This tests that option-tab moves you from a text field to a link, but plain old tab does not.

Note: Option is the Mac name for what other platforms call Alt.

 link  link
SUCCESS: Option-tab did tab to the link (textField).
SUCCESS: Plain old tab did not tab to the link (textField).
SUCCESS: Option-tab did tab to the link (searchField).
SUCCESS: Plain old tab did not tab to the link (searchField).