// This magic data is fake; just a way to test various features.
    static const char s_magicData[] = "MIME-Magic\0\n"
                                      "[50:application/x-desktop]\n"
                                      ">0=\0\017[Desktop Entry]+11\n"
                                      ">2=\0\002[A&\xff\001\n" // '[' and then any non-even value
                                      "1>4=\0\001]\n"
                                      "[40:application/vnd.ms-tnef]\n"
                                      ">0=\0\004\x78\x9f\x3e\x22\n" // tnef magic, in "ready to use" form
                                      // https://bugs.freedesktop.org/show_bug.cgi?id=435
                                      // <match value="0x1234" type="host16" offset="0"/>
                                      "[30:text/x-test-mime-host16]\n"
                                      ">0=\0\002\x12\x34~2\n"
                                      // <match value="0x1278" type="big16" offset="0"/>
                                      "[30:text/x-test-mime-big16]\n"
                                      ">0=\0\002\x12\x78\n"
                                      // <match value="0x5678" type="little16" offset="0"/>
                                      "[30:text/x-test-mime-little16]\n"
                                      ">0=\0\002\x78\x55\n"
                                      // <match value="0x12345678" type="host32" offset="0"/>
                                      "[30:text/x-test-mime-host32]\n"
                                      ">0=\0\004\x12\x34\x56\x78~4\n"
                                      "[50:application/vnd.ms-powerpoint]\n"
                                      // fixed ppt magic, see https://bugs.freedesktop.org/show_bug.cgi?id=435
                                      ">0=\0\004\xd0\xcf\x11\xe0\n";

    QTest::addColumn<QString>("testData");
    QTest::addColumn<QString>("expected");

    QTest::newRow("First rule, no offset") << "[Desktop Entry]" << "application/x-desktop";
    QTest::newRow("First rule, with offset") << "# Comment\n[Desktop Entry]" << "application/x-desktop";
    QTest::newRow("Missing char") << "# Comment\n[Desktop Entry" << QString();
    QTest::newRow("Second rule, two-level match") << "AB[C]" << "application/x-desktop";
    QTest::newRow("Second rule, failure at first level (mask)") << "AB[B]" << QString();
    QTest::newRow("Second rule, failure at second level") << "AB[CN" << QString();
    QTest::newRow("Tnef magic, should pass") << "\x78\x9f\x3e\x22" << "application/vnd.ms-tnef";
    QTest::newRow("Tnef magic, should fail") << "\x22\x3e\x9f\x78" << QString();
    QTest::newRow("Powerpoint rule, for endianness check, should pass") << "\xd0\xcf\x11\xe0" << "application/vnd.ms-powerpoint";
    QTest::newRow("Powerpoint rule, no swapping, should fail") << "\x11\xe0\xd0\xcf" << QString();
#if Q_BYTE_ORDER == Q_LITTLE_ENDIAN
    QTest::newRow("Test mime, host16, wrong endianness") << "\x12\x34" << QString();
    QTest::newRow("Test mime, host16, little endian, ok") << "\x34\x12" << "text/x-test-mime-host16";
    QTest::newRow("Test mime, host32, wrong endianness") << "\x12\x34\x56\x78" << QString();
    QTest::newRow("Test mime, host32, little endian, ok") << "\x78\x56\x34\x12" << "text/x-test-mime-host32";
#else
    QTest::newRow("Test mime, host16, big endian, ok") << "\x12\x34" << "text/x-test-mime-host16";
    QTest::newRow("Test mime, host16, wrong endianness") << "\x34\x12" << QString();
    QTest::newRow("Test mime, host32, big endian, ok") << "\x12\x34\x56\x78" << "text/x-test-mime-host32";
    QTest::newRow("Test mime, host32, wrong endianness") << "\x78\x56\x34\x12" << QString();
#endif
    QTest::newRow("Test mime, little16, little endian, ok") << "\x78\x55" << "text/x-test-mime-little16";
    QTest::newRow("Test mime, little16, wrong endianness") << "\x55\x78" << QString();
    QTest::newRow("Test mime, big16, little endian, ok") << "\x12\x78" << "text/x-test-mime-big16";
    QTest::newRow("Test mime, big16, wrong endianness") << "\x78\x12" << QString();