def test_normalization(self):
field = CpfField()
self.assertIsNone(field.normalize(''))
self.assertIsNone(field.normalize(None))
self.assertEquals('06768725815', field.normalize('067.687.258-15'))
self.assertEquals('13731760592', field.normalize('13731760592'))
def test_normalization(self):
field = CpfField()
self.assertIsNone(field.normalize(""))
self.assertIsNone(field.normalize(None))
self.assertEquals("06768725815", field.normalize("067.687.258-15"))
self.assertEquals("13731760592", field.normalize("13731760592"))