Merge pull request #1086 from internetee/update-countries-gem

Update countries gem

Gemfile.lock

@@ -146,10 +146,9 @@ GEM
       coffee-script-source
       execjs
     coffee-script-source (1.12.2)
-    concurrent-ruby (1.1.3)
-    countries (2.0.8)
-      i18n_data (~> 0.7.0)
-      money (~> 6.7)
+    concurrent-ruby (1.1.4)
+    countries (3.0.0)
+      i18n_data (~> 0.8.0)
       sixarm_ruby_unaccent (~> 1.1)
       unicode_utils (~> 1.4)
     crack (0.4.3)
@@ -218,7 +217,7 @@ GEM
       socksify
     i18n (0.9.5)
       concurrent-ruby (~> 1.0)
-    i18n_data (0.7.0)
+    i18n_data (0.8.0)
     ice_nine (0.11.2)
     isikukood (0.1.2)
     iso8601 (0.8.6)

test/learning/countries_test.rb

@@ -0,0 +1,23 @@
+require 'test_helper'
+
+class CountriesLearningTest < ActiveSupport::TestCase
+  def test_returns_all_countries
+    assert_respond_to Country.all, :sort_by
+  end
+
+  def test_returns_country_name
+    assert_equal 'United States of America', Country.new('US').name
+  end
+
+  def test_returns_country_alpha2_code
+    assert_equal 'US', Country.new('US').alpha2
+  end
+
+  def test_returns_country_alpha3_code
+    assert_equal 'USA', Country.new('US').alpha3
+  end
+
+  def test_validates_code_when_creating_an_instance_of_country
+    assert_not Country.new('invalid')
+  end
+end