menbar_menubar-navigator.js (line 500) has a test for the SPACE key and it was failing even though it worked with manual testing on the example. So I added a couple lines of code in menubar-editor.js to detect event.keyCode === 32 and if this is true change event.key to equal (see line 524). The test script now passed for all tests including the SPACE key test. Seems to me a bug with Selenium, but maybe it is something I am doing.

Test Files with "failing" tests due to the SPACE key issue:

• /test/tests/combobox_datepicker.js
• /test/tests/dialog-modal-datepicker.js
• /test/tests/menubar_menubar-navigation.js
• /test/tests/menubar_menubar-editor.js