LayoutTests/fast/flexbox/line-clamp-empty-flex-item-assert.html

<style>
.line_clamp{
  -webkit-box-orient: vertical;
  display: -webkit-box;
  -webkit-line-clamp: 1;
}
</style>
PASS if no assert.
<div class=line_clamp><div></div></div>
<script>
if (window.testRunner)
  testRunner.dumpAsText();
</script>