperties categoryConfigurationProperties) {
        this.categoryConfigurationProperties = categoryConfigurationProperties;
    }

    @Bean(name = "productCategoryMap")
    public Map<Product, Category> productCategoryMap() {
        this.categoryConfigurationProperties.getValuesFromProperties();
        ...
        return ...;
    }
    ...
}

@EnableConfigurationProperties
@ConfigurationProperties(prefix = "my-config")
@AllArgsConstructor
@Getter
public class CategoryConfigurationProperties {
    Map<String,Map<String,List<String>>> valuesFromProperties;
}

@ExtendWith({SpringExtension.class,MockitoExtension.class})
@SpringBootTest(classes = {MyApplication.class},webEnvironment = SpringBootTest.WebEnvironment.RANDOM_PORT)
@ContextConfiguration(classes = CategoryConfiguration.class)
@ActiveProfiles(profiles = "test")
@AutoConfigureMockMvc
@TestPropertySource(properties = {"spring.config.location=classpath:application-category.yml,classpath:application.properties"})
class MyControllerIntegrationTest {
    @Autowired
    private MockMvc mockMvc;

    @Autowired
    WebApplicationContext webApplicationContext;

    @MockBean
    CategoryConfiguration categoryConfiguration;

    @BeforeEach
    public void setup() {
        ...
    }

    @Test
    void testCreateProduct() {
        MvcResult result = mockMvc.perform(...);
        // assert
    }
}