Import wpt@5915964199b07226bf6d8fbb177a63b1f272907a

third_party/WebKit/LayoutTests/imported/wpt/offscreen-canvas/fill-and-stroke-styles/2d.gradient.object.invalidoffset.worker.js

+// DO NOT EDIT! This test has been generated by tools/gentest.py.
+// OffscreenCanvas test in a worker:2d.gradient.object.invalidoffset
+// Description:
+// Note:
+
+importScripts("/resources/testharness.js");
+importScripts("/common/canvas-tests.js");
+
+var t = async_test("");
+t.step(function() {
+
+var offscreenCanvas = new OffscreenCanvas(100, 50);
+var ctx = offscreenCanvas.getContext('2d');
+
+var g = ctx.createLinearGradient(0, 0, 100, 0);
+assert_throws("INDEX_SIZE_ERR", function() { g.addColorStop(-1, '#000'); });
+assert_throws("INDEX_SIZE_ERR", function() { g.addColorStop(2, '#000'); });
+assert_throws(new TypeError(), function() { g.addColorStop(Infinity, '#000'); });
+assert_throws(new TypeError(), function() { g.addColorStop(-Infinity, '#000'); });
+assert_throws(new TypeError(), function() { g.addColorStop(NaN, '#000'); });
+
+t.done();
+
+});
+done();