1 from builtins import object
2 # Copyright (C) The Arvados Authors. All rights reserved.
4 # SPDX-License-Identifier: Apache-2.0
11 class JsonDiffMatcher(object):
12 """Raise AssertionError with a readable JSON diff when not __eq__().
14 Used with assert_called_with() so it's possible for a human to see
15 the differences between expected and actual call arguments that
16 include non-trivial data structures.
18 def __init__(self, expected):
19 self.expected = expected
21 def __eq__(self, actual):
22 expected_json = json.dumps(self.expected, sort_keys=True, indent=2)
23 actual_json = json.dumps(actual, sort_keys=True, indent=2)
24 if expected_json != actual_json:
25 raise AssertionError("".join(difflib.context_diff(
26 expected_json.splitlines(1),
27 actual_json.splitlines(1),
28 fromfile="Expected", tofile="Actual")))
32 def StripYAMLComments(yml):
33 return re.sub(r'(?ms)^(#.*?\n)*\n*', '', yml)