通过一次测试调用JUnit setUp两次,并搞乱Powermock expectNew

Question

在我的测试中非常奇怪的行为.

  public class MyTestclass {
     @Before
     void setUp(){
        //do some setup, but hu i get called twice
        //here i do some try catch thing to get the stacktrace...
     }

     void testOnlyOneTest(){
        //make the testing, i get called only once
     }

     @After
     void tearDown(){
        //do some destroy things,... i get called twice too
     }
  }

堆栈跟踪:

  1)
  MyTestClassTest.setUp() line: 85          
  NativeMethodAccessorImpl.invoke0(Method, Object, Object[]) line: not available [native method]   
  NativeMethodAccessorImpl.invoke(Object, Object[]) line: 39  
  DelegatingMethodAccessorImpl.invoke(Object, Object[]) line: 25         
  Method.invoke(Object, Object...) line: 597        
  PowerMockJUnit44RunnerDelegateImpl$PowerMockJUnit44MethodRunner(MethodRoadie).runBefores() line: 129                
  PowerMockJUnit44RunnerDelegateImpl$PowerMockJUnit44MethodRunner(MethodRoadie).runBeforesThenTestThenAfters(Runnable) line: 93 
  PowerMockJUnit44RunnerDelegateImpl$PowerMockJUnit44MethodRunner.executeTest(Method, Object, Runnable) line: 294               
  PowerMockJUnit44RunnerDelegateImpl$PowerMockJUnit44MethodRunner.runBeforesThenTestThenAfters(Runnable) line: 282               
  PowerMockJUnit44RunnerDelegateImpl$PowerMockJUnit44MethodRunner(MethodRoadie).runTest() line: 84          
  PowerMockJUnit44RunnerDelegateImpl$PowerMockJUnit44MethodRunner(MethodRoadie).run() line: 49   
  PowerMockJUnit44RunnerDelegateImpl.invokeTestMethod(Method, RunNotifier) line: 207  
  PowerMockJUnit44RunnerDelegateImpl.runMethods(RunNotifier) line: 146   
  PowerMockJUnit44RunnerDelegateImpl$1.run() line: 120         
  ClassRoadie.runUnprotected() line: 34 
  ClassRoadie.runProtected() line: 44       
  PowerMockJUnit44RunnerDelegateImpl.run(RunNotifier) line: 118      
  JUnit4TestSuiteChunkerImpl.run(RunNotifier) line: 102              
  PowerMockRunner(AbstractCommonPowerMockRunner).run(RunNotifier) line: 53   
  JUnit4TestClassReference(JUnit4TestReference).run(TestExecution) line: 46  
  TestExecution.run(ITestReference[]) line: 38    
  RemoteTestRunner.runTests(String[], String, TestExecution) line: 467 
  RemoteTestRunner.runTests(TestExecution) line: 683 
  RemoteTestRunner.run() line: 390         
  RemoteTestRunner.main(String[]) line: 197       

  2)
  MyTestClassTest.setUp() line: 85          
  NativeMethodAccessorImpl.invoke0(Method, Object, Object[]) line: not available [native method]   
  NativeMethodAccessorImpl.invoke(Object, Object[]) line: 39  
  DelegatingMethodAccessorImpl.invoke(Object, Object[]) line: 25         
  Method.invoke(Object, Object...) line: 597        
  WhiteboxImpl.performMethodInvocation(Object, Method, Object...) line: 2014           
  WhiteboxImpl.doInvokeMethod(Object, Class<?>, String, Object...) line: 885  
  WhiteboxImpl.invokeMethod(Object, String, Object...) line: 713            
  Whitebox.invokeMethod(Object, String, Object...) line: 401     
  PowerMockJUnit44RunnerDelegateImpl$PowerMockJUnit44MethodRunner.runTestMethod() line: 305         
  MethodRoadie$2.run() line: 86                
  PowerMockJUnit44RunnerDelegateImpl$PowerMockJUnit44MethodRunner(MethodRoadie).runBeforesThenTestThenAfters(Runnable) line: 94 
  PowerMockJUnit44RunnerDelegateImpl$PowerMockJUnit44MethodRunner.executeTest(Method, Object, Runnable) line: 294               
  PowerMockJUnit44RunnerDelegateImpl$PowerMockJUnit44MethodRunner.runBeforesThenTestThenAfters(Runnable) line: 282               
  PowerMockJUnit44RunnerDelegateImpl$PowerMockJUnit44MethodRunner(MethodRoadie).runTest() line: 84          
  PowerMockJUnit44RunnerDelegateImpl$PowerMockJUnit44MethodRunner(MethodRoadie).run() line: 49   
  PowerMockJUnit44RunnerDelegateImpl.invokeTestMethod(Method, RunNotifier) line: 207  
  PowerMockJUnit44RunnerDelegateImpl.runMethods(RunNotifier) line: 146   
  PowerMockJUnit44RunnerDelegateImpl$1.run() line: 120         
  ClassRoadie.runUnprotected() line: 34 
  ClassRoadie.runProtected() line: 44       
  PowerMockJUnit44RunnerDelegateImpl.run(RunNotifier) line: 118      
  JUnit4TestSuiteChunkerImpl.run(RunNotifier) line: 102              
  PowerMockRunner(AbstractCommonPowerMockRunner).run(RunNotifier) line: 53   
  JUnit4TestClassReference(JUnit4TestReference).run(TestExecution) line: 46  
  TestExecution.run(ITestReference[]) line: 38    
  RemoteTestRunner.runTests(String[], String, TestExecution) line: 467 
  RemoteTestRunner.runTests(TestExecution) line: 683 
  RemoteTestRunner.run() line: 390         
  RemoteTestRunner.main(String[]) line: 197       

为什么我的setUp被调用两次的任何想法？

我在setUp中做了一些嘲弄,经过验证后我得到了2次调用1次,所以我的测试失败了.

我正在使用powermock 1.4.8,junit 4.4和easymock框架

Answer 1

你的班级是否扩展了TestCase？它似乎不在示例中,但我只是想想可能导致这种情况的原因.如果它没有那么它会忽略注释,并考虑每一个字开头的方法测试的测试用例导致你可能有更多的测试比你想象的.