1 files changed, 37 insertions, 0 deletions
diff --git a/testing/web-platform/tests/html/canvas/element/filters/2d.filter.layers.componentTransfer.linear.html b/testing/web-platform/tests/html/canvas/element/filters/2d.filter.layers.componentTransfer.linear.html
new file mode 100644
index 0000000000..c9e744ebef
--- /dev/null
+++ b/testing/web-platform/tests/html/canvas/element/filters/2d.filter.layers.componentTransfer.linear.html
@@ -0,0 +1,37 @@
+<!DOCTYPE html>
+<!-- DO NOT EDIT! This test has been generated by /html/canvas/tools/gentest.py. -->
+<link rel="match" href="2d.filter.layers.componentTransfer.linear-expected.html">
+<meta name=fuzzy content="maxDifference=0-2; totalPixels=0-500">
+<title>Canvas test: 2d.filter.layers.componentTransfer.linear</title>
+<h1>2d.filter.layers.componentTransfer.linear</h1>
+<p class="desc">Test pixels on CanvasFilter() componentTransfer with linear type</p>
+<canvas id="canvas" width="100" height="100">
+  <p class="fallback">FAIL (fallback content)</p>
+</canvas>
+<script>
+  const canvas = document.getElementById("canvas");
+  const ctx = canvas.getContext('2d');
+
+  const slopes = [0.5, 1.2, -0.2];
+  const intercepts = [0.25, 0, 0.5];
+  ctx.beginLayer({filter: {name: 'componentTransfer',
+      funcR: {type: 'linear', slope: slopes[0], intercept: intercepts[0]},
+      funcG: {type: 'linear', slope: slopes[1], intercept: intercepts[1]},
+      funcB: {type: 'linear', slope: slopes[2], intercept: intercepts[2]},
+  }});
+
+  const inputColors = [
+      [255, 255, 255],
+      [0, 0, 0],
+      [127, 0, 34],
+      [252, 186, 3],
+      [50, 68, 87],
+  ];
+
+  for (let i = 0 ; i < inputColors.length ; ++i) {
+      const color = inputColors[i];
+      ctx.fillStyle = `rgb(${color[0]}, ${color[1]}, ${color[2]})`;
+      ctx.fillRect(i * 10, i * 10, 10, 10);
+  }
+  ctx.endLayer();
+</script>