annotate tests/test-evolve-templates.t @ 2516:d0a78e8b6434

test: split test-stablesort.t in two

This is the longest running test so we split it in two to help with parallel
execution.

This test file test the various templates for precursors and successors.

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

  $ . $TESTDIR/testlib/common.sh
  $ cat >> $HGRCPATH <<EOF
  > [ui]
  > interactive = true
  > [phases]
  > publish=False
  > [extensions]
  > evolve =
  > [alias]
  > tlog = log -G -T '{node|short}\
  >     {if(precursors, "\n  Precursors: {precursors}")}\
  >     {if(precursors, "\n  semi-colon: {join(precursors, "; ")}")}\
  >     {if(successors, "\n  Successors: {successors}")}\
  >     {if(successors, "\n  semi-colon: {join(successors, "; ")}")}\
  >     {if(successors, "\n  Fate: {obsfate_quiet}")}\n'
  > EOF

Test templates on amended commit
================================

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

  $ hg init $TESTTMP/templates-local-amend
  $ cd $TESTTMP/templates-local-amend
  $ mkcommit ROOT
  $ mkcommit A0
  $ echo 42 >> A0
  $ hg amend -m "A1"
  $ hg amend -m "A2"
  $ hg log --hidden -G
  @  changeset:   4:d004c8f274b9
  |  tag:         tip
  |  parent:      0:ea207398892e
  |  user:        test
  |  date:        Thu Jan 01 00:00:00 1970 +0000
  |  summary:     A2
  |
  | x  changeset:   3:a468dc9b3633
  |/   parent:      0:ea207398892e
  |    user:        test
  |    date:        Thu Jan 01 00:00:00 1970 +0000
  |    summary:     A1
  |
  | x  changeset:   2:f137d23bb3e1
  | |  user:        test
  | |  date:        Thu Jan 01 00:00:00 1970 +0000
  | |  summary:     temporary amend commit for 471f378eab4c
  | |
  | x  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
  
Check templates
---------------
  $ hg up 'desc(A0)' --hidden
  1 files updated, 0 files merged, 0 files removed, 0 files unresolved
  working directory parent is obsolete! (471f378eab4c)
  (use 'hg evolve' to update to its successor: d004c8f274b9)

Precursors template should show current revision as it is the working copy
  $ hg tlog
  o  d004c8f274b9
  |    Precursors: 471f378eab4c
  |    semi-colon: 471f378eab4c
  | @  471f378eab4c
  |/     Successors: [d004c8f274b9]
  |      semi-colon: [d004c8f274b9]
  |      Fate: superseed as d004c8f274b9
  o  ea207398892e
  
  $ hg up 'desc(A1)' --hidden
  1 files updated, 0 files merged, 0 files removed, 0 files unresolved
  working directory parent is obsolete! (a468dc9b3633)
  (use 'hg evolve' to update to its successor: d004c8f274b9)

Precursors template should show current revision as it is the working copy
  $ hg tlog
  o  d004c8f274b9
  |    Precursors: a468dc9b3633
  |    semi-colon: a468dc9b3633
  | @  a468dc9b3633
  |/     Successors: [d004c8f274b9]
  |      semi-colon: [d004c8f274b9]
  |      Fate: superseed as d004c8f274b9
  o  ea207398892e
  
Precursors template should show the precursor as we force its display with
--hidden  
  $ hg tlog --hidden
  o  d004c8f274b9
  |    Precursors: a468dc9b3633
  |    semi-colon: a468dc9b3633
  | @  a468dc9b3633
  |/     Precursors: 471f378eab4c
  |      semi-colon: 471f378eab4c
  |      Successors: [d004c8f274b9]
  |      semi-colon: [d004c8f274b9]
  |      Fate: superseed as d004c8f274b9
  | x  f137d23bb3e1
  | |
  | x  471f378eab4c
  |/     Successors: [a468dc9b3633]
  |      semi-colon: [a468dc9b3633]
  |      Fate: superseed as a468dc9b3633
  o  ea207398892e
  

  $ hg up 'desc(A2)'
  0 files updated, 0 files merged, 0 files removed, 0 files unresolved
  $ hg tlog
  @  d004c8f274b9
  |
  o  ea207398892e
  
  $ hg tlog --hidden
  @  d004c8f274b9
  |    Precursors: a468dc9b3633
  |    semi-colon: a468dc9b3633
  | x  a468dc9b3633
  |/     Precursors: 471f378eab4c
  |      semi-colon: 471f378eab4c
  |      Successors: [d004c8f274b9]
  |      semi-colon: [d004c8f274b9]
  |      Fate: superseed as d004c8f274b9
  | x  f137d23bb3e1
  | |
  | x  471f378eab4c
  |/     Successors: [a468dc9b3633]
  |      semi-colon: [a468dc9b3633]
  |      Fate: superseed as a468dc9b3633
  o  ea207398892e
  

Test templates with splitted commit
===================================

  $ hg init $TESTTMP/templates-local-split
  $ cd $TESTTMP/templates-local-split
  $ mkcommit ROOT
  $ echo 42 >> a
  $ echo 43 >> b
  $ hg commit -A -m "A0"
  adding a
  adding b
  $ hg log --hidden -G
  @  changeset:   1:471597cad322
  |  tag:         tip
  |  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 split -r 'desc(A0)' -d "0 0" << EOF
  > y
  > y
  > n
  > n
  > y
  > y
  > EOF
  0 files updated, 0 files merged, 2 files removed, 0 files unresolved
  adding a
  adding b
  diff --git a/a b/a
  new file mode 100644
  examine changes to 'a'? [Ynesfdaq?] y
  
  @@ -0,0 +1,1 @@
  +42
  record change 1/2 to 'a'? [Ynesfdaq?] y
  
  diff --git a/b b/b
  new file mode 100644
  examine changes to 'b'? [Ynesfdaq?] n
  
  created new head
  Done splitting? [yN] n
  diff --git a/b b/b
  new file mode 100644
  examine changes to 'b'? [Ynesfdaq?] y
  
  @@ -0,0 +1,1 @@
  +43
  record this change to 'b'? [Ynesfdaq?] y
  
  no more change to split

  $ hg log --hidden -G
  @  changeset:   3:f257fde29c7a
  |  tag:         tip
  |  user:        test
  |  date:        Thu Jan 01 00:00:00 1970 +0000
  |  summary:     A0
  |
  o  changeset:   2:337fec4d2edc
  |  parent:      0:ea207398892e
  |  user:        test
  |  date:        Thu Jan 01 00:00:00 1970 +0000
  |  summary:     A0
  |
  | x  changeset:   1:471597cad322
  |/   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
  

Check templates
---------------

  $ hg up 'obsolete()' --hidden
  0 files updated, 0 files merged, 0 files removed, 0 files unresolved
  working directory parent is obsolete! (471597cad322)
  (use 'hg evolve' to update to its tipmost successor: 337fec4d2edc, f257fde29c7a)

Precursors template should show current revision as it is the working copy
  $ hg tlog
  o  f257fde29c7a
  |    Precursors: 471597cad322
  |    semi-colon: 471597cad322
  o  337fec4d2edc
  |    Precursors: 471597cad322
  |    semi-colon: 471597cad322
  | @  471597cad322
  |/     Successors: [337fec4d2edc, f257fde29c7a]
  |      semi-colon: [337fec4d2edc, f257fde29c7a]
  |      Fate: superseed as 337fec4d2edc,f257fde29c7a
  o  ea207398892e
  
  $ hg up f257fde29c7a
  0 files updated, 0 files merged, 0 files removed, 0 files unresolved

Precursors template should not show a precursor as it's not displayed in the
log
  $ hg tlog
  @  f257fde29c7a
  |
  o  337fec4d2edc
  |
  o  ea207398892e
  
Precursors template should show the precursor as we force its display with
--hidden
  $ hg tlog --hidden
  @  f257fde29c7a
  |    Precursors: 471597cad322
  |    semi-colon: 471597cad322
  o  337fec4d2edc
  |    Precursors: 471597cad322
  |    semi-colon: 471597cad322
  | x  471597cad322
  |/     Successors: [337fec4d2edc, f257fde29c7a]
  |      semi-colon: [337fec4d2edc, f257fde29c7a]
  |      Fate: superseed as 337fec4d2edc,f257fde29c7a
  o  ea207398892e
  
Test templates with folded commit
==============================

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

  $ hg init $TESTTMP/templates-local-fold
  $ cd $TESTTMP/templates-local-fold
  $ mkcommit ROOT
  $ mkcommit A0
  $ mkcommit B0
  $ 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 fold --exact -r 'desc(A0) + desc(B0)' --date "0 0" -m "C0"
  2 changesets folded
  0 files updated, 0 files merged, 0 files removed, 0 files unresolved
  $ hg log --hidden -G
  @  changeset:   3:eb5a0daa2192
  |  tag:         tip
  |  parent:      0:ea207398892e
  |  user:        test
  |  date:        Thu Jan 01 00:00:00 1970 +0000
  |  summary:     C0
  |
  | x  changeset:   2:0dec01379d3b
  | |  user:        test
  | |  date:        Thu Jan 01 00:00:00 1970 +0000
  | |  summary:     B0
  | |
  | x  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
  
Check templates
---------------

  $ hg up 'desc(A0)' --hidden
  0 files updated, 0 files merged, 1 files removed, 0 files unresolved
  working directory parent is obsolete! (471f378eab4c)
  (use 'hg evolve' to update to its successor: eb5a0daa2192)

Precursors template should show current revision as it is the working copy
  $ hg tlog
  o  eb5a0daa2192
  |    Precursors: 471f378eab4c
  |    semi-colon: 471f378eab4c
  | @  471f378eab4c
  |/     Successors: [eb5a0daa2192]
  |      semi-colon: [eb5a0daa2192]
  |      Fate: superseed as eb5a0daa2192
  o  ea207398892e
  
  $ hg up 'desc(B0)' --hidden
  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 successor: eb5a0daa2192)

Precursors template should show both precursors as they should be both
displayed
  $ hg tlog
  o  eb5a0daa2192
  |    Precursors: 0dec01379d3b 471f378eab4c
  |    semi-colon: 0dec01379d3b; 471f378eab4c
  | @  0dec01379d3b
  | |    Successors: [eb5a0daa2192]
  | |    semi-colon: [eb5a0daa2192]
  | |    Fate: superseed as eb5a0daa2192
  | x  471f378eab4c
  |/     Successors: [eb5a0daa2192]
  |      semi-colon: [eb5a0daa2192]
  |      Fate: superseed as eb5a0daa2192
  o  ea207398892e
  
  $ hg up 'desc(C0)'
  0 files updated, 0 files merged, 0 files removed, 0 files unresolved

Precursors template should not show precursors as it's not displayed in the
log
  $ hg tlog
  @  eb5a0daa2192
  |
  o  ea207398892e
  
Precursors template should show both precursors as we force its display with
--hidden
  $ hg tlog --hidden
  @  eb5a0daa2192
  |    Precursors: 0dec01379d3b 471f378eab4c
  |    semi-colon: 0dec01379d3b; 471f378eab4c
  | x  0dec01379d3b
  | |    Successors: [eb5a0daa2192]
  | |    semi-colon: [eb5a0daa2192]
  | |    Fate: superseed as eb5a0daa2192
  | x  471f378eab4c
  |/     Successors: [eb5a0daa2192]
  |      semi-colon: [eb5a0daa2192]
  |      Fate: superseed as eb5a0daa2192
  o  ea207398892e
  

Test templates with divergence
==============================

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

  $ hg init $TESTTMP/templates-local-divergence
  $ cd $TESTTMP/templates-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
  |    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
  working directory parent is obsolete! (471f378eab4c)
  (use 'hg evolve' to update to its successor: fdf9bde5129a)
  $ hg amend -m "A2"
  2 new 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
  |  trouble:     divergent
  |  summary:     A2
  |
  | o  changeset:   2:fdf9bde5129a
  |/   parent:      0:ea207398892e
  |    user:        test
  |    date:        Thu Jan 01 00:00:00 1970 +0000
  |    trouble:     divergent
  |    summary:     A1
  |
  | x  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 amend -m 'A3'

Check templates
---------------

  $ hg up 'desc(A0)' --hidden
  0 files updated, 0 files merged, 0 files removed, 0 files unresolved
  working directory parent is obsolete! (471f378eab4c)
  (471f378eab4c has diverged, use 'hg evolve -list --divergent' to resolve the issue)

Precursors template should show current revision as it is the working copy
  $ hg tlog
  o  019fadeab383
  |    Precursors: 471f378eab4c
  |    semi-colon: 471f378eab4c
  | o  fdf9bde5129a
  |/     Precursors: 471f378eab4c
  |      semi-colon: 471f378eab4c
  | @  471f378eab4c
  |/     Successors: [fdf9bde5129a], [019fadeab383]
  |      semi-colon: [fdf9bde5129a]; [019fadeab383]
  |      Fate: superseed as fdf9bde5129a + superseed as 019fadeab383
  o  ea207398892e
  
  $ hg up 'desc(A1)'
  0 files updated, 0 files merged, 0 files removed, 0 files unresolved
Precursors template should not show precursors as it's not displayed in the
log
  $ hg tlog
  o  019fadeab383
  |
  | @  fdf9bde5129a
  |/
  o  ea207398892e
  
Precursors template should a precursor as we force its display with --hidden
  $ hg tlog --hidden
  o  019fadeab383
  |    Precursors: 65b757b745b9
  |    semi-colon: 65b757b745b9
  | x  65b757b745b9
  |/     Precursors: 471f378eab4c
  |      semi-colon: 471f378eab4c
  |      Successors: [019fadeab383]
  |      semi-colon: [019fadeab383]
  |      Fate: superseed as 019fadeab383
  | @  fdf9bde5129a
  |/     Precursors: 471f378eab4c
  |      semi-colon: 471f378eab4c
  | x  471f378eab4c
  |/     Successors: [fdf9bde5129a], [65b757b745b9]
  |      semi-colon: [fdf9bde5129a]; [65b757b745b9]
  |      Fate: superseed as fdf9bde5129a + superseed as 65b757b745b9
  o  ea207398892e
  
Test templates with amended + folded commit
===========================================

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

  $ hg init $TESTTMP/templates-local-amend-fold
  $ cd $TESTTMP/templates-local-amend-fold
  $ mkcommit ROOT
  $ mkcommit A0
  $ mkcommit B0
  $ hg amend -m "B1"
  $ hg log --hidden -G
  @  changeset:   3:b7ea6d14e664
  |  tag:         tip
  |  parent:      1:471f378eab4c
  |  user:        test
  |  date:        Thu Jan 01 00:00:00 1970 +0000
  |  summary:     B1
  |
  | x  changeset:   2:0dec01379d3b
  |/   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 fold --exact -r 'desc(A0) + desc(B1)' --date "0 0" -m "C0"
  2 changesets folded
  0 files updated, 0 files merged, 0 files removed, 0 files unresolved
  $ hg log --hidden -G
  @  changeset:   4:eb5a0daa2192
  |  tag:         tip
  |  parent:      0:ea207398892e
  |  user:        test
  |  date:        Thu Jan 01 00:00:00 1970 +0000
  |  summary:     C0
  |
  | x  changeset:   3:b7ea6d14e664
  | |  parent:      1:471f378eab4c
  | |  user:        test
  | |  date:        Thu Jan 01 00:00:00 1970 +0000
  | |  summary:     B1
  | |
  | | x  changeset:   2:0dec01379d3b
  | |/   user:        test
  | |    date:        Thu Jan 01 00:00:00 1970 +0000
  | |    summary:     B0
  | |
  | x  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
  
Check templates
---------------

  $ hg up 'desc(A0)' --hidden
  0 files updated, 0 files merged, 1 files removed, 0 files unresolved
  working directory parent is obsolete! (471f378eab4c)
  (use 'hg evolve' to update to its successor: eb5a0daa2192)
  $ hg tlog
  o  eb5a0daa2192
  |    Precursors: 471f378eab4c
  |    semi-colon: 471f378eab4c
  | @  471f378eab4c
  |/     Successors: [eb5a0daa2192]
  |      semi-colon: [eb5a0daa2192]
  |      Fate: superseed as eb5a0daa2192
  o  ea207398892e
  
  $ hg up 'desc(B0)' --hidden
  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 successor: eb5a0daa2192)
  $ hg tlog
  o  eb5a0daa2192
  |    Precursors: 0dec01379d3b 471f378eab4c
  |    semi-colon: 0dec01379d3b; 471f378eab4c
  | @  0dec01379d3b
  | |    Successors: [eb5a0daa2192]
  | |    semi-colon: [eb5a0daa2192]
  | |    Fate: superseed as eb5a0daa2192
  | x  471f378eab4c
  |/     Successors: [eb5a0daa2192]
  |      semi-colon: [eb5a0daa2192]
  |      Fate: superseed as eb5a0daa2192
  o  ea207398892e
  
  $ hg up 'desc(B1)' --hidden
  0 files updated, 0 files merged, 0 files removed, 0 files unresolved
  working directory parent is obsolete! (b7ea6d14e664)
  (use 'hg evolve' to update to its successor: eb5a0daa2192)
  $ hg tlog
  o  eb5a0daa2192
  |    Precursors: 471f378eab4c b7ea6d14e664
  |    semi-colon: 471f378eab4c; b7ea6d14e664
  | @  b7ea6d14e664
  | |    Successors: [eb5a0daa2192]
  | |    semi-colon: [eb5a0daa2192]
  | |    Fate: superseed as eb5a0daa2192
  | x  471f378eab4c
  |/     Successors: [eb5a0daa2192]
  |      semi-colon: [eb5a0daa2192]
  |      Fate: superseed as eb5a0daa2192
  o  ea207398892e
  
  $ hg up 'desc(C0)'
  0 files updated, 0 files merged, 0 files removed, 0 files unresolved
  $ hg tlog
  @  eb5a0daa2192
  |
  o  ea207398892e
  
  $ hg tlog --hidden
  @  eb5a0daa2192
  |    Precursors: 471f378eab4c b7ea6d14e664
  |    semi-colon: 471f378eab4c; b7ea6d14e664
  | x  b7ea6d14e664
  | |    Precursors: 0dec01379d3b
  | |    semi-colon: 0dec01379d3b
  | |    Successors: [eb5a0daa2192]
  | |    semi-colon: [eb5a0daa2192]
  | |    Fate: superseed as eb5a0daa2192
  | | x  0dec01379d3b
  | |/     Successors: [b7ea6d14e664]
  | |      semi-colon: [b7ea6d14e664]
  | |      Fate: superseed as b7ea6d14e664
  | x  471f378eab4c
  |/     Successors: [eb5a0daa2192]
  |      semi-colon: [eb5a0daa2192]
  |      Fate: superseed as eb5a0daa2192
  o  ea207398892e
  

Test template with pushed and pulled obs markers
==============================================

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

  $ hg init $TESTTMP/templates-local-remote-markers-1
  $ cd $TESTTMP/templates-local-remote-markers-1
  $ mkcommit ROOT
  $ mkcommit A0  
  $ hg clone $TESTTMP/templates-local-remote-markers-1 $TESTTMP/templates-local-remote-markers-2
  updating to branch default
  2 files updated, 0 files merged, 0 files removed, 0 files unresolved
  $ cd $TESTTMP/templates-local-remote-markers-2
  $ hg log --hidden -G
  @  changeset:   1:471f378eab4c
  |  tag:         tip
  |  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
  
  $ cd $TESTTMP/templates-local-remote-markers-1
  $ hg amend -m "A1"
  $ hg amend -m "A2"
  $ hg log --hidden -G
  @  changeset:   3:7a230b46bf61
  |  tag:         tip
  |  parent:      0:ea207398892e
  |  user:        test
  |  date:        Thu Jan 01 00:00:00 1970 +0000
  |  summary:     A2
  |
  | x  changeset:   2:fdf9bde5129a
  |/   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
  |    summary:     A0
  |
  o  changeset:   0:ea207398892e
     user:        test
     date:        Thu Jan 01 00:00:00 1970 +0000
     summary:     ROOT
  
  $ cd $TESTTMP/templates-local-remote-markers-2
  $ hg pull
  pulling from $TESTTMP/templates-local-remote-markers-1
  searching for changes
  adding changesets
  adding manifests
  adding file changes
  added 1 changesets with 0 changes to 1 files (+1 heads)
  2 new obsolescence markers
  (run 'hg heads' to see heads, 'hg merge' to merge)
  working directory parent is obsolete! (471f378eab4c)
  (use 'hg evolve' to update to its successor: 7a230b46bf61)
  $ hg log --hidden -G
  o  changeset:   2:7a230b46bf61
  |  tag:         tip
  |  parent:      0:ea207398892e
  |  user:        test
  |  date:        Thu Jan 01 00:00:00 1970 +0000
  |  summary:     A2
  |
  | @  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
  

Check templates
---------------

  $ hg tlog
  o  7a230b46bf61
  |    Precursors: 471f378eab4c
  |    semi-colon: 471f378eab4c
  | @  471f378eab4c
  |/     Successors: [7a230b46bf61]
  |      semi-colon: [7a230b46bf61]
  |      Fate: superseed as 7a230b46bf61
  o  ea207398892e
  
  $ hg up 'desc(A2)'
  0 files updated, 0 files merged, 0 files removed, 0 files unresolved
  $ hg tlog
  @  7a230b46bf61
  |
  o  ea207398892e
  
  $ hg tlog --hidden
  @  7a230b46bf61
  |    Precursors: 471f378eab4c
  |    semi-colon: 471f378eab4c
  | x  471f378eab4c
  |/     Successors: [7a230b46bf61]
  |      semi-colon: [7a230b46bf61]
  |      Fate: superseed as 7a230b46bf61
  o  ea207398892e