test: test cases for catching exeptions

tests/test_tutorial/test_catching_exeptions.py

@@ -0,0 +1,24 @@
+from src.tutorial.testing.practice.catching_exeptions import double_integers
+import pytest
+
+
+@pytest.mark.parametrize(
+    ("input", "expected"),
+    [
+        ([1, 2, 3], [2, 4, 6]),
+        ([5], [10]),
+        ([100, 900, -2], [200, 1800, -4]),
+    ],
+)
+def test_double_integers(input, expected):
+    assert double_integers(input) == expected
+
+
+def test_argument_is_list():
+    with pytest.raises(TypeError, match="data must be a list"):
+        double_integers(4)
+
+
+def test_list_with_integers_only():
+    with pytest.raises(TypeError, match="data may contain only integers"):
+        double_integers([4, 3, 2, "str"])