Method test_quad

Tests/test_image_transform.py:72–90

(self)

        assert_image_similar(transformed, scaled, 23)

    def test_quad(self) -> None:
        # one simple quad transform, equivalent to scale & crop upper left quad
        im = hopper("RGB")
        w, h = im.size
        transformed = im.transform(
            im.size,
            Image.Transform.QUAD,
            (0, 0, 0, h // 2, w // 2, h // 2, w // 2, 0),  # ul -> ccw around quad
            Image.Resampling.BILINEAR,
        )

        scaled = im.transform(
            (w, h),
            Image.Transform.AFFINE,
            (0.5, 0, 0, 0, 0.5, 0),
            Image.Resampling.BILINEAR,
        )

        assert_image_equal(transformed, scaled)

    @pytest.mark.parametrize(
        "mode, expected_pixel",