Java 使用Mockito和PowerMock模拟私有方法

我正试图像这样用PowerMock模拟私有方法

BalanceResponseGenerator balanceResponseGenerator = spy(new BalanceResponseGenerator());
when(balanceResponseGenerator, "getBalance",client.getParent(), request.getTerminal().getRetailPoint().getRetailNetwork(), result).thenReturn(new Balance());

---

但真正的方法是调用的，为什么会这样？怎么了？我看到了几个例子，它们都不适合我。请解释

我想问题是在Mockito上调用when调用。when（..）而不是。PowerMockito.when（…）

适当的例子见

---

你把@PrepareForTest（BalancerResponseGenerator.class）放在你的TestClass之上了吗？是的，我当然放了/

@RunWith(PowerMockRunner.class)
// We prepare PartialMockClass for test because it's final or we need to mock private or static methods
@PrepareForTest(PartialMockClass.class)
public class YourTestCase {
    @Test
    public void privatePartialMockingWithPowerMock() {        
        PartialMockClass classUnderTest = PowerMockito.spy(new PartialMockClass());

        // use PowerMockito to set up your expectation
        PowerMockito.doReturn(value).when(classUnderTest, "methodToMock", "parameter1");

        // execute your test
        classUnderTest.execute();

        // Use PowerMockito.verify() to verify result
        PowerMockito.verifyPrivate(classUnderTest, times(2)).invoke("methodToMock", "parameter1");
    }
}