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