Method getInfoText of CDPlayer tested on ExceptionShouldReturnAMessage.

src/test/java/device/cdPlayer/CDPlayerTest.java

@@ -277,16 +277,22 @@ class CDPlayerTest {
 
     @ParameterizedTest
     @MethodSource("getInfoTestData")
-    void getInfoTest(String testName, CDPlayer _cdPlayer,Exception exception , String expectedResult){
-        Exception newException=assertThrows(exception.getClass(),()->_cdPlayer.getInfoText());
+    void getInfoTest(String testName,String cases, CDPlayer _cdPlayer,Exception exception , String expectedResult){
+        Exception newException = assertThrows(exception.getClass(), () -> _cdPlayer.getInfoText());
+        if(cases.equals("Case1")) {
             assertEquals(ReturnValueNullException.class, newException.getClass());
         }
+        if(cases.equals("Case2")) {
+            assertThat(newException.getMessage()).describedAs(testName).isEqualTo(expectedResult);
+        }
+    }
     static Stream<Arguments> getInfoTestData () {
 
         CDPlayer cdPlayer1 = new CDPlayer();
 
         return Stream.of(
-                Arguments.of("[getInfoText() by infoText=null ] => shouldThrowReturnValueNullException", cdPlayer1,new ReturnValueNullException(),"")
+                Arguments.of("[getInfoText() by infoText=null ] => shouldThrowReturnValueNullException","Case1", cdPlayer1,new ReturnValueNullException(),""),
+                Arguments.of("[getInfoText() by infoText=null ] => ExceptionShouldReturnAMessage","Case2",cdPlayer1,new ReturnValueNullException(),"Method should not return a Null-Value.")
         );
     }