name : test_iterable.py import unittest from simplejson.compat import StringIO import simplejson as json def iter_dumps(obj, **kw): return ''.join(json.JSONEncoder(**kw).iterencode(obj)) def sio_dump(obj, **kw): sio = StringIO() json.dumps(obj, **kw) return sio.getvalue() class TestIterable(unittest.TestCase): def test_iterable(self): for l in ([], [1], [1, 2], [1, 2, 3]): for opts in [{}, {'indent': 2}]: for dumps in (json.dumps, iter_dumps, sio_dump): expect = dumps(l, **opts) default_expect = dumps(sum(l), **opts) # Default is False self.assertRaises(TypeError, dumps, iter(l), **opts) self.assertRaises(TypeError, dumps, iter(l), iterable_as_array=False, **opts) self.assertEqual(expect, dumps(iter(l), iterable_as_array=True, **opts)) # Ensure that the "default" gets called self.assertEqual(default_expect, dumps(iter(l), default=sum, **opts)) self.assertEqual(default_expect, dumps(iter(l), iterable_as_array=False, default=sum, **opts)) # Ensure that the "default" does not get called self.assertEqual( expect, dumps(iter(l), iterable_as_array=True, default=sum, **opts))