XCode 5 unit testing: starts my app

Question

When I run my tests in XCode 5, the main window of my OS X app appears on the screen for a couple of seconds while running the tests. Why? Even if I uncomment all my tests i

Answer 1

With XCTest, application files DO NOT need to be included within XCTest targets. The XCTest bundle is linked against the application which makes those files available during runtime.

To make this work, ensure the compiler option "Symbols hidden by default" is set to NO Within the Application target.

Here is a blog post with screenshots for clarity: http://zmcartor.github.io/code/2014/02/24/slim-xctest-targets

The advantage of this approach is test target builds much much faster.