qt-everywhere-src-5.15.1/qtbase/mkspecs/features/ctest_testcase_installed.prf

prefix_build {
    CMAKE_TEST_LOCATION = $$_PRO_FILE_PWD_/../cmake

    CMAKE_PREFIX_PATH = $$[QT_INSTALL_PREFIX]

    CONFIG += insignificant_test

    include(ctest_testcase_common.prf)
}