view tests/test-exchange-obsmarkers-case-C4.t @ 5926:aca07ac01167

divergence-resolution: use last evolution date to choose p1 when merging

Before this patch, we choose the minimum revision as p1 while merging the
two divergent csets which had a drawback that if independent user resolve
the same divergence, their final resolved cset would have different hashes
(because of 'divergence_source_local' and 'divergence_source_other' extras).

Now, we decide the p1 on the basis of which of the two divergent cset
was rewritten more recently. This new logic removes the "different hash"
problem.

To save us from big output changes in the tests due to this change, I also
added the second factor i.e revision_number while sorting the csets wrt dates
(as date is same for all the csets in tests) to fallback to the old way of
picking the revision i.e choosing the minimum rev number.

And to demonstrate that now divergence resolution is independent of which
side user run the `hg evolve --content-div` resolved cset id won't change,
I have added a separate test file.
Flag --config devel.default-date='...' is being used here to record a
custom date in the obsmarkers.

============================================
Testing obsolescence markers push: Cases C.4
============================================

Mercurial pushes obsolescences markers relevant to the "pushed-set", the set of
all changesets that requested to be "in sync" after the push (even if they are
already on both side).

This test belongs to a series of tests checking such set is properly computed
and applied. This does not tests "obsmarkers" discovery capabilities.

Category C: advanced case
TestCase 4: multiple successors, one is pruned

C.4 multiple successors, one is pruned
======================================

.. (A similarish situation can appends with split markers see the Z section)
..
.. {{{
..        A
..    B ○⇢ø⇠⊗ C
..       \|/
..        ● O
.. }}}
..
.. Marker exist from:
..
..  * `A ø⇠○ B`
..  * `A ø⇠○ C`
..  * C (prune)
..
.. Command run:
..
..  * hg push -r O
..
.. Expected exchange:
..
..  * `A ø⇠○ C`
..  * C (prune)
..
.. Expected exclude:
..
..  * `A ø⇠○ B`

Setup
-----

  $ . $TESTDIR/testlib/exchange-obsmarker-util.sh

Implemented as the non-split version

  $ setuprepos C.4
  creating test repo for test case C.4
  - pulldest
  - main
  - pushdest
  cd into `main` and proceed with env setup
  $ cd main
  $ mkcommit A
  $ hg update -q 0
  $ mkcommit B
  created new head
  $ hg update -q 0
  $ mkcommit C
  created new head
  $ hg debugobsolete --hidden `getid 'desc(A)'` `getid 'desc(B)'`
  1 new obsolescence markers
  obsoleted 1 changesets
  $ hg debugobsolete --hidden `getid 'desc(A)'` `getid 'desc(C)'`
  1 new obsolescence markers
  2 new content-divergent changesets
  $ hg prune -qd '0 0' .
  $ hg log -G --hidden
  x  7f7f229b13a6 (draft): C
  |
  | o  35b183996678 (draft): B
  |/
  | x  f5bc6836db60 (draft): A
  |/
  @  a9bdc8b26820 (public): O
  
  $ inspect_obsmarkers
  obsstore content
  ================
  f5bc6836db60e308a17ba08bf050154ba9c4fad7 35b1839966785d5703a01607229eea932db42f87 0 (Thu Jan 01 00:00:00 1970 +0000) {'user': 'test'}
  f5bc6836db60e308a17ba08bf050154ba9c4fad7 7f7f229b13a629a5b20581c6cb723f4e2ca54bed 0 (Thu Jan 01 00:00:00 1970 +0000) {'user': 'test'}
  7f7f229b13a629a5b20581c6cb723f4e2ca54bed 0 {a9bdc8b26820b1b87d585b82eb0ceb4a2ecdbc04} (Thu Jan 01 00:00:00 1970 +0000) {'ef1': '0', 'operation': 'prune', 'user': 'test'}
  obshashtree
  ===========
  a9bdc8b26820b1b87d585b82eb0ceb4a2ecdbc04 b1f2c573306eb5571ada89451c2593ca02f4afc6
  f5bc6836db60e308a17ba08bf050154ba9c4fad7 c83c59a98479a18fc374e728b49bc3d3645b6b60
  35b1839966785d5703a01607229eea932db42f87 2e7cea6704fcadaf5df996b02b964a6beeacd696
  7f7f229b13a629a5b20581c6cb723f4e2ca54bed d4deb08dfd42d62519b7e31e4a68183c937551bc
  obshashrange
  ============
           rev         node        index         size        depth      obshash
             2 35b183996678            0            2            2 8a9f1f393179
             2 35b183996678            1            1            2 916e804c50de
             0 a9bdc8b26820            0            1            1 b1f2c573306e
  $ cd ..
  $ cd ..

Actual Test
-----------

  $ dotest C.4 O
  ## Running testcase C.4
  # testing echange of "O" (a9bdc8b26820)
  ## initial state
  # obstore: main
  7f7f229b13a629a5b20581c6cb723f4e2ca54bed 0 {a9bdc8b26820b1b87d585b82eb0ceb4a2ecdbc04} (Thu Jan 01 00:00:00 1970 +0000) {'ef1': '0', 'operation': 'prune', 'user': 'test'}
  f5bc6836db60e308a17ba08bf050154ba9c4fad7 35b1839966785d5703a01607229eea932db42f87 0 (Thu Jan 01 00:00:00 1970 +0000) {'user': 'test'}
  f5bc6836db60e308a17ba08bf050154ba9c4fad7 7f7f229b13a629a5b20581c6cb723f4e2ca54bed 0 (Thu Jan 01 00:00:00 1970 +0000) {'user': 'test'}
  # obstore: pushdest
  # obstore: pulldest
  ## pushing "O" from main to pushdest
  pushing to pushdest
  searching for changes
  no changes found
  remote: 2 new obsolescence markers
  ## post push state
  # obstore: main
  7f7f229b13a629a5b20581c6cb723f4e2ca54bed 0 {a9bdc8b26820b1b87d585b82eb0ceb4a2ecdbc04} (Thu Jan 01 00:00:00 1970 +0000) {'ef1': '0', 'operation': 'prune', 'user': 'test'}
  f5bc6836db60e308a17ba08bf050154ba9c4fad7 35b1839966785d5703a01607229eea932db42f87 0 (Thu Jan 01 00:00:00 1970 +0000) {'user': 'test'}
  f5bc6836db60e308a17ba08bf050154ba9c4fad7 7f7f229b13a629a5b20581c6cb723f4e2ca54bed 0 (Thu Jan 01 00:00:00 1970 +0000) {'user': 'test'}
  # obstore: pushdest
  7f7f229b13a629a5b20581c6cb723f4e2ca54bed 0 {a9bdc8b26820b1b87d585b82eb0ceb4a2ecdbc04} (Thu Jan 01 00:00:00 1970 +0000) {'ef1': '0', 'operation': 'prune', 'user': 'test'}
  f5bc6836db60e308a17ba08bf050154ba9c4fad7 7f7f229b13a629a5b20581c6cb723f4e2ca54bed 0 (Thu Jan 01 00:00:00 1970 +0000) {'user': 'test'}
  # obstore: pulldest
  ## pulling "a9bdc8b26820" from main into pulldest
  pulling from main
  no changes found
  2 new obsolescence markers
  ## post pull state
  # obstore: main
  7f7f229b13a629a5b20581c6cb723f4e2ca54bed 0 {a9bdc8b26820b1b87d585b82eb0ceb4a2ecdbc04} (Thu Jan 01 00:00:00 1970 +0000) {'ef1': '0', 'operation': 'prune', 'user': 'test'}
  f5bc6836db60e308a17ba08bf050154ba9c4fad7 35b1839966785d5703a01607229eea932db42f87 0 (Thu Jan 01 00:00:00 1970 +0000) {'user': 'test'}
  f5bc6836db60e308a17ba08bf050154ba9c4fad7 7f7f229b13a629a5b20581c6cb723f4e2ca54bed 0 (Thu Jan 01 00:00:00 1970 +0000) {'user': 'test'}
  # obstore: pushdest
  7f7f229b13a629a5b20581c6cb723f4e2ca54bed 0 {a9bdc8b26820b1b87d585b82eb0ceb4a2ecdbc04} (Thu Jan 01 00:00:00 1970 +0000) {'ef1': '0', 'operation': 'prune', 'user': 'test'}
  f5bc6836db60e308a17ba08bf050154ba9c4fad7 7f7f229b13a629a5b20581c6cb723f4e2ca54bed 0 (Thu Jan 01 00:00:00 1970 +0000) {'user': 'test'}
  # obstore: pulldest
  7f7f229b13a629a5b20581c6cb723f4e2ca54bed 0 {a9bdc8b26820b1b87d585b82eb0ceb4a2ecdbc04} (Thu Jan 01 00:00:00 1970 +0000) {'ef1': '0', 'operation': 'prune', 'user': 'test'}
  f5bc6836db60e308a17ba08bf050154ba9c4fad7 7f7f229b13a629a5b20581c6cb723f4e2ca54bed 0 (Thu Jan 01 00:00:00 1970 +0000) {'user': 'test'}