view tests/test-evolve-orphan-corner-cases.t @ 5581:36ccafa69095

discovery: list the new heads like core does when failing a multi-head push

The message was, and still is slightly different from core (which mentions
'remote' heads).  But it's probably useful to have slightly different messages
so that we can easily determine the source.

=======================================================
Tests the resolution of orphan changesets: corner cases
=======================================================

Setup
=====
  $ cat >> $HGRCPATH <<EOF
  > [alias]
  > glog = log -GT "{rev}:{node|short} {desc|firstline}\n {phase} {troubles}\n\n"
  > [phases]
  > publish = False
  > [extensions]
  > rebase =
  > EOF
  $ echo "evolve=$(echo $(dirname $TESTDIR))/hgext3rd/evolve/" >> $HGRCPATH

  $ glog() {
  >   hg log -G --template '{rev}:{node|short}@{branch}({phase}) {desc|firstline}\n' "$@"
  > }

Test to make sure that `lastsolved` always has correct value and things don't break:
------------------------------------------------------------------------------------
(before we were not updating it in case of orphan merge)

Prepare the repo:
  $ hg init orphanmergerepo
  $ cd orphanmergerepo
  $ for fn in a b c; do echo foo > $fn; hg ci -Am "added "$fn; done;
  adding a
  adding b
  adding c
Let's create a merge commit so that we can create orphan merge later:
  $ hg up 1 -q
  $ echo feature > f
  $ hg ci -Am "added feature f"
  adding f
  created new head
  $ hg merge
  1 files updated, 0 files merged, 0 files removed, 0 files unresolved
  (branch merge, don't forget to commit)
  $ hg ci -m "merge feature branch"
  $ glog
  @    4:2c0a98d38026@default(draft) merge feature branch
  |\
  | o  3:4c33e511041e@default(draft) added feature f
  | |
  o |  2:8be98ac1a569@default(draft) added c
  |/
  o  1:80e6d2c47cfe@default(draft) added b
  |
  o  0:f7ad41964313@default(draft) added a
  

Now make the parents of merge commit obsolete to get a orphan merge:
  $ hg up 2 -q
  $ echo "fixit" > c
  $ hg ci --amend -m "updated c"
  1 new orphan changesets
  $ hg up 3 -q
  $ echo "fixit" > c
  $ hg ci --amend -m "updated f"
  $ glog
  @  6:086d9bedcd75@default(draft) updated f
  |
  | o  5:f84f2c548fbc@default(draft) updated c
  |/
  | *    4:2c0a98d38026@default(draft) merge feature branch
  | |\
  +---x  3:4c33e511041e@default(draft) added feature f
  | |
  | x  2:8be98ac1a569@default(draft) added c
  |/
  o  1:80e6d2c47cfe@default(draft) added b
  |
  o  0:f7ad41964313@default(draft) added a
  

To check `lastsolved` contain right value after completion of orphan-merge
resolution there should be one more instability to be evolved; lets create one:
  $ hg up 1 -q
  $ echo d > d
  $ hg ci -Am "added d"
  adding c
  adding d
  created new head
  $ echo e > e
  $ hg ci -Am "added e"
  adding e
  $ hg up .^
  0 files updated, 0 files merged, 1 files removed, 0 files unresolved
  $ echo "updated d" >> d
  $ hg ci --amend -m "updated d"
  1 new orphan changesets
  $ glog
  @  9:7c4d1834c346@default(draft) updated d
  |
  | *  8:421f7614462a@default(draft) added e
  | |
  | x  7:afe5acea1990@default(draft) added d
  |/
  | o  6:086d9bedcd75@default(draft) updated f
  |/
  | o  5:f84f2c548fbc@default(draft) updated c
  |/
  | *    4:2c0a98d38026@default(draft) merge feature branch
  | |\
  +---x  3:4c33e511041e@default(draft) added feature f
  | |
  | x  2:8be98ac1a569@default(draft) added c
  |/
  o  1:80e6d2c47cfe@default(draft) added b
  |
  o  0:f7ad41964313@default(draft) added a
  
Now we have one orphan merge and one more orphan cset that we just created.
Lets evolve:
  $ hg evolve --all --any
  move:[4] merge feature branch
  atop:[5] updated c
  move:[10] merge feature branch
  atop:[6] updated f
  move:[8] added e
  atop:[9] updated d