Merge commit '6c5989e12f15df61ecedbb5357c3e8c7688c9b23' into HEAD

src/main/java/device/Device.java

@@ -7,13 +7,14 @@ public interface Device {
 	int getVolume();
 	void next();
 	void prev();
+	//get deviceName, Album and current Item
 	String getInfoText();
-	//returns an array with Method-Names  to bee listed
+	//get a list of public methods
 	String[] getOptions();
-	//returns an array with contents to bee played
+	//get an Item of the Album
+	String chooseItem(int itemNr);
+	// get the actual album
 	String[] getItemList();
-
 	String play();
 
-
 	}

src/main/java/device/cdPlayer/CDPlayer.java

@@ -2,6 +2,8 @@ package device.cdPlayer;
 
 import device.Device;
 import device.cdPlayer.exceptions.*;
+
+import java.lang.reflect.Method;
 import java.util.ArrayList;
 import java.util.Arrays;
 import java.util.List;
@@ -69,7 +71,18 @@ public class CDPlayer implements Device {
 
     @Override
     public String[] getOptions() {
-        return new String[0];
+        Method[] methods=this.getClass().getDeclaredMethods();
+        String[] outMethods=new String[methods.length];
+
+        for (int i = 0; i <methods.length ; i++) {
+            outMethods[i]=methods[i].getName();
+        }
+        return outMethods;
+    }
+
+    @Override
+    public String chooseItem(int itemNr) {
+        return null;
     }
 
     @Override
@@ -77,7 +90,6 @@ public class CDPlayer implements Device {
         return loadedCD.getPlayList();
     }
 
-
     @Override
     public String play() {
         if(isCdFlapOpen()){

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

@@ -156,9 +156,14 @@ public class RadioPlayer implements Device {
         return new String[0];
     }
 
+    @Override
+    public String chooseItem(int itemNr) {
+        return null;
+    }
+
     @Override
     public String[] getItemList() {
-        return new String[0];
+        return null;
     }
 
 

src/main/java/device/usbPlayer/UsbPlayer.java

@@ -150,9 +150,14 @@ public class UsbPlayer implements Device {
         return new String[0];
     }
 
+    @Override
+    public String chooseItem(int itemNr) {
+        return null;
+    }
+
     @Override
     public String[] getItemList() {
-        return new String[0];
+        return null;
     }
 
 

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

@@ -228,4 +228,25 @@ class CDPlayerTest {
                 Arguments.of("[getActualPlayTrack() after 1x prev() starting by firstSong] => FirstSongSelected", "StartingByFirstSong", cdPlayer1, 1, cdPlayer1.getSongByNumber(0))
         );
     }
+
+    @ParameterizedTest
+    @MethodSource("getOptionsTestData")
+    void getOptionsTest(String testName,String testDirection, CDPlayer _cdPlayer, String expectedResult){
+        if(testDirection.equals("ReturnValueNotNull")) {
+            assertThat(_cdPlayer.getOptions()).describedAs(testName).isNotEqualTo(null);
+        }
+        if(testDirection.equals("ArrayLengthGreaterThen0")) {
+            assertThat(_cdPlayer.getOptions().length).describedAs(testName).isNotEqualTo(0);
+        }
+    }
+    static Stream<Arguments> getOptionsTestData () {
+        CDPlayer cdPlayer1 = new CDPlayer();
+        return Stream.of(
+                Arguments.of("[getOptions(): shouldNotReturnNull] => ReturnValueNotNull", "ReturnValueNotNull", cdPlayer1,null),
+                Arguments.of("[getOptions(): shouldReturnAnArrayWithLengthGreaterThen0] => ArrayLengthGreaterThen0", "ArrayLengthGreaterThen0", cdPlayer1,null)
+        );
+    }
+
+
+
 }