PowerMockito doThrow不拋出異常

Question

我試圖測試拋出的異常，但代碼繼續返回true而不是捕獲異常並返回false。

測試類

@RunWith(PowerMockRunner.class) 
@PrepareForTest({Class1.class, Class2.class}) 
public class TestClass 
{ 

private Argument arg; 
private static Class1 mockObj1; 
private static Class2 mockObj2; 

@BeforeClass 
public static void initialSetup() 
{ 
    PowerMockito.mockStatic(Class1.class); 
    mockObj1 = PowerMockito.mock(Class1.class); 
    mockObj2 = PowerMockito.mock(Class2.class); 
} 

@Before 
public void setupForEachTest() 
{ 
    arg = new Argument(); 
} 

@Test 
public void testUpdate() throws RemoteException 
{ 
    PowerMockito.when(Class1.getDefault()).thenReturn(mockObj1); 
    PowerMockito.when(mockObj1.getClass2()).thenReturn(mockObj2); 
    PowerMockito.doThrow(new RemoteException()).when(mockObj2).save(arg); 
    assertFalse(rule.update(null, null, null, null, null, null, null, null, null, null, null)); 
} 

被測試方法

public boolean update(params) 
{ 
    try 
    {   
     Class1.getDefault().getClass2().save(args); 
    } 

    catch(RemoteException e) 
    { 
     Log.error(this, e); 
     return false; 
    } 

    return true; 
} 

我每次得到一個斷言錯誤我嘗試運行此我試圖同時做拋和thenThrow方法任何幫助將不勝感激。

編輯：

堆棧跟蹤

java.lang.AssertionError: 
    at org.junit.Assert.fail(Assert.java:91) 
    at org.junit.Assert.assertTrue(Assert.java:43) 
    at org.junit.Assert.assertFalse(Assert.java:68) 
    at org.junit.Assert.assertFalse(Assert.java:79) 
    at package.TestClass.testUpdate(TestClass.java:92) 
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) 
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) 
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) 
    at java.lang.reflect.Method.invoke(Method.java:606) 
    at org.junit.internal.runners.TestMethod.invoke(TestMethod.java:66) 
    at org.powermock.modules.junit4.internal.impl.PowerMockJUnit44RunnerDelegateImpl$PowerMockJUnit44MethodRunner.runTestMethod(PowerMockJUnit44RunnerDelegateImpl.java:326) 
    at org.junit.internal.runners.MethodRoadie$2.run(MethodRoadie.java:86) 
    at org.junit.internal.runners.MethodRoadie.runBeforesThenTestThenAfters(MethodRoadie.java:94) 
    at org.powermock.modules.junit4.internal.impl.PowerMockJUnit44RunnerDelegateImpl$PowerMockJUnit44MethodRunner.executeTest(PowerMockJUnit44RunnerDelegateImpl.java:310) 
    at org.powermock.modules.junit4.internal.impl.PowerMockJUnit47RunnerDelegateImpl$PowerMockJUnit47MethodRunner.executeTestInSuper(PowerMockJUnit47RunnerDelegateImpl.java:131) 
    at org.powermock.modules.junit4.internal.impl.PowerMockJUnit47RunnerDelegateImpl$PowerMockJUnit47MethodRunner.access$100(PowerMockJUnit47RunnerDelegateImpl.java:59) 
    at org.powermock.modules.junit4.internal.impl.PowerMockJUnit47RunnerDelegateImpl$PowerMockJUnit47MethodRunner$TestExecutorStatement.evaluate(PowerMockJUnit47RunnerDelegateImpl.java:147) 
    at org.powermock.modules.junit4.internal.impl.PowerMockJUnit47RunnerDelegateImpl$PowerMockJUnit47MethodRunner.evaluateStatement(PowerMockJUnit47RunnerDelegateImpl.java:107) 
    at org.powermock.modules.junit4.internal.impl.PowerMockJUnit47RunnerDelegateImpl$PowerMockJUnit47MethodRunner.executeTest(PowerMockJUnit47RunnerDelegateImpl.java:82) 
    at org.powermock.modules.junit4.internal.impl.PowerMockJUnit44RunnerDelegateImpl$PowerMockJUnit44MethodRunner.runBeforesThenTestThenAfters(PowerMockJUnit44RunnerDelegateImpl.java:298) 
    at org.junit.internal.runners.MethodRoadie.runTest(MethodRoadie.java:84) 
    at org.junit.internal.runners.MethodRoadie.run(MethodRoadie.java:49) 
    at org.powermock.modules.junit4.internal.impl.PowerMockJUnit44RunnerDelegateImpl.invokeTestMethod(PowerMockJUnit44RunnerDelegateImpl.java:218) 
    at org.powermock.modules.junit4.internal.impl.PowerMockJUnit44RunnerDelegateImpl.runMethods(PowerMockJUnit44RunnerDelegateImpl.java:160) 
    at org.powermock.modules.junit4.internal.impl.PowerMockJUnit44RunnerDelegateImpl$1.run(PowerMockJUnit44RunnerDelegateImpl.java:134) 
    at org.junit.internal.runners.ClassRoadie.runUnprotected(ClassRoadie.java:34) 
    at org.junit.internal.runners.ClassRoadie.runProtected(ClassRoadie.java:44) 
    at org.powermock.modules.junit4.internal.impl.PowerMockJUnit44RunnerDelegateImpl.run(PowerMockJUnit44RunnerDelegateImpl.java:136) 
    at org.powermock.modules.junit4.common.internal.impl.JUnit4TestSuiteChunkerImpl.run(JUnit4TestSuiteChunkerImpl.java:121) 
    at org.powermock.modules.junit4.common.internal.impl.AbstractCommonPowerMockRunner.run(AbstractCommonPowerMockRunner.java:57) 
    at org.powermock.modules.junit4.PowerMockRunner.run(PowerMockRunner.java:59) 
    at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:50) 
    at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38) 
    at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:467) 
    at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:683) 
    at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:390) 
    at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:197) 

保存方法

public abstract int save(Argument paramarg) 
throws RemoteException; 

Answer 1

我還是有點問題的混淆。具體做法是：

• 測試實例arg = new Argument()在@Before方法這意味着arg是相關的每個測試。
• 提供的update()方法聲明如下所示：public boolean update(params)，它沒有定義params參數的類型。
• 問題也提供了save()方法此實現：int save(Argument paramarg) throws RemoteException;這意味着Argument arg傳遞到update()因此通過擴展params類型必須爲Argument，但測試用例調用rule.update(null, null, null, ...)

Anwyay，根據這些假設：

• 更新（）的方法是：

  public boolean update(Argument params) { 
      try { 
       Class1.getDefault().getClass2().save(params); 
      } catch (RemoteException e) { 
       return false; 
      } 
  
      return true; 
  } 
  

• save（）方法是;

  save(Argument arg) throws RemoteException 
  

下測試通過：

@RunWith(PowerMockRunner.class) 
@PrepareForTest({Class1.class}) 
public class ATestClass { 

    private Argument arg; 
    private Class1 mockObj1; 
    private Class2 mockObj2; 

    @Before 
    public void initialSetup() { 
     PowerMockito.mockStatic(Class1.class); 

     mockObj1 = Mockito.mock(Class1.class); 

     mockObj2 = Mockito.mock(Class2.class); 
    } 

    @Before 
    public void setupForEachTest() { 
     arg = new Argument(); 
    } 

    @Test 
    public void testUpdate() throws RemoteException { 
     PowerMockito.when(Class1.getDefault()).thenReturn(mockObj1); 
     Mockito.when(mockObj1.getClass2()).thenReturn(mockObj2); 

     Mockito.when(mockObj2.save(Mockito.any(Argument.class))).thenThrow(new RemoteException()); 

     Assert.assertFalse(update(arg)); 
    } 
} 

注意：您只需要使用PowerMock藉此調用的護理：Class1.getDefault()，所有其他的嘲笑調用既不是靜態的也不是最後這樣的Mockito就足夠了。