diff --git a/src/test/java/device/usbPlayer/UsbPlayerTest.java b/src/test/java/device/usbPlayer/UsbPlayerTest.java
index 9671e73..12f199d 100644
--- a/src/test/java/device/usbPlayer/UsbPlayerTest.java
+++ b/src/test/java/device/usbPlayer/UsbPlayerTest.java
@@ -21,19 +21,7 @@ class UsbPlayerTest {
     UsbPlayer up = new UsbPlayer();
 
 
-    @Test
-    void louder_test() {
-        up.setLautstaerke(40);
-        up.louder();
-        assertThat(up.getLautstaerke()).isEqualTo(41);
-    }
 
-    @Test
-    void quieter_test() {
-        up.setLautstaerke(40);
-        up.quieter();
-        assertThat(up.getLautstaerke()).isEqualTo(39);
-    }
 /*
     @Test
     void getVolume() {
@@ -92,7 +80,8 @@ class UsbPlayerTest {
                 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.")
+                Arguments.of("not connected : ", up7, "not connected."));
+    }
 
 
 @ParameterizedTest
@@ -103,15 +92,15 @@ void louderTest(String testName, UsbPlayer inputPlay, int expectedResult) {
 }
 
     static Stream<Arguments> louderOptions() {
-        UsbPlayer up1 = new UsbPlayer();
-        up1.louder();
-        UsbPlayer up2 = new UsbPlayer();
-        up2.setLautstaerke(100);
-        up2.louder();
+        UsbPlayer up11 = new UsbPlayer();
+        up11.louder();
+        UsbPlayer up22 = new UsbPlayer();
+        up22.setLautstaerke(100);
+        up22.louder();
         return Stream.of(
-                Arguments.of("Volume is : 1 ", up1, 1),
-                Arguments.of("Volume is : 100 ", up2, 100)
+                Arguments.of("Volume is : 1 ", up11, 1),
+                Arguments.of("Volume is : 100 ", up22, 100)
         );
     }
- */
+
 }
\ No newline at end of file