added tests

pyproject.toml

@@ -0,0 +1,4 @@
+[tool.pytest.ini_options]
+
+pythonpath="src"
+testpaths="tests"

tests/test_card.py

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+import pytest
+
+from pyjack.card import Card
+
+
+@pytest.fixture
+def cards():
+    cards = [
+        Card("diamonds", "2"),
+        Card("hearts", "A"),
+        Card("clubs", "9"),
+        Card("spades", "Q"),
+    ]
+    return cards
+
+
+@pytest.fixture
+def expected_values():
+    values = [2, 11, 9, 10]
+    return values
+
+
+@pytest.fixture
+def expected_strings():
+    strings = [
+        "2 of diamonds",
+        "A of hearts",
+        "9 of clubs",
+        "Q of spades",
+    ]
+    return strings
+
+
+def test_get_value(cards, expected_values):
+    """tests if the correct value is returned by the function"""
+    results = []
+    for card in cards:
+        results.append(card.get_value())
+
+    # The zip() function takes multiple iterable objects (like lists
+    # or tuples) and combines them element-wise, creating an iterator
+    # of tuples. Each tuple contains one element from each input
+    # iterable at the corresponding index.
+    # It effectively allows for parallel iteration.
+    for expected_value, result in zip(expected_values, results):
+        assert expected_value == result
+
+
+def test_default_return_value(cards, expected_strings):
+    """Tests if the __str__ method returns the correct value"""
+
+    assert expected_strings == [card.__str__() for card in cards]

tests/test_deck.py

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+import pytest
+from pyjack.deck import Deck
+
+
+@pytest.fixture
+def default_deck() -> Deck:
+    deck = Deck()
+    return deck
+
+
+def test_deck_init(default_deck):
+    """Tests if the right amount of cards is created"""
+    assert len(default_deck.cards) == 52
+
+
+def test_shuffle_deck(default_deck):
+    """Tests if the deck is randomized after method call"""
+    assert default_deck != default_deck.shuffle()
+
+
+def test_card_dealing(default_deck):
+    """Tests if the a card is correctly removed from the deck."""
+    default_deck.shuffle()
+    removed_card = default_deck.deal_card()
+    assert len(default_deck.cards) == 51
+    assert removed_card is not None