我正在使用Mockito进行我的单元测试,并且我发现了在间谍对象上抛出异常的问题。我之前已经在这个对象上完成了这个(在不同的测试用例中它起作用)。 这是测试代码:
@Test
public void callInitiated_FsmInitializationException() throws FsmInitializationException, Exception {
MocSbb moc = Mockito.spy(testObj);
MocTracer tracer = Mockito.mock(MocTracer.class);
Mockito.doReturn(tracer).when(moc).getTracer();
CAP2InitialDPArg idp = Mockito.mock(CAP2InitialDPArg.class);
MocFsm mocFsm = Mockito.mock(MocFsm.class);
//Mockito.doReturn(mocFsm).when(moc).getSs7Fsm();
TicketingLocalInterface ticketing = mockTicketingLocalInterface();
CAP2InitialDPArgWrap idpWrap = Mockito.mock(CAP2InitialDPArgWrap.class);
PowerMockito.whenNew(CAP2InitialDPArgWrap.class).withArguments(idp, tracer).thenReturn(idpWrap);
MocSession mocSession = Mockito.mock(MocSession.class);
Mockito.doReturn(mocSession).when(moc).getMocSession();
Mockito.when(moc.getSs7Fsm()).thenThrow(new FsmInitializationException()); ////HERE'S THE PROBLEM
moc.callInitiated(idp);
verify(moc).getFailedFsm();
}
这是抛出异常的方法:
protected MocFsm getSs7Fsm() throws FsmInitializationException {
mocFsm.setContextProvider(getMocLocalObject());
return mocFsm;
}
我在测试执行期间得到的错误如下所示:
Testcase: callInitiated_FsmInitializationException(com.nsn.as.ccs.moc.sbb.MocSbbTest): Caused an ERROR
Checked exception is invalid for this method!
Invalid: com.nsn.as.ccs.moc.fsm.FsmInitializationException
org.mockito.exceptions.base.MockitoException:
Checked exception is invalid for this method!
Invalid: com.nsn.as.ccs.moc.fsm.FsmInitializationException
at com.nsn.as.ccs.moc.sbb.MocSbbTest.callInitiated_FsmInitializationException(MocSbbTest.java:1194)
at org.powermock.modules.junit4.internal.impl.PowerMockJUnit44RunnerDelegateImpl$PowerMockJUnit44MethodRunner.runTestMethod(PowerMockJUnit44RunnerDelegateImpl.java:322)
at org.powermock.modules.junit4.internal.impl.PowerMockJUnit44RunnerDelegateImpl$PowerMockJUnit44MethodRunner.executeTest(PowerMockJUnit44RunnerDelegateImpl.java:309)
at org.powermock.modules.junit4.internal.impl.PowerMockJUnit47RunnerDelegateImpl$PowerMockJUnit47MethodRunner.executeTestInSuper(PowerMockJUnit47RunnerDelegateImpl.java:112)
at org.powermock.modules.junit4.internal.impl.PowerMockJUnit47RunnerDelegateImpl$PowerMockJUnit47MethodRunner.executeTest(PowerMockJUnit47RunnerDelegateImpl.java:73)
at org.powermock.modules.junit4.internal.impl.PowerMockJUnit44RunnerDelegateImpl$PowerMockJUnit44MethodRunner.runBeforesThenTestThenAfters(PowerMockJUnit44RunnerDelegateImpl.java:297)
at org.powermock.modules.junit4.internal.impl.PowerMockJUnit44RunnerDelegateImpl.invokeTestMethod(PowerMockJUnit44RunnerDelegateImpl.java:222)
at org.powermock.modules.junit4.internal.impl.PowerMockJUnit44RunnerDelegateImpl.runMethods(PowerMockJUnit44RunnerDelegateImpl.java:161)
at org.powermock.modules.junit4.internal.impl.PowerMockJUnit44RunnerDelegateImpl$1.run(PowerMockJUnit44RunnerDelegateImpl.java:135)
at org.powermock.modules.junit4.internal.impl.PowerMockJUnit44RunnerDelegateImpl.run(PowerMockJUnit44RunnerDelegateImpl.java:133)
at org.powermock.modules.junit4.common.internal.impl.JUnit4TestSuiteChunkerImpl.run(JUnit4TestSuiteChunkerImpl.java:112)
at org.powermock.modules.junit4.common.internal.impl.AbstractCommonPowerMockRunner.run(AbstractCommonPowerMockRunner.java:57)
有没有人知道为什么它在这种情况下不起作用?
答案 0 :(得分:8)
我终于找到了解决这个问题的方法。
我们使用了一个扩展原始Sbb
类的匿名类,该类已经过测试,并且在此扩展类中实现了上述方法,并且删除了throws
表达式,这导致了问题。
我应该更仔细地阅读我的同事代码。
答案 1 :(得分:3)
我觉得解决方案是使用doThrow()语法而不是when()。thenThrow()。间谍时,使用doThrow / doReturn语法进行存根更安全。原因在文档中有所描述:http://docs.mockito.googlecode.com/hg/org/mockito/Mockito.html#13
我认为我们可以在此实例中改进异常消息,使其为m
答案 2 :(得分:1)
遵循this answer。使用 Mockito 的 doAnswer
而不是 thenThrow
方法解决了我的问题。
Mockito.doAnswer(
invocation -> {
throw new Exception("Something went wrong");
})
.when(moc)
.getSs7Fsm();
我知道为时已晚,但以防万一有人面临同样的问题。
答案 3 :(得分:0)
我知道这篇文章很老但我的解决方案可能对某人有所帮助: 我通过将我的方法的可见性更改为公共来解决了同样的错误。
在这种情况下,你应该有改变
protected MocFsm getSs7Fsm() throws FsmInitializationException {
...
}
到
public MocFsm getSs7Fsm() throws FsmInitializationException {
...
}