Question

I need to disable the logging when running unit testing automatically so that the test speed can be significantly improved(~20s vs 0.374s, only a few tests right now, but a big loop in the testing code).

I tried to define a macro in the testing code header, like this:

#define UNIT_TESTING

And in the code to be tested, I first check if such macro is defined:

#ifndef UNIT_TESTING
NSLog("whatever log");
#endif

But it seems not working, I’m guessing if it’s because I didn’t import the testing code header in the code to be tested. I can’t do this because then the log won’t be printed even when not unit testing.

I’m relatively new to objective c and came from Java background, I guess there is something wrong with header/macro definition.

One more question is, do I ever need to define a macro for unit testing, isn’t there anything already like that?

Answer 1

You need to define UNIT_TESTING in the build settings of your unit tests target.

Select your project in the left pane, then the unit tests target, then Build Settings –> All –> Preprocessor Macros.