1 files changed, 22 insertions, 0 deletions
diff --git a/testing/web-platform/tests/websockets/Close-reason-unpaired-surrogates.any.js b/testing/web-platform/tests/websockets/Close-reason-unpaired-surrogates.any.js
new file mode 100644
index 0000000000..e5a71d2735
--- /dev/null
+++ b/testing/web-platform/tests/websockets/Close-reason-unpaired-surrogates.any.js
@@ -0,0 +1,22 @@
+// META: script=constants.sub.js
+// META: variant=?default
+// META: variant=?wss
+// META: variant=?wpt_flags=h2
+
+var test = async_test("Create WebSocket - Close the Connection - close(reason with unpaired surrogates) - connection should get closed");
+
+var wsocket = CreateWebSocket(false, false);
+var isOpenCalled = false;
+var replacementChar = "\uFFFD";
+var reason = "\uD807";
+
+wsocket.addEventListener('open', test.step_func(function(evt) {
+  wsocket.close(1000, reason);
+  isOpenCalled = true;
+}), true);
+
+wsocket.addEventListener('close', test.step_func(function(evt) {
+  assert_true(isOpenCalled, "WebSocket connection should be opened");
+  assert_equals(evt.reason, replacementChar, "reason replaced with replacement character");
+  test.done();
+}), true);