test RadioPlayer prev

src/test/java/device/RadioPlayerTest.java

@@ -48,6 +48,7 @@ class RadioPlayerTest {
         assertThat(rp.playTrack).isEqualTo(rp.Playlist.get((currentIndex)%rp.Playlist.size()));
     }
 /*
+    pr test2.0
     @Test
     void prev() {
     }