and_return (Spec::Mocks::BaseExpectation)

    # File lib/spec/mocks/message_expectation.rb, line 49
          def and_return(*values, &return_block)
            Kernel::raise AmbiguousReturnError unless @method_block.nil?
            case values.size
              when 0 then value = nil
              when 1 then value = values[0]
            else
              value = values
              @consecutive = true
              @expected_received_count = values.size if !ignoring_args? &&
                                                        @expected_received_count < values.size
            end
            @return_block = block_given? ? return_block : lambda { value }
          end