chromium/third_party/blink/renderer/core/testing/data/composited_selection_bounds_large_selection_noscroll.html

<style>
    @font-face {
        font-family: ahem;
        src: url(Ahem.ttf);
    }
    * {
        font-family: ahem;
        margin: 0;
        padding: 0;
    }
    div.top {

    }
    div.bottom {
      position:absolute;
      top: 10000px;

    }
</style>
<div class="top">top text</div>
<div class="bottom">bottom text</div>

<script>
    document.getSelection().selectAllChildren(document.documentElement);

    var expectEditable = false;
    var expectEmptyTextFormControl = false;
    var yBottomEpsilon = 2;
    var startHidden = false;
    var endHidden = true;
    window.expectedResult = [document, 0, 0, 0, 12, null, 0, 0, 0, 0, expectEditable, expectEmptyTextFormControl, yBottomEpsilon, startHidden, endHidden];
</script>