Added Korean unit tests (#739)

test/test_ko_locale.rb

@@ -0,0 +1,29 @@
+require File.expand_path(File.dirname(__FILE__) + '/test_helper.rb')
+
+class TestKoLocale < Test::Unit::TestCase
+  def setup
+    Faker::Config.locale = 'ko'
+  end
+
+  def teardown
+    Faker::Config.locale = nil
+  end
+
+  def test_ko_methods
+    assert Faker::Address.postcode.is_a? String
+    assert Faker::Address.state_abbr.is_a? String
+    assert Faker::Address.city_suffix.is_a? String
+    assert Faker::Address.city_name.is_a? String
+    assert Faker::Address.street_name.is_a? String
+    assert Faker::Company.suffix.is_a? String
+    assert Faker::Company.prefix.is_a? String
+    assert Faker::Company.name.is_a? String
+    assert Faker::Internet.free_email.is_a? String
+    assert Faker::Internet.domain_suffix.is_a? String
+    assert Faker::Lorem.words.is_a? Array
+    assert Faker::Name.last_name.is_a? String
+    assert Faker::Name.first_name.is_a? String
+    assert Faker::Name.name.is_a? String
+  end
+
+end