1 files changed, 31 insertions, 0 deletions
diff --git a/testing/web-platform/tests/html/canvas/offscreen/canvas-host/2d.canvas.host.size.large.html b/testing/web-platform/tests/html/canvas/offscreen/canvas-host/2d.canvas.host.size.large.html
new file mode 100644
index 0000000000..b220f8f2ed
--- /dev/null
+++ b/testing/web-platform/tests/html/canvas/offscreen/canvas-host/2d.canvas.host.size.large.html
@@ -0,0 +1,31 @@
+<!DOCTYPE html>
+<!-- DO NOT EDIT! This test has been generated by /html/canvas/tools/gentest.py. -->
+<title>OffscreenCanvas test: 2d.canvas.host.size.large</title>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="/html/canvas/resources/canvas-tests.js"></script>
+
+<h1>2d.canvas.host.size.large</h1>
+<p class="desc"></p>
+
+<p class="notes">Not sure how reasonable this is, but the spec doesn't say there's an upper limit on the size.
+<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');
+
+  var n = 2147483647; // 2^31 - 1, which should be supported by any sensible definition of "long"
+  canvas.width = n;
+  canvas.height = n;
+  _assertSame(canvas.width, n, "canvas.width", "n");
+  _assertSame(canvas.height, n, "canvas.height", "n");
+  t.done();
+
+});
+</script>