class RSpec::Mocks::AndCallOriginalImplementation

def call(*args, &block)
  @method.call(*args, &block)
end

def cannot_modify_further_error
  CannotModifyFurtherError.new "This method has already been configured " +
    "to call the original implementation, and cannot be modified further."
end

def initial_action=(value)
  raise cannot_modify_further_error
end

def initialize(method)
  @method = method
end

def inner_action
  true
end

def inner_action=(value)
  raise cannot_modify_further_error
end

def present?
  true
end

def terminal_action=(value)
  raise cannot_modify_further_error
end