public void testCoolGenerationOfTokens() {
    TargetGenerator generator = new TargetGenerator();
    Combination<Colors> combi = generator.generate();
    
    Set<Colors> combiDifferentColors = new HashSet<Colors>();
    for (int i = 0; i < 5; i++){
      combiDifferentColors.add(combi.get(i).getColor()); 
    }
    assertEquals(Combination.SIZE, combiDifferentColors.size());
  }