1 files changed, 30 insertions, 0 deletions
diff --git a/testing/web-platform/tests/websockets/Send-unpaired-surrogates.any.js b/testing/web-platform/tests/websockets/Send-unpaired-surrogates.any.js
new file mode 100644
index 0000000000..1cb5d0ac9c
--- /dev/null
+++ b/testing/web-platform/tests/websockets/Send-unpaired-surrogates.any.js
@@ -0,0 +1,30 @@
+// META: script=constants.sub.js
+// META: variant=
+// META: variant=?wss
+// META: variant=?wpt_flags=h2
+
+var test = async_test("Send unpaired surrogates on a WebSocket - Connection should be closed");
+
+var data = "\uD807";
+var replacementChar = "\uFFFD";
+var wsocket = CreateWebSocket(false, false);
+var isOpenCalled = false;
+var isMessageCalled = false;
+
+wsocket.addEventListener('open', test.step_func(function(evt) {
+  wsocket.send(data);
+  isOpenCalled = true;
+}), true);
+
+wsocket.addEventListener('message', test.step_func(function(evt) {
+  isMessageCalled = true;
+  assert_equals(evt.data, replacementChar);
+  wsocket.close();
+}), true);
+
+wsocket.addEventListener('close', test.step_func(function(evt) {
+  assert_true(isOpenCalled, "WebSocket connection should be open");
+  assert_true(isMessageCalled, "message should be received");
+  assert_equals(evt.wasClean, true, "wasClean should be true");
+  test.done();
+}), true);