chromium/third_party/blink/web_tests/external/wpt/css/cssom-view/cssom-getClientRects-002.html

<!DOCTYPE html>
<html>
 <head>
  <title>CSSOM View - GetClientRects().length is the same regardless source new lines</title>
  <link rel="help" href="https://drafts.csswg.org/cssom-view-1/#dom-element-getclientrects">
  <script src="/resources/testharness.js"></script>
  <script src="/resources/testharnessreport.js"></script>
 </head>
 <body>
  <span id="single">
   test test
  </span><br/>
  <span id="multiple">
   test
   test
  </span>
  <script>
    test(function () {
      const count = document.querySelector("#single").getClientRects().length;
      const count2 = document.querySelector("#multiple").getClientRects().length;
      assert_equals(count, 1, "count");
      assert_equals(count2, 1, "count2");
    });
  </script>
 </body>
</html>