diff --git a/src/main/java/device/usbPlayer/USB_Stick.java b/src/main/java/device/usbPlayer/USB_Stick.java
index cb15e82..39817e9 100644
--- a/src/main/java/device/usbPlayer/USB_Stick.java
+++ b/src/main/java/device/usbPlayer/USB_Stick.java
@@ -39,14 +39,19 @@ public class USB_Stick {
 
    USB_Stick(String a){
 
+    }
+
+    USB_Stick(ArrayList<String> a1) {
+
+        Folders.add(a1);
+        currentAlbum = 0;
+
     }
     public ArrayList<String> getAlbum() throws NoFolderFound{
         if(Folders.size()==0) {
-            System.out.println("list ist leer");
             throw new NoFolderFound("The USB Drive is empty");
         }
         else {
-            System.out.println("nicht leer");
             return Folders.get(currentAlbum);
         }
     }
diff --git a/src/main/java/device/usbPlayer/UsbPlayer.java b/src/main/java/device/usbPlayer/UsbPlayer.java
index cb2523f..acf923b 100644
--- a/src/main/java/device/usbPlayer/UsbPlayer.java
+++ b/src/main/java/device/usbPlayer/UsbPlayer.java
@@ -2,6 +2,7 @@ package device.usbPlayer;
 
 import device.Device;
 
+import java.lang.reflect.Method;
 import java.util.ArrayList;
 
 public class UsbPlayer implements Device {
@@ -12,6 +13,8 @@ public class UsbPlayer implements Device {
     private Boolean isConnected;
     private Boolean isDefect;
     int Lautstaerke = 0;
+    int soundWas = -1;
+
     public USB_Stick USBDrive = new USB_Stick();
 
     public ArrayList<String> getPlaylist() {
@@ -60,8 +63,10 @@ public class UsbPlayer implements Device {
         return Lautstaerke;
     }
 
+    public UsbPlayer() {}
+
     //*********constructure********
-    public UsbPlayer() {
+    public UsbPlayer(USB_Stick stick) {
         super();
         isDefect = false;
         isConnected = true;
@@ -70,11 +75,13 @@ public class UsbPlayer implements Device {
         Playlist.add("Musik 03.mp3");
         playTrack = Playlist.get(0);*/
         try {
-            Playlist = USBDrive.getAlbum();
+            Playlist = stick.getAlbum();
         } catch (NoFolderFound e) {
             e.printStackTrace();
         }
-        playTrack = Playlist.get(0);
+        if (isAllAudio()) {
+            playTrack = Playlist.get(0);
+        }
 
     }
 
@@ -100,39 +107,49 @@ public class UsbPlayer implements Device {
     //**********search method*************
     @Override
     public void quieter() {
-        if (Lautstaerke > 0) {
-            Lautstaerke -= 1;
-        } else {
-            Lautstaerke = 0;
+        if (this.soundWas == -1) {
+            if (Lautstaerke > 0) {
+                Lautstaerke -= 1;
+            } else {
+                Lautstaerke = 0;
+            }
         }
+
     }
 
     @Override
     public void louder() {
-        if (Lautstaerke < 100) {
-            Lautstaerke += 1;
-        } else {
-            Lautstaerke = 100;
+        if (this.soundWas == -1) {
+            if (Lautstaerke < 100) {
+                Lautstaerke += 1;
+            } else {
+                Lautstaerke = 100;
+            }
         }
     }
 
     public void Louder_10() {
-        Lautstaerke += 10;
-        if (Lautstaerke > 100) {
-            Lautstaerke = 100;
+        if (this.soundWas == -1) {
+            Lautstaerke += 10;
+            if (Lautstaerke > 100) {
+                Lautstaerke = 100;
+            }
         }
+
     }
 
     public void quieter_10() {
-        Lautstaerke -= 10;
-        if (Lautstaerke < 0) {
-            Lautstaerke = 0;
+        if (this.soundWas == -1) {
+            Lautstaerke -= 10;
+            if (Lautstaerke < 0) {
+                Lautstaerke = 0;
+            }
         }
     }
 
     @Override
     public int getVolume() {
-        return 0;
+        return Lautstaerke;
     }
 
     @Override
@@ -154,32 +171,60 @@ public class UsbPlayer implements Device {
 
     @Override
     public String getInfoText() {
-        return null;
+        String InfoText = "";
+        if (isAllAudio()) {
+            InfoText = "USB Player is on : " + this.getPlayTrack();
+        } else
+            InfoText = "USB Player with no Albums";
+        return InfoText;
     }
 
     @Override
     public String[] getOptions() {
-        return new String[0];
+
+        Method[] methods=this.getClass().getDeclaredMethods();
+        String[] methodsList =new String[methods.length];
+        for (int i = 0; i <methods.length ; i++) {
+            methodsList[i]=methods[i].getName();
+        }
+        return  methodsList;
     }
 
     @Override
     public String chooseItem(int itemNr) {
-        return null;
+        String Message="";
+        if (itemNr < this.getPlaylist().size() && itemNr >= 0) {
+            Message= this.getPlaylist().get(itemNr ).toString();
+        }else if(itemNr < 0){
+            Message="The Nr is smaller than 0";
+        }else Message="The Nr is bigger than 0";
+        return Message;
     }
 
+
+
     @Override
     public String[] getItemList() {
-        return null;
+        String array[] = new String[getPlaylist().size()];
+        for(int j =0;j<getPlaylist().size();j++){
+            array[j] = getPlaylist().get(j);
+        }
+        return array;
     }
 
     @Override
     public String mute() {
-        return null;
+        this.soundWas = getLautstaerke();
+        setLautstaerke(0);
+        return "muted";
     }
 
     @Override
     public String unmute() {
-        return null;
+
+        setLautstaerke(soundWas);
+        this.soundWas = -1;
+        return "unmuted";
     }
 
 
@@ -246,4 +291,6 @@ public class UsbPlayer implements Device {
         //go to the last Song
         setPlayTrack(this.getPlaylist().get(this.getPlaylist().size() - 1));
     }
+
+
 }
diff --git a/src/test/java/device/usbPlayer/USB_StickTest.java b/src/test/java/device/usbPlayer/USB_StickTest.java
index 8d21050..5982ced 100644
--- a/src/test/java/device/usbPlayer/USB_StickTest.java
+++ b/src/test/java/device/usbPlayer/USB_StickTest.java
@@ -47,7 +47,6 @@ class USB_StickTest {
         );
     }
 
-    //ChangeAlbum
     @ParameterizedTest
     @MethodSource("ChangeAlbumOptions")
     void ChangeAlbumTest(String testName, USB_Stick s) throws NoFolderFound {
@@ -68,4 +67,6 @@ class USB_StickTest {
         );
     }
 
+
+
 }
\ No newline at end of file
diff --git a/src/test/java/device/usbPlayer/UsbPlayerTest.java b/src/test/java/device/usbPlayer/UsbPlayerTest.java
index 6aea624..aec782d 100644
--- a/src/test/java/device/usbPlayer/UsbPlayerTest.java
+++ b/src/test/java/device/usbPlayer/UsbPlayerTest.java
@@ -9,9 +9,10 @@ import java.util.ArrayList;
 
 import static org.assertj.core.api.Assertions.assertThat;
 
+
 class UsbPlayerTest {
 
-    UsbPlayer up = new UsbPlayer();
+    //UsbPlayer up = new UsbPlayer();
 
     @ParameterizedTest
     @MethodSource("PlayOptions")
@@ -21,21 +22,22 @@ class UsbPlayerTest {
     }
 
     static Stream<Arguments> PlayOptions() {
-        UsbPlayer up1 = new UsbPlayer();
-        UsbPlayer up8 = new UsbPlayer();
+        USB_Stick USBDrive = new USB_Stick();
+        UsbPlayer up1 = new UsbPlayer(USBDrive);
+        UsbPlayer up8 = new UsbPlayer(USBDrive);
         up8.setPlayTrack("");
-        UsbPlayer up2 = new UsbPlayer();
+        UsbPlayer up2 = new UsbPlayer(USBDrive);
         ArrayList<String> l = new ArrayList<String>();
         l.add("a.mp3");
         l.add("b.mp3");
         l.add("c.gif");
         up2.setPlaylist(l);
-        UsbPlayer up3 = new UsbPlayer();
+        UsbPlayer up3 = new UsbPlayer(USBDrive);
         ArrayList<String> Pl = new ArrayList<String>();
         up3.setPlaylist(Pl);
-        UsbPlayer up6 = new UsbPlayer();
+        UsbPlayer up6 = new UsbPlayer(USBDrive);
         up6.setDefect(true);
-        UsbPlayer up7 = new UsbPlayer();
+        UsbPlayer up7 = new UsbPlayer(USBDrive);
         up7.setConnected(false);
 
 
@@ -57,14 +59,31 @@ class UsbPlayerTest {
     }
 
     static Stream<Arguments> louderOptions() {
-        UsbPlayer up11 = new UsbPlayer();
+        USB_Stick USBDrive = new USB_Stick();
+        //first case
+        UsbPlayer up11 = new UsbPlayer(USBDrive);
         up11.louder();
-        UsbPlayer up22 = new UsbPlayer();
+        //second case
+        UsbPlayer up22 = new UsbPlayer(USBDrive);
         up22.setLautstaerke(100);
         up22.louder();
+        //third case
+        UsbPlayer up3 = new UsbPlayer(USBDrive);
+        up3.setLautstaerke(10);
+        up3.mute();
+        up3.louder();
+        //forth case
+        UsbPlayer up4 = new UsbPlayer(USBDrive);
+        up4.setLautstaerke(10);
+        up4.mute();
+        up4.unmute();
+        up4.louder();
+
         return Stream.of(
                 Arguments.of("Volume is : 1 ", up11, 1),
-                Arguments.of("Volume is : 100 ", up22, 100)
+                Arguments.of("Volume is : 100 ", up22, 100),
+                Arguments.of("Volume is muted,no change can be made ", up3, 0),
+                Arguments.of("Volume is unmuted,a change has been made ", up4, 11)
         );
     }
 
@@ -76,14 +95,33 @@ class UsbPlayerTest {
     }
 
     static Stream<Arguments> quieterOptions() {
-        UsbPlayer up1 = new UsbPlayer();
+        USB_Stick USBDrive = new USB_Stick();
+        //first case
+        UsbPlayer up1 = new UsbPlayer(USBDrive);
         up1.quieter();
-        UsbPlayer up2 = new UsbPlayer();
+        //second case
+        UsbPlayer up2 = new UsbPlayer(USBDrive);
         up2.setLautstaerke(10);
         up2.quieter();
+
+        //third case
+        UsbPlayer up3 = new UsbPlayer(USBDrive);
+        up3.setLautstaerke(10);
+        up3.mute();
+        up3.quieter();
+
+        //forth case
+        UsbPlayer up4 = new UsbPlayer(USBDrive);
+        up4.setLautstaerke(10);
+        up4.mute();
+        up4.unmute();
+        up4.quieter();
+
         return Stream.of(
                 Arguments.of("Volume must stay 0 ", up1, 0),
-                Arguments.of("Volume must be 9 ", up2, 9)
+                Arguments.of("Volume must be 9 ", up2, 9),
+                Arguments.of("Volume is muted,no change can be made ", up3, 0),
+                Arguments.of("Volume is unmuted,a change has been made ", up4, 9)
         );
     }
 
@@ -96,13 +134,14 @@ class UsbPlayerTest {
     }
 
     static Stream<Arguments> NextOptions() {
-        UsbPlayer up1 = new UsbPlayer();
+        USB_Stick USBDrive = new USB_Stick();
+        UsbPlayer up1 = new UsbPlayer(USBDrive);
         up1.next();
-        UsbPlayer up2 = new UsbPlayer();
+        UsbPlayer up2 = new UsbPlayer(USBDrive);
         for (int i = 1; i < up2.getPlaylist().size(); i++) {
             up2.next();
         }
-        UsbPlayer up3 = new UsbPlayer();
+        UsbPlayer up3 = new UsbPlayer(USBDrive);
         for (int i = 1; i < up3.getPlaylist().size(); i++) {
             up3.next();
         }
@@ -123,9 +162,10 @@ class UsbPlayerTest {
     }
 
     static Stream<Arguments> PrevOptions() {
-        UsbPlayer up1 = new UsbPlayer();
+        USB_Stick USBDrive = new USB_Stick();
+        UsbPlayer up1 = new UsbPlayer(USBDrive);
         up1.prev();
-        UsbPlayer up2 = new UsbPlayer();
+        UsbPlayer up2 = new UsbPlayer(USBDrive);
         for (int i = 1; i < up2.getPlaylist().size(); i++) {//3
             up2.prev();
         }
@@ -145,22 +185,37 @@ class UsbPlayerTest {
     }
 
     static Stream<Arguments> louder_10_Options() {
-        UsbPlayer up1 = new UsbPlayer();
+        USB_Stick USBDrive = new USB_Stick();
+        //first case
+        UsbPlayer up1 = new UsbPlayer(USBDrive);
         up1.Louder_10();
-
-        UsbPlayer up2 = new UsbPlayer();
-        for (int i = 0; i <= 3; i++) {
+        //Second case
+        UsbPlayer up2 = new UsbPlayer(USBDrive);
+        for (int i = 0; i < 3; i++) {
             up2.Louder_10();
         }
-        up2.quieter_10();
-
-        UsbPlayer up3 = new UsbPlayer();
+        //third case
+        UsbPlayer up3 = new UsbPlayer(USBDrive);
         up3.setLautstaerke(100);
         up3.Louder_10();
+        //forth case
+        UsbPlayer up4 = new UsbPlayer(USBDrive);
+        up4.setLautstaerke(10);
+        up4.mute();
+        up4.Louder_10();
+        //fifth case
+        UsbPlayer up5 = new UsbPlayer(USBDrive);
+        up5.setLautstaerke(10);
+        up5.mute();
+        up5.unmute();
+        up5.Louder_10();
+
         return Stream.of(
                 Arguments.of("Volume was 0, should be 10 ", up1, 10),
                 Arguments.of("Volume was 0, should be 30 ", up2, 30),
-                Arguments.of("Volume was 100, should stay 100 ", up3, 100)
+                Arguments.of("Volume was 100, should stay 100 ", up3, 100),
+                Arguments.of("Volume is muted,no change can be made ", up4, 0),
+                Arguments.of("Volume is unmuted,a change has been made ", up5, 20)
         );
     }
 
@@ -172,23 +227,38 @@ class UsbPlayerTest {
     }
 
     static Stream<Arguments> quieter_10_Options() {
-        UsbPlayer up1 = new UsbPlayer();
+        USB_Stick USBDrive = new USB_Stick();
+        //first case
+        UsbPlayer up1 = new UsbPlayer(USBDrive);
         up1.setLautstaerke(10);
         up1.quieter_10();
-
-        UsbPlayer up2 = new UsbPlayer();
+        //second case
+        UsbPlayer up2 = new UsbPlayer(USBDrive);
         up2.setLautstaerke(50);
         for (int i = 0; i < 3; i++) {
             up2.quieter_10();
         }
-
-        UsbPlayer up3 = new UsbPlayer();
+        //third case
+        UsbPlayer up3 = new UsbPlayer(USBDrive);
         up3.quieter_10();
+        //forth case
+        UsbPlayer up4 = new UsbPlayer(USBDrive);
+        up4.setLautstaerke(11);
+        up4.mute();
+        up4.quieter_10();
+        //fifth case
+        UsbPlayer up5 = new UsbPlayer(USBDrive);
+        up5.setLautstaerke(11);
+        up5.mute();
+        up5.unmute();
+        up5.quieter_10();
 
         return Stream.of(
                 Arguments.of("Volume was 10, should be 0 ", up1, 0),
                 Arguments.of("Volume was 50, should be 20 ", up2, 20),
-                Arguments.of("Volume was 0, should stay 0 ", up3, 0)
+                Arguments.of("Volume was 0, should stay 0 ", up3, 0),
+                Arguments.of("Volume is muted,no change can be made ", up4, 0),
+                Arguments.of("Volume is unmuted,a change has been made ", up5, 1)
         );
     }
 
@@ -205,7 +275,8 @@ class UsbPlayerTest {
     }
 
     static Stream<Arguments> FindSongOptions() {
-        UsbPlayer up1 = new UsbPlayer();
+        USB_Stick USBDrive = new USB_Stick();
+        UsbPlayer up1 = new UsbPlayer(USBDrive);
         return Stream.of(
                 Arguments.of("The song is not in the Album", up1.findSong("song 4"), -1),
                 Arguments.of("The song is in the Album", up1.findSong("Musik 02"), 1),
@@ -222,16 +293,17 @@ class UsbPlayerTest {
     }
 
     static Stream<Arguments> GoToOptions() {
-        UsbPlayer up1 = new UsbPlayer();
+        USB_Stick USBDrive = new USB_Stick();
+        UsbPlayer up1 = new UsbPlayer(USBDrive);
         up1.GoTo("Musik 03.mp3");
 
-        UsbPlayer up2 = new UsbPlayer();
+        UsbPlayer up2 = new UsbPlayer(USBDrive);
         up2.GoTo("Musik 04.mp3");
 
-        UsbPlayer up3 = new UsbPlayer();
+        UsbPlayer up3 = new UsbPlayer(USBDrive);
         up3.GoTo("Musik 02");
 
-        UsbPlayer up4 = new UsbPlayer();
+        UsbPlayer up4 = new UsbPlayer(USBDrive);
         up4.next();
         up4.GoTo("Musik");
 
@@ -252,45 +324,46 @@ class UsbPlayerTest {
     }
 
     static Stream<Arguments> isAllAudioOptions() {
+        USB_Stick USBDrive = new USB_Stick();
         //mp3
-        UsbPlayer up1 = new UsbPlayer();
+        UsbPlayer up1 = new UsbPlayer(USBDrive);
         //mp4
-        UsbPlayer up2 = new UsbPlayer();
+        UsbPlayer up2 = new UsbPlayer(USBDrive);
         ArrayList<String> Pl = new ArrayList<String>();
         Pl.add("Musik 01.mp4");
         Pl.add("Musik 02.mp4");
         Pl.add("Musik 03.mp4");
         up2.setPlaylist(Pl);
         //m4a
-        UsbPlayer up3 = new UsbPlayer();
+        UsbPlayer up3 = new UsbPlayer(USBDrive);
         ArrayList<String> Pl1 = new ArrayList<String>();
         Pl1.add("Musik 01.m4a");
         Pl1.add("Musik 02.m4a");
         Pl1.add("Musik 03.m4a");
         up3.setPlaylist(Pl1);
         //wav
-        UsbPlayer up4 = new UsbPlayer();
+        UsbPlayer up4 = new UsbPlayer(USBDrive);
         ArrayList<String> Pl2 = new ArrayList<String>();
         Pl2.add("Musik 01.wav");
         Pl2.add("Musik 02.wav");
         Pl2.add("Musik 03.wav");
         up4.setPlaylist(Pl2);
         //wma
-        UsbPlayer up5 = new UsbPlayer();
+        UsbPlayer up5 = new UsbPlayer(USBDrive);
         ArrayList<String> Pl3 = new ArrayList<String>();
         Pl3.add("Musik 01.wma");
         Pl3.add("Musik 02.wma");
         Pl3.add("Musik 03.wma");
         up5.setPlaylist(Pl3);
         //aac
-        UsbPlayer up6 = new UsbPlayer();
+        UsbPlayer up6 = new UsbPlayer(USBDrive);
         ArrayList<String> Pl4 = new ArrayList<String>();
         Pl4.add("Musik 01.aac");
         Pl4.add("Musik 02.aac");
         Pl4.add("Musik 03.aac");
         up6.setPlaylist(Pl4);
         //mixed Audio and text Files in the Album
-        UsbPlayer up7 = new UsbPlayer();
+        UsbPlayer up7 = new UsbPlayer(USBDrive);
         ArrayList<String> Pl5 = new ArrayList<String>();
         Pl5.add("Musik 01.aac");
         Pl5.add("Musik 02.txt");
@@ -314,25 +387,26 @@ class UsbPlayerTest {
     @MethodSource("GoToFirstOptions")
     void GoToFirstTest(String testName, UsbPlayer inputUSB, String expectedResult) {
         String firstSong = inputUSB.getPlayTrack();
-        assertThat(firstSong ).describedAs(testName).isEqualTo(expectedResult);
+        assertThat(firstSong).describedAs(testName).isEqualTo(expectedResult);
     }
 
     static Stream<Arguments> GoToFirstOptions() {
-        UsbPlayer up1 = new UsbPlayer();
+        USB_Stick USBDrive = new USB_Stick();
+        UsbPlayer up1 = new UsbPlayer(USBDrive);
         up1.GoToFirst();
 
-        UsbPlayer up2 = new UsbPlayer();
+        UsbPlayer up2 = new UsbPlayer(USBDrive);
         up2.GoToFirst();
         up2.GoToFirst();
 
-        UsbPlayer up3 = new UsbPlayer();
+        UsbPlayer up3 = new UsbPlayer(USBDrive);
         up3.next();
         up3.GoToFirst();
 
         return Stream.of(
-                Arguments.of("It should go to the first Song ", up1,up1.getPlaylist().get(0)),
-                Arguments.of("Call the function twice and it stills go to the first Song ", up2,up2.getPlaylist().get(0)),
-                Arguments.of("go to the next Song then back to first Song ", up3,up3.getPlaylist().get(0))
+                Arguments.of("It should go to the first Song ", up1, up1.getPlaylist().get(0)),
+                Arguments.of("Call the function twice and it stills go to the first Song ", up2, up2.getPlaylist().get(0)),
+                Arguments.of("go to the next Song then back to first Song ", up3, up3.getPlaylist().get(0))
         );
     }
 
@@ -340,27 +414,28 @@ class UsbPlayerTest {
     @MethodSource("GoToLastOptions")
     void GoToLastTest(String testName, UsbPlayer inputUSB, String expectedResult) {
         String firstSong = inputUSB.getPlayTrack();
-        assertThat(firstSong ).describedAs(testName).isEqualTo(expectedResult);
+        assertThat(firstSong).describedAs(testName).isEqualTo(expectedResult);
     }
 
     static Stream<Arguments> GoToLastOptions() {
+        USB_Stick USBDrive = new USB_Stick();
         //first case
-        UsbPlayer up1 = new UsbPlayer();
+        UsbPlayer up1 = new UsbPlayer(USBDrive);
         up1.GoToLast();
 
-        UsbPlayer up2 = new UsbPlayer();
+        UsbPlayer up2 = new UsbPlayer(USBDrive);
         up2.GoToLast();
         up2.GoToLast();
 
-        UsbPlayer up3 = new UsbPlayer();
+        UsbPlayer up3 = new UsbPlayer(USBDrive);
         up3.next();
         up3.GoToLast();
 
 
         return Stream.of(
-                Arguments.of("It should go to the Last Song ", up1,up1.getPlaylist().get(up1.getPlaylist().size()-1)),
-                Arguments.of("It should go to the Last Song even after calling the function twice ", up2,up2.getPlaylist().get(up2.getPlaylist().size()-1)),
-                Arguments.of("It should go to the Last Song even changing the current song ", up3,up3.getPlaylist().get(up3.getPlaylist().size()-1))
+                Arguments.of("It should go to the Last Song ", up1, up1.getPlaylist().get(up1.getPlaylist().size() - 1)),
+                Arguments.of("It should go to the Last Song even after calling the function twice ", up2, up2.getPlaylist().get(up2.getPlaylist().size() - 1)),
+                Arguments.of("It should go to the Last Song even changing the current song ", up3, up3.getPlaylist().get(up3.getPlaylist().size() - 1))
         );
     }
 
@@ -368,26 +443,148 @@ class UsbPlayerTest {
     @MethodSource("setPlayTrackOptions")
     void setPlayTrackTest(String testName, UsbPlayer inputUSB, String expectedResult) {
         String firstSong = inputUSB.getPlayTrack();
-        assertThat(firstSong ).describedAs(testName).isEqualTo(expectedResult);
+        assertThat(firstSong).describedAs(testName).isEqualTo(expectedResult);
     }
 
     static Stream<Arguments> setPlayTrackOptions() {
+        USB_Stick USBDrive = new USB_Stick();
         //first case
-        UsbPlayer up1 = new UsbPlayer();
+        UsbPlayer up1 = new UsbPlayer(USBDrive);
         up1.setPlayTrack("Musik 02.mp3");
 
         //Second Case
-        UsbPlayer up2 = new UsbPlayer();
+        UsbPlayer up2 = new UsbPlayer(USBDrive);
         up2.setPlayTrack("Musik 02.mp3");
 
         //Third Case
-        UsbPlayer up3 = new UsbPlayer();
+        UsbPlayer up3 = new UsbPlayer(USBDrive);
         up3.setPlayTrack("Musik 04.mp3");
 
         return Stream.of(
-                Arguments.of("It should change the current Song ", up1,"Musik 02.mp3"),
-                Arguments.of("It should change the current Song if it is in the Albume", up2,"Musik 02.mp3"),
-                Arguments.of("Tried to change the Song,but the Song name does not exist in the Album(No change)", up3,"Musik 01.mp3")
+                Arguments.of("It should change the current Song ", up1, "Musik 02.mp3"),
+                Arguments.of("It should change the current Song if it is in the Albume", up2, "Musik 02.mp3"),
+                Arguments.of("Tried to change the Song,but the Song name does not exist in the Album(No change)", up3, "Musik 01.mp3")
+        );
+    }////
+
+    @ParameterizedTest
+    @MethodSource("getInfoTextOptions")
+    void getInfoTextTest(String testName, UsbPlayer inputUSB, String expectedResult) {
+        String infotxt = inputUSB.getInfoText();
+        assertThat(infotxt).describedAs(testName).isEqualTo(expectedResult);
+    }
+
+    static Stream<Arguments> getInfoTextOptions() {
+        USB_Stick USBDrive = new USB_Stick();
+        ArrayList<String> Fileslist = new ArrayList<String>();
+        Fileslist.add("file 01.txt");
+        Fileslist.add("file 02.txt");
+        Fileslist.add("file 03.txt");
+        USB_Stick USBwithTXT = new USB_Stick(Fileslist);
+        //USB_Stick emptyUSB = new USB_Stick("");
+        //first case
+        UsbPlayer up1 = new UsbPlayer(USBDrive);
+
+        //Second case
+        UsbPlayer up2 = new UsbPlayer(USBwithTXT);
+
+        return Stream.of(
+                Arguments.of("USB Player with Albums ", up1, "USB Player is on : " + up1.getPlayTrack()),
+                Arguments.of("USB Player with no Albums ", up2, "USB Player with no Albums")
+        );
+    }//"muted"
+
+    @ParameterizedTest
+    @MethodSource("muteOptions")
+    void muteTest(String testName, UsbPlayer inputUSB, String expectedResult, String testName2, String testName3) {
+        int prevSound = inputUSB.getLautstaerke();
+        String isMuted = inputUSB.mute();
+        assertThat(isMuted).describedAs(testName).isEqualTo(expectedResult);
+        //Second case
+        assertThat(inputUSB.getLautstaerke()).describedAs(testName2).isEqualTo(0);
+        //third case
+        assertThat(inputUSB.soundWas).describedAs(testName3).isEqualTo(prevSound);
+
+    }
+
+    static Stream<Arguments> muteOptions() {
+        USB_Stick USBDrive = new USB_Stick();
+
+        UsbPlayer up1 = new UsbPlayer(USBDrive);
+        up1.mute();
+
+        return Stream.of(
+                Arguments.of("The Sound is muted ", up1, "muted", "Sound level is 0", "previous sound level is saved ")
+
+        );
+    }
+
+    @ParameterizedTest
+    @MethodSource("unmuteOptions")
+    void unmuteTest(String testName, UsbPlayer inputUSB, String expectedResult, String testName2, String testName3) {
+        int prevSound = inputUSB.getLautstaerke();
+        String unMuted = inputUSB.unmute();
+        int currentStatusofSoundWas = inputUSB.soundWas;
+        //first case
+        assertThat(unMuted).describedAs(testName).isEqualTo(expectedResult);
+        //Second case
+        assertThat(inputUSB.getLautstaerke()).describedAs(testName2).isEqualTo(prevSound);
+        //third case
+        assertThat(inputUSB.soundWas).describedAs(testName3).isEqualTo(currentStatusofSoundWas);
+
+    }
+
+    static Stream<Arguments> unmuteOptions() {
+        USB_Stick USBDrive = new USB_Stick();
+        UsbPlayer up1 = new UsbPlayer(USBDrive);
+        up1.unmute();
+
+        return Stream.of(
+                Arguments.of("The Sound is unmuted ", up1, "unmuted", "Sound level has changed", "previous sound level is 0")
+
+        );
+    }
+
+    @ParameterizedTest
+    @MethodSource("chooseItem")
+    void chooseItemTest(String testName, String inputSong, String expectedResult) {
+        assertThat(inputSong).describedAs(testName).isEqualTo(expectedResult);
+    }
+
+    static Stream<Arguments> chooseItem() {
+        USB_Stick USBDrive = new USB_Stick();
+        UsbPlayer up1 = new UsbPlayer(USBDrive);
+
+        return Stream.of(
+                Arguments.of("An Item from the Album was chosen ", up1.chooseItem(0), "Musik 01.mp3"),
+                Arguments.of("Incorrect Nr of Item was given < 0", up1.chooseItem(-1), "The Nr is smaller than 0"),
+                Arguments.of("Incorrect Nr of Item was given > 0", up1.chooseItem(5), "The Nr is bigger than 0")
+        );
+    }//getItemList
+
+    @ParameterizedTest
+    @MethodSource("getItemList")
+    void getItemListTest(String testName, UsbPlayer inputPlayer, String[] expectedResult) {
+        String[] Pl = inputPlayer.getItemList();
+
+        if (Pl.length > 0)
+            assertThat(Pl).contains("Musik 01.mp3", "Musik 02.mp3", "Musik 03.mp3").describedAs(testName);
+        else assertThat(Pl).describedAs("No Album").isEmpty();
+    }
+
+    static Stream<Arguments> getItemList() {
+        USB_Stick USBDrive = new USB_Stick();
+        UsbPlayer up1 = new UsbPlayer(USBDrive);
+        String[] Pl = {"Musik 01.mp3", "Musik 02.mp3", "Musik 03.mp3"};
+
+        UsbPlayer up2 = new UsbPlayer(USBDrive);
+        ArrayList<String> Pl1 = new ArrayList<String>();
+        up2.setPlaylist(Pl1);
+        String[] l = new String[3];
+
+        return Stream.of(
+                Arguments.of("An  Album was returned ", up1, Pl, 1),
+                Arguments.of("There is no Album to be returned ", up2, l, 2)
         );
     }