$ cat >> $HGRCPATH <<EOF

  > [extensions]

  > histedit=

  > EOF

  $ initrepos ()

  > {

  >     hg init r

  >     cd r

  >     for x in a b c ; do

  >         echo $x > $x

  >         hg add $x

  >         hg ci -m $x

  >     done

  >     cd ..

  >     hg clone r r2 | grep -v updating

  >     cd r2

  >     for x in d e f ; do

  >         echo $x > $x

  >         hg add $x

  >         hg ci -m $x

  >     done

  >     cd ..

  >     hg init r3

  >     cd r3

  >     for x in g h i ; do

  >         echo $x > $x

  >         hg add $x

  >         hg ci -m $x

  >     done

  >     cd ..

  > }

  $ initrepos

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

show the edit commands offered by outgoing

  $ cd r2

  $ HGEDITOR=cat hg histedit --outgoing ../r | grep -v comparing | grep -v searching

  pick 055a42cdd887 3 d

  pick e860deea161a 4 e

  pick 652413bf663e 5 f

  # Edit history between 055a42cdd887 and 652413bf663e

  #

  # Commits are listed from least to most recent

  #

  # You can reorder changesets by reordering the lines

  #

  # Commands:

  #

  #  e, edit = use commit, but stop for amending

  #  m, mess = edit commit message without changing commit content

  #  p, pick = use commit

  #  d, drop = remove commit from history

  #  f, fold = use commit, but combine it with the one above

  #  r, roll = like fold, but discard this commit's description

  #

  $ cd ..

show the error from unrelated repos

  $ cd r3

  $ HGEDITOR=cat hg histedit --outgoing ../r | grep -v comparing | grep -v searching

  abort: repository is unrelated

  [1]

  $ cd ..

show the error from unrelated repos

  $ cd r3

  $ HGEDITOR=cat hg histedit --force --outgoing ../r

  comparing with ../r

  searching for changes

  warning: repository is unrelated

  pick 2a4042b45417 0 g

  pick 68c46b4927ce 1 h

  pick 51281e65ba79 2 i

  # Edit history between 2a4042b45417 and 51281e65ba79

  #

  # Commits are listed from least to most recent

  #

  # You can reorder changesets by reordering the lines

  #

  # Commands:

  #

  #  e, edit = use commit, but stop for amending

  #  m, mess = edit commit message without changing commit content

  #  p, pick = use commit

  #  d, drop = remove commit from history

  #  f, fold = use commit, but combine it with the one above

  #  r, roll = like fold, but discard this commit's description

  #

  $ cd ..

test sensitivity to branch in URL:

  $ cd r2

  $ hg -q update 2

  $ hg -q branch foo

  $ hg commit -m 'create foo branch'

  $ HGEDITOR=cat hg histedit --outgoing '../r#foo' | grep -v comparing | grep -v searching

  pick f26599ee3441 6 create foo branch

  # Edit history between f26599ee3441 and f26599ee3441

  #

  # Commits are listed from least to most recent

  #

  # You can reorder changesets by reordering the lines

  #

  # Commands:

  #

  #  e, edit = use commit, but stop for amending

  #  m, mess = edit commit message without changing commit content

  #  p, pick = use commit

  #  d, drop = remove commit from history

  #  f, fold = use commit, but combine it with the one above

  #  r, roll = like fold, but discard this commit's description

  #

test to check number of roots in outgoing revisions

  $ hg -q outgoing -G --template '{node|short}({branch})' '../r'

  @  f26599ee3441(foo)

  o  652413bf663e(default)

  |

  o  e860deea161a(default)

  |

  o  055a42cdd887(default)

  $ HGEDITOR=cat hg -q histedit --outgoing '../r'

  abort: there are ambiguous outgoing revisions

  (see 'hg help histedit' for more detail)

  [255]

  $ hg -q update -C 2

  $ echo aa >> a

  $ hg -q commit -m 'another head on default'

  $ hg -q outgoing -G --template '{node|short}({branch})' '../r#default'

  @  3879dc049647(default)

  o  652413bf663e(default)

  |

  o  e860deea161a(default)

  |

  o  055a42cdd887(default)

  $ HGEDITOR=cat hg -q histedit --outgoing '../r#default'

  abort: there are ambiguous outgoing revisions

  (see 'hg help histedit' for more detail)

  [255]

  $ cd ..