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我刚刚开始使用 PowerMock 和 EasyMock，我对计算模拟方法调用的方式有点困惑。

示例代码：

class ClassToBeTested{
 private boolean toBeMocked(Integer i){
  return i%2==1; 
  }
 }

和测试代码：

@RunWith(PowerMockRunner.class)
@PrepareForTest(ClassToBeTested.class)
public class ClassToBeTestedTest{

 private final Integer i=2;
 ClassToBeTested underTest;

 @Before
 public void setUp() throws Exception {
  underTest=PowerMock.createPartialMock(ClassToBeTested.class,
                    "toBeMocked");
  PowerMock.expectPrivate(underTest, "toBeMocked", i)
            .andReturn(true);
  PowerMock.replay(underTest);
 }
 @Test
 public dummyTest(){
  Assert.assertTrue(underTest.toBeMocked(i);
  //the call is: underTest.toBeMocked(2)
  //so the computation is return 2%2==1; google says it 0 :)
  //thus real method would return 0==1 (false)
  //mocked one will return true, assertion should pass, that's ok
  //RERUN ASSERTION
  Assert.assertTrue(underTest.toBeMocked(i);
  //method invocation count should be now 2
}

  @After
  public void tearDown() {
   PowerMock.verify(underTest);
   //WILL FAIL with exception saying
   //the mocked method has not been called at all
   //expected value (obvious) is one
}

我的问题是，为什么模拟方法调用期望会失败？为什么验证ClassUnderTest显示根本没有调用模拟方法？

4

1 回答 1

1

在将期望线更改为：

 PowerMock.expectPrivate(underTest, "toBeMocked", i).andReturn(true).times(2);

即使没有这种变化，也不是说那个被嘲笑的母亲没有被叫到。它说

  Unexpected method call toBeMocked(2):
    toBeMocked(2): expected: 1, actual: 2

您使用的是最新的 PowerMock 和 EasyMock 版本吗？

于 2012-04-04T08:22:37.123 回答