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diff tests/test-cache-corruption.t @ 5868:c61e1577c62f stable

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tests: add a separate test file to test cache corruption and recovery
author Anton Shestakov <av6@dwimlabs.net>
date Mon, 05 Apr 2021 16:35:47 +0800
parents
children 5435777c307c
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--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/tests/test-cache-corruption.t	Mon Apr 05 16:35:47 2021 +0800
@@ -0,0 +1,318 @@
+Testing cache corruption and recovery
+https://bz.mercurial-scm.org/show_bug.cgi?id=6354
+
+  $ . $TESTDIR/testlib/pythonpath.sh
+
+  $ cat << EOF >> $HGRCPATH
+  > [extensions]
+  > evolve =
+  > [experimental]
+  > obshashrange = 1
+  > obshashrange.warm-cache = yes
+  > [ui]
+  > logtemplate = "{rev} {node|short} {desc} {tags}\n"
+  > EOF
+
+  $ cat >> repack.py << EOF
+  > import struct
+  > import sys
+  > data = []
+  > with open(sys.argv[1], 'rb') as f:
+  >     header = f.read(24)
+  >     while True:
+  >         buf = f.read(8)
+  >         if not buf: break
+  >         data.append(struct.unpack('<q', buf)[0])
+  > with open(sys.argv[1], 'wb') as f:
+  >     f.write(header)
+  >     for item in data:
+  >         f.write(struct.pack('<l', item))
+  > EOF
+
+  $ cat >> truncate.py << EOF
+  > import os
+  > import sys
+  > with open(sys.argv[1], 'ab') as fp:
+  >     fp.seek(int(sys.argv[2]), os.SEEK_END)
+  >     fp.truncate()
+  > EOF
+
+Simple linear setup
+
+  $ hg init linear
+  $ cd linear
+
+  $ hg debugbuilddag '+3'
+  $ hg log -G
+  o  2 01241442b3c2 r2 tip
+  |
+  o  1 66f7d451a68b r1
+  |
+  o  0 1ea73414a91b r0
+  
+  $ f -s .hg/cache/evoext-*
+  .hg/cache/evoext-depthcache-00: size=48
+  .hg/cache/evoext-firstmerge-00: size=48
+  .hg/cache/evoext-obscache-00: size=67
+  .hg/cache/evoext-stablesortcache-00: size=52
+
+testing depthcache
+
+  $ f -H .hg/cache/evoext-depthcache-00
+  .hg/cache/evoext-depthcache-00:
+  0000: 00 00 00 02 01 24 14 42 b3 c2 bf 32 11 e5 93 b5 |.....$.B...2....|
+  0010: 49 c6 55 ea 65 b2 95 e3 01 00 00 00 00 00 00 00 |I.U.e...........|
+  0020: 02 00 00 00 00 00 00 00 03 00 00 00 00 00 00 00 |................|
+
+  $ hg debugdepth --rev 'all()' --method compare --debug
+  1ea73414a91b 1
+  66f7d451a68b 2
+  01241442b3c2 3
+
+  $ "$PYTHON" ../repack.py .hg/cache/evoext-depthcache-00
+  $ f -H .hg/cache/evoext-depthcache-00
+  .hg/cache/evoext-depthcache-00:
+  0000: 00 00 00 02 01 24 14 42 b3 c2 bf 32 11 e5 93 b5 |.....$.B...2....|
+  0010: 49 c6 55 ea 65 b2 95 e3 01 00 00 00 02 00 00 00 |I.U.e...........|
+  0020: 03 00 00 00                                     |....|
+
+  $ hg debugdepth --rev 'all()' --method compare --debug
+  depthcache file seems to be corrupted, it will be rebuilt from scratch
+  1ea73414a91b 1
+  66f7d451a68b 2
+  01241442b3c2 3
+
+  $ "$PYTHON" ../truncate.py .hg/cache/evoext-depthcache-00 -4
+  $ f -H .hg/cache/evoext-depthcache-00
+  .hg/cache/evoext-depthcache-00:
+  0000: 00 00 00 02 01 24 14 42 b3 c2 bf 32 11 e5 93 b5 |.....$.B...2....|
+  0010: 49 c6 55 ea 65 b2 95 e3 01 00 00 00 00 00 00 00 |I.U.e...........|
+  0020: 02 00 00 00 00 00 00 00 03 00 00 00             |............|
+
+  $ hg debugdepth --rev 'all()' --method compare --debug
+  depthcache file seems to be corrupted, it will be rebuilt from scratch
+  1ea73414a91b 1
+  66f7d451a68b 2
+  01241442b3c2 3
+
+testing firstmergecache
+
+  $ f -H .hg/cache/evoext-firstmerge-00
+  .hg/cache/evoext-firstmerge-00:
+  0000: 00 00 00 02 01 24 14 42 b3 c2 bf 32 11 e5 93 b5 |.....$.B...2....|
+  0010: 49 c6 55 ea 65 b2 95 e3 ff ff ff ff ff ff ff ff |I.U.e...........|
+  0020: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff |................|
+
+  $ hg debugfirstmergecache --debug
+  1ea73414a91b -1
+  66f7d451a68b -1
+  01241442b3c2 -1
+
+  $ "$PYTHON" ../repack.py .hg/cache/evoext-firstmerge-00
+  $ f -H .hg/cache/evoext-firstmerge-00
+  .hg/cache/evoext-firstmerge-00:
+  0000: 00 00 00 02 01 24 14 42 b3 c2 bf 32 11 e5 93 b5 |.....$.B...2....|
+  0010: 49 c6 55 ea 65 b2 95 e3 ff ff ff ff ff ff ff ff |I.U.e...........|
+  0020: ff ff ff ff                                     |....|
+
+  $ hg debugfirstmergecache --debug
+  firstmergecache file seems to be corrupted, it will be rebuilt from scratch
+  1ea73414a91b -1
+  66f7d451a68b -1
+  01241442b3c2 -1
+
+  $ "$PYTHON" ../truncate.py .hg/cache/evoext-firstmerge-00 -4
+  $ f -H .hg/cache/evoext-firstmerge-00
+  .hg/cache/evoext-firstmerge-00:
+  0000: 00 00 00 02 01 24 14 42 b3 c2 bf 32 11 e5 93 b5 |.....$.B...2....|
+  0010: 49 c6 55 ea 65 b2 95 e3 ff ff ff ff ff ff ff ff |I.U.e...........|
+  0020: ff ff ff ff ff ff ff ff ff ff ff ff             |............|
+
+  $ hg debugfirstmergecache --debug
+  firstmergecache file seems to be corrupted, it will be rebuilt from scratch
+  1ea73414a91b -1
+  66f7d451a68b -1
+  01241442b3c2 -1
+
+testing stablesortcache
+
+  $ f -H .hg/cache/evoext-stablesortcache-00
+  .hg/cache/evoext-stablesortcache-00:
+  0000: 00 00 00 02 01 24 14 42 b3 c2 bf 32 11 e5 93 b5 |.....$.B...2....|
+  0010: 49 c6 55 ea 65 b2 95 e3 00 00 00 18 00 00 00 00 |I.U.e...........|
+  0020: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................|
+  0030: 00 00 00 00                                     |....|
+
+  $ hg debugstablesortcache --debug
+  number of revisions:            3
+  number of merge:                0
+  number of jumps:                0
+
+  $ "$PYTHON" ../truncate.py .hg/cache/evoext-stablesortcache-00 -4
+  $ f -H .hg/cache/evoext-stablesortcache-00
+  .hg/cache/evoext-stablesortcache-00:
+  0000: 00 00 00 02 01 24 14 42 b3 c2 bf 32 11 e5 93 b5 |.....$.B...2....|
+  0010: 49 c6 55 ea 65 b2 95 e3 00 00 00 18 00 00 00 00 |I.U.e...........|
+  0020: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................|
+
+  $ hg debugstablesortcache --debug
+  number of revisions:            3
+  stablesortcache file seems to be corrupted, it will be rebuilt from scratch
+  number of merge:                0
+  number of jumps:                0
+
+  $ cd ..
+
+A "diamond" setup with a merge
+
+  $ hg init with-a-merge
+  $ cd with-a-merge
+
+  $ hg debugbuilddag '+2 *2 /2'
+  $ hg log -G
+  o    3 2b6d669947cd r3 tip
+  |\
+  | o  2 fa942426a6fd r2
+  | |
+  o |  1 66f7d451a68b r1
+  |/
+  o  0 1ea73414a91b r0
+  
+  $ f -s .hg/cache/evoext-*
+  .hg/cache/evoext-depthcache-00: size=56
+  .hg/cache/evoext-firstmerge-00: size=56
+  .hg/cache/evoext-obscache-00: size=68
+  .hg/cache/evoext-stablesortcache-00: size=84
+
+testing depthcache
+
+  $ f -H .hg/cache/evoext-depthcache-00
+  .hg/cache/evoext-depthcache-00:
+  0000: 00 00 00 03 2b 6d 66 99 47 cd 52 4d 74 f4 3c 1b |....+mf.G.RMt.<.|
+  0010: 11 c7 84 85 89 70 7e ef 01 00 00 00 00 00 00 00 |.....p~.........|
+  0020: 02 00 00 00 00 00 00 00 02 00 00 00 00 00 00 00 |................|
+  0030: 04 00 00 00 00 00 00 00                         |........|
+
+  $ hg debugdepth --rev 'all()' --method compare --debug
+  1ea73414a91b 1
+  66f7d451a68b 2
+  fa942426a6fd 2
+  2b6d669947cd 4
+
+  $ "$PYTHON" ../repack.py .hg/cache/evoext-depthcache-00
+  $ f -H .hg/cache/evoext-depthcache-00
+  .hg/cache/evoext-depthcache-00:
+  0000: 00 00 00 03 2b 6d 66 99 47 cd 52 4d 74 f4 3c 1b |....+mf.G.RMt.<.|
+  0010: 11 c7 84 85 89 70 7e ef 01 00 00 00 02 00 00 00 |.....p~.........|
+  0020: 02 00 00 00 04 00 00 00                         |........|
+
+  $ hg debugdepth --rev 'all()' --method compare --debug
+  depthcache file seems to be corrupted, it will be rebuilt from scratch
+  1ea73414a91b 1
+  66f7d451a68b 2
+  fa942426a6fd 2
+  2b6d669947cd 4
+
+  $ "$PYTHON" ../truncate.py .hg/cache/evoext-depthcache-00 -4
+  $ f -H .hg/cache/evoext-depthcache-00
+  .hg/cache/evoext-depthcache-00:
+  0000: 00 00 00 03 2b 6d 66 99 47 cd 52 4d 74 f4 3c 1b |....+mf.G.RMt.<.|
+  0010: 11 c7 84 85 89 70 7e ef 01 00 00 00 00 00 00 00 |.....p~.........|
+  0020: 02 00 00 00 00 00 00 00 02 00 00 00 00 00 00 00 |................|
+  0030: 04 00 00 00                                     |....|
+
+  $ hg debugdepth --rev 'all()' --method compare --debug
+  depthcache file seems to be corrupted, it will be rebuilt from scratch
+  1ea73414a91b 1
+  66f7d451a68b 2
+  fa942426a6fd 2
+  2b6d669947cd 4
+
+testing firstmergecache
+
+  $ f -H .hg/cache/evoext-firstmerge-00
+  .hg/cache/evoext-firstmerge-00:
+  0000: 00 00 00 03 2b 6d 66 99 47 cd 52 4d 74 f4 3c 1b |....+mf.G.RMt.<.|
+  0010: 11 c7 84 85 89 70 7e ef ff ff ff ff ff ff ff ff |.....p~.........|
+  0020: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff |................|
+  0030: 03 00 00 00 00 00 00 00                         |........|
+
+  $ hg debugfirstmergecache --debug
+  1ea73414a91b -1
+  66f7d451a68b -1
+  fa942426a6fd -1
+  2b6d669947cd 3
+
+  $ "$PYTHON" ../repack.py .hg/cache/evoext-firstmerge-00
+  $ f -H .hg/cache/evoext-firstmerge-00
+  .hg/cache/evoext-firstmerge-00:
+  0000: 00 00 00 03 2b 6d 66 99 47 cd 52 4d 74 f4 3c 1b |....+mf.G.RMt.<.|
+  0010: 11 c7 84 85 89 70 7e ef ff ff ff ff ff ff ff ff |.....p~.........|
+  0020: ff ff ff ff 03 00 00 00                         |........|
+
+  $ hg debugfirstmergecache --debug
+  firstmergecache file seems to be corrupted, it will be rebuilt from scratch
+  1ea73414a91b -1
+  66f7d451a68b -1
+  fa942426a6fd -1
+  2b6d669947cd 3
+
+  $ "$PYTHON" ../truncate.py .hg/cache/evoext-firstmerge-00 -4
+  $ f -H .hg/cache/evoext-firstmerge-00
+  .hg/cache/evoext-firstmerge-00:
+  0000: 00 00 00 03 2b 6d 66 99 47 cd 52 4d 74 f4 3c 1b |....+mf.G.RMt.<.|
+  0010: 11 c7 84 85 89 70 7e ef ff ff ff ff ff ff ff ff |.....p~.........|
+  0020: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff |................|
+  0030: 03 00 00 00                                     |....|
+
+  $ hg debugfirstmergecache --debug
+  firstmergecache file seems to be corrupted, it will be rebuilt from scratch
+  1ea73414a91b -1
+  66f7d451a68b -1
+  fa942426a6fd -1
+  2b6d669947cd 3
+
+testing stablesortcache
+
+  $ f -H .hg/cache/evoext-stablesortcache-00
+  .hg/cache/evoext-stablesortcache-00:
+  0000: 00 00 00 03 2b 6d 66 99 47 cd 52 4d 74 f4 3c 1b |....+mf.G.RMt.<.|
+  0010: 11 c7 84 85 89 70 7e ef 00 00 00 20 00 00 00 00 |.....p~.... ....|
+  0020: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................|
+  0030: 00 00 00 00 01 00 00 00 00 00 00 00 02 00 00 00 |................|
+  0040: 00 00 00 00 01 00 00 00 00 00 00 00 02 00 00 00 |................|
+  0050: 00 00 00 00                                     |....|
+
+  $ hg debugstablesortcache --debug
+  number of revisions:            4
+  number of merge:                1
+  number of jumps:                1
+  average jumps:                  1.000
+  median jumps:                   1
+  90% jumps:                      1
+  99% jumps:                      1
+  max jumps:                      1
+  jump cache size:               12 bytes
+
+  $ "$PYTHON" ../truncate.py .hg/cache/evoext-stablesortcache-00 -4
+  $ f -H .hg/cache/evoext-stablesortcache-00
+  .hg/cache/evoext-stablesortcache-00:
+  0000: 00 00 00 03 2b 6d 66 99 47 cd 52 4d 74 f4 3c 1b |....+mf.G.RMt.<.|
+  0010: 11 c7 84 85 89 70 7e ef 00 00 00 20 00 00 00 00 |.....p~.... ....|
+  0020: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................|
+  0030: 00 00 00 00 01 00 00 00 00 00 00 00 02 00 00 00 |................|
+  0040: 00 00 00 00 01 00 00 00 00 00 00 00 02 00 00 00 |................|
+
+  $ hg debugstablesortcache --debug
+  number of revisions:            4
+  stablesortcache file seems to be corrupted, it will be rebuilt from scratch
+  number of merge:                1
+  number of jumps:                1
+  average jumps:                  1.000
+  median jumps:                   1
+  90% jumps:                      1
+  99% jumps:                      1
+  max jumps:                      1
+  jump cache size:               12 bytes
+
+  $ cd ..