Zozo's work

src/main/java/com/hangman/players/YourPlayer.java

@@ -4,10 +4,42 @@
 import java.util.Arrays;
 import java.util.LinkedList;
 import java.util.List;
+import java.util.Random;
 
 public class YourPlayer implements Player {
+
+  private Character getRandomCharacter(){
+    Random r = new Random();
+    char c = (char)(r.nextInt(26) + 'a');
+    return c;
+  }
+
+  private Character getRandomCharacterUsingClue(List<Character> currentClue){
+    Character randomChar = getRandomCharacter();
+    if (currentClue.contains(randomChar)){
+      System.out.println("'"+randomChar + "' is already guessed -> guess a new one");
+      getRandomCharacterUsingClue(currentClue);
+    }
+    return randomChar;
+  }
+
+  private boolean isAllCharactersAsked(List<Character> currentClue){
+    for (int i = 0; i < 26; i++){
+      char c = (char) (i+ 'a');
+      if (!currentClue.contains(c)){
+        return false;
+      }
+    }
+    return true;
+  }
+
+
   @Override
   public char GetGuess(List<Character> currentClue) {
-    return 'a';
+    if (isAllCharactersAsked(currentClue)){
+      return 'a';
+    };
+
+    return getRandomCharacterUsingClue(currentClue);
   }
 }

src/test/java/com/hangman/players/YourPlayerTest.java

@@ -1,17 +1,27 @@
 package com.hangman.players;
 
 import org.junit.Test;
+
+import java.util.ArrayList;
 import java.util.Arrays;
+import java.util.List;
+
 import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertTrue;
 
 public class YourPlayerTest {
     @Test
     public void GuessesAWhenThereAreNoSuccessfulCharactersGuessedYet() {
         YourPlayer player = new YourPlayer();
+        List<Character> allChars = new ArrayList<>();
 
         char guess = player.GetGuess(Arrays.asList('_', '_', '_'));
+        for (int i = 0; i < 26; i++){
+            char c = (char) (i+ 'a');
+            allChars.add(c);
+        }
 
-        assertEquals('a', guess);
+        assertTrue(allChars.contains(guess));
     }
 
     @Test