tests for entry and coordinate area models

test for the entry and coordinate_area models.  they are far from dry. might use contexts but I don't yet see their benefit for these. recommendations appreciated!

The files I made are "entry_spec" and "coordinate_area_spec".  The others were generated by other things.
consider keeping this how you had it, but forcing it to return true or false. This can be accomplished with !!, so you can write, !!latitude && !!longitude