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