PowerMock：如何取消模拟方法？

我有一个静态方法，使用 PowerMock 进行模拟以引发异常。 （它会删除文件。）不幸的是，在我@After(after-each-test) 方法，我需要在没有模拟的情况下调用此方法。我怎样才能模拟一个方法？

我没有看到相当于Mockito.reset()。 [参考：mockito：如何取消模拟方法？ https://stackoverflow.com/questions/8123091/mockito-how-to-unmock-a-method ]

Example:

@RunWith(PowerMockRunner.class)
@PrepareForTest(PathUtils.class)  // Important: This class has a static method we want to mock.
public class CleaningServiceImplTest2 extends TestBase {

    public static final File testDirPath = new File(CleaningServiceImplTest2.class.getSimpleName());

    @BeforeClass
    public static void beforeAllTests() throws PathException {
        recursiveDeleteDirectory(testDirPath);
    }

    @AfterClass
    public static void afterAllTests() throws PathException {
        recursiveDeleteDirectory(testDirPath);
    }

    private File randomParentDirPath;
    private CleaningServiceImpl classUnderTest;

    @Before
    public void beforeEachTest() {
        randomParentDirPath = new File(testDirPath, UUID.randomUUID().toString()).getAbsoluteFile();
        classUnderTest = new CleaningServiceImpl(randomParentDirPath);
    }

    @After
    public void afterEachTest() throws PathException {
        recursiveDeleteDirectory(randomParentDirPath);
    }

    public static void recursiveDeleteDirectory(File dirPath) throws PathException {
        // calls PathUtils.removeFile(...)
    }

    @Test
    public void run_FailWhenCannotRemoveFile() throws IOException {
        // We only want to mock one method.  Use spy() and not mockStatic().
        PowerMockito.spy(PathUtils.class);

        // These two statements are tightly bound.
        PowerMockito.doThrow(new PathException(PathException.PathExceptionReason.UNKNOWN, randomParentDirPath, null, "message"))
            .when(PathUtils.class);
        PathUtils.removeFile(Mockito.any(File.class));

        classUnderTest.run();
    }
}

这花了我一段时间才弄清楚，所以我正在回答我自己的问题。

AFAIK，您需要“撤消”每个模拟。Mockito.reset()不会与Class<?>参考。在测试方法的末尾添加：

// Undo the mock above because we need to call PathUtils.removeFile() within @After.
PowerMockito.doCallRealMethod().when(PathUtils.class);
PathUtils.removeFile(Mockito.any(File.class));