1 files changed, 29 insertions, 0 deletions
diff --git a/testing/web-platform/tests/websockets/keeping-connection-open/001.html b/testing/web-platform/tests/websockets/keeping-connection-open/001.html
new file mode 100644
index 0000000000..ab5bd1a540
--- /dev/null
+++ b/testing/web-platform/tests/websockets/keeping-connection-open/001.html
@@ -0,0 +1,29 @@
+<!doctype html>
+<title>WebSockets: 20s inactivity after handshake</title>
+<meta name=timeout content=long>
+<p>Note: This test takes 20 seconds to run.</p>
+<script src=/resources/testharness.js></script>
+<script src=/resources/testharnessreport.js></script>
+<script src=../constants.sub.js></script>
+<meta name="variant" content="?default">
+<meta name="variant" content="?wss">
+<meta name="variant" content="?wpt_flags=h2">
+<div id=log></div>
+<script>
+async_test(function(t) {
+  var ws = new WebSocket(SCHEME_DOMAIN_PORT+'/echo');
+  ws.onclose = ws.onerror = ws.onmessage = t.unreached_func();
+  ws.onopen = t.step_func(function(e) {
+    t.step_timeout(function() {
+      ws.send('test');
+      ws.onmessage = t.step_func(function(e) {
+        assert_equals(e.data, 'test');
+        ws.onclose = t.step_func(function(e) {
+          t.step_timeout(() => t.done(), 50);
+        });
+        ws.close();
+      });
+    }, 20000);
+  })
+});
+</script>