1 files changed, 30 insertions, 0 deletions
diff --git a/testing/web-platform/tests/service-workers/service-worker/extendable-event-async-waituntil.https.html b/testing/web-platform/tests/service-workers/service-worker/extendable-event-async-waituntil.https.html
new file mode 100644
index 000000000..c06bf84ab
--- /dev/null
+++ b/testing/web-platform/tests/service-workers/service-worker/extendable-event-async-waituntil.https.html
@@ -0,0 +1,30 @@
+<!DOCTYPE html>
+<script src="/resources/testharness.js"></script>
+<script src="resources/testharness-helpers.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="resources/test-helpers.sub.js"></script>
+<script>
+promise_test(function(t) {
+    var script = 'resources/extendable-event-async-waituntil.js';
+    var scope = 'resources/async-waituntil';
+    var worker;
+
+    return service_worker_unregister_and_register(t, script, scope)
+      .then(function(registration) {
+          worker = registration.installing;
+          return wait_for_state(t, worker, 'activated');
+        })
+      .then(function() {
+          var channel = new MessageChannel();
+          var saw_message = new Promise(function(resolve) {
+              channel.port1.onmessage = function(e) { resolve(e.data); }
+            });
+          worker.postMessage({port: channel.port2}, [channel.port2]);
+          return saw_message;
+        })
+      .then(function(message) {
+          assert_equals(message, 'PASS');
+          return service_worker_unregister_and_done(t, scope);
+        })
+  }, 'Calling waitUntil asynchronously throws an exception');
+</script>