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1 #!/usr/bin/env python | |
2 # Copyright (c) 2013 The Chromium Authors. All rights reserved. | |
3 # Use of this source code is governed by a BSD-style license that can be | |
4 # found in the LICENSE file. | |
5 | |
6 """Utility to confirm that a JSON summary written by GM contains no failures. | |
7 | |
8 Usage: | |
9 python confirm_no_failures_in_json.py <filename> | |
10 """ | |
11 | |
12 __author__ = 'Elliot Poger' | |
13 | |
14 | |
15 import json | |
16 import sys | |
17 | |
18 | |
19 # These constants must be kept in sync with the kJsonKey_ constants in | |
20 # gm_expectations.cpp ! | |
21 JSONKEY_ACTUALRESULTS = 'actual-results' | |
22 JSONKEY_ACTUALRESULTS_FAILED = 'failed' | |
23 | |
24 # This is the same indent level as used by jsoncpp, just for consistency. | |
25 JSON_INDENTLEVEL = 3 | |
26 | |
27 | |
28 def Assert(filepath): | |
29 """Raises an exception if the JSON summary at filepath contains any failed | |
30 tests, or if we were unable to read the JSON summary.""" | |
31 failed_tests = GetFailedTests(filepath) | |
32 if failed_tests: | |
33 raise Exception('JSON file %s contained these test failures...\n%s' % ( | |
34 filepath, json.dumps(failed_tests, indent=JSON_INDENTLEVEL))) | |
35 | |
36 | |
37 def GetFailedTests(filepath): | |
38 """Returns the dictionary of failed tests from the JSON file at filepath.""" | |
39 json_dict = json.load(open(filepath)) | |
40 actual_results = json_dict[JSONKEY_ACTUALRESULTS] | |
41 return actual_results[JSONKEY_ACTUALRESULTS_FAILED] | |
42 | |
43 | |
44 if '__main__' == __name__: | |
45 if len(sys.argv) != 2: | |
46 raise Exception('usage: %s <input-json-filepath>' % sys.argv[0]) | |
47 Assert(sys.argv[1]) | |
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