test/test_23_note.rb in writeexcel-1.0.5 vs test/test_23_note.rb in writeexcel-1.0.6

@@ -12,10 +12,10 @@
 #
 #########################################################################
 require 'helper'
 require 'stringio'
 
-class TC_note < Test::Unit::TestCase
+class TC_note < Minitest::Test
 
   def setup
     @workbook   = WriteExcel.new(StringIO.new)
     @worksheet  = @workbook.add_worksheet
   end