Java Mockito thenThrow 抛出 mockito 异常
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Mockito thenThrow throws mockito exception
提问by Kacper
I'm tring to mock restOperation to throw exception but i get MockitoException instead of taking proper exception. It's weird for me because when i trying to test happy path almost the same mock invoke works fine. What is wrong with that:
我试图模拟 restOperation 抛出异常，但我得到 MockitoException 而不是采取适当的异常。这对我来说很奇怪，因为当我尝试测试快乐路径时，几乎相同的模拟调用工作正常。这有什么问题：
Working mock:
工作模拟：
Mockito.when(restOperations.exchange(
Mockito.anyString(), Mockito.<HttpMethod>any(), Mockito.<HttpEntity<?>>any(),
Mockito.<Class<UserByRoleHolder>>any())).thenReturn(new ResponseEntity<>(userByRoleHolder, HttpStatus.OK));
Mock throwing MockitoException:
模拟抛出 MockitoException：
Mockito.when(restOperations.exchange(
Mockito.anyString(), Mockito.<HttpMethod>any(), Mockito.<HttpEntity<?>>any(),
Mockito.<Class<UserByRoleHolder>>any())).thenThrow(new ConnectException("Test exception"));
Here is my method implementation:
这是我的方法实现：
ResponseEntity<UserByRoleHolder> entity = null;
try {
entity = restOperations.exchange(userProfileUrl, HttpMethod.GET,
authorizedHttpEntityFactory.getAuthorizedHttpEntity(null), UserByRoleHolder.class);
} catch (RestClientException e) {
throw new ConnectException(e.getMessage());
}
return entity.getBody();
Stack trace:
堆栈跟踪：
Unexpected exception, expected<java.net.ConnectException> but was<org.mockito.exceptions.base.MockitoException>
java.lang.Exception: Unexpected exception, expected<java.net.ConnectException> but was<org.mockito.exceptions.base.MockitoException>
at org.junit.internal.runners.statements.ExpectException.evaluate(ExpectException.java:28)
at org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:26)
at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:325)
at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:78)
at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:57)
at org.junit.runners.ParentRunner.run(ParentRunner.java:290)
at org.junit.runners.ParentRunner.schedule(ParentRunner.java:71)
at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288)
at org.junit.runners.ParentRunner.accessMockito.when(restOperations.exchange(
Mockito.anyString(), Mockito.<HttpMethod>any(), Mockito.<HttpEntity<?>>any(),
Mockito.<Class<UserByRoleHolder>>any())).thenThrow(new RestClientException("Test exception"));
0(ParentRunner.java:58)
at org.junit.runners.ParentRunner.evaluate(ParentRunner.java:268)
at org.junit.runners.ParentRunner.run(ParentRunner.java:363)
at org.mockito.internal.runners.JUnit45AndHigherRunnerImpl.run(JUnit45AndHigherRunnerImpl.java:37)
at org.mockito.runners.MockitoJUnitRunner.run(MockitoJUnitRunner.java:62)
at org.gradle.api.internal.tasks.testing.junit.JUnitTestClassExecuter.runTestClass(JUnitTestClassExecuter.java:86)
at org.gradle.api.internal.tasks.testing.junit.JUnitTestClassExecuter.execute(JUnitTestClassExecuter.java:49)
at org.gradle.api.internal.tasks.testing.junit.JUnitTestClassProcessor.processTestClass(JUnitTestClassProcessor.java:69)
at org.gradle.api.internal.tasks.testing.SuiteTestClassProcessor.processTestClass(SuiteTestClassProcessor.java:48)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:497)
at org.gradle.messaging.dispatch.ReflectionDispatch.dispatch(ReflectionDispatch.java:35)
at org.gradle.messaging.dispatch.ReflectionDispatch.dispatch(ReflectionDispatch.java:24)
at org.gradle.messaging.dispatch.ContextClassLoaderDispatch.dispatch(ContextClassLoaderDispatch.java:32)
at org.gradle.messaging.dispatch.ProxyDispatchAdapter$DispatchingInvocationHandler.invoke(ProxyDispatchAdapter.java:93)
at com.sun.proxy.$Proxy2.processTestClass(Unknown Source)
at org.gradle.api.internal.tasks.testing.worker.TestWorker.processTestClass(TestWorker.java:105)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:497)
at org.gradle.messaging.dispatch.ReflectionDispatch.dispatch(ReflectionDispatch.java:35)
at org.gradle.messaging.dispatch.ReflectionDispatch.dispatch(ReflectionDispatch.java:24)
at org.gradle.messaging.remote.internal.hub.MessageHub$Handler.run(MessageHub.java:360)
at org.gradle.internal.concurrent.DefaultExecutorFactory$StoppableExecutorImpl.run(DefaultExecutorFactory.java:64)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at java.lang.Thread.run(Thread.java:745)
Caused by: org.mockito.exceptions.base.MockitoException:
Checked exception is invalid for this method!
Invalid: java.net.ConnectException: Test exception
at com.stanleyblackanddecker.toolboxcore.gateway.AuthGatewayTest.testGetAllUsersNoAuthPresent(AuthGatewayTest.java:215)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:497)
at org.junit.runners.model.FrameworkMethod.runReflectiveCall(FrameworkMethod.java:50)
at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:47)
at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)
at org.junit.internal.runners.statements.ExpectException.evaluate(ExpectException.java:19)
... 37 more
采纳答案by Kacper
Caused by: org.mockito.exceptions.base.MockitoException: Checked exception is invalid for this method! Invalid: java.net.ConnectException: Test exception
引起：org.mockito.exceptions.base.MockitoException：此方法的检查异常无效！无效：java.net.ConnectException：测试异常
As stated by the exception message (and told in comments), you have to throw a RestClientException, not a ConnectException:
如异常消息所述（并在评论中说明），您必须抛出 a RestClientException，而不是 a ConnectException：
You get this error message, because the method exchangedeclares no thrown exception and ConnectExceptionis a checked exception(i.e. must be declared when thrown).
您收到此错误消息，因为该方法exchange声明没有抛出异常并且ConnectException是一个已检查异常（即必须在抛出时声明）。
