chromium/content/test/data/accessibility/mac/attributes/ax-required.html

<!--
@SCRIPT:
  input.accessibilityAttributeNames.has(AXRequired)
  input.accessibilityAttributeValue(AXRequired)
  input_required.accessibilityAttributeNames.has(AXRequired)
  input_required.accessibilityAttributeValue(AXRequired)
  not_applicable.accessibilityAttributeNames.has(AXRequired)
  not_applicable.accessibilityAttributeValue(AXRequired)
-->
<!DOCTYPE html>
<input id="input">
<input id="input_required" required>
<div id="not_applicable" required>