1 files changed, 30 insertions, 0 deletions
diff --git a/testing/web-platform/tests/html/canvas/offscreen/fill-and-stroke-styles/2d.gradient.object.return.worker.js b/testing/web-platform/tests/html/canvas/offscreen/fill-and-stroke-styles/2d.gradient.object.return.worker.js
new file mode 100644
index 0000000000..a279eed4f3
--- /dev/null
+++ b/testing/web-platform/tests/html/canvas/offscreen/fill-and-stroke-styles/2d.gradient.object.return.worker.js
@@ -0,0 +1,30 @@
+// DO NOT EDIT! This test has been generated by /html/canvas/tools/gentest.py.
+// OffscreenCanvas test in a worker:2d.gradient.object.return
+// Description:createLinearGradient() and createRadialGradient() returns objects implementing CanvasGradient
+// Note:
+
+importScripts("/resources/testharness.js");
+importScripts("/html/canvas/resources/canvas-tests.js");
+
+var t = async_test("createLinearGradient() and createRadialGradient() returns objects implementing CanvasGradient");
+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');
+
+  self.CanvasGradient.prototype.thisImplementsCanvasGradient = true;
+
+  var g1 = ctx.createLinearGradient(0, 0, 100, 0);
+  _assertDifferent(g1.addColorStop, undefined, "g1.addColorStop", "undefined");
+  _assertSame(g1.thisImplementsCanvasGradient, true, "g1.thisImplementsCanvasGradient", "true");
+
+  var g2 = ctx.createRadialGradient(0, 0, 10, 0, 0, 20);
+  _assertDifferent(g2.addColorStop, undefined, "g2.addColorStop", "undefined");
+  _assertSame(g2.thisImplementsCanvasGradient, true, "g2.thisImplementsCanvasGradient", "true");
+  t.done();
+});
+done();