1 files changed, 47 insertions, 0 deletions
diff --git a/testing/web-platform/tests/webmessaging/broadcastchannel/service-worker.https.html b/testing/web-platform/tests/webmessaging/broadcastchannel/service-worker.https.html
new file mode 100644
index 0000000000..d605434ae1
--- /dev/null
+++ b/testing/web-platform/tests/webmessaging/broadcastchannel/service-worker.https.html
@@ -0,0 +1,47 @@
+<!DOCTYPE html>
+<meta charset=utf-8>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script>
+
+const SERVICE_WORKER_TEST_CHANNEL_NAME = 'service worker';
+const events = [];
+const c1 = new BroadcastChannel(SERVICE_WORKER_TEST_CHANNEL_NAME);
+const c2 = new BroadcastChannel(SERVICE_WORKER_TEST_CHANNEL_NAME);
+c1.onmessage = e => events.push(e);
+c2.onmessage = e => events.push(e);
+
+function testCompletion(t) {
+  return new Promise((resolve) => {
+    c2.addEventListener("message", t.step_func(e => {
+      if (e.data == 'from worker') {
+        c2.postMessage('from c2');
+      } else if (e.data == 'done') {
+        assert_equals(events.length, 5);
+        assert_equals(events[0].data, 'from worker');
+        assert_equals(events[0].target, c1);
+        assert_equals(events[1].data, 'from worker');
+        assert_equals(events[1].target, c2);
+        assert_equals(events[2].data, 'from c2');
+        assert_equals(events[3].data, 'done');
+        assert_equals(events[3].target, c1);
+        assert_equals(events[4].data, 'done');
+        assert_equals(events[4].target, c2);
+        resolve();
+      }
+    }));
+  });
+}
+
+promise_test(async t => {
+
+    const testResults = testCompletion(t);
+    const SCRIPT = "resources/service-worker.js";
+    const SCOPE = "/webmessaging/broadcastchannel/resources/not-used/";
+
+    const reg = await navigator.serviceWorker.register(SCRIPT, {'scope': SCOPE});
+    t.add_cleanup(() => reg.unregister());
+
+    return testResults;
+  }, 'BroadcastChannel works in service workers');
+</script>