405     QVERIFY(playlist.errorString().isEmpty());

   405     QVERIFY(playlist.errorString().isEmpty());

   406 

   406 

   407     QBuffer buffer;

   407     QBuffer buffer;

   408     buffer.open(QBuffer::ReadWrite);

   408     buffer.open(QBuffer::ReadWrite);

   409 

   409 

   411     bool res = playlist.save(&buffer, "unsupported_format");

   410     bool res = playlist.save(&buffer, "unsupported_format");

   412     QVERIFY(!res);

   411     QVERIFY(!res);

   413     QVERIFY(playlist.error() != QMediaPlaylist::NoError);

   412     QVERIFY(playlist.error() != QMediaPlaylist::NoError);

   414     QVERIFY(!playlist.errorString().isEmpty());

   413     QVERIFY(!playlist.errorString().isEmpty());

   415 

   414