diff --git a/sync/player.cpp b/sync/player.cpp
index 4a124f9..4d1e538 100644
--- a/sync/player.cpp
+++ b/sync/player.cpp
@@ -4,12 +4,8 @@
 #include <QFile>
 #include <QDir>
 
-Player::Player(const QString bufferFile)
-{
-   buffer = bufferFile;
-}
 
-Player::Player(const QString bufferFile, QObject *parent, Flags flags):
+Player::Player(const QString &bufferFile, QObject *parent, Flags flags):
     QMediaPlayer(parent, flags)
 {
    buffer = bufferFile;
diff --git a/sync/player.h b/sync/player.h
index 98841d9..9353930 100644
--- a/sync/player.h
+++ b/sync/player.h
@@ -9,8 +9,7 @@ class Player : public QMediaPlayer
 private:
     QString buffer;
 public:
-    Player(const QString bufferFile);
-    Player(const QString bufferFile, QObject *parent = Q_NULLPTR, Flags flags = Flags());
+    Player(const QString& bufferFile, QObject *parent = Q_NULLPTR, Flags flags = Flags());
     bool setMediaFromBytes(const QByteArray& array);
     ~Player();
 
diff --git a/sync/tests/tst_synctest.cpp b/sync/tests/tst_synctest.cpp
index 710a29c..2e75656 100644
--- a/sync/tests/tst_synctest.cpp
+++ b/sync/tests/tst_synctest.cpp
@@ -16,7 +16,8 @@ private slots:
 
     void sycn_tests();
 
-    void package_tests();
+    void player_tests();
+
 
 };
 
@@ -62,8 +63,36 @@ void SyncTest::sycn_tests()
 
 }
 
-void SyncTest::package_tests()
+void SyncTest::player_tests()
 {
+    QFile f(":/song/test_song");
+
+    QVERIFY(f.open(QIODevice::ReadOnly));
+
+    Player pl(BUFFER_NAME);
+
+    QByteArray array = f.readAll();
+    f.close();
+    QVERIFY(pl.setMediaFromBytes(array));
+
+    f.setFileName(BUFFER_NAME);
+
+    QVERIFY(f.open(QIODevice::ReadOnly));
+
+    QByteArray array2 = f.readAll();
+    f.close();
+
+    QVERIFY(array.length() == array2.length());
+
+    QVERIFY(pl.setMediaFromBytes(array));
+
+    QVERIFY(f.open(QIODevice::ReadOnly));
+
+    array2 = f.readAll();
+
+    QVERIFY(array.length() == array2.length());
+
+
 
 
 }