Function report

tests/amp_applet_test.cpp:20–27

int g_failed = 0;

void report(const char* name, bool ok, const QString& detail = QString())
{
    std::printf("%s %-52s %s\n",
                ok ? "[ OK ]" : "[FAIL]",
                name,
                qPrintable(detail));
    if (!ok) ++g_failed;
}

QPushButton* tempButton(AmpApplet& applet)
{