1 files changed, 100 insertions, 0 deletions
diff --git a/testing/web-platform/tests/html/canvas/offscreen/filters/2d.filter.layers.colorMatrix.worker.js b/testing/web-platform/tests/html/canvas/offscreen/filters/2d.filter.layers.colorMatrix.worker.js
new file mode 100644
index 0000000000..12cdff3868
--- /dev/null
+++ b/testing/web-platform/tests/html/canvas/offscreen/filters/2d.filter.layers.colorMatrix.worker.js
@@ -0,0 +1,100 @@
+// DO NOT EDIT! This test has been generated by /html/canvas/tools/gentest.py.
+// OffscreenCanvas test in a worker:2d.filter.layers.colorMatrix
+// Description:Test the functionality of ColorMatrix filters
+// Note:
+
+importScripts("/resources/testharness.js");
+importScripts("/html/canvas/resources/canvas-tests.js");
+
+var t = async_test("Test the functionality of ColorMatrix filters");
+var t_pass = t.done.bind(t);
+var t_fail = t.step_func(function(reason) {
+    throw reason;
+});
+t.step(function() {
+
+  var canvas = new OffscreenCanvas(100, 50);
+  var ctx = canvas.getContext('2d');
+
+  assert_throws_js(TypeError, function() { ctx.beginLayer({filter:
+    {name: 'colorMatrix', values: undefined}}); });
+
+  assert_throws_js(TypeError, function() { ctx.beginLayer({filter:
+    {name: 'colorMatrix', values: 'foo'}}); });
+
+  assert_throws_js(TypeError, function() { ctx.beginLayer({filter:
+    {name: 'colorMatrix', values: null}}); });
+
+  assert_throws_js(TypeError, function() { ctx.beginLayer({filter:
+    {name: 'colorMatrix', values: [1, 2, 3]}}); });
+
+  assert_throws_js(TypeError, function() { ctx.beginLayer({filter:
+    {name: 'colorMatrix',
+     values: [1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18,
+              19, 'a']}}); });
+
+  assert_throws_js(TypeError, function() { ctx.beginLayer({filter:
+    {name: 'colorMatrix',
+     values: [1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18,
+              19, Infinity]}}); });
+
+  ctx.fillStyle = '#f00';
+  ctx.beginLayer({filter:
+    {name: 'colorMatrix', type: 'hueRotate', values: 0}});
+  ctx.fillRect(0, 0, 100, 50);
+  ctx.endLayer();
+  _assertPixelApprox(canvas, 10,10, 255,0,0,255, 2);
+
+  ctx.beginLayer({filter:
+    {name: 'colorMatrix', type: 'hueRotate', values: 90}});
+  ctx.fillRect(0, 0, 100, 50);
+  ctx.endLayer();
+  _assertPixelApprox(canvas, 10,10, 0,91,0,255, 2);
+
+  ctx.beginLayer({filter:
+    {name: 'colorMatrix', type: 'hueRotate', values: 180}});
+  ctx.fillRect(0, 0, 100, 50);
+  ctx.endLayer();
+  _assertPixelApprox(canvas, 10,10, 0,109,109,255, 2);
+
+  ctx.beginLayer({filter:
+    {name: 'colorMatrix', type: 'hueRotate', values: 270}});
+  ctx.fillRect(0, 0, 100, 50);
+  ctx.endLayer();
+  _assertPixelApprox(canvas, 10,10, 109,18,255,255, 2);
+
+  ctx.beginLayer({filter:
+    {name: 'colorMatrix', type: 'saturate', values: 0.5}});
+  ctx.fillRect(0, 0, 100, 50);
+  ctx.endLayer();
+  _assertPixelApprox(canvas, 10,10, 155,27,27,255, 2);
+
+  ctx.clearRect(0, 0, 100, 50);
+  ctx.beginLayer({filter:
+    {name: 'colorMatrix', type: 'luminanceToAlpha'}});
+  ctx.fillRect(0, 0, 100, 50);
+  ctx.endLayer();
+  _assertPixelApprox(canvas, 10,10, 0,0,0,54, 2);
+
+  ctx.beginLayer({filter:
+    {name: 'colorMatrix', values: [
+      0, 0, 0, 0, 0,
+      1, 1, 1, 1, 0,
+      0, 0, 0, 0, 0,
+      0, 0, 0, 1, 0
+    ]}});
+  ctx.fillRect(0, 0, 50, 25);
+  ctx.fillStyle = '#0f0';
+  ctx.fillRect(50, 0, 50, 25);
+  ctx.fillStyle = '#00f';
+  ctx.fillRect(0, 25, 50, 25);
+  ctx.fillStyle = '#fff';
+  ctx.fillRect(50, 25, 50, 25);
+  ctx.endLayer();
+  _assertPixelApprox(canvas, 10,10, 0,255,0,255, 2);
+  _assertPixelApprox(canvas, 60,10, 0,255,0,255, 2);
+  _assertPixelApprox(canvas, 10,30, 0,255,0,255, 2);
+  _assertPixelApprox(canvas, 60,30, 0,255,0,255, 2);
+  t.done();
+});
+done();