css/css-flexbox/flex-shrink-large-value-crash.html

<!DOCTYPE html>
<title>CSS Flexbox: large flex-shrink value</title>
<link rel="help" href="https://drafts.csswg.org/css-flexbox/#scaled-flex-shrink-factor">
<link rel="help" href="https://crbug.com/543614">
<meta name="assert" content="This test ensures that large flex-shrink value does crash due to the lost of precision.">
<style>
.flex {
    display: inline-flex;
    width: 40px;
    height: 40px;
}

.fractional {
    height: 50px;
    width: 50.5px;
    min-width: 50.5px;
}

.high-shrink {
    flex-shrink: 130000000000000;
    height: 40px;
    width: 40px;
    min-width: 40px;
}
</style>

<div class="flex">
    <div class="fractional"></div>
    <div class="high-shrink"></div>
</div>

<p>The high flex shrink factor can lead to loss of precision as we calculate the
<a href="https://drafts.csswg.org/css-flexbox/#scaled-flex-shrink-factor">sum of
scaled flex shrink factors</a> as required by the spec, and as we later subtract
the scaled flex factors for frozen violations, we can get to a negative value
due to that lost precision.</p>