Allows click on the Facebook "OK" button once the SDK opens safari taken from https://groups.google.com/d/msg/frank-discuss/V4F6ZZB5aCk/goA3I535a8IJ

facebook_login.rb

def click_fb_okay_button
    %x{osascript<<APPLESCRIPT
        tell application "iPhone Simulator"
            activate
        end tell

        tell application "System Events"
            tell process "iPhone Simulator"
                set the position of the first window to {1, 1, 1, 1}
                delay 1
                click at {300, 162}
            end tell
        end tell
    APPLESCRIPT}
end

Then /^I ok Facebook$/ do
  click_fb_okay_button()
end