from unittest import TestCase import json import textwrap class TestIndent(TestCase): def test_indent(self): h = [['blorpie'], ['whoops'], [], 'd-shtaeou', 'd-nthiouh', 'i-vhbjkhnth', {'nifty': 87}, {'field': 'yes', 'morefield': False} ] expect = textwrap.dedent("""\ [ [ "blorpie" ], [ "whoops" ], [], "d-shtaeou", "d-nthiouh", "i-vhbjkhnth", { "nifty": 87 }, { "field": "yes", "morefield": false } ]""") d1 = json.dumps(h) d2 = json.dumps(h, indent=2, sort_keys=True, separators=(',', ': ')) h1 = json.loads(d1) h2 = json.loads(d2) self.assertEquals(h1, h) self.assertEquals(h2, h) self.assertEquals(d2, expect)