Noob help - creating a tests for a plugin

Rails
1

Hi,

I have just created my first ever plugin and would like to write some
test’s for it, any suggestions on where to start would be great.

I have this code in my site_test.rb file

require ‘test/unit’
require File.dirname(FILE) + ‘/…/lib/site’

class SiteTest < Test::Unit::TestCase
include Site

def test_getRegion

end

end

which I belive relates to this method

module Site
def getRegion()
oData = Data.new(@request.env)
return oData.regionName
end
end

I was thinking that it may be possible to test that somthing is always
returned, how can this be done?

Thanks,
john