mocking - PowerMock 静态类不模拟

Question

public class TestStatic {
    public static int methodstatic(){
        return 3;
    }
}


@Test
@PrepareForTest({TestStatic.class})
public class TestStaticTest extends PowerMockTestCase {

    public void testMethodstatic() throws Exception {
        PowerMockito.mock(TestStatic.class);
        Mockito.when(TestStatic.methodstatic()).thenReturn(5);
        PowerMockito.verifyStatic();
        assertThat("dff",TestStatic.methodstatic()==5);
    }

    @ObjectFactory
    public IObjectFactory getObjectFactory() {
        return new org.powermock.modules.testng.PowerMockObjectFactory();
    }
}

异常(exception):

org.mockito.exceptions.misusing.MissingMethodInvocationException: 
when() requires an argument which has to be 'a method call on a mock'.
For example:
    when(mock.getArticles()).thenReturn(articles);

Also, this error might show up because:
1. you stub either of: final/private/equals()/hashCode() methods.
Those methods *cannot* be stubbed/verified.
2. inside when() you don't call method on mock but on some other object.

我通过 Intellij 运行它，遗留代码有很多方法......

有人有想法，我通过了官方教程，并不意味着让这个简单的测试工作

Answer 1

我在我的案例中找到了解决此类问题的方法，想与您分享:

如果我在测试类中调用了模拟方法:

@RunWith(PowerMockRunner.class)
@PrepareForTest(Calendar.class)
public class TestClass {
  @Test
  public void testGetDefaultDeploymentTime()
    PowerMockito.mockStatic(Calendar.class);
    Calendar calendar = new GregorianCalendar();
    calendar.set(Calendar.HOUR_OF_DAY, 8);
    calendar.set(Calendar.MINUTE, 0);
    when(Calendar.getInstance()).thenReturn(calendar);
    Calendar.getInstance();
  }
}

它工作得很好。但是当我重写测试时，它在另一个类中调用 Calendar.getInstance() 它使用了真正的 Calendar 方法。

@Test
public void testGetDefaultDeploymentTime() throws Exception {
  mockUserBehaviour();
  new AnotherClass().anotherClassMethodCall();    // Calendar.getInstance is called here
}

所以，作为一个解决方案，我将 AnotherClass.class 添加到 @PrepareForTest 并且它现在可以工作了。

@PrepareForTest({Calendar.class, AnotherClass.class})

PowerMock 似乎需要知道在哪里调用模拟的静态方法。