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- This WPT test may be referenced by the following Test IDs:
- /css/css-multicol/extremely-tall-multicol-with-extremely-tall-child-crash.html - WPT Dashboard Interop Dashboard
<!DOCTYPE html>
<title>CSS Multi-column Layout Test: extremely tall multicolumn container with extremely tall inline-block inside</title>
<link rel="author" title="Morten Stenshorne" href="mstensho@chromium.org">
<link rel="help" href="https://www.w3.org/TR/css-multicol-1/#the-multi-column-model" title="CSS Multi-column Layout Module Level 1">
<meta name="assert" content="This tests that we get no crash if we put an extremely tall inline-block inside an extremely tall multicol container. Engines typically have some maximum limit for how large values they can represent. If the value is large enough to become 'infinity', the engine should still not crash">
<!-- Explanation for the CSS values specified below: This test was written for
the Chromium Blink engine, which uses a fixed-point 32 bit integer. In this
example, the value will be too large, so it will be clamped to the maximum
value (about 2^25 px). However, there's a a further complication in that
CSS length values in Blink are transported via a 32bit float, so precision
will be a few pixels off. So even if 1234567890px is way more than Blink
can handle, it will be truncated to a bit less than the maximum value
(about 2^25). We want the multicol container to be as tall as it can
possibly get, so we put it inside a 1234567890px tall container, and
specify the height of the child multicol container to be 200% to ensure
this. We also use a percentage to specify the height of the child inside
the multicol container, for the same reason. -->
<div style="height:1234567890px;">
<div style="columns:2; column-fill:auto; height:200%;">
<div style="display:inline-block; height:100%;"></div><br>
hest
</div>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script>
test(() => { }, "No crash or assertion failure.");
</script>