view tests/test-evolve-obshistory-phase-divergent.t @ 6224:17ffdea0edbb stable

evolve: look for split successors of the correct ancestor (issue6648)

Consider two changesets, 1 and 2. 1 is split into two new changesets and 2 is
pruned. If we stand on 2 and call hg evolve, _singlesuccessor() will traverse
ancestors of wdp in search of a changeset with successors to update to (it will
be 1, which was split). In case of a split, select_split_successor() gets
control. The issue is this function didn't traverse ancestors, and instead
tried to look up successors of the original changeset (i.e. 2 in our case,
which was pruned).

We can make select_split_successor() aware of _singlesuccessor() logic by using
the changeset that actually has successors without traversing ancestors again.
It's done by storing that changeset in MultipleSuccessorsError exception.

Testing obslog and other commands accessing obsolete revisions.

Global setup
============

  $ . $TESTDIR/testlib/obshistory_setup.sh

Test output with phase-divergence
=================================

Test setup
----------

  $ hg init $TESTTMP/phase-divergence
  $ cd $TESTTMP/phase-divergence
  $ mkcommit ROOT
  $ mkcommit A0
  $ hg amend -m "A1"
  $ hg log --hidden -G
  @  changeset:   2:fdf9bde5129a
  |  tag:         tip
  |  parent:      0:ea207398892e
  |  user:        test
  |  date:        Thu Jan 01 00:00:00 1970 +0000
  |  summary:     A1
  |
  | x  changeset:   1:471f378eab4c
  |/   user:        test
  |    date:        Thu Jan 01 00:00:00 1970 +0000
  |    obsolete:    reworded using amend as 2:fdf9bde5129a
  |    summary:     A0
  |
  o  changeset:   0:ea207398892e
     user:        test
     date:        Thu Jan 01 00:00:00 1970 +0000
     summary:     ROOT
  
  $ hg update --hidden 'desc(A0)'
  0 files updated, 0 files merged, 0 files removed, 0 files unresolved
  updated to hidden changeset 471f378eab4c
  (hidden revision '471f378eab4c' was rewritten as: fdf9bde5129a)
  working directory parent is obsolete! (471f378eab4c)
  (use 'hg evolve' to update to its successor: fdf9bde5129a)
  $ hg phase -p .
  1 new phase-divergent changesets
  $ hg log --hidden -G
  *  changeset:   2:fdf9bde5129a
  |  tag:         tip
  |  parent:      0:ea207398892e
  |  user:        test
  |  date:        Thu Jan 01 00:00:00 1970 +0000
  |  instability: phase-divergent
  |  summary:     A1
  |
  | @  changeset:   1:471f378eab4c
  |/   user:        test
  |    date:        Thu Jan 01 00:00:00 1970 +0000
  |    summary:     A0
  |
  o  changeset:   0:ea207398892e
     user:        test
     date:        Thu Jan 01 00:00:00 1970 +0000
     summary:     ROOT
  
Actual test
-----------

Check that obslog on the public revision shows both public (diverged) and draft (divergent) revisions
  $ hg obslog --hidden 471f378eab4c --patch --no-origin
  @  471f378eab4c (1) A0
       reworded(description) as fdf9bde5129a using amend by test (Thu Jan 01 00:00:00 1970 +0000)
         diff -r 471f378eab4c -r fdf9bde5129a changeset-description
         --- a/changeset-description
         +++ b/changeset-description
         @@ -1,1 +1,1 @@
         -A0
         +A1
  
  

Check that with all option, every changeset is shown
  $ hg obslog --hidden --all 471f378eab4c --patch --no-origin
  *  fdf9bde5129a (2) A1
  |
  @  471f378eab4c (1) A0
       reworded(description) as fdf9bde5129a using amend by test (Thu Jan 01 00:00:00 1970 +0000)
         diff -r 471f378eab4c -r fdf9bde5129a changeset-description
         --- a/changeset-description
         +++ b/changeset-description
         @@ -1,1 +1,1 @@
         -A0
         +A1
  
  
  $ hg obslog --hidden --all 471f378eab4c --patch
  *  fdf9bde5129a (2) A1
  |    reworded(description) from 471f378eab4c using amend by test (Thu Jan 01 00:00:00 1970 +0000)
  |      diff -r 471f378eab4c -r fdf9bde5129a changeset-description
  |      --- a/changeset-description
  |      +++ b/changeset-description
  |      @@ -1,1 +1,1 @@
  |      -A0
  |      +A1
  |
  |
  @  471f378eab4c (1) A0
  
  $ hg obslog --hidden 471f378eab4c --no-graph --no-origin -Tjson | "$PYTHON" -m json.tool
  [
      {
          "markers": [
              {
                  "dates": [
                      [
                          *, (glob)
                          0
                      ]
                  ],
                  "effects": [
                      "description"
                  ],
                  "operations": [
                      "amend"
                  ],
                  "succnodes": [
                      "fdf9bde5129a28d4548fadd3f62b265cdd3b7a2e"
                  ],
                  "users": [
                      "test"
                  ],
                  "verb": "reworded"
              }
          ],
          "node": "471f378eab4c5e25f6c77f785b27c936efb22874",
          "shortdescription": "A0"
      }
  ]
  $ hg obslog --hidden 471f378eab4c --no-graph -Tjson | "$PYTHON" -m json.tool
  [
      {
          "markers": [],
          "node": "471f378eab4c5e25f6c77f785b27c936efb22874",
          "shortdescription": "A0"
      }
  ]
Check that obslog on the draft (divergent) revision also shows public (diverged) revision
  $ hg obslog fdf9bde5129a --patch
  *  fdf9bde5129a (2) A1
  |    reworded(description) from 471f378eab4c using amend by test (Thu Jan 01 00:00:00 1970 +0000)
  |      diff -r 471f378eab4c -r fdf9bde5129a changeset-description
  |      --- a/changeset-description
  |      +++ b/changeset-description
  |      @@ -1,1 +1,1 @@
  |      -A0
  |      +A1
  |
  |
  @  471f378eab4c (1) A0
  

Check that all option shows all of them
  $ hg obslog fdf9bde5129a -a --patch
  *  fdf9bde5129a (2) A1
  |    reworded(description) from 471f378eab4c using amend by test (Thu Jan 01 00:00:00 1970 +0000)
  |      diff -r 471f378eab4c -r fdf9bde5129a changeset-description
  |      --- a/changeset-description
  |      +++ b/changeset-description
  |      @@ -1,1 +1,1 @@
  |      -A0
  |      +A1
  |
  |
  @  471f378eab4c (1) A0
  
Check that obslog on the both draft (divergent) and public (diverged) revisions shows a coherent graph
  $ hg obslog 'fdf9bde5129a+471f378eab4c' --patch
  *  fdf9bde5129a (2) A1
  |    reworded(description) from 471f378eab4c using amend by test (Thu Jan 01 00:00:00 1970 +0000)
  |      diff -r 471f378eab4c -r fdf9bde5129a changeset-description
  |      --- a/changeset-description
  |      +++ b/changeset-description
  |      @@ -1,1 +1,1 @@
  |      -A0
  |      +A1
  |
  |
  @  471f378eab4c (1) A0
  
  $ hg obslog 'fdf9bde5129a+471f378eab4c' --no-graph --no-origin -Tjson | "$PYTHON" -m json.tool
  [
      {
          "markers": [],
          "node": "fdf9bde5129a28d4548fadd3f62b265cdd3b7a2e",
          "shortdescription": "A1"
      },
      {
          "markers": [
              {
                  "dates": [
                      [
                          0.0,
                          0
                      ]
                  ],
                  "effects": [
                      "description"
                  ],
                  "operations": [
                      "amend"
                  ],
                  "succnodes": [
                      "fdf9bde5129a28d4548fadd3f62b265cdd3b7a2e"
                  ],
                  "users": [
                      "test"
                  ],
                  "verb": "reworded"
              }
          ],
          "node": "471f378eab4c5e25f6c77f785b27c936efb22874",
          "shortdescription": "A0"
      }
  ]
  $ hg obslog 'fdf9bde5129a+471f378eab4c' --no-graph -Tjson | "$PYTHON" -m json.tool
  [
      {
          "markers": [
              {
                  "dates": [
                      [
                          0.0,
                          0
                      ]
                  ],
                  "effects": [
                      "description"
                  ],
                  "operations": [
                      "amend"
                  ],
                  "prednodes": [
                      "471f378eab4c5e25f6c77f785b27c936efb22874"
                  ],
                  "users": [
                      "test"
                  ],
                  "verb": "reworded"
              }
          ],
          "node": "fdf9bde5129a28d4548fadd3f62b265cdd3b7a2e",
          "shortdescription": "A1"
      },
      {
          "markers": [],
          "node": "471f378eab4c5e25f6c77f785b27c936efb22874",
          "shortdescription": "A0"
      }
  ]
  $ hg update 471f378eab4c
  0 files updated, 0 files merged, 0 files removed, 0 files unresolved
  $ hg update --hidden 'desc(A0)'
  0 files updated, 0 files merged, 0 files removed, 0 files unresolved