1 files changed, 35 insertions, 0 deletions
diff --git a/testing/web-platform/tests/html/canvas/offscreen/fill-and-stroke-styles/2d.gradient.object.return.html b/testing/web-platform/tests/html/canvas/offscreen/fill-and-stroke-styles/2d.gradient.object.return.html
new file mode 100644
index 0000000000..779b941d20
--- /dev/null
+++ b/testing/web-platform/tests/html/canvas/offscreen/fill-and-stroke-styles/2d.gradient.object.return.html
@@ -0,0 +1,35 @@
+<!DOCTYPE html>
+<!-- DO NOT EDIT! This test has been generated by /html/canvas/tools/gentest.py. -->
+<title>OffscreenCanvas test: 2d.gradient.object.return</title>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="/html/canvas/resources/canvas-tests.js"></script>
+
+<h1>2d.gradient.object.return</h1>
+<p class="desc">createLinearGradient() and createRadialGradient() returns objects implementing CanvasGradient</p>
+
+
+<script>
+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');
+
+  window.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();
+
+});
+</script>