annotate tests/test-topic-multiple.t @ 4843:d6e2820dac1f stable

tests: add some more actions to test-issue-6028, describe what's being done

This patch does two things: it explains what's happening in the test file so
it's easier to understand, and also it adds checks that make sure something
like swapping merge parents is not accidentally breaking anything.

The primary reason to touch this test file was that it was broken by a change
in core's merge.graft() that erroneously swapped merge parents. Since only
evolve uses merge.graft() for merge commits and there aren't any tests in core
for it, let's test it here. Plus, this test case is pretty simple and these
additional checks don't make it too complicated.

Testing topics on cases when we have multiple topics based on top
of other.
  $ . "$TESTDIR/testlib/topic_setup.sh"

Setup

  $ cat << EOF >> $HGRCPATH
  > [experimental]
  > evolution = all
  > [ui]
  > interactive = True
  > logtemplate = {rev} - \{{get(namespaces, "topics")}} {node|short} {desc} ({phase})\n
  > [extensions]
  > show =
  > EOF
  $ echo "evolve=$(echo $(dirname $TESTDIR))/hgext3rd/evolve/" >> $HGRCPATH

Test to make sure `hg evolve` don't solve troubles out of current stack:
------------------------------------------------------------------------

  $ hg init repo1
  $ cd repo1
  $ for ch in a b c; do
  > echo $ch > $ch
  > hg ci -Am "added "$ch --topic foo
  > done;
  adding a
  active topic 'foo' grew its first changeset
  (see 'hg help topics' for more information)
  adding b
  adding c

  $ echo d > d
  $ hg ci -Am "added d" --topic bar
  adding d
  active topic 'bar' grew its first changeset
  (see 'hg help topics' for more information)

  $ hg up -r "desc('added c')"
  > echo cc >> c
  switching to topic foo
  0 files updated, 0 files merged, 1 files removed, 0 files unresolved
  $ hg amend
  1 new orphan changesets

  $ hg log -G
  @  4 - {foo} 0cc68cbf943a added c (draft)
  |
  | *  3 - {bar} 94b12ff0f44a added d (draft)
  | |
  | x  2 - {foo} 9c315cf1e7de added c (draft)
  |/
  o  1 - {foo} ead01932caf0 added b (draft)
  |
  o  0 - {foo} 853c9ec0849e added a (draft)
  

  $ hg stack
  ### topic: foo
  ### target: default (branch)
  s3@ added c (current)
  s2: added b
  s1: added a

As expected, evolve should deny to evolve here as there is no troubled csets in current stack:
  $ hg evolve --all
  nothing to evolve on current working copy parent
  (1 other orphan in the repository, do you want --any or --rev)
  [2]