Checking Web Inspector protocol (specifically mouseEventNodeId) for the Accessibility Node Inspector.

Total elements to be tested: 21.

<div>DOM2 mouseup on parent div.</div>
    mouseEventNodeId: ancestor element

<div>DOM2 mousedown on parent div.</div>
    mouseEventNodeId: ancestor element

<div>DOM2 click on parent div.</div>
    mouseEventNodeId: ancestor element

<div id="dom2mouseup">mouseup</div>
    mouseEventNodeId: self

<div id="dom2mousedown">mousedown</div>
    mouseEventNodeId: self

<div id="dom2click">click</div>
    mouseEventNodeId: self

<div>DOM1 mouseup on parent div</div>
    mouseEventNodeId: ancestor element

<div>DOM1 mousedown on parent div.</div>
    mouseEventNodeId: ancestor element

<div>DOM1 click on parent div.</div>
    mouseEventNodeId: ancestor element

<div id="dom1mouseup">mouseup</div>
    mouseEventNodeId: self

<div id="dom1mousedown">mousedown</div>
    mouseEventNodeId: self

<div id="dom1click">click</div>
    mouseEventNodeId: self

<span role="img">DOM1 inline click on parent span.</span>
    mouseEventNodeId: ancestor element

<div>DOM1 inline click on parent div with tabindex="0".</div>
    mouseEventNodeId: ancestor element

<div>DOM1 inline click on parent div with role="button".</div>
    mouseEventNodeId: ancestor element

<div>DOM1 inline click on parent div.</div>
    mouseEventNodeId: ancestor element

<span onclick="void(0);">click</span>
    mouseEventNodeId: self

<div tabindex="0" onclick="void(0);">click</div>
    mouseEventNodeId: self

<div role="button" onclick="void(0);">click</div>
    mouseEventNodeId: self

<div onclick="void(0);">click</div>
    mouseEventNodeId: self

<div>Click handler on body delegate.</div>
    mouseEventNodeId: body element