=================================================================
This files test the proper behavior of evo during merge conflict.
=================================================================

Initial setup

  $ cat >> $HGRCPATH <<EOF
  > [ui]
  > interactive=false
  > merge=internal:merge
  > [defaults]
  > amend=-d "0 0"
  > [merge-tools]
  > touch.checkchanged=true
  > touch.gui=true
  > touch.args=babar
  > [extensions]
  > hgext.rebase=
  > EOF
  $ echo "evolve=$(echo $(dirname $TESTDIR))/hgext/evolve.py" >> $HGRCPATH


create a simple repo

  $ hg init repo
  $ cd repo
  $ cat << EOF > babar
  > un
  > deux
  > trois
  > quatre
  > cinq
  > EOF
  $ hg add babar
  $ hg commit -m "babar count up to five"
  $ cat << EOF >> babar
  > six
  > sept
  > huit
  > neuf
  > dix
  > EOF
  $ hg commit -m "babar count up to ten"
  $ cat << EOF >> babar
  > onze
  > douze
  > treize
  > quatorze
  > quinze
  > EOF
  $ hg commit -m "babar count up to fifteen"


proper behavior without conflict
----------------------------------

  $ hg gdown
  1 files updated, 0 files merged, 0 files removed, 0 files unresolved
  [1] babar count up to ten
  $ sed -i'' 's/huit/height/' babar
  $ hg diff
  diff -r 9d5daf8bd956 babar
  --- a/babar	Thu Jan 01 00:00:00 1970 +0000
  +++ b/babar	* (glob)
  @@ -5,6 +5,6 @@
   cinq
   six
   sept
  -huit
  +height
   neuf
   dix
  $ hg amend
  1 new unstable changesets
  $ hg evolve
  move:[2] babar count up to fifteen
  atop:[4] babar count up to ten
  merging babar
  $ hg resolve -l
  $ hg log -G
  @  changeset:   5:fd62611d0178
  |  tag:         tip
  |  user:        test
  |  date:        Thu Jan 01 00:00:00 1970 +0000
  |  summary:     babar count up to fifteen
  |
  o  changeset:   4:83066dedff55
  |  parent:      0:29ec1554cfaf
  |  user:        test
  |  date:        Thu Jan 01 00:00:00 1970 +0000
  |  summary:     babar count up to ten
  |
  o  changeset:   0:29ec1554cfaf
     user:        test
     date:        Thu Jan 01 00:00:00 1970 +0000
     summary:     babar count up to five
  


proper behavior with conflict using internal:merge
--------------------------------------------------

  $ hg gdown
  1 files updated, 0 files merged, 0 files removed, 0 files unresolved
  [4] babar count up to ten
  $ sed -i'' 's/dix/ten/' babar
  $ hg diff
  diff -r 83066dedff55 babar
  --- a/babar	Thu Jan 01 00:00:00 1970 +0000
  +++ b/babar	* (glob)
  @@ -7,4 +7,4 @@
   sept
   height
   neuf
  -dix
  +ten
  $ hg amend
  1 new unstable changesets
  $ hg evolve
  move:[5] babar count up to fifteen
  atop:[7] babar count up to ten
  merging babar
  warning: conflicts during merge.
  merging babar incomplete! (edit conflicts, then use 'hg resolve --mark')
  evolve failed!
  fix conflict and run "hg evolve --continue"
  abort: unresolved merge conflicts (see hg help resolve)
  [255]
  $ hg resolve -l
  U babar
  $ hg log -G
  @  changeset:   7:cc96f75eae0b
  |  tag:         tip
  |  parent:      0:29ec1554cfaf
  |  user:        test
  |  date:        Thu Jan 01 00:00:00 1970 +0000
  |  summary:     babar count up to ten
  |
  | @  changeset:   5:fd62611d0178
  | |  user:        test
  | |  date:        Thu Jan 01 00:00:00 1970 +0000
  | |  summary:     babar count up to fifteen
  | |
  | x  changeset:   4:83066dedff55
  |/   parent:      0:29ec1554cfaf
  |    user:        test
  |    date:        Thu Jan 01 00:00:00 1970 +0000
  |    summary:     babar count up to ten
  |
  o  changeset:   0:29ec1554cfaf
     user:        test
     date:        Thu Jan 01 00:00:00 1970 +0000
     summary:     babar count up to five
  
(fix the conflict and continue)

  $ hg revert -r 5 --all
  reverting babar
  $ sed -i'' 's/dix/ten/' babar
  $ hg resolve --all -m
  $ hg evolve --continue
  grafting revision 5
  $ hg resolve -l
  $ hg log -G
  @  changeset:   8:ce7ee8fecf30
  |  tag:         tip
  |  user:        test
  |  date:        Thu Jan 01 00:00:00 1970 +0000
  |  summary:     babar count up to fifteen
  |
  o  changeset:   7:cc96f75eae0b
  |  parent:      0:29ec1554cfaf
  |  user:        test
  |  date:        Thu Jan 01 00:00:00 1970 +0000
  |  summary:     babar count up to ten
  |
  o  changeset:   0:29ec1554cfaf
     user:        test
     date:        Thu Jan 01 00:00:00 1970 +0000
     summary:     babar count up to five
  
proper behavior with conflict using an external merge tools
-----------------------------------------------------------

  $ sed -i'' 's/merge=.*/merge=touch/' $HGRCPATH
  $ sed -i'' 's/touch.gui=.*/touch.gui=false/' $HGRCPATH
  $ hg gdown
  1 files updated, 0 files merged, 0 files removed, 0 files unresolved
  [7] babar count up to ten
  $ sed -i'' 's/ten/zehn/' babar
  $ hg diff
  diff -r cc96f75eae0b babar
  --- a/babar	Thu Jan 01 00:00:00 1970 +0000
  +++ b/babar	* (glob)
  @@ -7,4 +7,4 @@
   sept
   height
   neuf
  -ten
  +zehn
  $ hg amend
  1 new unstable changesets
  $ sed -i'' 's/interactive=.*/interactive=true/' $HGRCPATH
  $ yes n 2> ../shutup | HGMERGE=touch hg evolve
  move:[8] babar count up to fifteen
  atop:[10] babar count up to ten
  merging babar
   output file babar appears unchanged
  was merge successful (yn)? merging babar failed!
  evolve failed!
  fix conflict and run "hg evolve --continue"
  abort: unresolved merge conflicts (see hg help resolve)
  [255]
  $ hg resolve -l
  U babar
  $ hg log -G
  @  changeset:   10:02c637e61375
  |  tag:         tip
  |  parent:      0:29ec1554cfaf
  |  user:        test
  |  date:        Thu Jan 01 00:00:00 1970 +0000
  |  summary:     babar count up to ten
  |
  | @  changeset:   8:ce7ee8fecf30
  | |  user:        test
  | |  date:        Thu Jan 01 00:00:00 1970 +0000
  | |  summary:     babar count up to fifteen
  | |
  | x  changeset:   7:cc96f75eae0b
  |/   parent:      0:29ec1554cfaf
  |    user:        test
  |    date:        Thu Jan 01 00:00:00 1970 +0000
  |    summary:     babar count up to ten
  |
  o  changeset:   0:29ec1554cfaf
     user:        test
     date:        Thu Jan 01 00:00:00 1970 +0000
     summary:     babar count up to five
  
  $ cat babar
  un
  deux
  trois
  quatre
  cinq
  six
  sept
  height
  neuf
  zehn