[英]Spring boot mocking static methods with PowerMock in Integration test
我正在SpringBoot的RestController上编写集成测试。 通常我将使用SpringRunner.class运行,但是当涉及到Mock静态方法时,我需要使用PowerMock。
奇怪的事实是,当我运行单个测试时,它们分别通过(但返回错误消息),当我尝试运行整个测试类时,没有测试通过,并且返回相同的错误消息。
@RunWith(PowerMockRunner.class)
@PrepareForTest({JwtUtils.class})
//@PowerMockRunnerDelegate(SpringRunner.class) THIS DOESN'T WORK!!!
@SpringBootTest(classes = SpringBootJwtApplication.class)
public class RestAccessIntegrationTest {
@Autowired @InjectMocks
RestController restController;
@Mock
HttpServletRequest request;
@Test
public void operationsPerAccountWhenSuccessfulTest(){
mockStatic(JwtUtils.class);
when(JwtUtils.myMethod(request)).thenReturn("blabla");
String expected = ... ;
String actual = restController.getOperations();
assertEquals(actual, expected);
}
}
如果我运行测试或整个类,则会收到以下类型的错误:
线程“ main”中的异常java.lang.NoSuchMethodError:org.powermock.api.mockito.internal.mockcreation.MockCreator.mock(MockCreator.java:org.powermock.core.MockRepository.addAfterMethodRunner(Ljava / lang / Runnable;) 50)
如果我取消注释@PowerMockRunnerDelegate(SpringRunner.class),则会出现此其他错误:
线程“主”中的异常java.lang.NoClassDefFoundError:org / powermock / core / testlisteners / GlobalNotificationBuildSupport $ Callback at org.powermock.modules.junit4.internal.impl.DelegatingPowerMockRunner.run(DelegatingPowerMockRunner.java:139)
在when
方法中,尝试使用any(HttpServletRequest.class)
代替request
模拟对象。 还可以使用MockHttpServletRequest
而不是模拟HttpServletRequest
。 这应该工作,
@RunWith(PowerMockRunner.class)
@PrepareForTest(JwtUtils.class)
@PowerMockIgnore( {"javax.management.*"})
public class RestAccessIntegrationTest {
@InjectMocks
private RestController restController;
private MockHttpServletRequest request;
@Before
public void setUp() {
MockitoAnnotations.initMocks(this);
request = new MockHttpServletRequest();
RequestContextHolder.setRequestAttributes(
new ServletRequestAttributes(request));
}
@Test
public void operationsPerAccountWhenSuccessfulTest() {
mockStatic(JwtUtils.class);
when(JwtUtils.myMethod(any(HttpServletRequest.class)))
.thenReturn("blabla");
String expected = ... ;
// does your getOperations take HttpServletRequest
// as parameter, then controller.getOperations(request);
String actual = restController.getOperations();
assertEquals(actual, expected);
}
}
这是由于PowerMock和Mockito的库版本不兼容。 我建议检查PowerMock团队提供的兼容性版本表,或切换到JMockit以模拟静态和私有方法。
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