Use unittest's asserts

test.py

@@ -118,8 +118,8 @@ class T(unittest.TestCase):
 					except SystemExit:
 						pass
 				output = output.getvalue()
-				assert len(output) > 0
-				assert '\n' in output
+				self.assertGreater(len(output), 0)
+				self.assertIn('\n', output)
 	
 	def test_correct_output(self):
 		"""