Mercurial > hg-stable
changeset 45220:5a555d6e0d90 stable
tests: demonstrate crash caused by pinning of non-existent mergestate node
If the mergestate somehow contains a reference to a non-existent node,
it causes most commands to crash since aaeccdb6e654 (repoview: pin
revisions for `local` and `other` when a merge is active,
2020-09-04). This patch adds a test showing that.
Differential Revision: https://phab.mercurial-scm.org/D9077
| author | Martin von Zweigbergk <martinvonz@google.com> |
|---|---|
| date | Wed, 23 Sep 2020 16:07:14 -0700 |
| parents | 2bc978921e8a |
| children | 5ed6efedc457 |
| files | tests/test-obsolete.t |
| diffstat | 1 files changed, 41 insertions(+), 0 deletions(-) [+] |
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--- a/tests/test-obsolete.t Fri Sep 18 12:20:28 2020 +0200 +++ b/tests/test-obsolete.t Wed Sep 23 16:07:14 2020 -0700 @@ -1790,3 +1790,44 @@ d1b09fe3ad2b2a03e23a72f0c582e29a49570145 1a1a11184d2588af24e767e5335d5d9d07e8c550 0 (Thu Jan 01 00:00:00 1970 +0000) {'ef1': '8', 'note': 'Testing::Obsstore', 'operation': 'amend', 'user': 'test'} 1bfd8e3868f641e048b6667cd672c68932f26d00 79959ca316d5b27ac6be1dd0cfd0843a5b5412eb 0 (Thu Jan 01 00:00:00 1970 +0000) {'ef1': '8', 'note': 'Testing::Obsstore2', 'operation': 'amend', 'user': 'test'} $ cd .. + +Test that pinning of revisions in broken mergestate doesn't cause crash + + $ hg init pinning-broken-mergestate + $ cd pinning-broken-mergestate + $ echo a > file + $ hg ci -Aqm first +Create a pruned commit so pinning comes into play + $ echo pruned > pruned + $ hg ci -Aqm pruned + $ hg co -q 0 + $ hg debugobsolete $(getid pruned) + 1 new obsolescence markers + obsoleted 1 changesets +Back up changelog, so we can restore it later after causing merge conflicts +with it, thus ending up with mergestate that points to a non-existent commit + $ cp .hg/store/00changelog.i .hg/store/00changelog.i.first + $ echo b > file + $ hg ci -qm second + $ echo c > file + $ hg co -m 0 + merging file + warning: conflicts while merging file! (edit, then use 'hg resolve --mark') + 0 files updated, 0 files merged, 0 files removed, 1 files unresolved + use 'hg resolve' to retry unresolved file merges + [1] + $ mv -f .hg/store/00changelog.i.first .hg/store/00changelog.i +The local node should now point to a non-existent commit + $ hg debugmergestate + local (working copy): b73b8c9a4ab4da89a5a35a6f10dfb13edc84ca37 + other (destination): f53e9479dce52f79c923908241fa54f7da90a7ad + file: file (state "u") + local path: file (hash 971c419dd609331343dee105fffd0f4608dc0bf2, flags "") + ancestor path: file (node bc7ebe2d260cff30d2a39a130d84add36216f791) + other path: file (node b789fdd96dc2f3bd229c1dd8eedf0fc60e2b68e3) + extra: ancestorlinknode = b73b8c9a4ab4da89a5a35a6f10dfb13edc84ca37 +BROKEN: We should be able to see the log (without the deleted commit, of course) + $ hg log -G + abort: unknown revision 'b73b8c9a4ab4da89a5a35a6f10dfb13edc84ca37'! + [255] + $ cd ..