test+productive code for case:2 of method prev in CDPlayer created.

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

@@ -200,9 +200,19 @@ class CDPlayerTest {
     @ParameterizedTest
     @MethodSource("prevTestData")
     void prevTest(String testName,String testDirection, CDPlayer _cdPlayer,int anzClicks, String expectedResult){
-        for (int i = 0; i <anzClicks; i++) {
+        if(testDirection.equals("StartingBySecondSong")) {
+            _cdPlayer.next();
+            for (int i = 0; i < anzClicks; i++) {
                 _cdPlayer.prev();
             }
+        }
+        if(testDirection.equals("StartingByThirdSong")) {
+            _cdPlayer.next();
+            _cdPlayer.next();
+            for (int i = 0; i < anzClicks; i++) {
+                _cdPlayer.prev();
+            }
+        }
         assertThat(_cdPlayer.getActualPlayTrack()).describedAs(testName).isEqualTo(expectedResult);
     }
     static Stream<Arguments> prevTestData () {
@@ -214,10 +224,11 @@ class CDPlayerTest {
         cdPlayer1.tapOnCdFlap();
         cdPlayer1.setCD(audioCD);
         cdPlayer1.tapOnCdFlap();
-        cdPlayer1.next();
+
 
         return Stream.of(
-                Arguments.of("[getActualPlayTrack() after 1x prev() starting by secondSong] => FirstSongSelected", "FirstSongSelected", cdPlayer1, 1, cdPlayer1.getSongByNumber(0))
+                Arguments.of("[getActualPlayTrack() after 1x prev() starting by secondSong] => FirstSongSelected", "StartingBySecondSong", cdPlayer1, 1, cdPlayer1.getSongByNumber(0)),
+                Arguments.of("[getActualPlayTrack() after 2x prev() starting by thirdSong] => FirstSongSelected", "StartingByThirdSong", cdPlayer1, 2, cdPlayer1.getSongByNumber(0))
         );
     }
 }