Mercurial > hg
annotate tests/test-racy-mutations.t @ 48518:8e8737a1fa7d
hg-cpython: implement vcsgraph::Graph for our Index
Differential Revision: https://phab.mercurial-scm.org/D11946
author | pacien <pacien.trangirard@pacien.net> |
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date | Fri, 10 Dec 2021 15:27:22 +0100 |
parents | 906a7bcaac86 |
children | bd752712ccaf |
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1 #testcases skip-detection fail-if-detected |
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2 |
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3 Test situations that "should" only be reproducible: |
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4 - on networked filesystems, or |
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5 - user using `hg debuglocks` to eliminate the lock file, or |
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6 - something (that doesn't respect the lock file) writing to the .hg directory |
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7 while we're running |
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8 |
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9 $ hg init a |
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10 $ cd a |
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11 |
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12 $ cat > "$TESTTMP/waitlock_editor.sh" <<EOF |
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13 > [ -n "\${WAITLOCK_ANNOUNCE:-}" ] && touch "\${WAITLOCK_ANNOUNCE}" |
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14 > f="\${WAITLOCK_FILE}" |
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15 > start=\`date +%s\` |
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16 > timeout=5 |
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17 > while [ \\( ! -f \$f \\) -a \\( ! -L \$f \\) ]; do |
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18 > now=\`date +%s\` |
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19 > if [ "\`expr \$now - \$start\`" -gt \$timeout ]; then |
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20 > echo "timeout: \$f was not created in \$timeout seconds (it is now \$(date +%s))" |
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21 > exit 1 |
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22 > fi |
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23 > sleep 0.1 |
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24 > done |
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25 > if [ \$# -gt 1 ]; then |
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26 > cat "\$@" |
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27 > fi |
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28 > EOF |
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29 |
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30 Things behave differently if we don't already have a 00changelog.i file when |
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31 this all starts, so let's make one. |
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32 |
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33 $ echo r0 > r0 |
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34 $ hg commit -qAm 'r0' |
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35 |
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36 Start an hg commit that will take a while |
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37 $ EDITOR_STARTED="$(pwd)/.editor_started" |
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38 $ MISCHIEF_MANAGED="$(pwd)/.mischief_managed" |
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39 $ JOBS_FINISHED="$(pwd)/.jobs_finished" |
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40 |
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41 #if fail-if-detected |
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42 $ cat >> .hg/hgrc << EOF |
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43 > [debug] |
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44 > revlog.verifyposition.changelog = fail |
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45 > EOF |
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46 #endif |
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47 |
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48 $ echo foo > foo |
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49 $ (WAITLOCK_ANNOUNCE="${EDITOR_STARTED}" \ |
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50 > WAITLOCK_FILE="${MISCHIEF_MANAGED}" \ |
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51 > HGEDITOR="sh $TESTTMP/waitlock_editor.sh" \ |
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52 > hg commit -qAm 'r1 (foo)' --edit foo > .foo_commit_out 2>&1 ; touch "${JOBS_FINISHED}") & |
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53 |
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54 Wait for the "editor" to actually start |
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55 $ WAITLOCK_FILE="${EDITOR_STARTED}" sh "$TESTTMP/waitlock_editor.sh" |
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56 |
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57 Break the locks, and make another commit. |
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58 $ hg debuglocks -LW |
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59 $ echo bar > bar |
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60 $ hg commit -qAm 'r2 (bar)' bar |
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61 $ hg debugrevlogindex -c |
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62 rev linkrev nodeid p1 p2 |
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63 0 0 222799e2f90b 000000000000 000000000000 |
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64 1 1 6f124f6007a0 222799e2f90b 000000000000 |
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65 |
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66 Awaken the editor from that first commit |
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67 $ touch "${MISCHIEF_MANAGED}" |
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68 And wait for it to finish |
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69 $ WAITLOCK_FILE="${JOBS_FINISHED}" sh "$TESTTMP/waitlock_editor.sh" |
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70 |
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71 #if skip-detection |
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72 (Ensure there was no output) |
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73 $ cat .foo_commit_out |
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74 And observe a corrupted repository -- rev 2's linkrev is 1, which should never |
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75 happen for the changelog (the linkrev should always refer to itself). |
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76 $ hg debugrevlogindex -c |
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77 rev linkrev nodeid p1 p2 |
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78 0 0 222799e2f90b 000000000000 000000000000 |
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79 1 1 6f124f6007a0 222799e2f90b 000000000000 |
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80 2 1 ac80e6205bb2 222799e2f90b 000000000000 |
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81 #endif |
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82 |
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83 #if fail-if-detected |
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84 $ cat .foo_commit_out |
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85 transaction abort! |
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86 rollback completed |
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87 note: commit message saved in .hg/last-message.txt |
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88 note: use 'hg commit --logfile .hg/last-message.txt --edit' to reuse it |
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89 abort: 00changelog.i: file cursor at position 249, expected 121 |
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90 And no corruption in the changelog. |
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91 $ hg debugrevlogindex -c |
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92 rev linkrev nodeid p1 p2 |
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93 0 0 222799e2f90b 000000000000 000000000000 |
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94 1 1 6f124f6007a0 222799e2f90b 000000000000 (missing-correct-output !) |
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95 And, because of transactions, there's none in the manifestlog either. |
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96 $ hg debugrevlogindex -m |
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97 rev linkrev nodeid p1 p2 |
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98 0 0 7b7020262a56 000000000000 000000000000 |
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99 1 1 ad3fe36d86d9 7b7020262a56 000000000000 |
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100 #endif |
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101 |