def test_create(self):
     f = File("hello")
     f.createFile()
     self.assertTrue(f.exists())
     self.assertTrue(f.isRegularFile())
     self.assertFalse(f.isDirectory())
 def create(self): 
     f = File("hello")
     f.createFile()
     assert(f.exists())
     assert(f.isRegularFile())
     assert(not f.isDirectory())