You can select in your IDE which program should be run. The IDE will not run more than one executable.
You can run all tests on the command line with 'make test' or 'cmake --test' (iirc)

@SGaist @mchinand Thank you so much. Unit testing is a new concept for me and I am trying to learn how to do it and best practices.

@vdevadass Please take a look here to see how to use INCLUDEPATH and LIBS libraries in pro file: http://doc.qt.io/qtcreator/creator-project-qmake-libraries.html