view tests/test-topic-fold.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stack: when stack base is obsolete, pick any successor, even if at random

There are situations when s0 is obsolete and we also cannot pick just one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.

test of the fold command
------------------------

  $ . $TESTDIR/testlib/common.sh
  $ cat >> $HGRCPATH <<EOF
  > [ui]
  > interactive = true
  > [extensions]
  > evolve =
  > topic =
  > EOF

  $ logtopic() {
  >    hg log -G -T "{rev}:{node}\ntopics: {topics}" 
  > }

Check that fold keep the topic if all revisions have the topic
--------------------------------------------------------------

  $ hg init testfold
  $ cd testfold
  $ mkcommit ROOT
  $ hg topic myfeature
  marked working directory as topic: myfeature
  $ mkcommit feature1
  active topic 'myfeature' grew its first changeset
  (see 'hg help topics' for more information)
  $ mkcommit feature2
  $ logtopic
  @  2:6e0fb07fa151928b633485a01b6d815b27f5a26d
  |  topics: myfeature
  o  1:95b29fc10be4e6343c8d344ad4354d6ff4098df1
  |  topics: myfeature
  o  0:ea207398892eb49e06441f10dda2a731f0450f20
     topics:
  $ hg fold --exact -r "(tip~1)::" -m "folded"
  2 changesets folded
  0 files updated, 0 files merged, 0 files removed, 0 files unresolved
  $ hg stack
  ### topic: myfeature
  ### target: default (branch)
  s1@ folded (current)
  s0^ ROOT (base)
  $ logtopic
  @  3:ba602426356f35854a83b02183d999749142443c
  |  topics: myfeature
  o  0:ea207398892eb49e06441f10dda2a731f0450f20
     topics:
  $ hg summary
  parent: 3:ba602426356f tip
   folded
  branch: default//myfeature
  commit: (clean)
  update: (current)
  phases: 2 draft
  topic:  myfeature

Check that fold dismis the topic if not all revisions have the topic
--------------------------------------------------------------------

(I'm not sure this behavior make senses, but now it is tested)

  $ hg topic --clear
  $ mkcommit feature3
  created new head
  (consider using topic for lightweight branches. See 'hg help topic')
  $ hg topic myotherfeature
  marked working directory as topic: myotherfeature
  $ mkcommit feature4
  active topic 'myotherfeature' grew its first changeset
  (see 'hg help topics' for more information)
  $ logtopic
  @  5:85e76d22bde1cb5ce44b00fc91a88cb805c93b1b
  |  topics: myotherfeature
  o  4:6508e0bfb6a188bb94d77c107f4e969291010b42
  |  topics:
  o  3:ba602426356f35854a83b02183d999749142443c
  |  topics: myfeature
  o  0:ea207398892eb49e06441f10dda2a731f0450f20
     topics:
  $ hg fold --exact -r "(tip~1)::" -m "folded 2"
  active topic 'myotherfeature' is now empty
  2 changesets folded
  clearing empty topic "myotherfeature"
  0 files updated, 0 files merged, 0 files removed, 0 files unresolved
  $ logtopic
  @  6:9fa327ea84f90ba000b75b90446680c993972df0
  |  topics:
  o  3:ba602426356f35854a83b02183d999749142443c
  |  topics: myfeature
  o  0:ea207398892eb49e06441f10dda2a731f0450f20
     topics:
  $ hg summary
  parent: 6:9fa327ea84f9 tip
   folded 2
  branch: default
  commit: (clean)
  update: (current)
  phases: 3 draft