view tests/test-evolve-obshistory-content-divergent.t @ 6935:954d7ea5cd67 stable tip

stack: when stack base is obsolete, pick any successor, even if at random

There are situations when s0 is obsolete and we also cannot pick just one
successor for it to use in stack. In such a case, let's pick the "latest"
successor from the first set.

We're assuming that obsutil.successorssets() returns data in the same order (it
should, since it makes sure to sort data internally). Keeping that in mind,
while the successor picked for s0 by this code is not based on any sort of
sophisticated logic, it should nonetheless be the same every time.

This patch is probably not going to completely break anything that was
previously working fine, because the previous behavior was to just abort with
an exception.

Testing obslog and other commands accessing obsolete revisions.

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

  $ . $TESTDIR/testlib/obshistory_setup.sh
  $ cat >> $HGRCPATH << EOF
  > [experimental]
  > evolution.allowdivergence = True
  > EOF

Test output with content-divergence
===================================

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

  $ hg init $TESTTMP/local-divergence
  $ cd $TESTTMP/local-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  working directory parent is obsolete!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 amend -m "A2"
  2 new content-divergent changesets
  $ hg log --hidden -G
  @  changeset:   3:65b757b745b9
  |  tag:         tip
  |  parent:      0:ea207398892e
  |  user:        test
  |  date:        Thu Jan 01 00:00:00 1970 +0000
  |  instability: content-divergent
  |  summary:     A2
  |
  | *  changeset:   2:fdf9bde5129a
  |/   parent:      0:ea207398892e
  |    user:        test
  |    date:        Thu Jan 01 00:00:00 1970 +0000
  |    instability: content-divergent
  |    summary:     A1
  |
  | x  changeset:   1:471f378eab4c
  |/   user:        test
  |    date:        Thu Jan 01 00:00:00 1970 +0000
  |    obsolete:    reworded using amend as 2:fdf9bde5129a
  |    obsolete:    reworded using amend as 3:65b757b745b9
  |    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 divergent revision shows both destinations
  $ hg obslog --hidden 471f378eab4c --patch --no-origin
  x  471f378eab4c (1) A0
       reworded(description) as 65b757b745b9 using amend by test (Thu Jan 01 00:00:00 1970 +0000)
         diff -r 471f378eab4c -r 65b757b745b9 changeset-description
         --- a/changeset-description
         +++ b/changeset-description
         @@ -1,1 +1,1 @@
         -A0
         +A2
  
       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 'desc(A0)' --no-origin -f
  x  471f378eab4c (1) A0
       reworded(description) as 65b757b745b9 using amend by test (Thu Jan 01 00:00:00 1970 +0000)
       reworded(description) as fdf9bde5129a using amend by test (Thu Jan 01 00:00:00 1970 +0000)
  

Check that with all option, every changeset is shown
  $ hg obslog --hidden --all 471f378eab4c --patch
  @  65b757b745b9 (3) A2
  |    reworded(description) from 471f378eab4c using amend by test (Thu Jan 01 00:00:00 1970 +0000)
  |      diff -r 471f378eab4c -r 65b757b745b9 changeset-description
  |      --- a/changeset-description
  |      +++ b/changeset-description
  |      @@ -1,1 +1,1 @@
  |      -A0
  |      +A2
  |
  |
  | *  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
  |
  |
  x  471f378eab4c (1) A0
  
  $ hg obslog --hidden --all 'desc(A0)' --no-origin -f
  @  65b757b745b9 (3) A2
  |
  | *  fdf9bde5129a (2) A1
  |/
  x  471f378eab4c (1) A0
       reworded(description) as 65b757b745b9 using amend by test (Thu Jan 01 00:00:00 1970 +0000)
       reworded(description) as fdf9bde5129a using amend by test (Thu Jan 01 00:00:00 1970 +0000)
  
  $ hg obslog --hidden 471f378eab4c --no-graph --no-origin -Tjson | "$PYTHON" -m json.tool
  [
      {
          "markers": [
              {
                  "dates": [
                      [
                          *, (glob)
                          0
                      ]
                  ],
                  "effects": [
                      "description"
                  ],
                  "operations": [
                      "amend"
                  ],
                  "succnodes": [
                      "65b757b745b935093c87a2bccd877521cccffcbd"
                  ],
                  "users": [
                      "test"
                  ],
                  "verb": "reworded"
              },
              {
                  "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 first diverged revision shows the revision and the
divergent one
  $ hg obslog fdf9bde5129a --patch --no-origin
  *  fdf9bde5129a (2) A1
  |
  x  471f378eab4c (1) A0
       reworded(description) as 65b757b745b9 using amend by test (Thu Jan 01 00:00:00 1970 +0000)
         diff -r 471f378eab4c -r 65b757b745b9 changeset-description
         --- a/changeset-description
         +++ b/changeset-description
         @@ -1,1 +1,1 @@
         -A0
         +A2
  
       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 all option shows all of them
  $ hg obslog fdf9bde5129a -a --patch
  @  65b757b745b9 (3) A2
  |    reworded(description) from 471f378eab4c using amend by test (Thu Jan 01 00:00:00 1970 +0000)
  |      diff -r 471f378eab4c -r 65b757b745b9 changeset-description
  |      --- a/changeset-description
  |      +++ b/changeset-description
  |      @@ -1,1 +1,1 @@
  |      -A0
  |      +A2
  |
  |
  | *  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
  |
  |
  x  471f378eab4c (1) A0
  
Check that obslog on the second diverged revision shows the revision and the
divergent one
  $ hg obslog 65b757b745b9 --patch --no-origin
  @  65b757b745b9 (3) A2
  |
  x  471f378eab4c (1) A0
       reworded(description) as 65b757b745b9 using amend by test (Thu Jan 01 00:00:00 1970 +0000)
         diff -r 471f378eab4c -r 65b757b745b9 changeset-description
         --- a/changeset-description
         +++ b/changeset-description
         @@ -1,1 +1,1 @@
         -A0
         +A2
  
       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 all option shows all of them
  $ hg obslog 65b757b745b9 -a --patch
  @  65b757b745b9 (3) A2
  |    reworded(description) from 471f378eab4c using amend by test (Thu Jan 01 00:00:00 1970 +0000)
  |      diff -r 471f378eab4c -r 65b757b745b9 changeset-description
  |      --- a/changeset-description
  |      +++ b/changeset-description
  |      @@ -1,1 +1,1 @@
  |      -A0
  |      +A2
  |
  |
  | *  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
  |
  |
  x  471f378eab4c (1) A0
  
Check that obslog on the both diverged revision shows a coherent graph
  $ hg obslog '65b757b745b9+fdf9bde5129a' --patch
  @  65b757b745b9 (3) A2
  |    reworded(description) from 471f378eab4c using amend by test (Thu Jan 01 00:00:00 1970 +0000)
  |      diff -r 471f378eab4c -r 65b757b745b9 changeset-description
  |      --- a/changeset-description
  |      +++ b/changeset-description
  |      @@ -1,1 +1,1 @@
  |      -A0
  |      +A2
  |
  |
  | *  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
  |
  |
  x  471f378eab4c (1) A0
  
  $ hg obslog '65b757b745b9+fdf9bde5129a' --no-graph --no-origin -Tjson | "$PYTHON" -m json.tool
  [
      {
          "markers": [],
          "node": "65b757b745b935093c87a2bccd877521cccffcbd",
          "shortdescription": "A2"
      },
      {
          "markers": [
              {
                  "dates": [
                      [
                          *, (glob)
                          0
                      ]
                  ],
                  "effects": [
                      "description"
                  ],
                  "operations": [
                      "amend"
                  ],
                  "succnodes": [
                      "65b757b745b935093c87a2bccd877521cccffcbd"
                  ],
                  "users": [
                      "test"
                  ],
                  "verb": "reworded"
              },
              {
                  "dates": [
                      [
                          *, (glob)
                          0
                      ]
                  ],
                  "effects": [
                      "description"
                  ],
                  "operations": [
                      "amend"
                  ],
                  "succnodes": [
                      "fdf9bde5129a28d4548fadd3f62b265cdd3b7a2e"
                  ],
                  "users": [
                      "test"
                  ],
                  "verb": "reworded"
              }
          ],
          "node": "471f378eab4c5e25f6c77f785b27c936efb22874",
          "shortdescription": "A0"
      },
      {
          "markers": [],
          "node": "fdf9bde5129a28d4548fadd3f62b265cdd3b7a2e",
          "shortdescription": "A1"
      }
  ]
  $ hg obslog '65b757b745b9+fdf9bde5129a' --no-graph -Tjson | "$PYTHON" -m json.tool
  [
      {
          "markers": [
              {
                  "dates": [
                      [
                          0.0,
                          0
                      ]
                  ],
                  "effects": [
                      "description"
                  ],
                  "operations": [
                      "amend"
                  ],
                  "prednodes": [
                      "471f378eab4c5e25f6c77f785b27c936efb22874"
                  ],
                  "users": [
                      "test"
                  ],
                  "verb": "reworded"
              }
          ],
          "node": "65b757b745b935093c87a2bccd877521cccffcbd",
          "shortdescription": "A2"
      },
      {
          "markers": [],
          "node": "471f378eab4c5e25f6c77f785b27c936efb22874",
          "shortdescription": "A0"
      },
      {
          "markers": [
              {
                  "dates": [
                      [
                          *, (glob)
                          0
                      ]
                  ],
                  "effects": [
                      "description"
                  ],
                  "operations": [
                      "amend"
                  ],
                  "prednodes": [
                      "471f378eab4c5e25f6c77f785b27c936efb22874"
                  ],
                  "users": [
                      "test"
                  ],
                  "verb": "reworded"
              }
          ],
          "node": "fdf9bde5129a28d4548fadd3f62b265cdd3b7a2e",
          "shortdescription": "A1"
      }
  ]
  $ hg update 471f378eab4c
  abort: hidden revision '471f378eab4c' has diverged
  (use --hidden to access hidden revisions)
  [10]
  $ 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' has diverged)
  working directory parent is obsolete! (471f378eab4c)
  (471f378eab4c has diverged, use 'hg evolve --list --content-divergent' to resolve the issue)