## rspec-mocks-2.6 ### `any_instance` Set method stubs and message expectations on any instance of a class: class Foo; end Foo.any_instance.stub(:bar) { 'bar' } Foo.new.bar # => 'bar' ## rspec-mocks-2.2 ### `require "rspec/mocks/standalone"` Sets up top-level environment to explore rspec-mocks. Mostly useful in irb: $ irb > require 'rspec/mocks/standalone' > foo = double() > foo.stub(:bar) { :baz } > foo.bar => :baz