GTest application output not always read correctly

In the following example, the test output is not always properly parsed. As soon as the `qDebug()` is printed, nothing else is. (In the test results panel). If I run the application in the command line, I see this line printed in the beginning, When running by running all tests, it comes somewhere in the middle.

 main.cpp

Output difference (The "Hello there" line comes somewhere else, and as soon as it is there, the rest of the output is not printed anymore):