<!DOCTYPE html>
<style>
.transition { 
    height: calc(100% - 10px); 
    -webkit-transition: height 50ms; 
}
.flim + .sibling { 
}
</style>

<body>
    This test checks class changes affecting sibling selectors happening during transitions over calculated lengths.
    The test passes if it does not crash.
</body>

<script>
    if (window.testRunner) {
        testRunner.dumpAsText();        
        testRunner.waitUntilDone(); 
    }

    div = document.createElement('div');
    div.setAttribute('class', 'sibling');
    document.body.appendChild(div);

    th = document.createElement('th'); // td, tr also cause test to fail
    th.setAttribute('class', 'transition');
    document.body.appendChild(th);

    function boom() {
        div.setAttribute('class', 'stix'); 
        if (window.testRunner) 
            testRunner.notifyDone();
    }
    setTimeout(boom, 1);
</script>