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- from unittest import TestCase
- import simplejson as json
- def default_iterable(obj):
- return list(obj)
- class TestCheckCircular(TestCase):
- def test_circular_dict(self):
- dct = {}
- dct['a'] = dct
- self.assertRaises(ValueError, json.dumps, dct)
- def test_circular_list(self):
- lst = []
- lst.append(lst)
- self.assertRaises(ValueError, json.dumps, lst)
- def test_circular_composite(self):
- dct2 = {}
- dct2['a'] = []
- dct2['a'].append(dct2)
- self.assertRaises(ValueError, json.dumps, dct2)
- def test_circular_default(self):
- json.dumps([set()], default=default_iterable)
- self.assertRaises(TypeError, json.dumps, [set()])
- def test_circular_off_default(self):
- json.dumps([set()], default=default_iterable, check_circular=False)
- self.assertRaises(TypeError, json.dumps, [set()], check_circular=False)
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