Java PowerMockito正在调用实方法而不是模拟的私有方法

我有一个类，它有一个私有方法，并在其主体中调用另一个私有方法。所以我想调用第一个私有方法并模拟第二个。以下是一个例子：

public class ClassWithPrivateMethod {

    private int count;

    public ClassWithPrivateMethod() {
    }

    private void countDown() {
        while (isDecrementable())
            count--;
    }

    private boolean isDecrementable() {

        throw new IllegalArgumentException();
//        if (count > 0) return true;
//        return false;
    }
}

和测试等级：

@RunWith(PowerMockRunner.class)
@PrepareForTest(ClassWithPrivateMethodTest.class)
public class ClassWithPrivateMethodTest {

    private int count;
    private ClassWithPrivateMethod classWithPrivateMethod;

    @Before
    public void setUp() throws Exception {
        count = 3;
        classWithPrivateMethod = PowerMockito.spy(new ClassWithPrivateMethod());
    }

    @Test
    public void countDown() throws Exception {

        Whitebox.setInternalState(classWithPrivateMethod, "count", count);
        PowerMockito.doReturn(true, true, false).when(classWithPrivateMethod, "isDecrementable");

        Whitebox.invokeMethod(classWithPrivateMethod, "countDown");

        int count = Whitebox.getInternalState(classWithPrivateMethod, "count");

        assertEquals(1, count);

        PowerMockito.verifyPrivate(classWithPrivateMethod, times(3)).invoke("isDecrementable");
    }
}

我通过Whitebox.invokeMethod（classWithPrivateMethod，“倒计时”）调用了第一个私有方法和第二个类似的模拟，

PowerMockito.doReturn（true，true，false）.when（classWithPrivateMethod，“isDecrementable”）。如您所见，
isDecrementable
方法在调用时应返回
true
，
true
，
false
值，但PowerMockito正在调用real方法。

我正在使用这些依赖项：

<dependency>
    <groupId>junit</groupId>
    <artifactId>junit</artifactId>
    <version>4.12</version>
</dependency>
<dependency>
    <groupId>org.powermock</groupId>
    <artifactId>powermock-api-mockito</artifactId>
    <version>1.6.5</version>
</dependency>
<dependency>
    <groupId>org.powermock</groupId>
    <artifactId>powermock-module-junit4</artifactId>
    <version>1.6.5</version>
    <scope>test</scope>
</dependency>
<dependency>
    <groupId>org.mockito</groupId>
    <artifactId>mockito-core</artifactId>
    <version>1.10.19</version>
</dependency>


朱尼特
朱尼特
4.12
org.powermock
powermock api mockito
1.6.5
org.powermock
powermock-module-junit4
1.6.5
测试
org.mockito
莫基托磁芯
1.10.19

我的测试有什么问题？我发现这行有错误：

@PrepareForTest(ClassWithPrivateMethodTest.class)

应该是：

@PrepareForTest(ClassWithPrivateMethod.class)