added normal unittest version of ruby test

GildedRose/ruby/gilded_rose_tests.rb

@@ -0,0 +1,12 @@
+require File.join(File.dirname(__FILE__), 'gilded_rose')
+require 'test/unit'
+
+class TestUntitled < Test::Unit::TestCase
+
+  def test_foo
+    items = [Item.new("foo", 0, 0)]
+    GildedRose.new(items).update_quality()
+    assert_equal items[0].name, "fixme"
+  end
+
+end