用robolelectric和powermock模拟静态方法

Question

我正在使用Roboelectric实现测试，并且我正在尝试实现一个必须检查静态方法是否已被调用的测试。我的测试是这样的:

@RunWith(RobolectricTestRunner.class)
@Config(manifest=Config.NONE)
@PrepareForTest({DeviceUtils.class})
@SmallTest
public class ContactsListPresenterTest extends BasePresenterTest {    
    ...
    @Test
    public void onCallContactClicked_nullArgument_methodNotCalled() {
        PowerMockito.mockStatic(DeviceUtils.class);
        presenter.onCallNotaryClicked(context, null);
        PowerMockito.verifyStatic(Mockito.never());
        DeviceUtils.dialPhoneNumber(context, Mockito.anyString());
    }
    @Test
    public void onCallContactClicked_nullArgument_methodCalled() {
        PowerMockito.mockStatic(DeviceUtils.class);
        presenter.onCallNotaryClicked(context, new Contact());
        PowerMockito.verifyStatic(Mockito.times(1));
        DeviceUtils.dialPhoneNumber(context, Mockito.anyString());
    }
}

但是测试失败，出现以下错误:

org.powermock.api.mockito.ClassNotPreparedException: 
The class x.DeviceUtils not prepared for test.
To prepare this class, add class to the '@PrepareForTest' annotation.
In case if you don't use this annotation, add the annotation on class or  method level. 

我做错了什么?我已经添加了@PrepareForTest注释，我想这都是因为我使用RobolectricTestRunner而不是PowerMockitoRunner，但我需要RoboelectricTestRunner在同一类中的其他测试。

Thanks to lot

Answer 1

您是否使用PowerMockRule ?正如robolelectric文档中提到的