test/helper.rb in rays-0.2.1 vs test/helper.rb in rays-0.3

@@ -1,14 +1,16 @@
 %w[../xot ../rucy .]
   .map  {|s| File.expand_path "../#{s}/lib", __dir__}
   .each {|s| $:.unshift s if !$:.include?(s) && File.directory?(s)}
 
 require 'xot/test'
+require 'xot/util'
 require 'rays'
 
 require 'test/unit'
 
 include Xot::Test
+include Xot::Util
 
 
 def assert_equal_color(c1, c2, delta = 0.000001)
   assert_in_delta c1.r, c2.r, delta
   assert_in_delta c1.g, c2.g, delta