Adds abstract BaseScraper#scrape method

Author: cadwallion

lib/bnet_scraper/starcraft2/base_scraper.rb

@@ -44,6 +44,10 @@ def profile_url bnet_index = @bnet_index
       def region_info
         REGIONS[region] 
       end
+
+      def scrape
+        raise NotImplementedError, "Abstract method #scrape called."
+      end
     end
   end
 end

spec/starcraft2/base_scraper_spec.rb

@@ -5,4 +5,10 @@
     let(:scraper_class) { BnetScraper::Starcraft2::BaseScraper }
     let(:subject) { scraper_class.new(url: 'http://us.battle.net/sc2/en/profile/2377239/1/Demon/') }
   end
+
+  describe '#scrape' do
+    it 'should raise an error calling scrape' do
+      expect { subject.scrape }.to raise_error NotImplementedError
+    end
+  end
 end