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Python/maths/test_factorial.py
Qasim Umar 7665ba5e25 Add unit tests for factorial.py (#12815)
* Add unit tests for factorial.py

* [pre-commit.ci] auto fixes from pre-commit.com hooks

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* uvx --python=3.12 unittest2pytest --write test_factorial.py

* Update error message in current_stock_price.py

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Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>
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2025-07-05 12:58:45 +02:00

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Python

# /// script
# requires-python = ">=3.13"
# dependencies = [
# "pytest",
# ]
# ///
import pytest
from maths.factorial import factorial, factorial_recursive
@pytest.mark.parametrize("function", [factorial, factorial_recursive])
def test_zero(function):
assert function(0) == 1
@pytest.mark.parametrize("function", [factorial, factorial_recursive])
def test_positive_integers(function):
assert function(1) == 1
assert function(5) == 120
assert function(7) == 5040
@pytest.mark.parametrize("function", [factorial, factorial_recursive])
def test_large_number(function):
assert function(10) == 3628800
@pytest.mark.parametrize("function", [factorial, factorial_recursive])
def test_negative_number(function):
with pytest.raises(ValueError):
function(-3)
if __name__ == "__main__":
pytest.main(["-v", __file__])