touch_helpers.rb in calabash-android-0.8.1

- old
+ new

@@ -27,9 +27,12 @@
         if query_result?(query_string)
           center_x, center_y = find_coordinate(query_string, options)
 
           perform_action("touch_coordinate", center_x, center_y)
         else
+          if query_string.nil? && (options.nil? || options.empty?)
+            raise "Can't touch nil"
+          end
           execute_gesture(Gesture.with_parameters(Gesture.tap(options), {query_string: query_string}.merge(options)))
         end
       end
 
       def double_tap(query_string, options={})
\ No newline at end of file