Merge commit '9ca1d2a492283b9860b6d2a40adeb4596db5d13c' into HEAD

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

@@ -2,8 +2,10 @@ package device.radioPlayer;
 
 import device.Device;
 
+import java.lang.reflect.Method;
 import java.time.LocalDateTime;
 import java.util.ArrayList;
+import java.util.Arrays;
 
 public class RadioPlayer implements Device {
 
@@ -155,13 +157,17 @@ public class RadioPlayer implements Device {
 
     private String buildInfoText() {
         String infoText = playedStation;
-        if(regionPlaylist.contains(playedStation)) return ("Regional playlist: " + (regionPlaylist.indexOf(playedStation) + 1) + infoText);
+        if (regionPlaylist.contains(playedStation))
+            return ("Regional playlist: " + (regionPlaylist.indexOf(playedStation) + 1) + infoText);
         else return ("Saved playlist: " + (savedPlaylist.indexOf(playedStation) + 1) + infoText);
     }
 
     @Override
     public String[] getOptions() {
-        return new String[0];
+        Method[] methods = this.getClass().getDeclaredMethods();
+        String[] returnMethods = Arrays.stream(methods).map(Method::getName).toArray(String[]::new);
+
+        return returnMethods;
     }
 
     @Override

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

@@ -1,12 +1,17 @@
 package device.radioPlayer;
 
 
+import device.Device;
 import org.assertj.core.util.Strings;
 import org.junit.jupiter.api.Test;
 import org.junit.jupiter.params.ParameterizedTest;
 import org.junit.jupiter.params.provider.Arguments;
 import org.junit.jupiter.params.provider.MethodSource;
 
+import java.lang.reflect.Method;
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.List;
 import java.util.stream.Stream;
 
 import static org.assertj.core.api.Assertions.assertThat;
@@ -366,8 +371,9 @@ class RadioPlayerTest {
                 Arguments.of("Test for mute RadioPlayer if volume is saved before muting", "saved", rp1, 30)
         );
     }
+
     @Test
-    void TestUnmute() {
+    void testUnmute() {
         RadioPlayer rp = new RadioPlayer();
         rp.setLautstaerke(40);
         rp.mute();
@@ -383,8 +389,10 @@ class RadioPlayerTest {
         else if (testTyp.contains("station")) bool = testRp.getInfoText().contains(testRp.playedStation);
         else if (testTyp.contains("region")) bool = testRp.getInfoText().contains("Regional playlist");
         else if (testTyp.contains("saved")) bool = testRp.getInfoText().contains("Saved playlist");
-        else if(testTyp.contains("savedNum")) bool = testRp.getInfoText().contains(("0") + testRp.savedPlaylist.indexOf(testRp.playedStation) + 1);
-        else if(testTyp.contains("regionNum")) bool = testRp.getInfoText().contains(("0") + testRp.regionPlaylist.indexOf(testRp.playedStation) + 1);
+        else if (testTyp.contains("savedNum"))
+            bool = testRp.getInfoText().contains(("0") + testRp.savedPlaylist.indexOf(testRp.playedStation) + 1);
+        else if (testTyp.contains("regionNum"))
+            bool = testRp.getInfoText().contains(("0") + testRp.regionPlaylist.indexOf(testRp.playedStation) + 1);
         else if (testTyp.contains("stationInfo")) bool = testRp.getInfoText().contains("Now playing");
         else bool = testRp.getInfoText().contains("Now playing");
 
@@ -418,4 +426,29 @@ class RadioPlayerTest {
                 Arguments.of("Test for getInfoText not contains station info if station not has one", "noStationInfo", rp7, false)
         );
     }
+
+    @ParameterizedTest
+    @MethodSource("getOptionsOptions")
+    void testGetOptions(String testName, String testTyp, RadioPlayer testRp) {
+        if (testTyp.equals("notNull")) assertThat(testRp.getOptions()).describedAs(testName).isNotEqualTo(null);
+        if (testTyp.equals("arrayLengthGreater0"))
+            assertThat(testRp.getOptions().length).describedAs(testName).isNotEqualTo(0);
+        else {
+            Method[] interfaceMethods = Device.class.getDeclaredMethods();
+            List<String> deviceMethods = new ArrayList<>(Arrays.asList(testRp.getOptions()));
+            for (Method interfaceMethod : interfaceMethods) {
+                assertThat(deviceMethods.contains(interfaceMethod.getName())).describedAs(testName).isEqualTo(true);
+            }
+        }
+    }
+
+    static Stream<Arguments> getOptionsOptions() {
+        RadioPlayer rp = new RadioPlayer();
+
+        return Stream.of(
+                Arguments.of("returnValue of getOptions is not null", "notNull", rp),
+                Arguments.of("should not return an empty array", "arrayLengthGreater0", rp),
+                Arguments.of("Test if all methods declared in interface device are available", "device", rp)
+        );
+    }
 }