How do you bypass static method calls?

Question

I have this line which is interferring in a unit test:

OtherClass.staticMethodThatWillErrorIfCalled().isAvailable();

If it wasn't static I could just mock OtherClass and then do this:

Mockito.doReturn(null).when(mockedOtherClass).staticMethodThatWillErrorIfCalled();
Mockito.doReturn(true).when(mockedOtherClass).isGuiMode();

and the fact that it will error if called makes my attempts at using powermockito futile.

I'm not sure how I can do this. All I want to do is skip over this line (it's an if check) and continue on as if it had returned true. What is the best way to do this?

Please post more information, the whole unit test will be a good start. Is static method in class being tested? — Alex Buyny, May 15 '15 at 01:16
@AlexBuyny i'm just executing a method in ClassToBeTested, but that method has the if check that I talk about which will call that static method that throws an error. I don't care about testing the static method or anything else in OtherClass I just want to get a true value returned so that I can execute and test a method in ClassToBeTested — Aequitas, May 15 '15 at 01:21
@DaveNewton yes but because it is static it will call the method and so the error will be thrown. I want to skip over the method. — Aequitas, May 15 '15 at 01:24
Have a look [here](http://codereview.stackexchange.com/questions/10359/unit-testing-legacy-code-with-static-classes) There are some approaches how to deal with statics in this article — Alex Buyny, May 15 '15 at 01:26
I cannot make changes to either class, only to the unit test class — Aequitas, May 15 '15 at 01:32
Maybe [this](http://stackoverflow.com/questions/21105403/mocking-static-methods-with-mockito) may help? — Alex Buyny, May 15 '15 at 02:02
I've gone through that already, it also calls the static method. — Aequitas, May 15 '15 at 02:12
... You can mock static methods. I don't see what the issue is. — Dave Newton, May 15 '15 at 10:49
the issue is that the static method is being called, say I have a sysout in the method, it will still display that message, which I don't want, I want to completely skip over it so the sysout is not displayed — Aequitas, May 15 '15 at 22:45

score 1 · Answer 1 · answered May 15 '15 at 16:04

I would require more info to give a more specific answer but this is what I am thinking...

First tell PowerMockito that you will be mocking a static method in OtherClass.

@RunWith(PowerMockRunner.class)
@PrepareForTest(OtherClass.class)

These are class level annotations that go on your unit testing class.

Then mock what to do when that method is called.

PowerMockito.mockStatic(OtherClass.class);
Mockito.when(OtherClass.isAvailable()).thenReturn(Boolean.TRUE);

Do this in your @Before method on your unit testing.

How do you bypass static method calls?

1 Answers1