qt5base-lts/mkspecs/features/testcase_targets.prf

# Let every project have a standard GNU `check' target
!contains(QMAKE_EXTRA_TARGETS, check) {
    contains(TEMPLATE, subdirs): \
        prepareRecursiveTarget(check)
    else: \
        check.depends = first # `make check' implies build
    QMAKE_EXTRA_TARGETS += check
}

# ... and the same for benchmarks, too.
!contains(QMAKE_EXTRA_TARGETS, benchmark) {
    contains(TEMPLATE, subdirs): \
        prepareRecursiveTarget(benchmark)
    else: \
        benchmark.depends = first # `make benchmark' implies build
    QMAKE_EXTRA_TARGETS += benchmark
}