In RCPTT, how do you verify the state of a SWT.CHECK menu item?

I have an Eclipse based application that has a context menu with items that when clicked on once cause the menu to disappear. If the menu is opened again those items are checked (their style is SWT.CHECK). If clicked on again they are unchecked. In RCPTT there's no way to enter Assertion Mode without the context menu disappearing so I need to write the ECL code manually. So what I'm doing is I click on the item and it generates the following ECL code:

get-menu -path "someCascadeMenuItem/someSelectableLeafItem" | click

Instead of that "click" I need to verify the state of the menu-item. My question is how do I verify if that leaf item is checked or unchecked? I wasn't able to find any command for this.