Testing obslog and other commands accessing obsolete revisions.

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

  $ . $TESTDIR/testlib/obshistory_setup.sh

Test output with pruned commit
==============================

Check output on the client side
-------------------------------

  $ hg init $TESTTMP/local-prune
  $ hg init $TESTTMP/server
  $ cd $TESTTMP/local-prune
  $ mkcommit ROOT
  $ mkcommit A0 # 0
  $ mkcommit B0 # 1
  $ sync
  $ hg log --hidden -G
  @  changeset:   2:0dec01379d3b
  |  tag:         tip
  |  user:        test
  |  date:        Thu Jan 01 00:00:00 1970 +0000
  |  summary:     B0
  |
  o  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
  
  $ hg prune -r 'desc(B0)'
  0 files updated, 0 files merged, 1 files removed, 0 files unresolved
  working directory is now at 471f378eab4c
  1 changesets pruned
  $ sync
  $ hg log --hidden -G
  x  changeset:   2:0dec01379d3b
  |  tag:         tip
  |  user:        test
  |  date:        Thu Jan 01 00:00:00 1970 +0000
  |  obsolete:    pruned using prune
  |  summary:     B0
  |
  @  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
-----------

  $ hg obslog 'desc(B0)' --hidden --patch
  x  0dec01379d3b (2) B0
       pruned using prune by test (Thu Jan 01 00:00:00 1970 +0000)
         (No patch available, no predecessors)
  
  $ hg obslog 'desc(B0)' --hidden --no-graph -Tjson | python -m json.tool
  [
      {
          "markers": [
              {
                  "dates": [
                      [
                          *, (glob)
                          0
                      ]
                  ],
                  "operations": [
                      "prune"
                  ],
                  "users": [
                      "test"
                  ],
                  "verb": "pruned"
              }
          ],
          "node": "0dec01379d3be6318c470ead31b1fe7ae7cb53d5",
          "shortdescription": "B0"
      }
  ]
  $ hg obslog 'desc(A0)' --patch
  @  471f378eab4c (1) A0
  
  $ hg obslog 'desc(A0)' --no-graph -Tjson | python -m json.tool
  [
      {
          "markers": [],
          "node": "471f378eab4c5e25f6c77f785b27c936efb22874",
          "shortdescription": "A0"
      }
  ]
  $ hg up 1
  0 files updated, 0 files merged, 0 files removed, 0 files unresolved
  $ hg up 0dec01379d3b
  abort: hidden revision '0dec01379d3b' is pruned!
  (use --hidden to access hidden revisions)
  [255]
  $ hg up --hidden -r 'desc(B0)'
  updating to a hidden changeset 0dec01379d3b
  (hidden revision '0dec01379d3b' is pruned)
  1 files updated, 0 files merged, 0 files removed, 0 files unresolved
  working directory parent is obsolete! (0dec01379d3b)
  (use 'hg evolve' to update to its parent successor)

Check output on the server side
-------------------------------

  $ hg obslog -f -R $TESTTMP/server --patch 0dec01379d3b --hidden
  x  0dec01379d3b (2) B0
       pruned using prune by test (Thu Jan 01 00:00:00 1970 +0000)
         (No patch available, no predecessors)
  
# TODO ADD amend + prune