thenThrow不会抛出异常

Question

我正在尝试为后置控制器编写测试用例。我想在post控制器内调用特定方法时模拟异常。但是，它根本不起作用。该函数被执行并且测试失败。

测试用例：

    @Test(expected = ControllerException.class)
    public void testUpdateModelsSapFailure() throws Exception {
        String request = getUpdateModelsRequest(SKILL_ID, modelDefinition, SKILL_VERSION);

        // Make SAP call fail with an exception
        when(mockSapModelBuilder.buildDomainDefinition())
        .thenThrow(new ControllerException(org.springframework.http.HttpStatus.BAD_REQUEST,""));

        try {
            postController.updateApplicationModels(request, DEVELOPER);
        }
        finally {
            verifyModelIsNotSaved();
            verifyAmsIsNotCalledForUpdateSkill();
            verifyAmsIsNotCalledForEnableSkill();
        }
    }

堆栈跟踪：

Testcase: testUpdateModelsSapFailure(com.dew.controller.ManagementPostControllerTest):  Caused an ERROR
    [junit] Unexpected exception, expected<com.dew.exception.ControllerException> but was<org.mockito.exceptions.verification.NeverWantedButInvoked>
    [junit] java.lang.Exception: Unexpected exception, expected<com.dew.exception.ControllerException> but was<org.mockito.exceptions.verification.NeverWantedButInvoked>
    [junit]     at org.powermock.modules.junit4.internal.impl.PowerMockJUnit44RunnerDelegateImpl$PowerMockJUnit44MethodRunner.handleException(PowerMockJUnit44RunnerDelegateImpl.java:364)
    [junit]     at org.powermock.modules.junit4.internal.impl.PowerMockJUnit47RunnerDelegateImpl$PowerMockJUnit47MethodRunner.handleException(PowerMockJUnit47RunnerDelegateImpl.java:122)
    [junit]     at org.powermock.modules.junit4.internal.impl.PowerMockJUnit44RunnerDelegateImpl$PowerMockJUnit44MethodRunner.handleInvocationTargetException(PowerMockJUnit44RunnerDelegateImpl.java:337)
    [junit]     at org.powermock.modules.junit4.internal.impl.PowerMockJUnit44RunnerDelegateImpl$PowerMockJUnit44MethodRunner.runTestMethod(PowerMockJUnit44RunnerDelegateImpl.java:315)
    [junit]     at org.powermock.modules.junit4.internal.impl.PowerMockJUnit44RunnerDelegateImpl$PowerMockJUnit44MethodRunner.executeTest(PowerMockJUnit44RunnerDelegateImpl.java:294)
    [junit]     at org.powermock.modules.junit4.internal.impl.PowerMockJUnit47RunnerDelegateImpl$PowerMockJUnit47MethodRunner.executeTestInSuper(PowerMockJUnit47RunnerDelegateImpl.java:127)
    [junit]     at org.powermock.modules.junit4.internal.impl.PowerMockJUnit47RunnerDelegateImpl$PowerMockJUnit47MethodRunner.executeTest(PowerMockJUnit47RunnerDelegateImpl.java:82)
    [junit]     at org.powermock.modules.junit4.internal.impl.PowerMockJUnit44RunnerDelegateImpl$PowerMockJUnit44MethodRunner.runBeforesThenTestThenAfters(PowerMockJUnit44RunnerDelegateImpl.java:282)
    [junit]     at org.powermock.modules.junit4.internal.impl.PowerMockJUnit44RunnerDelegateImpl.invokeTestMethod(PowerMockJUnit44RunnerDelegateImpl.java:207)
    [junit]     at org.powermock.modules.junit4.internal.impl.PowerMockJUnit44RunnerDelegateImpl.runMethods(PowerMockJUnit44RunnerDelegateImpl.java:146)
    [junit]     at org.powermock.modules.junit4.internal.impl.PowerMockJUnit44RunnerDelegateImpl$1.run(PowerMockJUnit44RunnerDelegateImpl.java:120)
    [junit]     at org.powermock.modules.junit4.internal.impl.PowerMockJUnit44RunnerDelegateImpl.run(PowerMockJUnit44RunnerDelegateImpl.java:122)
    [junit]     at org.powermock.modules.junit4.common.internal.impl.JUnit4TestSuiteChunkerImpl.run(JUnit4TestSuiteChunkerImpl.java:106)
    [junit]     at org.powermock.modules.junit4.common.internal.impl.AbstractCommonPowerMockRunner.run(AbstractCommonPowerMockRunner.java:53)
    [junit]     at org.powermock.modules.junit4.PowerMockRunner.run(PowerMockRunner.java:59)
    [junit] Caused by: org.mockito.exceptions.verification.NeverWantedButInvoked: 
    [junit] aSKModelStorageClient.saveModelDefinition(
    [junit]     <any>,
    [junit]     <any>,
    [junit]     Development,
    [junit]     DewApplicationModelDefinition(models=domain definition, testCases=test cases, Calendars=[Calendar(name=CalendarName, entities=[CalendarEntity(value=CalendarValue)])]),
    [junit]     <any>
    [junit] );
    [junit] Never wanted here:
    [junit] -> at com.dew.controller.ManagementPostControllerTest.verifyModelIsNotSaved(ManagementPostControllerTest.java:1829)
    [junit] But invoked here:
    [junit] -> at com.dew.controller.ManagementPostController.updateApplicationModels(ManagementPostController.java:1250)
    [junit] 
    [junit]     at com.dew.controller.ManagementPostControllerTest.verifyModelIsNotSaved(ManagementPostControllerTest.java:1829)
    [junit]     at com.dew.controller.ManagementPostControllerTest.testUpdateModelsSapFailure(ManagementPostControllerTest.java:863)
    [junit]     at org.powermock.modules.junit4.internal.impl.PowerMockJUnit44RunnerDelegateImpl$PowerMockJUnit44MethodRunner.runTestMethod(PowerMockJUnit44RunnerDelegateImpl.java:310)

VerifyModelIsNotSaved：

private void verifyModelIsNotSaved() throws ModelException {
    verify(mockModelStorageClient, times(0)).saveModelDefinition(anyString(), anyString(),
            anyString(), eq(modelDefinition), anyString());
}