def test_to_json_file(self):
     d = IODict({
         'x': 7,
         'y': 8,
         'z': 9,
         'a': 1,
         'b': 2,
         'c': 3,
     })
     filepath = self.output_path('test_to_json_file.json')
     d.to_json(filepath=filepath, sort_keys=True)
     self.assertFileExists(filepath)
     self.assertEqual(d, IODict.from_json(filepath))
 def test_to_json(self):
     d = IODict({
         'x': 7,
         'y': 8,
         'z': 9,
         'a': 1,
         'b': 2,
         'c': 3,
     })
     s = d.to_json(sort_keys=True)
     self.assertEqual(s, '{"a": 1, "b": 2, "c": 3, "x": 7, "y": 8, "z": 9}')