/usr/include/qt5/QtTest/5.2.1/ is in qtbase5-private-dev 5.2.1+dfsg-1ubuntu14.
This file is owned by root:root, with mode 0o755.
..
/usr/include/qt5/QtTest/5.2.1/QtTest/
/usr/include/qt5/QtTest/5.2.1/QtTest/private/
/usr/include/qt5/QtTest/5.2.1/QtTest/private/callgrind_p.h
/usr/include/qt5/QtTest/5.2.1/QtTest/private/cycle_p.h
/usr/include/qt5/QtTest/5.2.1/QtTest/private/linux_perf_event_p.h
/usr/include/qt5/QtTest/5.2.1/QtTest/private/qabstracttestlogger_p.h
/usr/include/qt5/QtTest/5.2.1/QtTest/private/qbenchmark_p.h
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/usr/include/qt5/QtTest/5.2.1/QtTest/private/qbenchmarkmeasurement_p.h
/usr/include/qt5/QtTest/5.2.1/QtTest/private/qbenchmarkmetric_p.h
/usr/include/qt5/QtTest/5.2.1/QtTest/private/qbenchmarkperfevents_p.h
/usr/include/qt5/QtTest/5.2.1/QtTest/private/qbenchmarkvalgrind_p.h
/usr/include/qt5/QtTest/5.2.1/QtTest/private/qplaintestlogger_p.h
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/usr/include/qt5/QtTest/5.2.1/QtTest/private/qtestcoreelement_p.h
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/usr/include/qt5/QtTest/5.2.1/QtTest/private/qtesttable_p.h
/usr/include/qt5/QtTest/5.2.1/QtTest/private/qtestxunitstreamer_p.h
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