chromium/third_party/blink/web_tests/external/wpt/shadow-dom/focus-navigation/reading-flow/tentative/flex-visual-order.html

<!DOCTYPE html>
<meta charset="utf-8">
<title>CSS Display: reading-flow with value flex-visual</title>
<link rel="help" href="https://drafts.csswg.org/css-display-4/#reading-flow">
<link rel="author" title="Di Zhang" href="mailto:[email protected]">
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="/resources/testdriver.js"></script>
<script src="/resources/testdriver-vendor.js"></script>
<script src="/resources/testdriver-actions.js"></script>
<script src='../../resources/shadow-dom.js'></script>
<script src="../../resources/focus-utils.js"></script>

<style>
.wrapper {
  display: flex;
  reading-flow: flex-visual;
}
</style>

<div class="test-case" data-expect="A,B,C"
      data-description="Flex items in flexbox should follow flex-visual reading flow">
  <div class="wrapper">
    <button id="A">A</button>
    <button id="B">B</button>
    <button id="C">C</button>
  </div>
</div>

<div class="test-case" data-expect="C1,B1,A1"
      data-description="Flex items in row-reverse flexbox should follow flex-visual reading flow">
  <div class="wrapper" style="flex-direction: row-reverse">
    <button id="A1">A</button>
    <button id="B1">B</button>
    <button id="C1">C</button>
  </div>
</div>

<div class="test-case" data-expect="C2,B2,A2"
      data-description="Flex items in row-reverse rtl flexbox should follow flex-visual reading flow">
  <div class="wrapper" style="flex-direction: row-reverse; direction: rtl">
    <button id="A2">A</button>
    <button id="B2">B</button>
    <button id="C2">C</button>
  </div>
</div>

<div class="test-case" data-expect="C3,B3,A3"
      data-description="Flex items in row-reverse and vertical-lr flexbox should follow flex-visual reading flow">
  <div class="wrapper" style="flex-direction: row-reverse; writing-mode: vertical-lr;">
    <button id="A3">A</button>
    <button id="B3">B</button>
    <button id="C3">C</button>
  </div>
</div>

<script>
runFocusTestCases();
</script>