# File lib/mocha/instance_method.rb, line 7
 7:     def method_exists?(method)
 8:       existing_methods = []
 9:       existing_methods += stubbee.public_methods(false)
10:       existing_methods += stubbee.protected_methods(false)
11:       existing_methods += stubbee.private_methods(false)
12:       existing_methods.any? { |m| m.to_s == method.to_s }
13:     end