UsbPlayerTest.louder_10_Test() third Case

src/main/java/device/usbPlayer/UsbPlayer.java

@@ -106,6 +106,9 @@ public class UsbPlayer implements Device {
 
     public void Louder_10(){
         Lautstaerke += 10;
+        if (Lautstaerke > 100) {
+            Lautstaerke = 100;
+        }
     }
 
     @Override

src/test/java/device/usbPlayer/UsbPlayerTest.java

@@ -150,10 +150,14 @@ void louderTest(String testName, UsbPlayer inputPlay, int expectedResult) {
         for (int i = 0; i < 3; i++) {//3
             up2.Louder_10();
         }
+        UsbPlayer up3 = new UsbPlayer();
+        up3.setLautstaerke(100);
+        up3.Louder_10();
 
         return Stream.of(
                 Arguments.of("Volume was 0, should 10 ", up1, 10),
-                Arguments.of("Volume was increased 3 times :30 ", up2, 30)
+                Arguments.of("Volume was increased 3 times :30 ", up2, 30),
+                Arguments.of("Volume is 100 and doesn't change ", up3, 100)
         );
     }