$ . "$TESTDIR/testlib"

Initial setup

  $ cat << EOF >> $HGRCPATH

  > [ui]

  > logtemplate = {rev} {branch} \{{get(namespaces, "topics")}} {phase} {desc|firstline}\n

  > [experimental]

  > evolution=createmarkers,exchange,allowunstable

  > EOF

  $ hg init main

  $ cd main

  $ hg topic other

  $ echo aaa > aaa

  $ hg add aaa

  $ hg commit -m c_a

  $ echo aaa > bbb

  $ hg add bbb

  $ hg commit -m c_b

  $ hg topic foo

  $ echo aaa > ccc

  $ hg add ccc

  $ hg commit -m c_c

  $ echo aaa > ddd

  $ hg add ddd

  $ hg commit -m c_d

  $ echo aaa > eee

  $ hg add eee

  $ hg commit -m c_e

  $ echo aaa > fff

  $ hg add fff

  $ hg commit -m c_f

  $ hg log -G

  @  5 default {foo} draft c_f

  |

  o  4 default {foo} draft c_e

  |

  o  3 default {foo} draft c_d

  |

  o  2 default {foo} draft c_c

  |

  o  1 default {other} draft c_b

  |

  o  0 default {other} draft c_a

Check that topic without any parent does not crash --list

---------------------------------------------------------

  $ hg up other

  switching to topic other

  0 files updated, 0 files merged, 4 files removed, 0 files unresolved

  $ hg topic --list

  ### topic: other

  ### branch: default

  t2@ c_b (current)

  t1: c_a

  $ hg phase --public 'topic("other")'

  $ hg up foo

  switching to topic foo

  4 files updated, 0 files merged, 0 files removed, 0 files unresolved

Simple test

-----------

'hg stack' list all changeset in the topic

  $ hg topic

   * foo

  $ hg stack

  ### topic: foo

  ### branch: default

  t4@ c_f (current)

  t3: c_e

  t2: c_d

  t1: c_c

    ^ c_b

error case, nothing to list

  $ hg topic --clear

  $ hg stack

  abort: no active topic to list

  [255]

Test "t#" reference

-------------------

  $ hg up t2

  abort: cannot resolve "t2": no active topic

  [255]

  $ hg topic foo

  $ hg up t42

  abort: cannot resolve "t42": topic "foo" has only 4 changesets

  [255]

  $ hg up t2

  0 files updated, 0 files merged, 2 files removed, 0 files unresolved

  $ hg summary

  parent: 3:e629654d7050 

   c_d

  branch: default

  commit: (clean)

  update: (current)

  phases: 4 draft

  topic:  foo

Case with some of the topic unstable

------------------------------------

  $ echo bbb > ddd

  $ hg commit --amend

  $ hg log -G

  @  7 default {foo} draft c_d

  |

  | o  5 default {foo} draft c_f

  | |

  | o  4 default {foo} draft c_e

  | |

  | x  3 default {foo} draft c_d

  |/

  o  2 default {foo} draft c_c

  |

  o  1 default {} public c_b

  |

  o  0 default {} public c_a

  $ hg topic --list

  ### topic: foo

  ### branch: default

  t4$ c_f (unstable)

  t3$ c_e (unstable)

  t2@ c_d (current)

  t1: c_c

    ^ c_b

Also test the revset:

  $ hg log -r 'stack()'

  2 default {foo} draft c_c

  7 default {foo} draft c_d

  4 default {foo} draft c_e

  5 default {foo} draft c_f

Case with multiple heads on the topic

-------------------------------------

Make things linear again

  $ hg rebase -s 'desc(c_e)' -d 'desc(c_d) - obsolete()'

  rebasing 4:0f9ac936c87d "c_e"

  rebasing 5:6559e6d93aea "c_f"

  $ hg log -G

  o  9 default {foo} draft c_f

  |

  o  8 default {foo} draft c_e

  |

  @  7 default {foo} draft c_d

  |

  o  2 default {foo} draft c_c

  |

  o  1 default {} public c_b

  |

  o  0 default {} public c_a

Create the second branch

  $ hg up 'desc(c_d)'

  0 files updated, 0 files merged, 0 files removed, 0 files unresolved

  $ echo aaa > ggg

  $ hg add ggg

  $ hg commit -m c_g

  $ echo aaa > hhh

  $ hg add hhh

  $ hg commit -m c_h

  $ hg log -G

  @  11 default {foo} draft c_h

  |

  o  10 default {foo} draft c_g

  |

  | o  9 default {foo} draft c_f

  | |

  | o  8 default {foo} draft c_e

  |/

  o  7 default {foo} draft c_d

  |

  o  2 default {foo} draft c_c

  |

  o  1 default {} public c_b

  |

  o  0 default {} public c_a

Test output

  $ hg top -l

  ### topic: foo (2 heads)

  ### branch: default

  t6: c_f

  t5: c_e

  t2^ c_d (base)

  t4@ c_h (current)

  t3: c_g

  t2: c_d

  t1: c_c

    ^ c_b

Case with multiple heads on the topic with unstability involved

---------------------------------------------------------------

We amend the message to make sure the display base pick the right changeset

  $ hg up 'desc(c_d)'

  0 files updated, 0 files merged, 2 files removed, 0 files unresolved

  $ echo ccc > ddd

  $ hg commit --amend -m 'c_D' 

  $ hg rebase -d . -s 'desc(c_g)'

  rebasing 10:81264ae8a36a "c_g"

  rebasing 11:fde5f5941642 "c_h"

  $ hg log -G

  o  15 default {foo} draft c_h

  |

  o  14 default {foo} draft c_g

  |

  @  13 default {foo} draft c_D

  |

  | o  9 default {foo} draft c_f

  | |

  | o  8 default {foo} draft c_e

  | |

  | x  7 default {foo} draft c_d

  |/

  o  2 default {foo} draft c_c

  |

  o  1 default {} public c_b

  |

  o  0 default {} public c_a

  $ hg topic --list

  ### topic: foo (2 heads)

  ### branch: default

  t6$ c_f (unstable)

  t5$ c_e (unstable)

  t2^ c_D (base)

  t4: c_h

  t3: c_g

  t2@ c_D (current)

  t1: c_c

    ^ c_b