old_contents: # Ridiculously simple test of the os.startfile function for Windows.
  #
  # empty.vbs is an empty file (except for a comment), which does
  # nothing when run with cscript or wscript.
  #
  # A possible improvement would be to have empty.vbs do something that
  # we can detect here, to make sure that not only the os.startfile()
  # call succeeded, but also the the script actually has run.
  
  import unittest
  from test import test_support
  import os
  
  
  class TestCase(unittest.TestCase):
      def test_nonexisting(self):
          self.assertRaises(OSError, os.startfile, "nonexisting.vbs")
  
      def test_nonexisting_u(self):
          self.assertRaises(OSError, os.startfile, u"nonexisting.vbs")
  
      def test_empty(self):
          empty = os.path.join(os.path.dirname(__file__), "empty.vbs")
          os.startfile(empty)
          os.startfile(empty, "open")
  
      def test_empty_u(self):
          empty = os.path.join(os.path.dirname(__file__), "empty.vbs")
          os.startfile(unicode(empty, "mbcs"))
          os.startfile(unicode(empty, "mbcs"), "open")
  
  def test_main():
      test_support.run_unittest(TestCase)
  
  if __name__=="__main__":
      test_main()
  
new_contents: # Ridiculously simple test of the os.startfile function for Windows.
  #
  # empty.vbs is an empty file (except for a comment), which does
  # nothing when run with cscript or wscript.
  #
  # A possible improvement would be to have empty.vbs do something that
  # we can detect here, to make sure that not only the os.startfile()
  # call succeeded, but also the the script actually has run.
  
  import unittest
  from test import test_support
  
  # use this form so that the test is skipped when startfile is not available:
  from os import startfile
  
  class TestCase(unittest.TestCase):
      def test_nonexisting(self):
          self.assertRaises(OSError, startfile, "nonexisting.vbs")
  
      def test_nonexisting_u(self):
          self.assertRaises(OSError, startfile, u"nonexisting.vbs")
  
      def test_empty(self):
          empty = os.path.join(os.path.dirname(__file__), "empty.vbs")
          startfile(empty)
          startfile(empty, "open")
  
      def test_empty_u(self):
          empty = os.path.join(os.path.dirname(__file__), "empty.vbs")
          startfile(unicode(empty, "mbcs"))
          startfile(unicode(empty, "mbcs"), "open")
  
  def test_main():
      test_support.run_unittest(TestCase)
  
  if __name__=="__main__":
      test_main()
  
subject: Change the import statement so that the test is skipped when os.startfile is not present.