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