blackjack/tests/test_hand.py

import pytest

from pyjack.card import Card
from pyjack.hand import Hand


@pytest.fixture
def default_hand():
    my_hand = Hand()
    return my_hand


def test_adding_card_to_hand(default_hand):
    default_hand.add_card(Card("diamonds", "2"))
    default_hand.add_card(Card("spades", "A"))

    assert default_hand.value == 13
    assert len(default_hand.cards) == 2


def test_adjusting_for_ace(default_hand):
    """Tests if the value of an ace is adjusted if the hand holds 1 ace
    and two cards, making the value of the hand > 21"""

    # Creating a hand with a value pre adjustment of 31
    cards = [Card("spades", "10"), Card("diamonds", "K"), Card("heart", "A")]
    for card in cards:
        default_hand.add_card(card)

    default_hand.adjust_for_aces()

    assert default_hand.value == 21


def testing_adjusting_for_multiple_aces(default_hand):
    """ "Testing if multiple aces a treated correctly, resulting in the
    hands value to be 12."""
    # Creating a hand with a value pre adjustment of 32
    cards = [Card("spades", "10"), Card("diamonds", "A"), Card("heart", "A")]
    for card in cards:
        default_hand.add_card(card)

    default_hand.adjust_for_aces()

    assert default_hand.value == 12