public void testPokerPlayerCheckThreeOAK() {
    PokerPlayer testPlayer = new PokerPlayer();

    // testing checkThreeOAK()
    testPlayer.setPlayer("Player1 TwoHearts TwoDiamonds TwoClubs FourSpades SixHearts");
    testPlayer.sortHand();
    assertEquals(2, testPlayer.checkThreeOAK(-1));
    // non-3OAK
    testPlayer.setPlayer("Player1 FiveHearts ThreeHearts NineHearts TwoHearts FourClubs");
    testPlayer.sortHand();
    assertEquals(-1, testPlayer.checkThreeOAK(-1));
  }