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<meta charset="utf-8">
<script src="../resources/js-test-pre.js"></script>
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<script>

description("Test that a 16-bit AtomicString containing only 8-bit characters doesn't confuse the JIT into thinking it's an 8-bit AtomicString.");

o = {};

stringWithEmoji = "zest😐";
var test16bit = stringWithEmoji.substring(0, 4);

o[test16bit] = "this makes it an AtomicString";

globalRope = "";

function jittable(a, b) {
    for (var i = 0; i < 5000; ++i) {
        poisonedRope = a + b;
        o[poisonedRope] = 1;
        globalRope = "foo." + poisonedRope;
    }
}

jittable("ze", "st");

shouldBe("globalRope", "'foo.zest'");

</script>
<script src="../resources/js-test-post.js"></script>
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