在iOS上运行单元测试时，如何排除代码路径？

Question

I have some code that throws an exception when run from a logic test in ocunit. I would like to ignore this code and test the rest of the functionality without having to setup an application test nor having to decompose the method.

For example:

-(void)testMethod {
    BOOL result = NO;
    UIFont * font = [UIFont systemFontOfSize:12]; //throws exception in ocunit
    ...
    return result;
}

How can I call this from a unit test with the UIFont creation excluded?

Answer 1

Wrap the UIFont call in an if block and use NSClassFromString to dynamically load a SenTestCase class.

example:

-(void)testMethod {
    BOOL result = NO;
    if(!NSClassFromString(@"SenTestCase")) {
        UIFont * font = [UIFont systemFontOfSize:12]; //throws exception in ocunit
    }
    ...
    return result;
}