test/test_41_properties.rb in writeexcel-1.0.5 vs test/test_41_properties.rb in writeexcel-1.0.6

@@ -10,10 +10,10 @@
 # converted to Ruby by Hideo Nakamura, [e-mail]
 #
 #########################################################################
 require 'helper'
 
-class TC_properties < Test::Unit::TestCase
+class TC_properties < Minitest::Test
 
   def setup
     @smiley = '☺'   # chr 0x263A;    in perl
   end