css/css-grid/grid-model/compute-intrinsic-widths-scrollbar-001.html

<!DOCTYPE html>
<title>CSS Grid: width of grid container with scrollbar.</title>
<link rel="author" title="Manuel Rego Casasnovas" href="mailto:rego@igalia.com">
<link rel="help" href="https://drafts.csswg.org/css-grid-1/#overflow">
<meta name="assert" content="This test ensures that a grid container scrollbar is computed properly during intrinsic width calculation."/>

<link href="/css/support/grid.css" rel="stylesheet"/>
<link href="/css/support/width-keyword-classes.css" rel="stylesheet"/>
<style>
  .grid {
    overflow-y: scroll;
    grid-template-columns: repeat(4, 50px);
  }
</style>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="/resources/check-layout-th.js"></script>
<body onload="checkLayout('.grid')">
  <div class="grid min-content" data-expected-client-width="200">
    item
  </div>
  <div class="grid max-content" data-expected-client-width="200">
    item
  </div>
</body>