Question

我有一个ApplicationProperties，可以在服务中使用它。当我在测试中模拟其余模板以测试该服务时，结果为java.lang.NullPointerException，当我用网址替换applicationProperties.getBebusiness().getEndPointProvider()时，测试通过了

@Configuration
@ConfigurationProperties(prefix = "application", ignoreUnknownFields = false)
public class ApplicationProperties { ...
}


@Service
public class ProviderServiceImpl implements ProviderService {

    private final ApplicationProperties applicationProperties;

    private final RestTemplate restTemplate;

    public ProviderServiceImpl(ApplicationProperties applicationProperties, RestTemplate restTemplater) {
        this.applicationProperties = applicationProperties;
        this.restTemplate = restTemplate;
    }

    @Override
    public List <ProviderDTO> getAllProviderFromBebusiness() {
        final List <ProviderDTO> result = new ArrayList<>();
        final ResponseEntity <String> responseEntity = restTemplate.getForEntity(
            applicationProperties.getBebusiness().getEndPointProvider() + "&page=0&size=" + Integer.MAX_VALUE, String.class);
        if (responseEntity.getStatusCodeValue() == 200) {}
        return result;
    }

}


public class ProviderServiceTest {

    @Autowired
    private ApplicationProperties applicationProperties;

    @Rule
    public MockitoRule mockitoRule = MockitoJUnit.rule();

    @InjectMocks
    private ProviderServiceImpl providerService;

    @Test
    public void givenMockingIsDoneByMockito_whenGetIsCalled_shouldReturnMockedObject() {
        String provider = providerInit.buildProviderDTOWithIdFromBebusiness();
        ResponseEntity <String> responseEntity = new ResponseEntity <String> (provider, HttpStatus.OK);
        when(restTemplate.getForEntity(anyString(), ArgumentMatchers.any(Class.class)))
            .thenReturn(responseEntity);
        List<ProviderDTO> result = providerService.getAllProviderFromBebusiness();
        assertEquals(200, responseEntity.getStatusCodeValue());
    }

}

Answer 1

似乎您的spring bean没有实例化。您必须注释测试类，以告诉spring它必须初始化其上下文。尝试使用@SpringBootTest批注

Answer 2

您可以使用import * as x from 'vue/dist/helper.js'; import { something } from 'vue/dist/helper.js';批注，或者如果您不想运行Spring Boot上下文，则可以如下模拟您的配置类：

@SpringBootTest(webEnvironment = SpringBootTest.WebEnvironment.RANDOM_PORT)

Answer 3

您可以使用

@TestPropertySource(locations = "/other-location.properties")

或

@TestPropertySource(properties = "spring.datasource.max-active=30,
spring.datasource.initial-size=5")

这是一个例子：https://www.logicbig.com/tutorials/spring-framework/spring-core/test-property-source-with-inlined-properties.html

在测试中使用ConfigurationProperties

3 个答案: