# encoding: utf-8
require "spec_helper"

module Sucker

  describe Response do

    use_vcr_cassette "unit/sucker/response", :record => :new_episodes

    let(:asins) { ["0816614024", "0143105825"] }

    let(:response) do
      worker = Sucker.new(
        :locale => "us",
        :key    => amazon["key"],
        :secret => amazon["secret"])
      worker << {
          "Operation"     => "ItemLookup",
          "IdType"        => "ASIN",
          "ResponseGroup" => ["ItemAttributes", "OfferFull"],
          "ItemId"        => asins }
      worker.get
    end

    describe ".new" do

      it "initializes the response body" do
        response.body.should be_an_instance_of String
      end

      it "initializes the response code" do
        response.code.should == 200
      end

      it "initializes the response time" do
        response.time.should be_an_instance_of Float
      end

      it "initializes the request URI" do
        response.uri.should be_an_instance_of String
      end
    end

    describe "#xml" do

      it "returns a Nokogiri document" do
        response.xml.should be_an_instance_of Nokogiri::XML::Document
      end

    end

    describe "#find" do

      context "when there are matches" do

        it "returns an array of matching nodes" do
          node = response.find("ItemAttributes")
          node.map { |book| book["ISBN"] }.should eql asins
        end

      end

      context "when there are no matches" do

        it "returns an empty array" do
          node = response.find("Foo")
          node.should eql []
        end

      end

    end

    describe "#each" do

    	context "when a block is given" do

      	it "yields each match to a block" do
          has_yielded = false

          response.each("ItemAttributes") do |item|
            has_yielded = true
            item.should be_an_instance_of Hash
          end

          has_yielded.should be_true
        end

      end

    	context "when no block is given" do

    		it "raises error" do
    			lambda { response.each("ItemAttributes") }.should raise_error(LocalJumpError)
    		end

    	end

    end


    describe "#map" do

    	context "when a block is given" do

      	it "yields each match to a block and maps returned values" do
          # Collect EANs
          eans = response.map("ItemAttributes") { |item| item["EAN"] }

          eans.should be_an_instance_of Array
          eans.each { |ean| ean.match(/^[0-9]{13}$/).should be_true }
        end

      end

    	context "when no block is given" do

    		it "raises error" do
    			lambda { response.map("ItemAttributes") }.should raise_error(LocalJumpError)
    		end

    	end

    end


    describe "#to_hash" do

      it "returns a hash" do
        response.to_hash.should be_an_instance_of Hash
      end

      it "converts a content hash to string" do
        response.body = "<book><title>A Thousand Plateaus</title></book>"
        response.to_hash["book"]["title"].should be_an_instance_of String
      end

      it "renders French" do
        response.body = "<Title>L'archéologie du savoir</Title>"
        response.to_hash["Title"].should eql "L'archéologie du savoir"
      end

      it "renders German" do
        response.body = "<Title>Kafka: Für eine kleine Literatur</Title>"
        response.to_hash["Title"].should eql "Kafka: Für eine kleine Literatur"
      end

      it "renders Japanese" do
        response.body = "<Title>スティーブ・ジョブズ 驚異のプレゼン―人々を惹きつける18の法則</Title>"
        response.to_hash["Title"].should eql "スティーブ・ジョブズ 驚異のプレゼン―人々を惹きつける18の法則"
      end

    end

    describe "#valid?" do

      context "when HTTP status is OK" do

        it "returns true" do
          response.should be_valid
        end

      end

      context "when HTTP status is not OK" do

        it "returns false" do
          response.code = 403
          response.should_not be_valid
        end

      end

    end

  end

end