matches?

# File lib/spec/matchers/change.rb, line 12
      def matches?(target, &block)
        if block
          raise MatcherError.new("block passed to should or should_not change must use {} instead of do/end\n"
)
        end
        @target = target
        execute_change
        return false if @from && (@from != @before)
        return false if @to && (@to != @after)
        return (@before + @amount == @after) if @amount
        return ((@after - @before) >= @minimum) if @minimum
        return ((@after - @before) <= @maximum) if @maximum        
        return @before != @after
      end