jbender/motion-spec

# -*- encoding : utf-8 -*-
module MotionSpec
  module Matcher
    class HaveItems
      def initialize(number_of_items)
        @number_of_items = number_of_items
      end

      def matches?(value)
        value.size == @number_of_items
      end

      [:items, :item, :keys, :values].each do |key_type_name|
        define_method(key_type_name) do
          @key_type_name = key_type_name
          self
        end
      end

      def fail!(subject, negated)
        fail FailedExpectation.new(
          FailMessageRenderer.message_for_have_items(
            negated, subject, @number_of_items, subject.size, @key_type_name
          )
        )
      end
    end
  end
end