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Make play() tests more readable

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This commit is contained in:
Dave Burke
2022-03-03 21:49:47 -06:00
parent 9fac5530e4
commit 1f24d98a72
1 changed files with 107 additions and 64 deletions
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171
10_Blackjack/java/test/GameTest.java
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@@ -1,5 +1,7 @@
import org.junit.jupiter.api.Test;
import org.junit.jupiter.api.AfterEach;
import org.junit.jupiter.api.BeforeEach;
import org.junit.jupiter.api.DisplayName;
import static org.junit.jupiter.api.Assertions.assertAll;
@@ -20,38 +22,32 @@ public class GameTest {
private StringWriter out;
private Game game;
// TODO See if it's possible to initialize test data in a more readable way.
// e.g.
// playerGets(Card)
// playerGets(Card)
// playerDoes(String)
// playerGets(Card)
// playerDoes(String)
// initGame(g) // Creates the deck and initializes 'in' based on values accumulated from prior calls to playerGets and playerDoes.
private StringBuilder playerActions;
private LinkedList<Card> cards;
private void givenStubGame() {
in = new StringReader("");
out = new StringWriter();
UserIo userIo = new UserIo(in, out);
Deck deck = new Deck((cards) -> cards);
game = new Game(deck, userIo);
@BeforeEach
public void resetIo() {
in = null;
out = null;
game = null;
playerActions = new StringBuilder();
cards = new LinkedList<>();
}
private void givenInput(String input) {
in = new StringReader(input);
out = new StringWriter();
UserIo userIo = new UserIo(in, out);
Deck deck = new Deck((cards) -> cards);
game = new Game(deck, userIo);
private void playerGets(int value, Card.Suit suit) {
cards.add(new Card(value, suit));
}
private void givenInput(String input, Card... customCards) {
in = new StringReader(input);
private void playerSays(String action) {
playerActions.append(action).append(System.lineSeparator());
}
private void initGame() {
System.out.printf("Running game with input: %s\tand cards: %s\n",playerActions.toString(), cards);
in = new StringReader(playerActions.toString());
out = new StringWriter();
UserIo userIo = new UserIo(in, out);
LinkedList<Card> cardList = new LinkedList<>();
cardList.addAll(Arrays.asList(customCards));
Deck deck = new Deck((cards) -> cardList);
Deck deck = new Deck((c) -> cards);
game = new Game(deck, userIo);
}
@@ -63,7 +59,8 @@ public class GameTest {
@Test
public void shouldQuitOnCtrlD() {
// Given
givenInput("\u2404"); // U+2404 is "End of Transmission" sent by CTRL+D (or CTRL+Z on Windows)
playerSays("\u2404"); // U+2404 is "End of Transmission" sent by CTRL+D (or CTRL+Z on Windows)
initGame();
// When
Exception e = assertThrows(UncheckedIOException.class, game::run);
@@ -80,7 +77,8 @@ public class GameTest {
Player player = new Player(1);
player.dealCard(new Card(3, Card.Suit.CLUBS));
player.dealCard(new Card(2, Card.Suit.SPADES));
givenInput("S\n"); // "I also like to live dangerously."
playerSays("S"); // "I also like to live dangerously."
initGame();
// When
game.play(player);
@@ -97,10 +95,13 @@ public class GameTest {
player.dealCard(new Card(10, Card.Suit.HEARTS));
player.dealCard(new Card(10, Card.Suit.SPADES));
givenInput("H\nH\nH\n",
new Card(1, Card.Suit.SPADES), // 20
new Card(1, Card.Suit.HEARTS), // 21
new Card(1, Card.Suit.CLUBS)); // 22 - D'oh!
playerSays("H");
playerGets(1, Card.Suit.SPADES); // 20
playerSays("H");
playerGets(1, Card.Suit.HEARTS); // 21
playerSays("H");
playerGets(1, Card.Suit.CLUBS); // 22 - D'oh!
initGame();
// When
game.play(player);
@@ -112,13 +113,16 @@ public class GameTest {
@Test
@DisplayName("Should allow double down on initial turn")
public void playDoubleDown(){
System.out.println("Here");
// Given
Player player = new Player(1);
player.setCurrentBet(100);
player.dealCard(new Card(10, Card.Suit.HEARTS));
player.dealCard(new Card(4, Card.Suit.SPADES));
givenInput("D\n", new Card(7, Card.Suit.SPADES));
playerSays("D");
playerGets(7, Card.Suit.SPADES);
initGame();
// When
game.play(player);
@@ -137,7 +141,11 @@ public class GameTest {
player.dealCard(new Card(10, Card.Suit.HEARTS));
player.dealCard(new Card(2, Card.Suit.SPADES));
givenInput("H\nD\nS\n", new Card(7, Card.Suit.SPADES));
playerSays("H");
playerGets(7, Card.Suit.SPADES);
playerSays("D");
playerSays("S");
initGame();
// When
game.play(player);
@@ -150,12 +158,13 @@ public class GameTest {
@DisplayName("scoreHand should sum non-ace values normally")
public void scoreHandNormally() {
// Given
givenStubGame();
LinkedList<Card> hand = new LinkedList<>();
hand.add(new Card(4, Card.Suit.SPADES));
hand.add(new Card(6, Card.Suit.SPADES));
hand.add(new Card(10, Card.Suit.SPADES));
initGame();
// When
int result = game.scoreHand(hand);
@@ -167,12 +176,13 @@ public class GameTest {
@DisplayName("scoreHand should treat face cards as 10")
public void scoreHandFaceCards() {
// Given
givenStubGame();
LinkedList<Card> hand = new LinkedList<>();
hand.add(new Card(11, Card.Suit.SPADES));
hand.add(new Card(12, Card.Suit.SPADES));
hand.add(new Card(13, Card.Suit.SPADES));
initGame();
// When
int result = game.scoreHand(hand);
@@ -184,11 +194,12 @@ public class GameTest {
@DisplayName("scoreHand should score aces as 11 when possible")
public void scoreHandSoftAce() {
// Given
givenStubGame();
LinkedList<Card> hand = new LinkedList<>();
hand.add(new Card(10, Card.Suit.SPADES));
hand.add(new Card(1, Card.Suit.SPADES));
initGame();
// When
int result = game.scoreHand(hand);
@@ -200,12 +211,13 @@ public class GameTest {
@DisplayName("scoreHand should score aces as 1 when using 11 would bust")
public void scoreHandHardAce() {
// Given
givenStubGame();
LinkedList<Card> hand = new LinkedList<>();
hand.add(new Card(10, Card.Suit.SPADES));
hand.add(new Card(9, Card.Suit.SPADES));
hand.add(new Card(1, Card.Suit.SPADES));
initGame();
// When
int result = game.scoreHand(hand);
@@ -217,12 +229,13 @@ public class GameTest {
@DisplayName("scoreHand should score 3 aces as 13")
public void scoreHandMultipleAces() {
// Given
givenStubGame();
LinkedList<Card> hand = new LinkedList<>();
hand.add(new Card(1, Card.Suit.SPADES));
hand.add(new Card(1, Card.Suit.CLUBS));
hand.add(new Card(1, Card.Suit.HEARTS));
initGame();
// When
int result = game.scoreHand(hand);
@@ -233,8 +246,6 @@ public class GameTest {
@Test
@DisplayName("compareHands should return 1 meaning A beat B, 20 to 12")
public void compareHandsAWins() {
givenStubGame();
LinkedList<Card> handA = new LinkedList<>();
handA.add(new Card(10, Card.Suit.SPADES));
handA.add(new Card(10, Card.Suit.CLUBS));
@@ -243,6 +254,8 @@ public class GameTest {
handB.add(new Card(1, Card.Suit.SPADES));
handB.add(new Card(1, Card.Suit.CLUBS));
initGame();
int result = game.compareHands(handA,handB);
assertEquals(1, result);
@@ -251,7 +264,6 @@ public class GameTest {
@Test
@DisplayName("compareHands should return -1 meaning B beat A, 18 to 4")
public void compareHandsBwins() {
givenStubGame();
LinkedList<Card> handA = new LinkedList<>();
handA.add(new Card(2, Card.Suit.SPADES));
handA.add(new Card(2, Card.Suit.CLUBS));
@@ -261,6 +273,8 @@ public class GameTest {
handB.add(new Card(6, Card.Suit.HEARTS));
handB.add(new Card(7, Card.Suit.CLUBS));
initGame();
int result = game.compareHands(handA,handB);
assertEquals(-1, result);
@@ -270,7 +284,6 @@ public class GameTest {
@DisplayName("compareHands should return 1 meaning A beat B, natural Blackjack to Blackjack")
public void compareHandsAWinsWithNaturalBlackJack() {
//Hand A wins with natural BlackJack, B with Blackjack
givenStubGame();
LinkedList<Card> handA = new LinkedList<>();
handA.add(new Card(10, Card.Suit.SPADES));
handA.add(new Card(1, Card.Suit.CLUBS));
@@ -280,6 +293,8 @@ public class GameTest {
handB.add(new Card(7, Card.Suit.HEARTS));
handB.add(new Card(8, Card.Suit.CLUBS));
initGame();
int result = game.compareHands(handA,handB);
assertEquals(1, result);
@@ -288,7 +303,6 @@ public class GameTest {
@Test
@DisplayName("compareHands should return -1 meaning B beat A, natural Blackjack to Blackjack")
public void compareHandsBWinsWithNaturalBlackJack() {
givenStubGame();
LinkedList<Card> handA = new LinkedList<>();
handA.add(new Card(6, Card.Suit.SPADES));
handA.add(new Card(7, Card.Suit.HEARTS));
@@ -298,6 +312,8 @@ public class GameTest {
handB.add(new Card(10, Card.Suit.SPADES));
handB.add(new Card(1, Card.Suit.CLUBS));
initGame();
int result = game.compareHands(handA,handB);
assertEquals(-1, result);
@@ -306,7 +322,6 @@ public class GameTest {
@Test
@DisplayName("compareHands should return 0, hand A and B tied with a Blackjack")
public void compareHandsTieBothBlackJack() {
givenStubGame();
LinkedList<Card> handA = new LinkedList<>();
handA.add(new Card(11, Card.Suit.SPADES));
handA.add(new Card(10, Card.Suit.CLUBS));
@@ -315,6 +330,8 @@ public class GameTest {
handB.add(new Card(10, Card.Suit.SPADES));
handB.add(new Card(11, Card.Suit.CLUBS));
initGame();
int result = game.compareHands(handA,handB);
assertEquals(0, result);
@@ -323,7 +340,6 @@ public class GameTest {
@Test
@DisplayName("compareHands should return 0, hand A and B tie without a Blackjack")
public void compareHandsTieNoBlackJack() {
givenStubGame();
LinkedList<Card> handA = new LinkedList<>();
handA.add(new Card(10, Card.Suit.DIAMONDS));
handA.add(new Card(10, Card.Suit.HEARTS));
@@ -332,6 +348,8 @@ public class GameTest {
handB.add(new Card(10, Card.Suit.SPADES));
handB.add(new Card(10, Card.Suit.CLUBS));
initGame();
int result = game.compareHands(handA,handB);
assertEquals(0, result);
@@ -344,7 +362,13 @@ public class GameTest {
Player player = new Player(1);
player.dealCard(new Card(1, Card.Suit.CLUBS));
player.dealCard(new Card(1, Card.Suit.SPADES));
givenInput("/\nS\nS\n");
playerSays("/");
playerGets(2, Card.Suit.SPADES); // First hand
playerSays("S");
playerGets(2, Card.Suit.SPADES); // Second hand
playerSays("S");
initGame();
// When
game.play(player);
@@ -362,10 +386,13 @@ public class GameTest {
player.dealCard(new Card(10, Card.Suit.HEARTS));
player.dealCard(new Card(10, Card.Suit.SPADES));
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.
playerSays("/");
playerGets(12, Card.Suit.SPADES); // First hand has 20
playerSays("H");
playerGets(12, Card.Suit.HEARTS); // First hand busted
playerGets(10, Card.Suit.HEARTS); // Second hand gets a 10
playerSays("S");
initGame();
// When
game.play(player);
@@ -382,10 +409,14 @@ public class GameTest {
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
playerSays("/");
playerGets(1, Card.Suit.CLUBS); // First hand is 21
playerSays("S");
playerGets(12, Card.Suit.SPADES); // Second hand is 20
playerSays("H");
playerGets(12, Card.Suit.HEARTS); // Busted
playerSays("H");
initGame();
// When
game.play(player);
@@ -403,10 +434,14 @@ public class GameTest {
player.dealCard(new Card(9, Card.Suit.HEARTS));
player.dealCard(new Card(9, Card.Suit.SPADES));
givenInput("/\nD\nD\n",
new Card(5, Card.Suit.DIAMONDS),
new Card(6, Card.Suit.HEARTS),
new Card(7, Card.Suit.CLUBS));
playerSays("/");
playerGets(5, Card.Suit.DIAMONDS); // First hand is 14
playerSays("D");
playerGets(6, Card.Suit.HEARTS); // First hand is 20
playerGets(7, Card.Suit.CLUBS); // Second hand is 16
playerSays("D");
playerGets(4, Card.Suit.CLUBS); // Second hand is 20
initGame();
// When
game.play(player);
@@ -429,9 +464,13 @@ public class GameTest {
player.dealCard(new Card(1, Card.Suit.HEARTS));
player.dealCard(new Card(1, Card.Suit.SPADES));
givenInput("/\n/\nS\nS\n",
new Card(13, Card.Suit.CLUBS),
new Card(13, Card.Suit.SPADES));
playerSays("/");
playerGets(13, Card.Suit.CLUBS); // First hand
playerSays("/"); // Not allowed
playerSays("S");
playerGets(13, Card.Suit.SPADES); // Second hand
playerSays("S");
initGame();
// When
game.play(player);
@@ -449,9 +488,13 @@ public class GameTest {
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));
playerSays("/");
playerGets(13, Card.Suit.CLUBS); // First hand
playerSays("S");
playerGets(13, Card.Suit.SPADES); // Second hand
playerSays("/"); // Not allowed
playerSays("S");
initGame();
// When
game.play(player);