ZCW-Lab-Blackjack/test/rocks/zipcode/BlackJackRuleTest.java

package rocks.zipcode;

import org.junit.Assert;
import org.junit.Test;

public class BlackJackRuleTest {

    @Test
    public void testIsBusted_whenPlayerHas21(){
        // Given - set up data
        Player player = new Player();
        player.addCard(new Cards(Cards.Rank.ACE, Cards.Suit.CLUBS));
        player.addCard(new Cards(Cards.Rank.JACK, Cards.Suit.CLUBS));
        BlackJackRule rule = new BlackJackRule();

        // When - invoke method
        boolean actual = rule.isBusted(player);

        // Then - verify result
        Assert.assertFalse(actual);
    }

    @Test
    public void testIsBusted_whenScoreIsOver21(){
        // Given - set up data
        Player player = new Player();
        player.addCard(new Cards(Cards.Rank.QUEEN, Cards.Suit.CLUBS));
        player.addCard(new Cards(Cards.Rank.JACK, Cards.Suit.CLUBS));
        player.addCard(new Cards(Cards.Rank.DEUCE, Cards.Suit.CLUBS));

        BlackJackRule rule = new BlackJackRule();

        // When - invoke method
        boolean actual = rule.isBusted(player);

        // Then - verify result
        Assert.assertTrue(actual);

    }

    @Test
    public void testGetWinner_whenPlayerIsBustedAndDealerIsNot(){
        //Given - setup data
        Player player = new Player("Player 1");
        player.addCard(new Cards(Cards.Rank.QUEEN, Cards.Suit.CLUBS));
        player.addCard(new Cards(Cards.Rank.JACK, Cards.Suit.CLUBS));
        player.addCard(new Cards(Cards.Rank.DEUCE, Cards.Suit.CLUBS));

        Player dealer = new Player("Dealer");
        dealer.addCard(new Cards(Cards.Rank.QUEEN, Cards.Suit.DIAMONDS));
        dealer.addCard(new Cards(Cards.Rank.JACK, Cards.Suit.DIAMONDS));

        BlackJackRule rule = new BlackJackRule();


        //When - invoke method
        Player winner = rule.getWinner(dealer, player);

        //Then - verify result
        Assert.assertEquals(dealer, winner);
    }

    @Test
    public void testGetWinner_whenPlayerAndDealerAreBusted(){
        //Given - setup data
        Player player = new Player("Player 1");
        player.addCard(new Cards(Cards.Rank.QUEEN, Cards.Suit.CLUBS));
        player.addCard(new Cards(Cards.Rank.JACK, Cards.Suit.CLUBS));
        player.addCard(new Cards(Cards.Rank.DEUCE, Cards.Suit.CLUBS));

        Player dealer = new Player("Dealer");
        dealer.addCard(new Cards(Cards.Rank.QUEEN, Cards.Suit.DIAMONDS));
        dealer.addCard(new Cards(Cards.Rank.JACK, Cards.Suit.DIAMONDS));
        dealer.addCard(new Cards(Cards.Rank.DEUCE, Cards.Suit.DIAMONDS));

        BlackJackRule rule = new BlackJackRule();


        //When - invoke method
        Player winner = rule.getWinner(dealer, player);

        //Then - verify result
        Assert.assertNull(winner);
    }

    @Test
    public void testGetWinner_whenPlayerHandIsHigherThanDealer(){
        //Given - setup data
        Player player = new Player("Player 1");
        player.addCard(new Cards(Cards.Rank.QUEEN, Cards.Suit.CLUBS));
        player.addCard(new Cards(Cards.Rank.JACK, Cards.Suit.CLUBS));

        Player dealer = new Player("Dealer");
        dealer.addCard(new Cards(Cards.Rank.QUEEN, Cards.Suit.DIAMONDS));
        dealer.addCard(new Cards(Cards.Rank.NINE, Cards.Suit.DIAMONDS));

        BlackJackRule rule = new BlackJackRule();

        //When - invoke method
        Player winner = rule.getWinner(dealer, player);

        //Then - verify result
        Assert.assertEquals(player, winner);
    }

    @Test
    public void testGetWinner_whenDealerHandIsHigherThanPlayer(){
        //Given - setup data
        Player player = new Player("Player 1");
        player.addCard(new Cards(Cards.Rank.QUEEN, Cards.Suit.CLUBS));
        player.addCard(new Cards(Cards.Rank.JACK, Cards.Suit.CLUBS));

        Player dealer = new Player("Dealer");
        dealer.addCard(new Cards(Cards.Rank.QUEEN, Cards.Suit.DIAMONDS));
        dealer.addCard(new Cards(Cards.Rank.ACE, Cards.Suit.DIAMONDS));

        BlackJackRule rule = new BlackJackRule();

        //When - invoke method
        Player winner = rule.getWinner(dealer, player);

        //Then - verify result
        Assert.assertEquals(dealer, winner);
    }

    @Test
    public void testGetWinner_whenDealerIsTheSameAsPlayer(){
        //Given - setup data
        Player player = new Player("Player 1");
        player.addCard(new Cards(Cards.Rank.QUEEN, Cards.Suit.CLUBS));
        player.addCard(new Cards(Cards.Rank.JACK, Cards.Suit.CLUBS));

        Player dealer = new Player("Dealer");
        dealer.addCard(new Cards(Cards.Rank.QUEEN, Cards.Suit.DIAMONDS));
        dealer.addCard(new Cards(Cards.Rank.JACK, Cards.Suit.DIAMONDS));

        BlackJackRule rule = new BlackJackRule();

        //When - invoke method
        Player winner = rule.getWinner(dealer, player);

        //Then - verify result
        Assert.assertNull(winner);
    }
}