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Editorial Team
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Asked: 2026-06-15T04:37:16+00:00

I would like to create a library for iOS applications which uses UIKit. Furthermore

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I would like to create a library for iOS applications which uses UIKit. Furthermore I would like to create unit tests for this library. Unfortunately my tests do not work because of UIKit ([UIFont systemFontOfSize:12.0] to be precise).

According to Apple’s Unit Testing Guide there are two types of test cases: logic tests and application tests. Application tests seem to be the correct type for tests involving UIKit related stuff but I did not find out about how to set up application tests for libraries. Has anybody ever had the same problem and was able to solve it?

Thanks a lot!

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1 Answer

  1. Editorial Team

    I found a solution to this. You must add a new target to your project that is simply an empty application. Then use that application as your test host following the instructions for doing this with a regular application like here:

    Why does instantiating a UIFont in an iphone unit test cause a crash?

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