Handle Deal API failing

lib/groupon_api.rb

@@ -4,6 +4,6 @@
 require "groupon_api/request"
 
 module GrouponApi
-  API_KEY_FORMAT = /US_AFF_0_\d+_212556_0/
-  API_BASE = 'partner-api.groupon.com'
+  API_KEY_FORMAT = /UK_AFF_0_\d+_\d+_0/
+  API_BASE = 'partner-int-api.groupon.com'
 end

lib/groupon_api/deals.rb

@@ -1,13 +1,17 @@
 module GrouponApi
   def self.deals(params)
     raise ::ArgumentError, 'param :ts_token cannot be nil' if GrouponApi.config.ts_token.nil?
-    raise ::ArgumentError, 'param :ts_token must match /US_AFF_0_\d+_212556_0/' unless GrouponApi.config.ts_token.match(API_KEY_FORMAT)
+    raise ::ArgumentError, 'param :ts_token must match /UK_AFF_0_\d+_\d+_0/' unless GrouponApi.config.ts_token.match(API_KEY_FORMAT)
 
     params.merge!(tsToken: GrouponApi.config.ts_token)
     params.merge!(GrouponApi.config.deals) if GrouponApi.config.deals.kind_of?(Hash)
 
     puts "#{__FILE__}:#{__LINE__} params: #{params}" if GrouponApi.config.debug
 
-    GrouponApi::Request.call('deals', params)['deals'].collect{|deal| HashWithIndifferentAccess.new(deal)}
+    results = GrouponApi::Request.call('deals', params)
+
+    return [] if results.nil? || results.length == 0 || results['deals'].nil?
+
+    results['deals'].collect{|deal| HashWithIndifferentAccess.new(deal)}
   end
-end
+end

spec/groupon_api_spec.rb

@@ -26,6 +26,13 @@
         radius: 10
       }
     }
+    let(:empty_lat_long_params){
+      {
+        lat: nil,
+        lng: nil,
+        radius: 10
+      }
+    }
     context 'without API key' do
       include_context :without_api_key
       it "throws an exception" do
@@ -48,6 +55,33 @@
           expect(result.size).to eq(0)
         end  
       end
+      context 'crazy lat and long' do
+        it 'returns an empty Array' do
+          allow(GrouponApi::Request).to receive('call').with('deals', empty_lat_long_params).and_return([])
+          result = described_class.deals(empty_lat_long_params)
+
+          expect(result).to be_a(Array)
+          expect(result.size).to eq(0)
+        end
+      end
+      context 'problem in GrouponApi' do
+        it 'returns an empty Array' do
+          allow(GrouponApi::Request).to receive('call').with('deals', valid_params).and_return(nil)
+          result = described_class.deals(valid_params)
+
+          expect(result).to be_a(Array)
+          expect(result.size).to eq(0)
+        end
+      end
+      context 'no deals returned in GrouponApi' do
+        it 'returns an empty Array' do
+          allow(GrouponApi::Request).to receive('call').with('deals', valid_params).and_return({deals: []})
+          result = described_class.deals(valid_params)
+
+          expect(result).to be_a(Array)
+          expect(result.size).to eq(0)
+        end
+      end
       context 'with results' do  
         it "returns an Array of Hashes" do
           result = described_class.deals(valid_params)

spec/spec_helper.rb

@@ -4,5 +4,5 @@
 require 'groupon_api' # and any other gems you need
 
 def your_ts_token
-  ''
+  'UK_AFF_0_205557_212556_0'
 end