gistfile1.txt

class A

self << class

private

  def private_method_test
  end

end

end

---------

class B
private

  def self.private_method_test
  end

end

------

require 'mocha'
class TestClassA
  A.expects(:private_method_test).returns(nil)
  B.expects(:private_method_test).returns(nil)
end

class TestClassB
  A.send(:private_method_test) #Throws method not found exception
  B.send(:private_method_test) #Works fine?
end