tests/test-resolve.t

bundle2: introduce a ``params`` dictionary on unbundled parts

This exposes all parameters the part received into a ``part.params`` dictionary.
This should be much easier to use.

This dictionary itself does not expose the mandatory or advisory aspect of
parameters, but no current users of bundle2 actually enforce any of this logic.
Coming changesets will improve this aspect.

test that a commit clears the merge state.

  $ hg init repo
  $ cd repo

  $ echo foo > file
  $ hg commit -Am 'add file'
  adding file

  $ echo bar >> file
  $ hg commit -Am 'append bar'


create a second head

  $ hg up -C 0
  1 files updated, 0 files merged, 0 files removed, 0 files unresolved
  $ echo baz >> file
  $ hg commit -Am 'append baz'
  created new head

failing merge

  $ hg merge --tool=internal:fail
  0 files updated, 0 files merged, 0 files removed, 1 files unresolved
  use 'hg resolve' to retry unresolved file merges or 'hg update -C .' to abandon
  [1]

resolve -l should contain an unresolved entry

  $ hg resolve -l
  U file

resolving an unknown path emits a warning
  $ hg resolve -m does-not-exist
  arguments do not match paths that need resolved

resolve the failure

  $ echo resolved > file
  $ hg resolve -m file
  no more unresolved files
  $ hg commit -m 'resolved'

resolve -l should be empty

  $ hg resolve -l

resolve -m should abort since no merge in progress
  $ hg resolve -m
  abort: resolve command not applicable when not merging
  [255]

test crashed merge with empty mergestate

  $ mkdir .hg/merge
  $ touch .hg/merge/state

resolve -l, should be empty

  $ hg resolve -l

  $ cd ..