1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
|
# Copyright (c) 2012 The Chromium Authors. All rights reserved.
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.
import unittest
import subprocess
bisect_builds = __import__('bisect-builds')
class FakeProcess:
called_num_times = 0
def __init__(self, returncode):
self.returncode = returncode
FakeProcess.called_num_times += 1
def communicate(self):
return ('', '')
class BisectTest(unittest.TestCase):
patched = []
max_rev = 10000
fake_process_return_code = 0
def monkey_patch(self, obj, name, new):
self.patched.append((obj, name, getattr(obj, name)))
setattr(obj, name, new)
def clear_patching(self):
for obj, name, old in self.patched:
setattr(obj, name, old)
self.patched = []
def setUp(self):
FakeProcess.called_num_times = 0
self.fake_process_return_code = 0
self.monkey_patch(bisect_builds.DownloadJob, 'Start', lambda *args: None)
self.monkey_patch(bisect_builds.DownloadJob, 'Stop', lambda *args: None)
self.monkey_patch(bisect_builds.DownloadJob, 'WaitFor', lambda *args: None)
self.monkey_patch(bisect_builds, 'UnzipFilenameToDir', lambda *args: None)
self.monkey_patch(
subprocess, 'Popen',
lambda *args, **kwargs: FakeProcess(self.fake_process_return_code))
self.monkey_patch(bisect_builds.PathContext, 'ParseDirectoryIndex',
lambda *args: range(self.max_rev))
def tearDown(self):
self.clear_patching()
def bisect(self, good_rev, bad_rev, evaluate, num_runs=1):
base_url = bisect_builds.CHROMIUM_BASE_URL
archive = 'linux'
asan = False
use_local_cache = False
context = bisect_builds.PathContext(base_url, archive, good_rev, bad_rev,
asan, use_local_cache)
(minrev, maxrev, _) = bisect_builds.Bisect(
context=context,
evaluate=evaluate,
num_runs=num_runs,
profile=None,
try_args=[])
return (minrev, maxrev)
def testBisectConsistentAnswer(self):
self.assertEqual(self.bisect(1000, 100, lambda *args: 'g'), (100, 101))
self.assertEqual(self.bisect(100, 1000, lambda *args: 'b'), (100, 101))
self.assertEqual(self.bisect(2000, 200, lambda *args: 'b'), (1999, 2000))
self.assertEqual(self.bisect(200, 2000, lambda *args: 'g'), (1999, 2000))
def testBisectMultipleRunsEarlyReturn(self):
self.fake_process_return_code = 1
self.assertEqual(self.bisect(1, 3, lambda *args: 'b', num_runs=10), (1, 2))
self.assertEqual(FakeProcess.called_num_times, 1)
def testBisectAllRunsWhenAllSucceed(self):
self.assertEqual(self.bisect(1, 3, lambda *args: 'b', num_runs=10), (1, 2))
self.assertEqual(FakeProcess.called_num_times, 10)
if __name__ == '__main__':
unittest.main()
|
