<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<script src="../resources/runner.js"></script>
</head>
<body>
<div id="target" style="width: 300px; display: none; font: 42px 'system-ui', '-apple-system';" lang="zh-CN"></div>
<script>
var target = document.getElementById("target");
var style = target.style;

var s = "";
var length = 10000;
var startCode = 0x4E00;
for (var i = 0; i < length; ++i) {
    s = s + String.fromCharCode(i + startCode);
}


function test() {
    if (window.internals)
        window.internals.invalidateFontCache();

    style.display = "block";
    target.offsetLeft;
    target.textContent = s;
    target.offsetLeft;
    target.textContent = "";
    style.display = "none";
}

PerfTestRunner.measureRunsPerSecond({ run: test });
</script>
</body>
</html>