diff --git a/src/test/java/device/usbPlayer/UsbPlayerTest.java b/src/test/java/device/usbPlayer/UsbPlayerTest.java
index 7041eb1..f15d636 100644
--- a/src/test/java/device/usbPlayer/UsbPlayerTest.java
+++ b/src/test/java/device/usbPlayer/UsbPlayerTest.java
@@ -458,13 +458,16 @@ class UsbPlayerTest {
 
     @ParameterizedTest
     @MethodSource("unmuteOptions")
-    void unmuteTest(String testName, UsbPlayer inputUSB, String expectedResult,String testName2) {
+    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);
 
     }
 
@@ -474,7 +477,7 @@ class UsbPlayerTest {
         up1.unmute();
 
         return Stream.of(
-                Arguments.of("The Sound is unmuted ", up1,"unmuted","Sound level has changed")
+                Arguments.of("The Sound is unmuted ", up1,"unmuted","Sound level has changed","previous sound level is 0")
 
         );
     }