QTest skip test with incorrect (slot) name

void auth_window_test_t::password_input_should_hide_echo_data(){
    qWarning() << "never called";
}
void auth_window_test_t::password_input_should_hide_echo_data__(){
    qInfo() << "called";
}
void auth_window_test_t::print_slots(){
     ...
    foreach(QString signature, slotSignatures){
        qInfo() << "Slot" << signature;
    }
}

Slot "password_input_should_hide_echo_data()"
Slot "password_input_should_hide_echo_data__()"

********* Start testing of auth_window_test_t *********
Config: Using QtTest library 5.12.7, Qt 5.12.7 (x86_64-little_endian-lp64 shared (dynamic) release build; by Clang 10.0.0 (clang-1000.11.45.5) (Apple))
PASS   : auth_window_test_t::initTestCase()
QINFO  : auth_window_test_t::password_input_should_hide_echo_data__() called
PASS   : auth_window_test_t::password_input_should_hide_echo_data__()
PASS   : auth_window_test_t::cleanupTestCase()
Totals: 3 passed, 0 failed, 0 skipped, 0 blacklisted, 1ms
********* Finished testing of auth_window_test_t *********