$ cat >> $HGRCPATH << EOF

  > [extensions]

  > show =

  > EOF

  $ hg init repo0

  $ cd repo0

Command works on an empty repo

  $ hg show work

Single draft changeset shown

  $ echo 0 > foo

  $ hg -q commit -A -m 'commit 0'

  $ hg show work

  @  9f171 commit 0

Even when it isn't the wdir

  $ hg -q up null

  $ hg show work

  o  9f171 commit 0

Single changeset is still there when public because it is a head

  $ hg phase --public -r 0

  $ hg show work

  o  9f171 commit 0

A draft child will show both it and public parent

  $ hg -q up 0

  $ echo 1 > foo

  $ hg commit -m 'commit 1'

  $ hg show work

  @  181cc commit 1

  o  9f171 commit 0

Multiple draft children will be shown

  $ echo 2 > foo

  $ hg commit -m 'commit 2'

  $ hg show work

  @  128c8 commit 2

  o  181cc commit 1

  o  9f171 commit 0

Bumping first draft changeset to public will hide its parent

  $ hg phase --public -r 1

  $ hg show work

  @  128c8 commit 2

  o  181cc commit 1

  |

  ~

Multiple DAG heads will be shown

  $ hg -q up -r 1

  $ echo 3 > foo

  $ hg commit -m 'commit 3'

  created new head

  $ hg show work

  @  f0abc commit 3

  | o  128c8 commit 2

  |/

  o  181cc commit 1

  |

  ~

Even when wdir is something else

  $ hg -q up null

  $ hg show work

  o  f0abc commit 3

  | o  128c8 commit 2

  |/

  o  181cc commit 1

  |

  ~

Draft child shows public head (multiple heads)

  $ hg -q up 0

  $ echo 4 > foo

  $ hg commit -m 'commit 4'

  created new head

  $ hg show work

  @  668ca commit 4

  | o  f0abc commit 3

  | | o  128c8 commit 2

  | |/

  | o  181cc commit 1

  |/

  o  9f171 commit 0

  $ cd ..

Branch name appears in output

  $ hg init branches

  $ cd branches

  $ echo 0 > foo

  $ hg -q commit -A -m 'commit 0'

  $ echo 1 > foo

  $ hg commit -m 'commit 1'

  $ echo 2 > foo

  $ hg commit -m 'commit 2'

  $ hg phase --public -r .

  $ hg -q up -r 1

  $ hg branch mybranch

  marked working directory as branch mybranch

  (branches are permanent and global, did you want a bookmark?)

  $ echo 3 > foo

  $ hg commit -m 'commit 3'

  $ echo 4 > foo

  $ hg commit -m 'commit 4'

  $ hg show work

  @  f8dd3 (mybranch) commit 4

  o  90cfc (mybranch) commit 3

  | o  128c8 commit 2

  |/

  o  181cc commit 1

  |

  ~

  $ cd ..

Bookmark name appears in output

  $ hg init bookmarks

  $ cd bookmarks

  $ echo 0 > foo

  $ hg -q commit -A -m 'commit 0'

  $ echo 1 > foo

  $ hg commit -m 'commit 1'

  $ echo 2 > foo

  $ hg commit -m 'commit 2'

  $ hg phase --public -r .

  $ hg bookmark @

  $ hg -q up -r 1

  $ echo 3 > foo

  $ hg commit -m 'commit 3'

  created new head

  $ echo 4 > foo

  $ hg commit -m 'commit 4'

  $ hg bookmark mybook

  $ hg show work

  @  cac82 (mybook) commit 4

  o  f0abc commit 3

  | o  128c8 (@) commit 2

  |/

  o  181cc commit 1

  |

  ~

  $ cd ..

Tags are rendered

  $ hg init tags

  $ cd tags

  $ echo 0 > foo

  $ hg -q commit -A -m 'commit 1'

  $ echo 1 > foo

  $ hg commit -m 'commit 2'

  $ hg tag 0.1

  $ hg phase --public -r .

  $ echo 2 > foo

  $ hg commit -m 'commit 3'

  $ hg tag 0.2

  $ hg show work

  @  37582 Added tag 0.2 for changeset 6379c25b76f1

  o  a2ad9 Added tag 0.1 for changeset 6a75536ea0b1

  |

  ~

  $ cd ..

Multiple names on same changeset render properly

  $ hg init multiplenames

  $ cd multiplenames

  $ echo 0 > foo

  $ hg -q commit -A -m 'commit 1'

  $ hg phase --public -r .

  $ hg branch mybranch

  marked working directory as branch mybranch

  (branches are permanent and global, did you want a bookmark?)

  $ hg bookmark mybook

  $ echo 1 > foo

  $ hg commit -m 'commit 2'

  $ hg show work

  o  97fcc commit 1

Multiple bookmarks on same changeset render properly

  $ hg book mybook2

  $ hg show work

  o  97fcc commit 1

  $ cd ..

Extra namespaces are rendered

  $ hg init extranamespaces

  $ cd extranamespaces

  $ echo 0 > foo

  $ hg -q commit -A -m 'commit 1'

  $ hg phase --public -r .

  $ echo 1 > foo

  $ hg commit -m 'commit 2'

  $ echo 2 > foo

  $ hg commit -m 'commit 3'

  $ hg --config extensions.revnames=$TESTDIR/revnamesext.py show work

  $ cd ..