How to mock a static variable

MockStaticVariable

With my case how I mock the static variable and I hope this can help you, here is my workaround:

For example, I have a static `count` value in production code:

```
@implementation MyClass

static int _count = 0;
    
- (int)viewDidAppearCount {
  return _count;
}
    
- (void)setViewDidAppearCount:(int)count {
  _count = count;
}

@end
```

In my test class, I public the set method

```
@interface MyClass (Testing)

- (void)setViewDidAppearCount:(int)count

@end
```

Then now I'm able to mock the static variable:

```
- (void)testMyMethod {
  //Given:
  [self.sut setViewDidAppearCount:aValue];
  
  //When:
  //...
  
  //Then:
  //...
}
```