...
- The input file doesn't exist.
- Bad input file extension.
- Empty input file.
- Bad value type (e.g. base and height can't be strings).
- A negative value of base or/and height.
- Call function without arguments.
- Base or height value bigger than 100 (in get_triangle_area function base and height values should be in the range from 1 to 100).
The next step is writing the tests.
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All rules of testing exceptions are explained in 3. Testing exceptions chapter. |
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def test_get_triangle_area(): # PROPER RESULT TEST assert get_triangle_area("./../resources/base.txt", "./../resources/height.txt") == 25 # BAD FILENAME with pytest.raises(FileNotFoundError): get_triangle_area("./../resources/flower.txt", "./../resources/height.txt") # EMPTY FILE with pytest.raises(ValueError): get_triangle_area("./../resources/empty.txt", "./../resources/height.txt") # BAD VALUE TYPE with pytest.raises(ValueError): get_triangle_area("./../resources/string_base.txt", "./../resources/height.txt") # NEGATIVE VALUE with pytest.raises(ValueError): get_triangle_area("./../resources/negative_base.txt", "./../resources/height.txt") # BAD FILE EXTENSION with pytest.raises(FileNotFoundError): get_triangle_area("./../resources/base.txt", "./../resources/height.csv") # WITHOUT ARGUMENTS with pytest.raises(TypeError): get_triangle_area() # BASE EQUAL 1000 with pytest.raises(ValueError): get_triangle_area("./../resources/mega_base.txt", "./../resources/height.txt") |