test/test_workbook.rb in writeexcel-0.6.9 vs test/test_workbook.rb in writeexcel-0.6.10

@@ -7,13 +7,9 @@
   def setup
     @test_file  = StringIO.new
     @workbook   = Workbook.new(@test_file)
   end
 
-  def teardown
-    @workbook.close
-  end
-
   def test_new
     assert_kind_of(Workbook, @workbook)
   end
 
   def test_add_worksheet