Use paste

Author: radarhere

Tests/test_image_resample.py

@@ -632,22 +632,20 @@ def test_skip_vertical(self, flt: Image.Resampling) -> None:
 class TestCoreResample16bpc:
     # Lanczos weighting during downsampling can push accumulated float sums
     @pytest.mark.parametrize(
-        "width_range",
+        "x",
         (
             # below 0. These must be clamped to 0, not corrupted byte-by-byte.
-            (0, 50),  # Left half = 65535, right half = 0
+            0,  # Left half = 65535, right half = 0
             # above 65535. These must be clamped to 65535, not corrupted byte-by-byte.
-            (50, 100),  # # Left half = 0, right half = 65535
+            50,  # # Left half = 0, right half = 65535
         ),
     )
-    def test_resampling_clamp_overflow(self, width_range: tuple[int, int]) -> None:
+    def test_resampling_clamp_overflow(self, x: int) -> None:
         ims = {}
         width, height = 100, 10
         for mode in ("I;16", "F"):
             im = Image.new(mode, (width, height))
-            for y in range(height):
-                for x in range(*width_range):
-                    im.putpixel((x, y), 65535)
+            im.paste(65535, (x, 0, x + width // 2, height))
 
             # 5x downsampling with Lanczos
             # creates ~8.7% overshoot or undershoot at the step edge