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<!DOCTYPE HTML>
<title>test behaviour with lone surrogates</title>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script>
  test(() => assert_true(true), "passing test with lone surrogate \uD800 in name");
  test(() => assert_true(false), "failing test with lone surrogate \uD800 in name");
  test(() => assert_true(true, "lone \uD800 surrogate"), "passing test with lone surrogate in assert");
  test(() => assert_true(false, "lone \uD800 surrogate"), "failing test with lone surrogate in assert");
</script>