Update specs to test against fixture data.

lib/carmen/region.rb

@@ -22,6 +22,7 @@ def initialize(data={})
     end
 
     def subregions
+      return [] unless subregions?
       @subregions ||= load_subregions
     end
 

spec/carmen/country_spec.rb

@@ -3,32 +3,51 @@
 describe Carmen::Country do
 
   it "provides an API for finding countries by name" do
-    us = Carmen::Country.named('United States')
-    us.instance_of?(Carmen::Region).must_equal true
+    eastasia = Carmen::Country.named('Eastasia')
+    eastasia.instance_of?(Carmen::Region).must_equal true
   end
 
   it "provides an API for finding countries by code" do
-    us = Carmen::Country.coded('US')
-    us.instance_of?(Carmen::Region).must_equal true
+    eurasia = Carmen::Country.coded('EU')
+    eurasia.instance_of?(Carmen::Region).must_equal true
   end
 
-  describe "with a country" do
+  it "is of type :country" do
+    @oceania = Carmen::Country.coded('OC')
+    @oceania.type.must_equal 'country'
+  end
 
+  describe "a country with subregions" do
     before do
-      @us = Carmen::Country.coded('US')
+      @oceania = Carmen::Country.coded('OC')
     end
 
     it 'has a subregion data path' do
-      expected = Carmen.data_path + 'regions/us.yml'
-      @us.subregion_data_path.must_equal expected
+      expected = Carmen.data_path + 'regions/oc.yml'
+      @oceania.subregion_data_path.must_equal expected
     end
 
     it "has subregions" do
-      @us.subregions.instance_of?(Carmen::RegionCollection).must_equal true
+      @oceania.subregions?.must_equal true
+    end
+
+    it "has subregions" do
+      @oceania.subregions.instance_of?(Carmen::RegionCollection).must_equal true
+      @oceania.subregions.size.must_equal 1
+    end
+  end
+
+  describe "a country without subregions" do
+    before do
+      @eastasia = Carmen::Country.coded('ES')
+    end
+
+    it "has no subregions" do
+      @eastasia.subregions?.must_equal false
     end
 
-    it "is of type :country" do
-      @us.type.must_equal 'country'
+    it "has an empty subregions collection" do
+      @eastasia.subregions.must_equal []
     end
   end
 

spec/carmen/region_spec.rb

@@ -3,8 +3,8 @@
 describe Carmen::Region do
 
   it 'has a reasonable inspect value' do
-    us = Carmen::Country.coded('US')
-    us.inspect.must_equal '<#Carmen::Region type=country subregions?=true>'
+    oceania = Carmen::Country.coded('OC')
+    oceania.inspect.must_equal '<#Carmen::Region type=country subregions?=true>'
   end
 
 end

spec/carmen/world_spec.rb

@@ -6,8 +6,8 @@
     Carmen::World.is_a?(Carmen::Region).must_equal(true)
   end
 
-  it 'has 200 subregions' do
-    Carmen::World.subregions.size.must_equal(249)
+  it 'has 3 subregions' do
+    Carmen::World.subregions.size.must_equal(3)
   end
 
 end

spec/data/regions/oc.yml

@@ -0,0 +1,8 @@
+---
+- code: OC-01
+  name: Airstrip One
+  type: providence
+  subregions:
+  - code: OC-LO
+    name: London
+    type: city

spec/data/world.yml

@@ -0,0 +1,22 @@
+--- 
+- alpha_2_code: OC
+  alpha_3_code: OCE
+  numeric_code: "001"
+  common_name: Oceania
+  name: Oceania
+  official_name: The Superstate of Oceania
+  type: country
+- alpha_2_code: EU
+  alpha_3_code: EUR
+  numeric_code: "001"
+  common_name: Eurasia
+  name: Eurasia
+  official_name: The Superstate of Eurasia
+  type: country
+- alpha_2_code: ES
+  alpha_3_code: EST
+  numeric_code: "003"
+  common_name: Eastasia
+  name: Eastasia
+  official_name: The Superstate of Eastasia
+  type: country