Steps to Reproduce

run

<spreadsheet id="spreadsheet" vflex="1" hflex="1" src="/book/blank.xlsx"
                     showToolbar="true" showSheetbar="true" showFormulabar="true" showContextMenu="true"/>

Current Result

you can see the dom class name
<a class="dropdown-item k-icon-borderAll">All Borders</a>

Expected Result

should be k-icon-border-all

Debug Information

should consider ui test selector