failure_message

# File lib/spec/matchers/change.rb, line 40
      def failure_message
        if @to
          "#{@message} should have been changed to #{@to.inspect}, but is now #{@after.inspect}"
        elsif @from
          "#{@message} should have initially been #{@from.inspect}, but was #{@before.inspect}"
        elsif @amount
          "#{@message} should have been changed by #{@amount.inspect}, but was changed by #{actual_delta.inspect}"
        elsif @minimum
          "#{@message} should have been changed by at least #{@minimum.inspect}, but was changed by #{actual_delta.inspect}"
        elsif @maximum
          "#{@message} should have been changed by at most #{@maximum.inspect}, but was changed by #{actual_delta.inspect}"
        else
          "#{@message} should have changed, but is still #{@before.inspect}"
        end
      end