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229 lines
7.4 KiB
Python
229 lines
7.4 KiB
Python
import os
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from itertools import chain
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from random import randrange, shuffle
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import pytest
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from .sol1 import PokerHand
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SORTED_HANDS = (
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"4S 3H 2C 7S 5H",
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"9D 8H 2C 6S 7H",
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"2D 6D 9D TH 7D",
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"TC 8C 2S JH 6C",
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"JH 8S TH AH QH",
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"TS KS 5S 9S AC",
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"KD 6S 9D TH AD",
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"KS 8D 4D 9S 4S", # pair
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"8C 4S KH JS 4D", # pair
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"QH 8H KD JH 8S", # pair
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"KC 4H KS 2H 8D", # pair
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"KD 4S KC 3H 8S", # pair
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"AH 8S AS KC JH", # pair
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"3H 4C 4H 3S 2H", # 2 pairs
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"5S 5D 2C KH KH", # 2 pairs
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"3C KH 5D 5S KH", # 2 pairs
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"AS 3C KH AD KH", # 2 pairs
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"7C 7S 3S 7H 5S", # 3 of a kind
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"7C 7S KH 2H 7H", # 3 of a kind
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"AC KH QH AH AS", # 3 of a kind
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"2H 4D 3C AS 5S", # straight (low ace)
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"3C 5C 4C 2C 6H", # straight
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"6S 8S 7S 5H 9H", # straight
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"JS QS 9H TS KH", # straight
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"QC KH TS JS AH", # straight (high ace)
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"8C 9C 5C 3C TC", # flush
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"3S 8S 9S 5S KS", # flush
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"4C 5C 9C 8C KC", # flush
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"JH 8H AH KH QH", # flush
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"3D 2H 3H 2C 2D", # full house
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"2H 2C 3S 3H 3D", # full house
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"KH KC 3S 3H 3D", # full house
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"JC 6H JS JD JH", # 4 of a kind
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"JC 7H JS JD JH", # 4 of a kind
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"JC KH JS JD JH", # 4 of a kind
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"2S AS 4S 5S 3S", # straight flush (low ace)
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"2D 6D 3D 4D 5D", # straight flush
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"5C 6C 3C 7C 4C", # straight flush
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"JH 9H TH KH QH", # straight flush
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"JH AH TH KH QH", # royal flush (high ace straight flush)
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)
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TEST_COMPARE = (
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("2H 3H 4H 5H 6H", "KS AS TS QS JS", "Loss"),
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("2H 3H 4H 5H 6H", "AS AD AC AH JD", "Win"),
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("AS AH 2H AD AC", "JS JD JC JH 3D", "Win"),
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("2S AH 2H AS AC", "JS JD JC JH AD", "Loss"),
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("2S AH 2H AS AC", "2H 3H 5H 6H 7H", "Win"),
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("AS 3S 4S 8S 2S", "2H 3H 5H 6H 7H", "Win"),
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("2H 3H 5H 6H 7H", "2S 3H 4H 5S 6C", "Win"),
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("2S 3H 4H 5S 6C", "3D 4C 5H 6H 2S", "Tie"),
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("2S 3H 4H 5S 6C", "AH AC 5H 6H AS", "Win"),
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("2S 2H 4H 5S 4C", "AH AC 5H 6H AS", "Loss"),
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("2S 2H 4H 5S 4C", "AH AC 5H 6H 7S", "Win"),
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("6S AD 7H 4S AS", "AH AC 5H 6H 7S", "Loss"),
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("2S AH 4H 5S KC", "AH AC 5H 6H 7S", "Loss"),
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("2S 3H 6H 7S 9C", "7H 3C TH 6H 9S", "Loss"),
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("4S 5H 6H TS AC", "3S 5H 6H TS AC", "Win"),
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("2S AH 4H 5S 6C", "AD 4C 5H 6H 2C", "Tie"),
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("AS AH 3H AD AC", "AS AH 2H AD AC", "Win"),
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("AH AC 5H 5C QS", "AH AC 5H 5C KS", "Loss"),
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("AH AC 5H 5C QS", "KH KC 5H 5C QS", "Win"),
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("7C 7S KH 2H 7H", "3C 3S AH 2H 3H", "Win"),
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("3C 3S AH 2H 3H", "7C 7S KH 2H 7H", "Loss"),
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("6H 5H 4H 3H 2H", "5H 4H 3H 2H AH", "Win"),
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("5H 4H 3H 2H AH", "5H 4H 3H 2H AH", "Tie"),
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("5H 4H 3H 2H AH", "6H 5H 4H 3H 2H", "Loss"),
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("AH AD KS KC AC", "AH KD KH AC KC", "Win"),
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("2H 4D 3C AS 5S", "2H 4D 3C 6S 5S", "Loss"),
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("2H 3S 3C 3H 2S", "3S 3C 2S 2H 2D", "Win"),
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("4D 6D 5D 2D JH", "3S 8S 3H TC KH", "Loss"),
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("4S 6C 8S 3S 7S", "AD KS 2D 7D 7C", "Loss"),
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("6S 4C 7H 8C 3H", "5H JC AH 9D 9C", "Loss"),
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("9D 9H JH TC QH", "3C 2S JS 5C 7H", "Win"),
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("2H TC 8S AD 9S", "4H TS 7H 2C 5C", "Win"),
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("9D 3S 2C 7S 7C", "JC TD 3C TC 9H", "Loss"),
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)
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TEST_FLUSH = (
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("2H 3H 4H 5H 6H", True),
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("AS AH 2H AD AC", False),
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("2H 3H 5H 6H 7H", True),
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("KS AS TS QS JS", True),
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("8H 9H QS JS TH", False),
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("AS 3S 4S 8S 2S", True),
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)
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TEST_STRAIGHT = (
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("2H 3H 4H 5H 6H", True),
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("AS AH 2H AD AC", False),
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("2H 3H 5H 6H 7H", False),
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("KS AS TS QS JS", True),
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("8H 9H QS JS TH", True),
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)
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TEST_FIVE_HIGH_STRAIGHT = (
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("2H 4D 3C AS 5S", True, [5, 4, 3, 2, 14]),
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("2H 5D 3C AS 5S", False, [14, 5, 5, 3, 2]),
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("JH QD KC AS TS", False, [14, 13, 12, 11, 10]),
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("9D 3S 2C 7S 7C", False, [9, 7, 7, 3, 2]),
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)
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TEST_KIND = (
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("JH AH TH KH QH", 0),
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("JH 9H TH KH QH", 0),
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("JC KH JS JD JH", 7),
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("KH KC 3S 3H 3D", 6),
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("8C 9C 5C 3C TC", 0),
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("JS QS 9H TS KH", 0),
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("7C 7S KH 2H 7H", 3),
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("3C KH 5D 5S KH", 2),
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("QH 8H KD JH 8S", 1),
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("2D 6D 9D TH 7D", 0),
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)
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TEST_TYPES = (
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("JH AH TH KH QH", 23),
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("JH 9H TH KH QH", 22),
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("JC KH JS JD JH", 21),
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("KH KC 3S 3H 3D", 20),
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("8C 9C 5C 3C TC", 19),
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("JS QS 9H TS KH", 18),
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("7C 7S KH 2H 7H", 17),
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("3C KH 5D 5S KH", 16),
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("QH 8H KD JH 8S", 15),
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("2D 6D 9D TH 7D", 14),
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)
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def generate_random_hand():
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play, oppo = randrange(len(SORTED_HANDS)), randrange(len(SORTED_HANDS))
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expected = ["Loss", "Tie", "Win"][(play >= oppo) + (play > oppo)]
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hand, other = SORTED_HANDS[play], SORTED_HANDS[oppo]
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return hand, other, expected
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def generate_random_hands(number_of_hands: int = 100):
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return (generate_random_hand() for _ in range(number_of_hands))
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@pytest.mark.parametrize("hand, expected", TEST_FLUSH)
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def test_hand_is_flush(hand, expected):
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assert PokerHand(hand)._is_flush() == expected
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@pytest.mark.parametrize("hand, expected", TEST_STRAIGHT)
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def test_hand_is_straight(hand, expected):
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assert PokerHand(hand)._is_straight() == expected
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@pytest.mark.parametrize("hand, expected, card_values", TEST_FIVE_HIGH_STRAIGHT)
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def test_hand_is_five_high_straight(hand, expected, card_values):
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player = PokerHand(hand)
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assert player._is_five_high_straight() == expected
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assert player._card_values == card_values
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@pytest.mark.parametrize("hand, expected", TEST_KIND)
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def test_hand_is_same_kind(hand, expected):
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assert PokerHand(hand)._is_same_kind() == expected
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@pytest.mark.parametrize("hand, expected", TEST_TYPES)
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def test_hand_values(hand, expected):
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assert PokerHand(hand)._hand_type == expected
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@pytest.mark.parametrize("hand, other, expected", TEST_COMPARE)
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def test_compare_simple(hand, other, expected):
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assert PokerHand(hand).compare_with(PokerHand(other)) == expected
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@pytest.mark.parametrize("hand, other, expected", generate_random_hands())
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def test_compare_random(hand, other, expected):
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assert PokerHand(hand).compare_with(PokerHand(other)) == expected
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def test_hand_sorted():
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POKER_HANDS = [PokerHand(hand) for hand in SORTED_HANDS]
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list_copy = POKER_HANDS.copy()
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shuffle(list_copy)
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user_sorted = chain(sorted(list_copy))
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for index, hand in enumerate(user_sorted):
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assert hand == POKER_HANDS[index]
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def test_custom_sort_five_high_straight():
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# Test that five high straights are compared correctly.
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pokerhands = [PokerHand("2D AC 3H 4H 5S"), PokerHand("2S 3H 4H 5S 6C")]
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pokerhands.sort(reverse=True)
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assert pokerhands[0].__str__() == "2S 3H 4H 5S 6C"
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def test_multiple_calls_five_high_straight():
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# Multiple calls to five_high_straight function should still return True
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# and shouldn't mutate the list in every call other than the first.
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pokerhand = PokerHand("2C 4S AS 3D 5C")
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expected = True
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expected_card_values = [5, 4, 3, 2, 14]
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for _ in range(10):
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assert pokerhand._is_five_high_straight() == expected
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assert pokerhand._card_values == expected_card_values
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def test_euler_project():
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# Problem number 54 from Project Euler
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# Testing from poker_hands.txt file
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answer = 0
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script_dir = os.path.abspath(os.path.dirname(__file__))
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poker_hands = os.path.join(script_dir, "poker_hands.txt")
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with open(poker_hands) as file_hand:
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for line in file_hand:
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player_hand = line[:14].strip()
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opponent_hand = line[15:].strip()
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player, opponent = PokerHand(player_hand), PokerHand(opponent_hand)
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output = player.compare_with(opponent)
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if output == "Win":
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answer += 1
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assert answer == 376
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