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Refactor Game.play() to handle split hands more elegantly

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This commit is contained in:
Dave Burke
2022-03-02 22:15:44 -06:00
parent ccbed873e5
commit 5e950275fa
3 changed files with 180 additions and 137 deletions
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94
10_Blackjack/java/test/GameTest.java
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@@ -1,6 +1,8 @@
import org.junit.jupiter.api.Test;
import org.junit.jupiter.api.AfterEach;
import org.junit.jupiter.api.DisplayName;
import static org.junit.jupiter.api.Assertions.assertAll;
import static org.junit.jupiter.api.Assertions.assertEquals;
import static org.junit.jupiter.api.Assertions.assertThrows;
import static org.junit.jupiter.api.Assertions.assertTrue;
@@ -44,6 +46,11 @@ public class GameTest {
game = new Game(deck, userIo);
}
@AfterEach
private void printOutput() {
System.out.println(out.toString());
}
@Test
public void shouldQuitOnCtrlD() {
// Given
@@ -322,16 +329,16 @@ public class GameTest {
}
@Test
@DisplayName("playSplit() should end on STAY")
@DisplayName("play() should end on STAY after split")
public void playSplitEndOnStay(){
// Given
Player player = new Player(1);
player.dealCard(new Card(1, Card.Suit.CLUBS));
player.dealCard(new Card(1, Card.Suit.SPADES));
givenInput("S\nS\n");
givenInput("/\nS\nS\n");
// When
game.playSplit(player);
game.play(player);
// Then
assertTrue(out.toString().contains("FIRST HAND RECEIVES"));
@@ -339,28 +346,47 @@ public class GameTest {
}
@Test
@DisplayName("playSplit() should allow HIT until BUST")
@DisplayName("play() should allow HIT until BUST after split")
public void playSplitHitUntilBust() {
// Given
Player player = new Player(1);
player.dealCard(new Card(10, Card.Suit.HEARTS));
player.dealCard(new Card(10, Card.Suit.SPADES));
givenInput("H\nH\n",
new Card(12, Card.Suit.SPADES), // 20
new Card(12, Card.Suit.HEARTS), // Split hand 20
new Card(12, Card.Suit.DIAMONDS), // 30
new Card(12, Card.Suit.CLUBS)); // Split hand 30
givenInput("/\nH\nS\n",
new Card(12, Card.Suit.SPADES), // First hand has 20. Player hits.
new Card(12, Card.Suit.HEARTS), // First hand busted
new Card(10, Card.Suit.HEARTS)); // Second hand gets a 10. Player stays.
// When
game.playSplit(player);
game.play(player);
// Then
assertTrue(out.toString().contains("BUSTED"));
}
@Test
@DisplayName("playSplit should allow double down")
@DisplayName("play() should allow HIT on split hand until BUST")
public void playSplitHitUntilBustHand2() {
// Given
Player player = new Player(1);
player.dealCard(new Card(10, Card.Suit.HEARTS));
player.dealCard(new Card(10, Card.Suit.SPADES));
givenInput("/\nS\nH\nH\n",
new Card(1, Card.Suit.CLUBS), // Dealt to first split hand. Player stays.
new Card(12, Card.Suit.SPADES), // Split hand = 20
new Card(12, Card.Suit.HEARTS)); // Split hand busted
// When
game.play(player);
// Then
assertTrue(out.toString().contains("BUSTED"));
}
@Test
@DisplayName("play() should allow double down on split hands")
public void playSplitDoubleDown(){
// Given
Player player = new Player(1);
@@ -368,40 +394,60 @@ public class GameTest {
player.dealCard(new Card(9, Card.Suit.HEARTS));
player.dealCard(new Card(9, Card.Suit.SPADES));
givenInput("D\nD\n",
givenInput("/\nD\nD\n",
new Card(5, Card.Suit.DIAMONDS),
new Card(6, Card.Suit.HEARTS),
new Card(7, Card.Suit.HEARTS),
new Card(6, Card.Suit.CLUBS),
new Card(7, Card.Suit.CLUBS));
// When
game.playSplit(player);
game.play(player);
// Then
assertTrue(player.getCurrentBet() == 200);
assertTrue(player.getSplitBet() == 200);
assertTrue(player.getHand().size() == 3);
assertTrue(player.getSplitHand().size() == 3);
assertAll(
() -> assertEquals(200, player.getCurrentBet(), "Current bet should be doubled"),
() -> assertEquals(200, player.getSplitBet(), "Split bet should be doubled"),
() -> assertEquals(3, player.getHand(1).size(), "First hand should have exactly three cards"),
() -> assertEquals(3, player.getHand(2).size(), "Second hand should have exactly three cards")
);
}
@Test
@DisplayName("playSplit should NOT allow re-splitting")
public void playSplitDoubleDownLate(){
@DisplayName("play() should NOT allow re-splitting first split hand")
public void playSplitTwice(){
// Given
Player player = new Player(1);
player.setCurrentBet(100);
player.dealCard(new Card(1, Card.Suit.HEARTS));
player.dealCard(new Card(1, Card.Suit.SPADES));
givenInput("/\nS\nS\n",
new Card(13, Card.Suit.HEARTS),
givenInput("/\n/\nS\nS\n",
new Card(13, Card.Suit.CLUBS),
new Card(13, Card.Suit.SPADES));
// When
game.playSplit(player);
game.play(player);
// Then
assertTrue(out.toString().contains("TYPE H, S OR D, PLEASE"));
}
@Test
@DisplayName("play() should NOT allow re-splitting second split hand")
public void playSplitTwiceHand2(){
// Given
Player player = new Player(1);
player.setCurrentBet(100);
player.dealCard(new Card(1, Card.Suit.HEARTS));
player.dealCard(new Card(1, Card.Suit.SPADES));
givenInput("/\nS\n/\nS\n",
new Card(13, Card.Suit.SPADES),
new Card(13, Card.Suit.SPADES));
// When
game.play(player);
// Then
assertTrue(out.toString().contains("TYPE H, S OR D, PLEASE"));
}
}