diff --git a/src/test/java/device/usbPlayer/UsbPlayerTest.java b/src/test/java/device/usbPlayer/UsbPlayerTest.java
index f5c1962..bd85948 100644
--- a/src/test/java/device/usbPlayer/UsbPlayerTest.java
+++ b/src/test/java/device/usbPlayer/UsbPlayerTest.java
@@ -1,13 +1,11 @@
 package device.usbPlayer;
 
-import org.junit.jupiter.api.Test;
 import org.junit.jupiter.params.ParameterizedTest;
 import org.junit.jupiter.params.provider.Arguments;
 import org.junit.jupiter.params.provider.MethodSource;
-
 import java.util.stream.Stream;
+import java.util.ArrayList;
 
-import static org.junit.jupiter.api.Assertions.*;
 import static org.assertj.core.api.Assertions.assertThat;
 
 class UsbPlayerTest {
@@ -15,49 +13,41 @@ class UsbPlayerTest {
     UsbPlayer up = new UsbPlayer();
 
     @ParameterizedTest
-    @MethodSource("quieterOptions")
-    void quieterTest(String testName, UsbPlayer inputPlay, int expectedResult) {
-        int volumeNum = inputPlay.getLautstaerke();
-        assertThat(volumeNum).describedAs(testName).isEqualTo(expectedResult);
+    @MethodSource("PlayOptions")
+    void playTest(String testName, UsbPlayer inputPlay, String expectedResult) {
+        String playState = inputPlay.play();
+        assertThat(playState).describedAs(testName).isEqualTo(expectedResult);
     }
 
-    static Stream<Arguments> quieterOptions() {
+    static Stream<Arguments> PlayOptions() {
         UsbPlayer up1 = new UsbPlayer();
-        up1.quieter();
+        UsbPlayer up8 = new UsbPlayer();
+        up8.setPlayTrack("");
         UsbPlayer up2 = new UsbPlayer();
-        up2.setLautstaerke(10);
-        up2.quieter();
-        return Stream.of(
-                Arguments.of("Volume must stay 0 ", up1, 0),
-                Arguments.of("Volume must be 9 ", up2, 9)
-        );
-    }
-
-/*
-    @Test
-    void getVolume() {
-    }
+        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();
+        ArrayList<String> Pl = new ArrayList<String>();
+        up3.setPlaylist(Pl);
+        UsbPlayer up6 = new UsbPlayer();
+        up6.setDefect(true);
+        UsbPlayer up7 = new UsbPlayer();
+        up7.setConnected(false);
 
-    @Test
-    void next() {
-    }
 
-    @Test
-    void prev() {
+        return Stream.of(
+                Arguments.of("All right : ", up1, "USB : connected,working,have a list,Audio,point to a track."),
+                Arguments.of("No first Track : ", up8, "USB : connected,working,have a list,Audio,doesn't point to a track."),
+                Arguments.of("No Audio Files : ", up2, "USB : connected,working,have a list,not Audio."),
+                Arguments.of("No list of tracks : ", up3, "USB : connected,working,have no list."),
+                Arguments.of("connected , not working : ", up6, "USB : connected,not working."),
+                Arguments.of("not connected : ", up7, "not connected."));
     }
 
-    @Test
-    void getInfoText() {
-    }
 
-    @Test
-    void getOptions() {
-    }
-
-    @Test
-    void chooseOption() {
-    }
-*/
 @ParameterizedTest
 @MethodSource("louderOptions")
 void louderTest(String testName, UsbPlayer inputPlay, int expectedResult) {
@@ -66,14 +56,33 @@ void louderTest(String testName, UsbPlayer inputPlay, int expectedResult) {
 }
 
     static Stream<Arguments> louderOptions() {
+        UsbPlayer up11 = new UsbPlayer();
+        up11.louder();
+        UsbPlayer up22 = new UsbPlayer();
+        up22.setLautstaerke(100);
+        up22.louder();
+        return Stream.of(
+                Arguments.of("Volume is : 1 ", up11, 1),
+                Arguments.of("Volume is : 100 ", up22, 100)
+        );
+    }
+
+    @ParameterizedTest
+    @MethodSource("quieterOptions")
+    void quieterTest(String testName, UsbPlayer inputPlay, int expectedResult) {
+        int volumeNum = inputPlay.getLautstaerke();
+        assertThat(volumeNum).describedAs(testName).isEqualTo(expectedResult);
+    }
+
+    static Stream<Arguments> quieterOptions() {
         UsbPlayer up1 = new UsbPlayer();
-        up1.louder();
+        up1.quieter();
         UsbPlayer up2 = new UsbPlayer();
-        up2.setLautstaerke(100);
-        up2.louder();
+        up2.setLautstaerke(10);
+        up2.quieter();
         return Stream.of(
-                Arguments.of("Volume is : 1 ", up1, 1),
-                Arguments.of("Volume is : 100 ", up2, 100)
+                Arguments.of("Volume must stay 0 ", up1, 0),
+                Arguments.of("Volume must be 9 ", up2, 9)
         );
     }