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1 # Copyright 2014 The Chromium Authors. All rights reserved. | |
2 # Use of this source code is governed by a BSD-style license that can be | |
3 # found in the LICENSE file. | |
4 | |
5 import collections | |
6 import os | |
7 import sys | |
8 import time | |
9 | |
10 from .type_definitions import DirSeen, Handler, MultiTest | |
11 from .serialize import WriteNewData, DiffData, NonExistant, GetCurrentData | |
12 | |
13 | |
14 ForcedWriteAction = collections.namedtuple('ForcedWriteAction', 'test') | |
15 DiffWriteAction = collections.namedtuple('DiffWriteAction', 'test') | |
16 SchemaDiffWriteAction = collections.namedtuple('SchemaDiffWriteAction', 'test') | |
17 MissingWriteAction = collections.namedtuple('MissingWriteAction', 'test') | |
18 NoAction = collections.namedtuple('NoAction', 'test') | |
19 | |
20 | |
21 class TrainHandler(Handler): | |
22 """Write test expectations to disk.""" | |
23 @classmethod | |
24 def add_options(cls, parser): | |
25 parser.add_argument( | |
26 '--force', action='store_true', help=( | |
27 'Immediately write expectations to disk instead of determining if ' | |
28 'they contain a diff from the current expectations.' | |
29 )) | |
30 | |
31 @classmethod | |
32 def gen_stage_loop(cls, _opts, tests, put_next_stage, put_result_stage): | |
33 dirs_seen = set() | |
34 for test in tests: | |
35 subtests = test.tests | |
36 for subtest in subtests: | |
37 if subtest.expect_dir not in dirs_seen: | |
38 try: | |
39 os.makedirs(subtest.expect_dir) | |
40 except OSError: | |
41 pass | |
42 put_result_stage(DirSeen(subtest.expect_dir)) | |
43 dirs_seen.add(subtest.expect_dir) | |
44 put_next_stage(test) | |
45 | |
46 @classmethod | |
47 def run_stage_loop(cls, opts, tests_results, put_next_stage): | |
48 for test, result, _ in tests_results: | |
49 if opts.force: | |
50 WriteNewData(test, result.data) | |
51 put_next_stage(ForcedWriteAction(test)) | |
52 continue | |
53 | |
54 try: | |
55 current, same_schema = GetCurrentData(test) | |
56 except ValueError: | |
57 current = NonExistant | |
58 same_schema = False | |
59 diff = DiffData(current, result.data) | |
60 if diff is not None or not same_schema: | |
61 WriteNewData(test, result.data) | |
62 if current is NonExistant: | |
63 put_next_stage(MissingWriteAction(test)) | |
64 elif diff: | |
65 put_next_stage(DiffWriteAction(test)) | |
66 else: | |
67 put_next_stage(SchemaDiffWriteAction(test)) | |
68 else: | |
69 put_next_stage(NoAction(test)) | |
70 | |
71 class ResultStageHandler(Handler.ResultStageHandler): | |
72 def __init__(self, opts): | |
73 super(TrainHandler.ResultStageHandler, self).__init__(opts) | |
74 self.dirs_seen = set() | |
75 self.files_expected = collections.defaultdict(set) | |
76 self.start = time.time() | |
77 self.num_tests = 0 | |
78 self.verbose_actions = [] | |
79 self.normal_actions = [] | |
80 | |
81 def _record_expected(self, test, indicator): | |
82 self.num_tests += 1 | |
83 if not self.opts.quiet: | |
84 sys.stdout.write(indicator) | |
85 sys.stdout.flush() | |
86 if test.expect_path() is not None: | |
87 head, tail = os.path.split(test.expect_path()) | |
88 self.files_expected[head].add(tail) | |
89 | |
90 def _record_write(self, test, indicator, why): | |
91 self._record_expected(test, indicator) | |
92 if test.expect_path() is not None: | |
93 name = test.expect_path() if self.opts.verbose else test.name | |
94 self.normal_actions.append('Wrote %s: %s' % (name, why)) | |
95 | |
96 def handle_DirSeen(self, dirseen): | |
97 self.dirs_seen.add(dirseen.dir) | |
98 | |
99 def handle_NoAction(self, result): | |
100 self._record_expected(result.test, '.') | |
101 self.verbose_actions.append('%s did not change' % result.test.name) | |
102 | |
103 def handle_ForcedWriteAction(self, result): | |
104 self._record_write(result.test, 'F', 'forced') | |
105 | |
106 def handle_DiffWriteAction(self, result): | |
107 self._record_write(result.test, 'D', 'diff') | |
108 | |
109 def handle_SchemaDiffWriteAction(self, result): | |
110 self._record_write(result.test, 'S', 'schema changed') | |
111 | |
112 def handle_MissingWriteAction(self, result): | |
113 self._record_write(result.test, 'M', 'missing') | |
114 | |
115 def handle_TestError(self, result): | |
116 self._record_expected(result.test, 'E') | |
117 self.normal_actions.append('%s failed: %s' % | |
118 (result.test.name, result.message)) | |
119 | |
120 def finalize(self, aborted): | |
121 super(TrainHandler.ResultStageHandler, self).finalize(aborted) | |
122 | |
123 if not aborted and not self.opts.test_glob: | |
124 for d in self.dirs_seen: | |
125 expected = self.files_expected[d] | |
126 for f in os.listdir(d): | |
127 # Skip OWNERS files and files beginning with a '.' (like '.svn') | |
128 if f == 'OWNERS' or f[0] == '.': | |
129 continue | |
130 if f not in expected: | |
131 path = os.path.join(d, f) | |
132 os.unlink(path) | |
133 if self.opts.verbose: | |
134 print 'Removed unexpected file', path | |
135 | |
136 if not self.opts.quiet: | |
137 print | |
138 | |
139 if self.normal_actions: | |
140 print '\n'.join(self.normal_actions) | |
141 if self.opts.verbose: | |
142 if self.verbose_actions: | |
143 print '\n'.join(self.verbose_actions) | |
144 | |
145 trained = sum(len(x) for x in self.files_expected.itervalues()) | |
146 print '-' * 70 | |
147 print 'Trained %d tests in %0.3fs (ran %d tests)' % ( | |
148 trained, time.time() - self.start, self.num_tests) | |
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