238 lines
9.6 KiB
Go
238 lines
9.6 KiB
Go
package pokercore
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import (
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"testing"
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"github.com/stretchr/testify/assert"
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)
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func TestAceLowStraight(t *testing.T) {
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hand := Cards{
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AceOfSpades(),
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DeuceOfHearts(),
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ThreeOfDiamonds(),
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FourOfClubs(),
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FiveOfSpades(),
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}
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assert.True(t, hand.containsStraight(), "Expected hand to be a straight")
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ph, err := hand.PokerHand()
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assert.Nil(t, err, "Expected no error")
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assert.Greater(t, ph.Score, 0, "Expected score to be nonzero 0")
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assert.Less(t, ph.Score, 100000000000000000, "Expected score to be less than 100000000000000000")
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assert.Equal(t, ph.Score, ScoreStraight+1000*FIVE.Score())
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assert.Equal(t, ph.Description(), "a five high straight")
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assert.True(t, hand.HighestRank() == ACE, "Expected highest rank to be an ace")
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assert.True(t, hand.SortByRankAscending().First().Rank == DEUCE, "Expected first card to be a deuce")
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assert.True(t, hand.SortByRankAscending().Last().Rank == ACE, "Expected last card in sorted to be a ace")
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assert.True(t, hand.SortByRankAscending().Second().Rank == THREE, "Expected second card to be a three")
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assert.True(t, hand.SortByRankAscending().Third().Rank == FOUR, "Expected third card to be a four")
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assert.True(t, hand.SortByRankAscending().Fourth().Rank == FIVE, "Expected fourth card to be a five")
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assert.True(t, hand.SortByRankAscending().Fifth().Rank == ACE, "Expected fifth card to be an ace")
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}
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func TestAceHighStraight(t *testing.T) {
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hand := Cards{
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TenOfSpades(),
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JackOfHearts(),
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KingOfClubs(),
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AceOfSpades(),
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QueenOfDiamonds(),
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}
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assert.True(t, hand.containsStraight(), "Expected hand to be a straight")
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newDeck := NewDeckFromCards(hand)
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newDeck.ShuffleDeterministically(123456789)
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shuffledHand := newDeck.Deal(5)
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assert.True(t, shuffledHand.containsStraight(), "Expected hand to still be a straight after shuffle")
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assert.True(t, shuffledHand.HighestRank() == ACE, "Expected highest rank to be an ace")
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sortedHand := shuffledHand.SortByRankAscending()
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assert.True(t, sortedHand[0].Rank == TEN, "Expected lowest rank to be a ten")
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assert.True(t, sortedHand[1].Rank == JACK, "Expected second lowest rank to be a jack")
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assert.True(t, sortedHand[2].Rank == QUEEN, "Expected third lowest rank to be a queen")
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assert.True(t, sortedHand[3].Rank == KING, "Expected fourth lowest rank to be a king")
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assert.True(t, sortedHand[4].Rank == ACE, "Expected highest rank to be an ace")
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}
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func TestOtherStraight(t *testing.T) {
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hand := Cards{
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DeuceOfSpades(),
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ThreeOfHearts(),
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FourOfDiamonds(),
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FiveOfClubs(),
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SixOfSpades(),
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}
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assert.True(t, hand.containsStraight(), "Expected hand to be a straight")
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newDeck := NewDeckFromCards(hand)
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newDeck.ShuffleDeterministically(123456789)
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//fmt.Printf("Shuffled deck: %s\n", newDeck.String())
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//fmt.Printf("new deck has %d cards\n", newDeck.Count())
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shuffledHand := newDeck.Deal(5)
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assert.True(t, shuffledHand.containsStraight(), "Expected hand to still be a straight after shuffle")
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assert.False(t, shuffledHand.containsTwoPair(), "Expected hand to not be two pair")
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assert.False(t, shuffledHand.containsPair(), "Expected hand to not be a pair")
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assert.True(t, shuffledHand.HighestRank() == SIX, "Expected highest rank to be a six")
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assert.True(t, shuffledHand.SortByRankAscending().First().Rank == DEUCE, "Expected first card to be a deuce")
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}
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func TestFlush(t *testing.T) {
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hand := Cards{
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AceOfSpades(),
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DeuceOfSpades(),
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ThreeOfSpades(),
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FourOfSpades(),
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SixOfSpades(),
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}
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assert.True(t, hand.containsFlush(), "Expected hand to be a flush")
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newDeck := NewDeckFromCards(hand)
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newDeck.ShuffleDeterministically(123456789)
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//fmt.Printf("Shuffled deck: %s\n", newDeck.String())
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//fmt.Printf("new deck has %d cards\n", newDeck.Count())
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shuffledHand := newDeck.Deal(5)
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assert.True(t, shuffledHand.containsFlush(), "Expected hand to still be a flush after shuffle")
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// flush value is the sum of the ranks, just like high card
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x := ScoreFlush
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x += ACE.Score()
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x += DEUCE.Score()
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x += THREE.Score()
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x += FOUR.Score()
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x += SIX.Score()
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//fmt.Printf("a-2-3-4-6 flush score should be: %d\n", x)
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ph, err := shuffledHand.PokerHand()
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assert.Nil(t, err, "Expected no error")
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assert.Greater(t, ph.Score, 0, "Expected score to be nonzero 0")
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assert.Equal(t, ph.Score, x)
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}
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func TestStraightFlush(t *testing.T) {
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hand := Cards{
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SixOfSpades(),
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DeuceOfSpades(),
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ThreeOfSpades(),
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FourOfSpades(),
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FiveOfSpades(),
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}
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assert.True(t, hand.containsStraight(), "Expected hand to be a straight")
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assert.True(t, hand.containsFlush(), "Expected hand to be a flush")
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assert.True(t, hand.containsStraightFlush(), "Expected hand to be a straight flush")
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assert.False(t, hand.containsRoyalFlush(), "Expected hand to not be a royal flush")
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assert.False(t, hand.containsFourOfAKind(), "Expected hand to not be four of a kind")
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assert.False(t, hand.containsFullHouse(), "Expected hand to not be a full house")
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assert.False(t, hand.containsThreeOfAKind(), "Expected hand to not be three of a kind")
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assert.False(t, hand.containsTwoPair(), "Expected hand to not be two pair")
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assert.False(t, hand.containsPair(), "Expected hand to not be a pair")
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assert.True(t, hand.HighestRank() == SIX, "Expected highest rank to be a six")
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nd := NewDeckFromCards(hand)
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nd.ShuffleDeterministically(123456789)
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//fmt.Printf("Shuffled deck: %s\n", nd.String())
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//fmt.Printf("new deck has %d cards\n", nd.Count())
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shuffledHand := nd.Deal(5)
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assert.True(t, shuffledHand.containsStraightFlush(), "Expected hand to still be a straight flush after shuffle")
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assert.True(t, shuffledHand.HighestRank() == SIX, "Expected highest rank to still be a six after shuffle")
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assert.True(t, shuffledHand.HighestRank() == SIX, "Expected highest rank to be a six after shuffle even with aces low")
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}
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func TestRoyalFlush(t *testing.T) {
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hand := Cards{
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TenOfSpades(),
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JackOfSpades(),
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QueenOfSpades(),
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KingOfSpades(),
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AceOfSpades(),
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}
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assert.True(t, hand.containsStraight(), "Expected hand to be a straight")
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assert.True(t, hand.containsFlush(), "Expected hand to be a flush")
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assert.True(t, hand.containsStraightFlush(), "Expected hand to be a straight flush")
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assert.True(t, hand.containsRoyalFlush(), "Expected hand to be a royal flush")
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assert.False(t, hand.containsFourOfAKind(), "Expected hand to not be four of a kind")
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assert.False(t, hand.containsFullHouse(), "Expected hand to not be a full house")
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assert.False(t, hand.containsThreeOfAKind(), "Expected hand to not be three of a kind")
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assert.False(t, hand.containsTwoPair(), "Expected hand to not be two pair")
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assert.False(t, hand.containsPair(), "Expected hand to not be a pair")
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assert.True(t, hand.HighestRank() == ACE, "Expected highest rank to be an ace")
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assert.False(t, hand.HighestRank() == TEN, "Expected highest rank to not be an ace")
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}
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func TestUnmadeHand(t *testing.T) {
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hand := Cards{
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TenOfSpades(),
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JackOfDiamonds(),
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QueenOfSpades(),
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KingOfSpades(),
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DeuceOfSpades(),
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}
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assert.False(t, hand.containsStraight(), "Expected hand to not be a straight")
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assert.False(t, hand.containsFlush(), "Expected hand to not be a flush")
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assert.False(t, hand.containsStraightFlush(), "Expected hand to not be a straight flush")
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assert.False(t, hand.containsRoyalFlush(), "Expected hand to not be a royal flush")
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assert.False(t, hand.containsFourOfAKind(), "Expected hand to not be four of a kind")
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assert.False(t, hand.containsFullHouse(), "Expected hand to not be a full house")
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assert.False(t, hand.containsThreeOfAKind(), "Expected hand to not be three of a kind")
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assert.False(t, hand.containsTwoPair(), "Expected hand to not be two pair")
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assert.False(t, hand.containsPair(), "Expected hand to not be a pair")
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assert.True(t, hand.HighestRank() == KING, "Expected highest rank to be a king")
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assert.True(t, hand.isUnmadeHand(), "Expected hand to be unmade")
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}
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func TestTwoPair(t *testing.T) {
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hand := Cards{
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KingOfSpades(),
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JackOfDiamonds(),
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JackOfSpades(),
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KingOfDiamonds(),
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TenOfSpades(),
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}
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assert.False(t, hand.containsStraight(), "Expected hand to not be a straight")
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assert.False(t, hand.containsFlush(), "Expected hand to not be a flush")
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assert.False(t, hand.containsStraightFlush(), "Expected hand to not be a straight flush")
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assert.False(t, hand.containsRoyalFlush(), "Expected hand to not be a royal flush")
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assert.False(t, hand.containsFourOfAKind(), "Expected hand to not be four of a kind")
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assert.False(t, hand.containsFullHouse(), "Expected hand to not be a full house")
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assert.False(t, hand.containsThreeOfAKind(), "Expected hand to not be three of a kind")
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assert.True(t, hand.containsTwoPair(), "Expected hand to be two pair")
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assert.True(t, hand.containsPair(), "Expected hand to also be a pair")
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assert.True(t, hand.HighestRank() == KING, "Expected highest rank to be a king")
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assert.False(t, hand.isUnmadeHand(), "Expected hand to not be unmade")
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}
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func TestHandScore(t *testing.T) {
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hand := Cards{
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KingOfSpades(),
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JackOfDiamonds(),
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JackOfSpades(),
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KingOfDiamonds(),
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TenOfSpades(),
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}
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ph, error := hand.PokerHand()
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assert.Nil(t, error, "Expected no error")
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assert.True(t, ph.Score > 0, "Expected score to be nonzero 0")
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assert.True(t, ph.Score < 100000000000000000, "Expected score to be less than 100000000000000000")
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//fmt.Printf("PokerHand: %v+\n", ph)
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//fmt.Printf("PH score: %d\n", ph.Score)
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}
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func TestTwoPairBug(t *testing.T) {
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// this is an actual bug in the first implementation
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c, err := NewCardsFromString("9♠,9♣,Q♥,Q♦,K♣")
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assert.Nil(t, err, "Expected no error")
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//fmt.Printf("Cards: %v+\n", c)
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ph, err := c.PokerHand()
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assert.Nil(t, err, "Expected no error")
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assert.Greater(t, ph.Score, 0, "Expected score to be nonzero 0")
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desc := ph.Description()
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assert.Equal(t, desc, "two pair, queens and nines with a king")
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//fmt.Printf("PokerHand: %v+\n", ph)
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//fmt.Printf("PH score: %d\n", ph.Score)
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}
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