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chromium/third_party/blink/web_tests/editing/execCommand/queryCommandState-03.html 

<!doctype HTML>
<script src="../../resources/testharness.js"></script>
<script src="../../resources/testharnessreport.js"></script>
<div contenteditable="true">
<img src="../resources/abe.png">
</div>
<script>
test(function() {
    document.getSelection().removeAllRanges();
    var range = document.createRange();
    range.selectNode(document.querySelector('img'));
    document.getSelection().addRange(range);

    assert_equals(document.queryCommandState('bold'), false);
    assert_equals(document.queryCommandState('italic'), false);
    assert_equals(document.queryCommandState('underline'), false);
    assert_equals(document.queryCommandState('strikethrough'), false);
}, 'run queryCommandState() on the selected img element');
</script>