view tests/test-evolve-issue6097.t @ 4825:9af212b8565a stable

evolve: test that target is not orig in _solveunstable() (issue6097)

`newer` is the result of obsutil.successorssets() and can be [[orig.node()]],
in which case later on in this function evolve will try to rebase orig onto
orig, which is not correct. So let's just check this particular case.

This fix doesn't cover cases when successorssets() result contains orig.node()
not at [0][0]. Such cases need tests.

Orphan changeset and trying to relocate a node on top of itself (issue6097)
https://bz.mercurial-scm.org/show_bug.cgi?id=6097

  $ . $TESTDIR/testlib/common.sh

  $ cat << EOF >> $HGRCPATH
  > [extensions]
  > rebase =
  > evolve =
  > EOF

  $ hg init issue6097
  $ cd issue6097

  $ echo apricot > a
  $ hg ci -qAm apricot

  $ echo banana > b
  $ hg ci -qAm banana

Let's go back to amend 0 and make an orphan out of 1

  $ hg up -q 0
  $ echo coconut > c
  $ hg add -q c
  $ hg ci --amend -m 'apricot and coconut'
  1 new orphan changesets

Now rebase the successor of 0 on top of 1

  $ hg rebase -r . -d 1
  rebasing 2:32acf8fb1b23 "apricot and coconut" (tip)
  1 new orphan changesets

Pruning 1 just to get it out of the way

  $ hg prune -q 1

Note how both the regular DAG and the obsolescence graph are linear, but the
paths from 3 to 0 are different: 3-1-0 and 3-2-0

  $ hg log -G
  @  changeset:   3:2868fe6df617
  |  tag:         tip
  |  parent:      1:e0486f65907d
  |  user:        test
  |  date:        Thu Jan 01 00:00:00 1970 +0000
  |  instability: orphan
  |  summary:     apricot and coconut
  |
  x  changeset:   1:e0486f65907d
  |  user:        test
  |  date:        Thu Jan 01 00:00:00 1970 +0000
  |  obsolete:    pruned using prune
  |  summary:     banana
  |
  x  changeset:   0:692cc7b6212c
     user:        test
     date:        Thu Jan 01 00:00:00 1970 +0000
     obsolete:    rewritten using amend, rebase as 3:2868fe6df617
     summary:     apricot
  

  $ hg obslog
  @  2868fe6df617 (3) apricot and coconut
  |
  x  32acf8fb1b23 (2) apricot and coconut
  |    rewritten(parent, content) as 2868fe6df617 using rebase by test (Thu Jan 01 00:00:00 1970 +0000)
  |
  x  692cc7b6212c (0) apricot
       rewritten(description, content) as 32acf8fb1b23 using amend by test (Thu Jan 01 00:00:00 1970 +0000)
  

  $ hg evolve -r .
  move:[3] apricot and coconut
  atop:[-1] 
  working directory is now at bb847d1d3a5f

  $ hg log -G
  @  changeset:   4:bb847d1d3a5f
     tag:         tip
     parent:      -1:000000000000
     user:        test
     date:        Thu Jan 01 00:00:00 1970 +0000
     summary:     apricot and coconut
  

  $ hg obslog
  @  bb847d1d3a5f (4) apricot and coconut
  |
  x  2868fe6df617 (3) apricot and coconut
  |    rewritten(parent) as bb847d1d3a5f using evolve by test (Thu Jan 01 00:00:00 1970 +0000)
  |
  x  32acf8fb1b23 (2) apricot and coconut
  |    rewritten(parent, content) as 2868fe6df617 using rebase by test (Thu Jan 01 00:00:00 1970 +0000)
  |
  x  692cc7b6212c (0) apricot
       rewritten(description, content) as 32acf8fb1b23 using amend by test (Thu Jan 01 00:00:00 1970 +0000)