Class constants from modules

I'd like to make a class constant using a module -- I cannot use < because I am extending unit_test. -- Here's the idea:

irb(main):001:0> module One @@constant="constant" end
=> "constant"
irb(main):002:0> module Two
irb(main):003:1> def work
irb(main):004:2> puts(@@constant)
irb(main):005:2> end
irb(main):006:1> end
=> nil
irb(main):007:0> class Constant_work
irb(main):008:1> include One
irb(main):009:1> include Two
irb(main):010:1> end
=> Constant_work
irb(main):011:0> Constant_work.new.work
NameError: uninitialized class variable @@constant in Two
from (irb):4:in `work'
from (irb):11
irb(main):012:0>

How can I get this to happen?

Dale

How about: