1 files changed, 43 insertions, 0 deletions
diff --git a/testing/web-platform/tests/html/canvas/offscreen/fill-and-stroke-styles/2d.pattern.basic.zerocanvas.html b/testing/web-platform/tests/html/canvas/offscreen/fill-and-stroke-styles/2d.pattern.basic.zerocanvas.html
new file mode 100644
index 0000000000..7100c8313f
--- /dev/null
+++ b/testing/web-platform/tests/html/canvas/offscreen/fill-and-stroke-styles/2d.pattern.basic.zerocanvas.html
@@ -0,0 +1,43 @@
+<!DOCTYPE html>
+<!-- DO NOT EDIT! This test has been generated by /html/canvas/tools/gentest.py. -->
+<title>OffscreenCanvas test: 2d.pattern.basic.zerocanvas</title>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="/html/canvas/resources/canvas-tests.js"></script>
+
+<h1>2d.pattern.basic.zerocanvas</h1>
+<p class="desc"></p>
+
+
+<script>
+var t = async_test("");
+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');
+
+  canvas.width = 0;
+  canvas.height = 10;
+  _assertSame(canvas.width, 0, "canvas.width", "0");
+  _assertSame(canvas.height, 10, "canvas.height", "10");
+  assert_throws_dom("INVALID_STATE_ERR", function() { ctx.createPattern(canvas, 'repeat'); });
+
+  canvas.width = 10;
+  canvas.height = 0;
+  _assertSame(canvas.width, 10, "canvas.width", "10");
+  _assertSame(canvas.height, 0, "canvas.height", "0");
+  assert_throws_dom("INVALID_STATE_ERR", function() { ctx.createPattern(canvas, 'repeat'); });
+
+  canvas.width = 0;
+  canvas.height = 0;
+  _assertSame(canvas.width, 0, "canvas.width", "0");
+  _assertSame(canvas.height, 0, "canvas.height", "0");
+  assert_throws_dom("INVALID_STATE_ERR", function() { ctx.createPattern(canvas, 'repeat'); });
+  t.done();
+
+});
+</script>