How do you mock out private properties with OCMock for iOS?

Question

I have a private property that is declared in the .m file of my class to be tested, let's call it ClassUnderTest. ClassUnderTest instantiates an instance of ClassToBeMocked. How do I use OCMock to mock out an instance of the ClassToBeMocked and assign it to the ClassUnderTest?

Accepted Answer

Re-declare the property in your test class. You can do the same for private methods. In ClassUnderTestTest.m:

```
@interface ClassUnderTest ()

@property(retain)ClassToBeMocked *instanceToBeMocked;

-(void)somePrivateMethod;

@end
```

How do you mock out private properties with OCMock for iOS?

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