1 files changed, 45 insertions, 0 deletions
diff --git a/testing/web-platform/tests/html/canvas/tools/templates/testharness_offscreen.html b/testing/web-platform/tests/html/canvas/tools/templates/testharness_offscreen.html
new file mode 100644
index 0000000000..8ebbff77a6
--- /dev/null
+++ b/testing/web-platform/tests/html/canvas/tools/templates/testharness_offscreen.html
@@ -0,0 +1,45 @@
+<!DOCTYPE html>
+<!-- DO NOT EDIT! This test has been generated by /html/canvas/tools/gentest.py. -->
+<title>OffscreenCanvas test: {{ name }}</title>
+{% if timeout %}<meta name="timeout" content="{{ timeout }}">{% endif %}
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="/html/canvas/resources/canvas-tests.js"></script>
+
+<h1>{{ name }}</h1>
+<p class="desc">{{ desc }}</p>
+
+{% if notes %}<p class="notes">{{ notes }}{% endif +%}
+<script>
+
+{#- Promise vs. async test header: +#}
+{% if test_type == 'promise' %}
+promise_test(async t => {
+{% else %}
+var t = async_test("{{ desc | double_quote_escape }}");
+var t_pass = t.done.bind(t);
+var t_fail = t.step_func(function(reason) {
+    throw reason;
+});
+t.step(function() {
+{% endif %}
+
+{# Test body: #}
+  var canvas = new OffscreenCanvas({{ size[0] }}, {{ size[1] }});
+  var ctx = canvas.getContext('2d'{% if attributes %}, {{ attributes }}{% endif %});
+
+  {{ code | trim | indent(2)}}
+
+{#- Promise vs. async test footer: +#}
+{% if test_type == 'promise' %}
+
+}, "{{ desc }}");
+{% else %}
+  t.done();
+
+});
+{% endif %}
+</script>
+{% for svgimage in svgimages %}
+<svg><image xlink:href="/images/{{ svgimage }}" id="{{ svgimage }}" class="resource"></svg>
+{% endfor %}