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Fix errors found in Functions #273

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Fix errors found in Functions #273

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22 changes: 22 additions & 0 deletions tutorial/tests/test_functions.py
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Original file line number Diff line number Diff line change
Expand Up @@ -234,6 +234,28 @@ def test_calculate_area(length, width, unit, function_to_test):
assert expected == result, "Incorrect area calculation or formatting"


@pytest.mark.parametrize(
"length,width,unit",
[
(2.0, 3.0, "km"), # Invalid unit
(2.0, 3.0, ""), # Empty unit
(2.0, 3.0, "CM"), # Case sensitive check
(2.0, 3.0, "inches"), # Another invalid unit
],
)
def test_calculate_area_invalid_units(length, width, unit, function_to_test):
"""Test that the function properly handles invalid units."""
validate_area_signature(function_to_test)
result = function_to_test(length, width, unit)
expected = f"Invalid unit: {unit}"
assert isinstance(
result, str
), "Result should be a string like 'Invalid unit: <unit>'"
assert (
result == expected
), f"Expected '{expected}' for invalid unit '{unit}', got '{result}'"


#
# Exercise 3: summing anything
#
Expand Down