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annotate tests/test-filecache.py @ 36286:daa5f47558cf

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py3: use range instead of xrange on py3 in tests/test-filecache.py xrange is not present on py3. Differential Revision: https://phab.mercurial-scm.org/D2324
author Pulkit Goyal <7895pulkit@gmail.com>
date Sun, 18 Feb 2018 17:42:33 +0530
parents 74cbbd5420ba
children ffa3026d4196
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
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1 from __future__ import absolute_import, print_function
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2 import os
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3 import subprocess
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4 import sys
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5
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6 if subprocess.call(['python', '%s/hghave' % os.environ['TESTDIR'],
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7 'cacheable']):
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8 sys.exit(80)
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9
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10 from mercurial import (
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11 extensions,
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12 hg,
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13 localrepo,
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14 pycompat,
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15 ui as uimod,
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16 util,
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17 vfs as vfsmod,
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18 )
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19
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20 if pycompat.ispy3:
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21 xrange = range
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22
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23 class fakerepo(object):
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24 def __init__(self):
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25 self._filecache = {}
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26
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27 class fakevfs(object):
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28
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29 def join(self, p):
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30 return p
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31
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32 vfs = fakevfs()
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33
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34 def unfiltered(self):
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35 return self
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36
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37 def sjoin(self, p):
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38 return p
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39
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40 @localrepo.repofilecache('x', 'y')
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41 def cached(self):
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42 print('creating')
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43 return 'string from function'
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44
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45 def invalidate(self):
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46 for k in self._filecache:
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47 try:
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48 delattr(self, k)
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49 except AttributeError:
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50 pass
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51
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52 def basic(repo):
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53 print("* neither file exists")
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54 # calls function
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55 repo.cached
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56
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57 repo.invalidate()
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58 print("* neither file still exists")
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59 # uses cache
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60 repo.cached
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61
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62 # create empty file
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63 f = open('x', 'w')
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64 f.close()
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65 repo.invalidate()
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66 print("* empty file x created")
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67 # should recreate the object
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68 repo.cached
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69
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70 f = open('x', 'w')
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71 f.write('a')
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72 f.close()
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73 repo.invalidate()
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74 print("* file x changed size")
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75 # should recreate the object
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76 repo.cached
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77
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78 repo.invalidate()
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79 print("* nothing changed with either file")
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80 # stats file again, reuses object
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81 repo.cached
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82
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83 # atomic replace file, size doesn't change
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84 # hopefully st_mtime doesn't change as well so this doesn't use the cache
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85 # because of inode change
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86 f = vfsmod.vfs('.')('x', 'w', atomictemp=True)
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87 f.write('b')
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88 f.close()
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89
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90 repo.invalidate()
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91 print("* file x changed inode")
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92 repo.cached
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93
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94 # create empty file y
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95 f = open('y', 'w')
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96 f.close()
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97 repo.invalidate()
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98 print("* empty file y created")
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99 # should recreate the object
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100 repo.cached
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101
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102 f = open('y', 'w')
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103 f.write('A')
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104 f.close()
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105 repo.invalidate()
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106 print("* file y changed size")
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107 # should recreate the object
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108 repo.cached
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109
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110 f = vfsmod.vfs('.')('y', 'w', atomictemp=True)
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111 f.write('B')
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112 f.close()
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113
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114 repo.invalidate()
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115 print("* file y changed inode")
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116 repo.cached
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117
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118 f = vfsmod.vfs('.')('x', 'w', atomictemp=True)
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119 f.write('c')
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120 f.close()
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121 f = vfsmod.vfs('.')('y', 'w', atomictemp=True)
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122 f.write('C')
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123 f.close()
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124
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125 repo.invalidate()
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126 print("* both files changed inode")
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127 repo.cached
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128
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129 def fakeuncacheable():
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130 def wrapcacheable(orig, *args, **kwargs):
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131 return False
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132
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133 def wrapinit(orig, *args, **kwargs):
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134 pass
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135
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136 originit = extensions.wrapfunction(util.cachestat, '__init__', wrapinit)
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137 origcacheable = extensions.wrapfunction(util.cachestat, 'cacheable',
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138 wrapcacheable)
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139
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parents: 20041
diff changeset
140 for fn in ['x', 'y']:
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parents: 20041
diff changeset
141 try:
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diff changeset
142 os.remove(fn)
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parents: 20041
diff changeset
143 except OSError:
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diff changeset
144 pass
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parents:
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145
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parents:
diff changeset
146 basic(fakerepo())
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parents:
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147
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parents:
diff changeset
148 util.cachestat.cacheable = origcacheable
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parents:
diff changeset
149 util.cachestat.__init__ = originit
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diff changeset
150
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Idan Kamara <idankk86@gmail.com>
parents: 16688
diff changeset
151 def test_filecache_synced():
26098
ce26928cbe41 spelling: behaviour -> behavior
timeless@mozdev.org
parents: 20045
diff changeset
152 # test old behavior that caused filecached properties to go out of sync
18313
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diff changeset
153 os.system('hg init && echo a >> a && hg ci -qAm.')
30559
d83ca854fa21 ui: factor out ui.load() to create a ui without loading configs (API)
Yuya Nishihara <yuya@tcha.org>
parents: 30332
diff changeset
154 repo = hg.repository(uimod.ui.load())
18313
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Idan Kamara <idankk86@gmail.com>
parents: 16688
diff changeset
155 # first rollback clears the filecache, but changelog to stays in __dict__
3e4a944c0d04 destroyed: keep the filecache in sync with __dict__ (issue3335) (issue3693) (issue3743)
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parents: 16688
diff changeset
156 repo.rollback()
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parents: 16688
diff changeset
157 repo.commit('.')
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parents: 16688
diff changeset
158 # second rollback comes along and touches the changelog externally
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parents: 16688
diff changeset
159 # (file is moved)
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parents: 16688
diff changeset
160 repo.rollback()
3e4a944c0d04 destroyed: keep the filecache in sync with __dict__ (issue3335) (issue3693) (issue3743)
Idan Kamara <idankk86@gmail.com>
parents: 16688
diff changeset
161 # but since changelog isn't under the filecache control anymore, we don't
3e4a944c0d04 destroyed: keep the filecache in sync with __dict__ (issue3335) (issue3693) (issue3743)
Idan Kamara <idankk86@gmail.com>
parents: 16688
diff changeset
162 # see that it changed, and return the old changelog without reconstructing
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Idan Kamara <idankk86@gmail.com>
parents: 16688
diff changeset
163 # it
3e4a944c0d04 destroyed: keep the filecache in sync with __dict__ (issue3335) (issue3693) (issue3743)
Idan Kamara <idankk86@gmail.com>
parents: 16688
diff changeset
164 repo.commit('.')
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Idan Kamara <idankk86@gmail.com>
parents: 16688
diff changeset
165
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166 def setbeforeget(repo):
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Idan Kamara <idankk86@gmail.com>
parents: 18313
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167 os.remove('x')
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Siddharth Agarwal <sid0@fb.com>
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diff changeset
168 os.remove('y')
20040
ed80cecdfc57 test-filecache.py: make setbeforeget test clearer
Siddharth Agarwal <sid0@fb.com>
parents: 18316
diff changeset
169 repo.cached = 'string set externally'
18316
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parents: 18313
diff changeset
170 repo.invalidate()
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Robert Stanca <robert.stanca7@gmail.com>
parents: 28741
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171 print("* neither file exists")
a08c90d622eb py3: use print_function in test-filecache.py
Robert Stanca <robert.stanca7@gmail.com>
parents: 28741
diff changeset
172 print(repo.cached)
18316
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parents: 18313
diff changeset
173 repo.invalidate()
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parents: 18313
diff changeset
174 f = open('x', 'w')
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parents: 18313
diff changeset
175 f.write('a')
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parents: 18313
diff changeset
176 f.close()
28742
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Robert Stanca <robert.stanca7@gmail.com>
parents: 28741
diff changeset
177 print("* file x created")
a08c90d622eb py3: use print_function in test-filecache.py
Robert Stanca <robert.stanca7@gmail.com>
parents: 28741
diff changeset
178 print(repo.cached)
18316
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parents: 18313
diff changeset
179
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diff changeset
180 repo.cached = 'string 2 set externally'
b3684fd2ff1a scmutil.filecache: support watching over multiple files
Siddharth Agarwal <sid0@fb.com>
parents: 20041
diff changeset
181 repo.invalidate()
28742
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Robert Stanca <robert.stanca7@gmail.com>
parents: 28741
diff changeset
182 print("* string set externally again")
a08c90d622eb py3: use print_function in test-filecache.py
Robert Stanca <robert.stanca7@gmail.com>
parents: 28741
diff changeset
183 print(repo.cached)
20045
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Siddharth Agarwal <sid0@fb.com>
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diff changeset
184
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diff changeset
185 repo.invalidate()
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Siddharth Agarwal <sid0@fb.com>
parents: 20041
diff changeset
186 f = open('y', 'w')
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diff changeset
187 f.write('b')
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diff changeset
188 f.close()
28742
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Robert Stanca <robert.stanca7@gmail.com>
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diff changeset
189 print("* file y created")
a08c90d622eb py3: use print_function in test-filecache.py
Robert Stanca <robert.stanca7@gmail.com>
parents: 28741
diff changeset
190 print(repo.cached)
20045
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diff changeset
191
29995
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FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 28803
diff changeset
192 def antiambiguity():
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FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 28803
diff changeset
193 filename = 'ambigcheck'
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FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 28803
diff changeset
194
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FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 28803
diff changeset
195 # try some times, because reproduction of ambiguity depends on
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FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 28803
diff changeset
196 # "filesystem time"
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FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 28803
diff changeset
197 for i in xrange(5):
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FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 28803
diff changeset
198 fp = open(filename, 'w')
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FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 28803
diff changeset
199 fp.write('FOO')
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FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 28803
diff changeset
200 fp.close()
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FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 28803
diff changeset
201
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FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 28803
diff changeset
202 oldstat = os.stat(filename)
57830bd0e787 scmutil: add file object wrapper class to check ambiguity at closing
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 28803
diff changeset
203 if oldstat.st_ctime != oldstat.st_mtime:
57830bd0e787 scmutil: add file object wrapper class to check ambiguity at closing
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parents: 28803
diff changeset
204 # subsequent changing never causes ambiguity
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FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 28803
diff changeset
205 continue
57830bd0e787 scmutil: add file object wrapper class to check ambiguity at closing
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 28803
diff changeset
206
57830bd0e787 scmutil: add file object wrapper class to check ambiguity at closing
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 28803
diff changeset
207 repetition = 3
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FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 28803
diff changeset
208
57830bd0e787 scmutil: add file object wrapper class to check ambiguity at closing
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 28803
diff changeset
209 # repeat changing via checkambigatclosing, to examine whether
30332
318a24b52eeb spelling: fixes of non-dictionary words
Mads Kiilerich <madski@unity3d.com>
parents: 29995
diff changeset
210 # st_mtime is advanced multiple times as expected
29995
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FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 28803
diff changeset
211 for i in xrange(repetition):
57830bd0e787 scmutil: add file object wrapper class to check ambiguity at closing
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 28803
diff changeset
212 # explicit closing
31251
34d57ddaf9f2 vfs: use 'vfs' module directly in 'test-filecache'
Pierre-Yves David <pierre-yves.david@ens-lyon.org>
parents: 31216
diff changeset
213 fp = vfsmod.checkambigatclosing(open(filename, 'a'))
29995
57830bd0e787 scmutil: add file object wrapper class to check ambiguity at closing
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 28803
diff changeset
214 fp.write('FOO')
57830bd0e787 scmutil: add file object wrapper class to check ambiguity at closing
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 28803
diff changeset
215 fp.close()
57830bd0e787 scmutil: add file object wrapper class to check ambiguity at closing
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 28803
diff changeset
216
57830bd0e787 scmutil: add file object wrapper class to check ambiguity at closing
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 28803
diff changeset
217 # implicit closing by "with" statement
31251
34d57ddaf9f2 vfs: use 'vfs' module directly in 'test-filecache'
Pierre-Yves David <pierre-yves.david@ens-lyon.org>
parents: 31216
diff changeset
218 with vfsmod.checkambigatclosing(open(filename, 'a')) as fp:
29995
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FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 28803
diff changeset
219 fp.write('BAR')
57830bd0e787 scmutil: add file object wrapper class to check ambiguity at closing
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 28803
diff changeset
220
57830bd0e787 scmutil: add file object wrapper class to check ambiguity at closing
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 28803
diff changeset
221 newstat = os.stat(filename)
57830bd0e787 scmutil: add file object wrapper class to check ambiguity at closing
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 28803
diff changeset
222 if oldstat.st_ctime != newstat.st_ctime:
57830bd0e787 scmutil: add file object wrapper class to check ambiguity at closing
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 28803
diff changeset
223 # timestamp ambiguity was naturally avoided while repetition
57830bd0e787 scmutil: add file object wrapper class to check ambiguity at closing
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 28803
diff changeset
224 continue
57830bd0e787 scmutil: add file object wrapper class to check ambiguity at closing
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 28803
diff changeset
225
57830bd0e787 scmutil: add file object wrapper class to check ambiguity at closing
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 28803
diff changeset
226 # st_mtime should be advanced "repetition * 2" times, because
30332
318a24b52eeb spelling: fixes of non-dictionary words
Mads Kiilerich <madski@unity3d.com>
parents: 29995
diff changeset
227 # all changes occurred at same time (in sec)
29995
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FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 28803
diff changeset
228 expected = (oldstat.st_mtime + repetition * 2) & 0x7fffffff
57830bd0e787 scmutil: add file object wrapper class to check ambiguity at closing
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 28803
diff changeset
229 if newstat.st_mtime != expected:
57830bd0e787 scmutil: add file object wrapper class to check ambiguity at closing
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 28803
diff changeset
230 print("'newstat.st_mtime %s is not %s (as %s + %s * 2)" %
57830bd0e787 scmutil: add file object wrapper class to check ambiguity at closing
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 28803
diff changeset
231 (newstat.st_mtime, expected, oldstat.st_mtime, repetition))
57830bd0e787 scmutil: add file object wrapper class to check ambiguity at closing
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 28803
diff changeset
232
57830bd0e787 scmutil: add file object wrapper class to check ambiguity at closing
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 28803
diff changeset
233 # no more examination is needed regardless of result
57830bd0e787 scmutil: add file object wrapper class to check ambiguity at closing
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 28803
diff changeset
234 break
57830bd0e787 scmutil: add file object wrapper class to check ambiguity at closing
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 28803
diff changeset
235 else:
57830bd0e787 scmutil: add file object wrapper class to check ambiguity at closing
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 28803
diff changeset
236 # This platform seems too slow to examine anti-ambiguity
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FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 28803
diff changeset
237 # of file timestamp (or test happened to be executed at
57830bd0e787 scmutil: add file object wrapper class to check ambiguity at closing
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 28803
diff changeset
238 # bad timing). Exit silently in this case, because running
57830bd0e787 scmutil: add file object wrapper class to check ambiguity at closing
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 28803
diff changeset
239 # on other faster platforms can detect problems
57830bd0e787 scmutil: add file object wrapper class to check ambiguity at closing
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 28803
diff changeset
240 pass
57830bd0e787 scmutil: add file object wrapper class to check ambiguity at closing
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 28803
diff changeset
241
28742
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Robert Stanca <robert.stanca7@gmail.com>
parents: 28741
diff changeset
242 print('basic:')
a08c90d622eb py3: use print_function in test-filecache.py
Robert Stanca <robert.stanca7@gmail.com>
parents: 28741
diff changeset
243 print()
14928
dca59d5be12d scmutil: introduce filecache
Idan Kamara <idankk86@gmail.com>
parents:
diff changeset
244 basic(fakerepo())
28742
a08c90d622eb py3: use print_function in test-filecache.py
Robert Stanca <robert.stanca7@gmail.com>
parents: 28741
diff changeset
245 print()
a08c90d622eb py3: use print_function in test-filecache.py
Robert Stanca <robert.stanca7@gmail.com>
parents: 28741
diff changeset
246 print('fakeuncacheable:')
a08c90d622eb py3: use print_function in test-filecache.py
Robert Stanca <robert.stanca7@gmail.com>
parents: 28741
diff changeset
247 print()
14928
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parents:
diff changeset
248 fakeuncacheable()
18313
3e4a944c0d04 destroyed: keep the filecache in sync with __dict__ (issue3335) (issue3693) (issue3743)
Idan Kamara <idankk86@gmail.com>
parents: 16688
diff changeset
249 test_filecache_synced()
28742
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Robert Stanca <robert.stanca7@gmail.com>
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diff changeset
250 print()
a08c90d622eb py3: use print_function in test-filecache.py
Robert Stanca <robert.stanca7@gmail.com>
parents: 28741
diff changeset
251 print('setbeforeget:')
a08c90d622eb py3: use print_function in test-filecache.py
Robert Stanca <robert.stanca7@gmail.com>
parents: 28741
diff changeset
252 print()
18316
f36375576ed5 filecache: create an entry in _filecache when __set__ is called for a missing one
Idan Kamara <idankk86@gmail.com>
parents: 18313
diff changeset
253 setbeforeget(fakerepo())
29995
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FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 28803
diff changeset
254 print()
57830bd0e787 scmutil: add file object wrapper class to check ambiguity at closing
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 28803
diff changeset
255 print('antiambiguity:')
57830bd0e787 scmutil: add file object wrapper class to check ambiguity at closing
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 28803
diff changeset
256 print()
57830bd0e787 scmutil: add file object wrapper class to check ambiguity at closing
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 28803
diff changeset
257 antiambiguity()