Test for issue 5881 present at https://bz.mercurial-scm.org/show_bug.cgi?id=5881

===============================================================================

which is about that if the working copy parent  is obsolete then evolve update

to its successor revision and stop; it doesn't continue to evolve remaining

revisions those were suppossed to evovle.

Setup

=====

  $ cat >> $HGRCPATH <<EOF

  > [phases]

  > publish = False

  > [alias]

  > glog = log -GT "{rev}:{node|short} {desc}\n ({bookmarks}) {phase}"

  > [extensions]

  > EOF

  $ echo "evolve=$(echo $(dirname $TESTDIR))/hgext3rd/evolve/" >> $HGRCPATH

  $ hg init issue5881

  $ cd issue5881

Prepare the directory by creating an orphan and update to its obsolete parent:

  $ for ch in a b c; do echo $ch > $ch; hg ci -Am "added "$ch; done;

  adding a

  adding b

  adding c

  $ hg up 1 -q

  $ hg ci --amend -m "updated b"

  1 new orphan changesets

  $ hg up 1

  0 files updated, 0 files merged, 0 files removed, 0 files unresolved

  working directory parent is obsolete! (5f6d8a4bf34a)

  (use 'hg evolve' to update to its successor: e6048a693c0d)

  $ hg glog

  o  3:e6048a693c0d updated b

  |   () draft

  | *  2:155349b645be added c

  | |   () draft

  | @  1:5f6d8a4bf34a added b

  |/    () draft

  o  0:9092f1db7931 added a

      () draft

Test `hg evolve` evolve all the revisions specified by user:

(XXX:it stops after updating to its successor and don't evolve next revision,

it will fixed in next patch)

  $ hg evolve -r .::

  update:[3] updated b

  0 files updated, 0 files merged, 0 files removed, 0 files unresolved

  working directory is now at e6048a693c0d