From 7665ba5e257a1a42caa36d781925d87968ee1497 Mon Sep 17 00:00:00 2001
From: Qasim Umar <111963035+QasimUmarKhan@users.noreply.github.com>
Date: Sat, 5 Jul 2025 15:58:45 +0500
Subject: [PATCH] Add unit tests for factorial.py (#12815)

* Add unit tests for factorial.py

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

for more information, see https://pre-commit.ci

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

* Update error message in current_stock_price.py

---------

Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>
Co-authored-by: Christian Clauss <cclauss@me.com>
---
 maths/test_factorial.py                | 37 ++++++++++++++++++++++++++
 web_programming/current_stock_price.py |  2 +-
 2 files changed, 38 insertions(+), 1 deletion(-)
 create mode 100644 maths/test_factorial.py

diff --git a/maths/test_factorial.py b/maths/test_factorial.py
new file mode 100644
index 000000000..d80d88add
--- /dev/null
+++ b/maths/test_factorial.py
@@ -0,0 +1,37 @@
+# /// 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__])
diff --git a/web_programming/current_stock_price.py b/web_programming/current_stock_price.py
index 16b0b6772..531da949e 100644
--- a/web_programming/current_stock_price.py
+++ b/web_programming/current_stock_price.py
@@ -23,7 +23,7 @@ Current ORCL stock price is   188.87
 def stock_price(symbol: str = "AAPL") -> str:
     """
     >>> stock_price("EEEE")
-    '- '
+    'No <fin-streamer> tag with the specified data-testid attribute found.'
     >>> isinstance(float(stock_price("GOOG")),float)
     True
     """