Mercurial > hg
annotate tests/test-filecache.py @ 38679:b3d0c97a0820
rebase: in --confirm option just abort if hit a conflict
Before this patch, it was prompting the user in both cases 1) when
there is no conflict 2) when there is at least one conflict. But
for simplicity we can just abort if we hit a conflict and no need to
prompt in that case.
Differential Revision: https://phab.mercurial-scm.org/D3944
author | Sushil khanchi <sushilkhanchi97@gmail.com> |
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date | Sat, 14 Jul 2018 08:59:42 +0530 |
parents | b3ffa2faae04 |
children | 7caf632e30c3 |
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 stat |
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4 import subprocess |
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5 import sys |
14928 | 6 |
16683 | 7 if subprocess.call(['python', '%s/hghave' % os.environ['TESTDIR'], |
8 'cacheable']): | |
14928 | 9 sys.exit(80) |
10 | |
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11 print_ = print |
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12 def print(*args, **kwargs): |
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13 """print() wrapper that flushes stdout buffers to avoid py3 buffer issues |
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14 |
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15 We could also just write directly to sys.stdout.buffer the way the |
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16 ui object will, but this was easier for porting the test. |
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17 """ |
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18 print_(*args, **kwargs) |
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19 sys.stdout.flush() |
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20 |
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21 from mercurial import ( |
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22 extensions, |
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23 hg, |
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24 localrepo, |
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25 pycompat, |
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26 ui as uimod, |
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27 util, |
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28 vfs as vfsmod, |
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29 ) |
14928 | 30 |
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31 if pycompat.ispy3: |
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32 xrange = range |
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33 |
14928 | 34 class fakerepo(object): |
35 def __init__(self): | |
36 self._filecache = {} | |
37 | |
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38 class fakevfs(object): |
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39 |
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40 def join(self, p): |
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41 return p |
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42 |
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43 vfs = fakevfs() |
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44 |
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45 def unfiltered(self): |
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46 return self |
14928 | 47 |
48 def sjoin(self, p): | |
49 return p | |
50 | |
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51 @localrepo.repofilecache('x', 'y') |
14928 | 52 def cached(self): |
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53 print('creating') |
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54 return 'string from function' |
14928 | 55 |
56 def invalidate(self): | |
57 for k in self._filecache: | |
58 try: | |
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59 delattr(self, pycompat.sysstr(k)) |
14928 | 60 except AttributeError: |
61 pass | |
62 | |
63 def basic(repo): | |
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64 print("* neither file exists") |
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65 # calls function |
14928 | 66 repo.cached |
67 | |
68 repo.invalidate() | |
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69 print("* neither file still exists") |
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70 # uses cache |
14928 | 71 repo.cached |
72 | |
73 # create empty file | |
74 f = open('x', 'w') | |
75 f.close() | |
76 repo.invalidate() | |
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77 print("* empty file x created") |
14928 | 78 # should recreate the object |
79 repo.cached | |
80 | |
81 f = open('x', 'w') | |
82 f.write('a') | |
83 f.close() | |
84 repo.invalidate() | |
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85 print("* file x changed size") |
14928 | 86 # should recreate the object |
87 repo.cached | |
88 | |
89 repo.invalidate() | |
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90 print("* nothing changed with either file") |
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91 # stats file again, reuses object |
14928 | 92 repo.cached |
93 | |
94 # atomic replace file, size doesn't change | |
95 # hopefully st_mtime doesn't change as well so this doesn't use the cache | |
96 # because of inode change | |
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97 f = vfsmod.vfs(b'.')(b'x', b'w', atomictemp=True) |
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98 f.write(b'b') |
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99 f.close() |
14928 | 100 |
101 repo.invalidate() | |
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102 print("* file x changed inode") |
14928 | 103 repo.cached |
104 | |
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105 # create empty file y |
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106 f = open('y', 'w') |
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107 f.close() |
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108 repo.invalidate() |
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109 print("* empty file y created") |
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110 # should recreate the object |
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111 repo.cached |
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112 |
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113 f = open('y', 'w') |
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114 f.write('A') |
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115 f.close() |
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116 repo.invalidate() |
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117 print("* file y changed size") |
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118 # should recreate the object |
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119 repo.cached |
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120 |
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121 f = vfsmod.vfs(b'.')(b'y', b'w', atomictemp=True) |
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122 f.write(b'B') |
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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("* file y changed inode") |
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127 repo.cached |
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128 |
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129 f = vfsmod.vfs(b'.')(b'x', b'w', atomictemp=True) |
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130 f.write(b'c') |
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131 f.close() |
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132 f = vfsmod.vfs(b'.')(b'y', b'w', atomictemp=True) |
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133 f.write(b'C') |
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134 f.close() |
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135 |
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136 repo.invalidate() |
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137 print("* both files changed inode") |
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138 repo.cached |
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139 |
14928 | 140 def fakeuncacheable(): |
141 def wrapcacheable(orig, *args, **kwargs): | |
142 return False | |
143 | |
144 def wrapinit(orig, *args, **kwargs): | |
145 pass | |
146 | |
147 originit = extensions.wrapfunction(util.cachestat, '__init__', wrapinit) | |
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148 origcacheable = extensions.wrapfunction(util.cachestat, 'cacheable', |
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149 wrapcacheable) |
14928 | 150 |
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151 for fn in ['x', 'y']: |
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152 try: |
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153 os.remove(fn) |
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154 except OSError: |
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155 pass |
14928 | 156 |
157 basic(fakerepo()) | |
158 | |
159 util.cachestat.cacheable = origcacheable | |
160 util.cachestat.__init__ = originit | |
161 | |
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162 def test_filecache_synced(): |
26098 | 163 # test old behavior that caused filecached properties to go out of sync |
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164 os.system('hg init && echo a >> a && hg ci -qAm.') |
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165 repo = hg.repository(uimod.ui.load()) |
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166 # first rollback clears the filecache, but changelog to stays in __dict__ |
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167 repo.rollback() |
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168 repo.commit(b'.') |
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169 # second rollback comes along and touches the changelog externally |
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170 # (file is moved) |
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171 repo.rollback() |
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172 # but since changelog isn't under the filecache control anymore, we don't |
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173 # see that it changed, and return the old changelog without reconstructing |
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174 # it |
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175 repo.commit(b'.') |
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176 |
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177 def setbeforeget(repo): |
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178 os.remove('x') |
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179 os.remove('y') |
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180 repo.cached = 'string set externally' |
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181 repo.invalidate() |
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182 print("* neither file exists") |
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183 print(repo.cached) |
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184 repo.invalidate() |
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185 f = open('x', 'w') |
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186 f.write('a') |
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187 f.close() |
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188 print("* file x created") |
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189 print(repo.cached) |
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190 |
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191 repo.cached = 'string 2 set externally' |
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192 repo.invalidate() |
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193 print("* string set externally again") |
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194 print(repo.cached) |
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195 |
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196 repo.invalidate() |
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197 f = open('y', 'w') |
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198 f.write('b') |
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199 f.close() |
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200 print("* file y created") |
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201 print(repo.cached) |
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202 |
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203 def antiambiguity(): |
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204 filename = 'ambigcheck' |
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205 |
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206 # try some times, because reproduction of ambiguity depends on |
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207 # "filesystem time" |
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208 for i in xrange(5): |
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209 fp = open(filename, 'w') |
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210 fp.write('FOO') |
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211 fp.close() |
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212 |
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213 oldstat = os.stat(filename) |
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214 if oldstat[stat.ST_CTIME] != oldstat[stat.ST_MTIME]: |
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215 # subsequent changing never causes ambiguity |
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216 continue |
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217 |
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218 repetition = 3 |
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219 |
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220 # repeat changing via checkambigatclosing, to examine whether |
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221 # st_mtime is advanced multiple times as expected |
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222 for i in xrange(repetition): |
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223 # explicit closing |
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224 fp = vfsmod.checkambigatclosing(open(filename, 'a')) |
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225 fp.write('FOO') |
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226 fp.close() |
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227 |
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228 # implicit closing by "with" statement |
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229 with vfsmod.checkambigatclosing(open(filename, 'a')) as fp: |
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230 fp.write('BAR') |
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231 |
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232 newstat = os.stat(filename) |
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233 if oldstat[stat.ST_CTIME] != newstat[stat.ST_CTIME]: |
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234 # timestamp ambiguity was naturally avoided while repetition |
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235 continue |
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236 |
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237 # st_mtime should be advanced "repetition * 2" times, because |
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238 # all changes occurred at same time (in sec) |
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239 expected = (oldstat[stat.ST_MTIME] + repetition * 2) & 0x7fffffff |
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240 if newstat[stat.ST_MTIME] != expected: |
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241 print("'newstat[stat.ST_MTIME] %s is not %s (as %s + %s * 2)" % |
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242 (newstat[stat.ST_MTIME], expected, |
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243 oldstat[stat.ST_MTIME], repetition)) |
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244 |
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245 # no more examination is needed regardless of result |
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246 break |
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247 else: |
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248 # This platform seems too slow to examine anti-ambiguity |
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249 # of file timestamp (or test happened to be executed at |
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250 # bad timing). Exit silently in this case, because running |
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251 # on other faster platforms can detect problems |
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252 pass |
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253 |
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254 print('basic:') |
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255 print() |
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257 print() |
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258 print('fakeuncacheable:') |
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259 print() |
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261 test_filecache_synced() |
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262 print() |
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263 print('setbeforeget:') |
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264 print() |
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265 setbeforeget(fakerepo()) |
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266 print() |
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267 print('antiambiguity:') |
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268 print() |
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269 antiambiguity() |