$ cat >> $HGRCPATH <<EOF

  > [defaults]

  > amend=-d "0 0"

  > fold=-d "0 0"

  > [web]

  > push_ssl = false

  > allow_push = *

  > [phases]

  > publish = False

  > [diff]

  > git = 1

  > unified = 0

  > [ui]

  > logtemplate = {rev}:{node|short}@{branch}({phase}) {desc|firstline}\n

  > [extensions]

  > hgext.graphlog=

  > EOF

  $ mkcommit() {

  >    echo "$1" > "$1"

  >    hg add "$1"

  >    hg ci -m "add $1"

  > }

  $ mkstack() {

  >    # Creates a stack of commit based on $1 with messages from $2, $3 ..

  >    hg update "$1" -C

  >    shift

  >    mkcommits $*

  > }

  $ mkcommits() {

  >   for i in $@; do mkcommit $i ; done

  > }

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

Test instability resolution for a changeset unstable because its parent

is obsolete with one successor

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

  $ hg init test1

  $ cd test1

  $ mkcommits _a _b _c

  $ hg up "desc(_b)"

  0 files updated, 0 files merged, 1 files removed, 0 files unresolved

  $ hg amend -m "bprime"

  1 new unstable changesets

  $ hg log -G

  @  3:36050226a9b9@default(draft) bprime

  |

  | o  2:102002290587@default(draft) add _c

  | |

  | x  1:37445b16603b@default(draft) add _b

  |/

  o  0:135f39f4bd78@default(draft) add _a

  $ hg evo --all --any --unstable

  move:[2] add _c

  atop:[3] bprime

  working directory is now at fdcf3523a74d

  $ hg log -G

  @  4:fdcf3523a74d@default(draft) add _c

  |

  o  3:36050226a9b9@default(draft) bprime

  |

  o  0:135f39f4bd78@default(draft) add _a

  $ cd ..

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

Test instability resolution for a merge changeset unstable because one

of its parent is obsolete

Not supported yet

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

  $ hg init test2

  $ cd test2

  $ mkcommit base

  $ mkcommits _a

  $ hg up "desc(base)"

  0 files updated, 0 files merged, 1 files removed, 0 files unresolved

  $ mkcommit _c

  created new head

  $ hg merge "desc(_a)" >/dev/null

  $ hg commit -m "merge"

  $ hg up "desc(_a)"

  0 files updated, 0 files merged, 1 files removed, 0 files unresolved

  $ hg amend -m "aprime"

  1 new unstable changesets

  $ hg log -G

  @  4:47127ea62e5f@default(draft) aprime

  |

  | o    3:6b4280e33286@default(draft) merge

  | |\

  +---o  2:474da87dd33b@default(draft) add _c

  | |

  | x  1:b3264cec9506@default(draft) add _a

  |/

  o  0:b4952fcf48cf@default(draft) add base

  $ hg evo --all --any --unstable

  move:[3] merge

  atop:[4] aprime

  working directory is now at 0bf3f3a59c8c

  $ hg log -G

  @    5:0bf3f3a59c8c@default(draft) merge

  |\

  | o  4:47127ea62e5f@default(draft) aprime

  | |

  o |  2:474da87dd33b@default(draft) add _c

  |/

  o  0:b4952fcf48cf@default(draft) add base

  $ cd ..

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

Test instability resolution for a merge changeset unstable because both

of its parent are obsolete

Not supported yet

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

  $ hg init test3

  $ cd test3

  $ mkcommit base

  $ mkcommits _a

  $ hg up "desc(base)"

  0 files updated, 0 files merged, 1 files removed, 0 files unresolved

  $ mkcommit _c

  created new head

  $ hg merge "desc(_a)" >/dev/null

  $ hg commit -m "merge"

  $ hg up "desc(_a)"

  0 files updated, 0 files merged, 1 files removed, 0 files unresolved

  $ hg amend -m "aprime"

  1 new unstable changesets

  $ hg up "desc(_c)"

  1 files updated, 0 files merged, 1 files removed, 0 files unresolved

  $ hg amend -m "cprime"

  $ hg log -G

  @  5:2db39fda7e2f@default(draft) cprime

  |

  | o  4:47127ea62e5f@default(draft) aprime

  |/

  | o    3:6b4280e33286@default(draft) merge

  | |\

  +---x  2:474da87dd33b@default(draft) add _c

  | |

  | x  1:b3264cec9506@default(draft) add _a

  |/

  o  0:b4952fcf48cf@default(draft) add base

  $ hg evo --all --any --unstable

  warning: no support for evolving merge changesets with two obsolete parents yet

  (Redo the merge (6b4280e33286) and use `hg prune <old> --succ <new>` to obsolete the old one)

  $ hg log -G

  @  5:2db39fda7e2f@default(draft) cprime

  |

  | o  4:47127ea62e5f@default(draft) aprime

  |/

  | o    3:6b4280e33286@default(draft) merge

  | |\

  +---x  2:474da87dd33b@default(draft) add _c

  | |

  | x  1:b3264cec9506@default(draft) add _a

  |/

  o  0:b4952fcf48cf@default(draft) add base

  $ cd ..

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

Test instability resolution for a changeset unstable because its parent

is obsolete with multiple successors all in one chain (simple split)

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

  $ hg init test4

  $ cd test4

  $ mkcommits _a _b _c

  $ hg up "desc(_a)"

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

  $ mkcommits bprimesplit1 bprimesplit2

  created new head

  $ hg prune "desc(_b)" -s "desc(bprimesplit1) + desc(bprimesplit2)" --split

  1 changesets pruned

  1 new unstable changesets

  $ hg log -G

  @  4:2a4ccc0bb20c@default(draft) add bprimesplit2

  |

  o  3:8b87864bd0f4@default(draft) add bprimesplit1

  |

  | o  2:102002290587@default(draft) add _c

  | |

  | x  1:37445b16603b@default(draft) add _b

  |/

  o  0:135f39f4bd78@default(draft) add _a

  $ hg evo --all --any --unstable

  move:[2] add _c

  atop:[4] add bprimesplit2

  working directory is now at 387cc1e837d7

  $ hg log -G

  @  5:387cc1e837d7@default(draft) add _c

  |

  o  4:2a4ccc0bb20c@default(draft) add bprimesplit2

  |

  o  3:8b87864bd0f4@default(draft) add bprimesplit1

  |

  o  0:135f39f4bd78@default(draft) add _a

  $ cd ..

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

Test instability resolution for a changeset unstable because its parent

is obsolete with multiple successors on one branches but in reverse

order (cross-split).

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

  $ hg init test5

  $ cd test5

  $ mkcommits _a _b _c

  $ hg up "desc(_a)"

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

  $ mkcommits bprimesplit1 bprimesplit2

  created new head

  $ hg prune "desc(_b)" -s "desc(bprimesplit1) + desc(bprimesplit2)" --split

  1 changesets pruned

  1 new unstable changesets

  $ hg up "desc(_a)"

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

  $ mkcommits bsecondsplit1 bsecondsplit2

  created new head

  $ hg prune "desc(bprimesplit1)" -s "desc(bsecondsplit2)"

  1 changesets pruned

  1 new unstable changesets

  $ hg prune "desc(bprimesplit2)" -s "desc(bsecondsplit1)"

  1 changesets pruned

  $ hg log -G

  @  6:59b942dbda14@default(draft) add bsecondsplit2

  |

  o  5:8ffdae67d696@default(draft) add bsecondsplit1

  |

  | o  2:102002290587@default(draft) add _c

  | |

  | x  1:37445b16603b@default(draft) add _b

  |/

  o  0:135f39f4bd78@default(draft) add _a

  $ hg evo --all --any --unstable

  move:[2] add _c

  atop:[6] add bsecondsplit2

  working directory is now at 98e3f21461ff

  $ hg log -G

  @  7:98e3f21461ff@default(draft) add _c

  |

  o  6:59b942dbda14@default(draft) add bsecondsplit2

  |

  o  5:8ffdae67d696@default(draft) add bsecondsplit1

  |

  o  0:135f39f4bd78@default(draft) add _a

  $ cd ..

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

Test instability resolution for a changeset unstable because its parent

is obsolete with multiple successors on two branches.

Not supported yet

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

  $ hg init test6

  $ cd test6

  $ mkcommits _a _b _c

  $ hg up "desc(_a)"

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

  $ mkcommit bprimesplit1

  created new head

  $ hg up "desc(_a)"

  0 files updated, 0 files merged, 1 files removed, 0 files unresolved

  $ mkcommit bprimesplit2

  created new head

  $ hg prune "desc(_b)" -s "desc(bprimesplit1) + desc(bprimesplit2)" --split

  1 changesets pruned

  1 new unstable changesets

  $ hg log -G

  @  4:3c69ea6aa93e@default(draft) add bprimesplit2

  |

  | o  3:8b87864bd0f4@default(draft) add bprimesplit1

  |/

  | o  2:102002290587@default(draft) add _c

  | |

  | x  1:37445b16603b@default(draft) add _b

  |/

  o  0:135f39f4bd78@default(draft) add _a

  $ hg evo --all --any --unstable

  cannot solve split accross two branches

  $ hg log -G

  @  4:3c69ea6aa93e@default(draft) add bprimesplit2

  |

  | o  3:8b87864bd0f4@default(draft) add bprimesplit1

  |/

  | o  2:102002290587@default(draft) add _c

  | |

  | x  1:37445b16603b@default(draft) add _b

  |/

  o  0:135f39f4bd78@default(draft) add _a

  $ cd ..