Merge commit '0a02c7b9cdea159b75a781abdac4db4ab846240b' into HEAD

src/main/java/device/radioPlayer/RadioPlayer.java

@@ -202,4 +202,12 @@ public class RadioPlayer implements Device {
         } else return " Last Station: 01 " + station + " can´t by deleted";
     }
 
+    public String changeToSavedPlaylist() {
+        if(regionPlaylist.contains(playedStation)) {
+            playedStation = savedPlaylist.get(0);
+            regionPlaylist.clear();
+            return "Playlist switched now playing station: 0" + (savedPlaylist.indexOf(playedStation) + 1) + " " + this.playedStation + " from saved playlist";
+        }
+        return "You are already in saved Playlist!";
+    }
 }

src/test/java/device/radioPlayer/RadioPlayerTest.java

@@ -244,4 +244,25 @@ class RadioPlayerTest {
                 Arguments.of("Test for not delete station in saved playlist if this is the last station", rp1, "noDelete", true)
         );
     }
+
+    @ParameterizedTest
+    @MethodSource("changeToSavedPlaylistOptions")
+    void testChangeToSavedPlaylist(String testName, RadioPlayer testRp, String expectedResult) {
+        String savedStation = testRp.playedStation;
+        assertThat(savedStation).describedAs(testName).isEqualTo(expectedResult);
+    }
+
+    static Stream<Arguments> changeToSavedPlaylistOptions() {
+        RadioPlayer rp = new RadioPlayer();
+        rp.changeToSavedPlaylist();
+        RadioPlayer rp1 = new RadioPlayer();
+        rp1.changeRegion("BY");
+        rp1.changeToSavedPlaylist();
+
+        return Stream.of(
+                Arguments.of("Test for change to saved playlist when you already in saved playlist", rp, "YouFM"),
+                Arguments.of("Test for change to saved playlist when in regional playlist", rp1, "YouFM")
+
+        );
+    }
 }