我在某人的在我的情况下，我使用了PowerMockito的部分模拟，如下所示.

In my case, I have used same partial mock of PowerMockito as below.

PowerMockito.stub(PowerMockito.method(OpenPgpUtility.class, "readPublicKey", InputStream.class)).toReturn(mockPGPPublicKey);

这让我可以模拟readPublicKey()，但实际上是对encrypt()

which letting me to mock readPublicKey() but an actual call to encrypt()