Sorting already exists at http://www.objc.io/issue-15/mocking-stubbing.html
It basically boils down to:
OCMock has much more functionality than OCMockito, which, depending on your personal preferences, can be an advantage or a disadvantage.
Both are installed through CocoaPods, so they are easy to integrate with your existing test setup.
I'm new to iOS testing, so I just leave it here to point someone in the right direction until someone else provides a more complex answer.
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