$:.unshift "../lib"

require "interface"

module MyInterface
	extend Interface
	required_methods :foo, :bar
end
	
module MySubInterface
	extend Interface
	extend MyInterface
	required_methods :baz
end

class MyClass
	def baz; end
	def bar; end
	def foo; end
	include MySubInterface
end
	
=begin
# Raises an error
class MyClass
	def baz; end
	include MyInterface
end
=end