new_contents: import unittest
  
  from . import JunitXml, TestCase
  
  
  class TestJunitXml(unittest.TestCase):
  	""" tests for the JunitXml class """
  
  	def test_basic_usage(self):
  		""" test the basic usage of the JunitXml class """
  		test_cases = []
  		for i in range(0, 5):
  			type_c = ""
  			if i % 2 == 0:
  				type_c = "failure"
  			test_cases.append(TestCase(i, "%scontents" % i,
  				type_c))
  		junit = JunitXml("demo test example", test_cases)
  		self.assertEqual(junit.total_tests, 5)
  		self.assertEqual(junit.total_failures, 3)
  		junit.dump()
  
  if __name__=="__main_":
  	main()
  
subject: add a basic usage test.