def test_darken_pixels_calls_library():
with mock.patch("img_utils.img_utils._darken_pixels") as mock_fun:
img_utils.darken_pixels("foo", "bar", 0, 1)
mock_fun.assert_called_with("foo", "bar", 0, 1)
def test_darken_pixels_file_not_found():
with pytest.raises(exceptions.FileNotFoundException):
darken_pixels("/non/existant/file.jpg", "/out.jpg", 0, 0)
def test_darken_pixels_invalid_file_type():
with pytest.raises(exceptions.UnsupportedFormatException):
darken_pixels("./tests/assets/bin", "/out.jpg", 0, 0)
def test_darken_pixels_invalid_u8_arguments():
out = tempfile.NamedTemporaryFile(suffix=".jpg").name
darken_pixels("./tests/assets/test-small.jpg", out, -10, 25)
def rust_darken(in_file: str, out_file: str):
img_utils.darken_pixels(in_file, out_file, AMOUNT, CUTOFF)