Test for `hg debugconvertbookmark` added by topics

==================================================

  $ . "$TESTDIR/testlib/topic_setup.sh"

  $ cat << EOF >> $HGRCPATH

  > [ui]

  > logtemplate = [{rev}:{node|short}] {desc|firstline}\n\

  > {if(bookmarks, "  bookmark: {join(bookmarks,"\n  bookmark:")}\n")}\

  > {if(topics, "  topic: {topics}\n")}

  > EOF

  $ hg init repo

  $ cd repo

  $ echo "Hello" > a

  $ hg commit -Aqm "First commit"

  $ echo "Hello" > b

  $ hg commit -Aqm "Second commit"

  $ hg bookmark "hellos"

  $ hg up 0 -q

  $ echo "Fix 1" > l

  $ hg commit -Aqm "Fixing first"

  $ echo "Fix 2" > m

  $ hg commit -Aqm "Fixing second"

  $ hg bookmark "secondfix"

  $ hg log -G

  @  [3:b985e4fea4a4] Fixing second

  |    bookmark: secondfix

  o  [2:8e79b09248c2] Fixing first

  |

  | o  [1:50634233706a] Second commit

  |/     bookmark: hellos

  o  [0:3caf92e45cfb] First commit

Help for the command

====================

  $ hg help debugconvertbookmark

  hg debugcb [-b BOOKMARK] [--all]

  aliases: debugconvertbookmark

  Converts a bookmark to a topic with the same name.

  options:

   -b --bookmark VALUE bookmark to convert to topic

      --all            convert all bookmarks to topics

  (some details hidden, use --verbose to show complete help)

Running without any argument

============================

  $ hg debugconvertbookmark

  abort: you must specify either '--all' or '-b'

  [255]

Changing a particular bookmark to topic

=======================================

  $ hg debugconvertbookmark -b hellos

  changed topic to "hellos" on 1 revisions

  $ hg log -G

  o  [4:ca8825a7eb18] Second commit

  |    topic: hellos

  | @  [3:b985e4fea4a4] Fixing second

  | |    bookmark: secondfix

  | o  [2:8e79b09248c2] Fixing first

  |/

  o  [0:3caf92e45cfb] First commit

Changing all bookmarks to topic

===============================

  $ hg debugconvertbookmark --all

  switching to topic secondfix

  changed topic to "secondfix" on 2 revisions

  $ hg log -G

  @  [6:6efc0524f97a] Fixing second

  |    topic: secondfix

  o  [5:0a4244c62a16] Fixing first

  |    topic: secondfix

  | o  [4:ca8825a7eb18] Second commit

  |/     topic: hellos

  o  [0:3caf92e45cfb] First commit

Trying with multiple bookmarks on a single changeset

====================================================

  $ echo "multiple bookmarks" >> m

  $ hg commit -Aqm "Trying multiple bookmarks"

  $ hg bookmark book1

  $ hg bookmark book2

  $ hg log -G

  @  [7:7c46b4bbdda3] Trying multiple bookmarks

  |    bookmark: book1

  |    bookmark:book2

  |    topic: secondfix

  o  [6:6efc0524f97a] Fixing second

  |    topic: secondfix

  o  [5:0a4244c62a16] Fixing first

  |    topic: secondfix

  | o  [4:ca8825a7eb18] Second commit

  |/     topic: hellos

  o  [0:3caf92e45cfb] First commit

  $ hg debugconvertbookmark --all

  skipping '7' as it has multiple bookmarks on it

  $ hg log -G

  @  [7:7c46b4bbdda3] Trying multiple bookmarks

  |    bookmark: book1

  |    bookmark:book2

  |    topic: secondfix

  o  [6:6efc0524f97a] Fixing second

  |    topic: secondfix

  o  [5:0a4244c62a16] Fixing first

  |    topic: secondfix

  | o  [4:ca8825a7eb18] Second commit

  |/     topic: hellos

  o  [0:3caf92e45cfb] First commit