$ status() {

  >     [ $? -ne 0 ] && echo "failed."

  >     echo "--- status ---"

  >     hg st -A file1 file2

  >     for file in file1 file2; do

  >         if [ -f $file ]; then

  >             echo "--- $file ---"

  >             cat $file

  >         else

  >             echo "*** $file does not exist"

  >         fi

  >     done

  > }

  $ hg init

  $ echo 1 > file1

  $ echo 2 > file2

  $ hg ci -Am 'added file1 and file2'

  adding file1

  adding file2

  $ hg rm file1

  $ echo changed >> file2

  $ hg ci -m 'removed file1, changed file2'

  $ hg co 0

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

  $ echo changed >> file1

  $ hg rm file2

  $ hg ci -m 'changed file1, removed file2'

  created new head

Non-interactive merge:

  $ hg merge -y || echo "failed"

   local changed file1 which remote deleted

  use (c)hanged version or (d)elete? c

  remote changed file2 which local deleted

  use (c)hanged version or leave (d)eleted? c

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

  (branch merge, don't forget to commit)

  $ status

  --- status ---

  M file2

  C file1

  --- file1 ---

  1

  changed

  --- file2 ---

  2

  changed

Interactive merge:

  $ hg co -C

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

  $ hg merge --config ui.interactive=true <<EOF || echo "failed"

  > c

  > d

  > EOF

   local changed file1 which remote deleted

  use (c)hanged version or (d)elete? remote changed file2 which local deleted

  use (c)hanged version or leave (d)eleted? 0 files updated, 0 files merged, 0 files removed, 0 files unresolved

  (branch merge, don't forget to commit)

  $ status

  --- status ---

  file2: No such file or directory

  C file1

  --- file1 ---

  1

  changed

  *** file2 does not exist

Interactive merge with bad input:

  $ hg co -C

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

  $ hg merge --config ui.interactive=true <<EOF || echo "failed"

  > foo

  > bar

  > d

  > baz

  > c

  > EOF

   local changed file1 which remote deleted

  use (c)hanged version or (d)elete? unrecognized response

   local changed file1 which remote deleted

  use (c)hanged version or (d)elete? unrecognized response

   local changed file1 which remote deleted

  use (c)hanged version or (d)elete? remote changed file2 which local deleted

  use (c)hanged version or leave (d)eleted? unrecognized response

  remote changed file2 which local deleted

  use (c)hanged version or leave (d)eleted? 1 files updated, 0 files merged, 1 files removed, 0 files unresolved

  (branch merge, don't forget to commit)

  $ status

  --- status ---

  M file2

  R file1

  *** file1 does not exist

  --- file2 ---

  2

  changed

Interactive merge with not enough input:

  $ hg co -C

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

  $ hg merge --config ui.interactive=true <<EOF || echo "failed"

  > d

  > EOF

   local changed file1 which remote deleted

  use (c)hanged version or (d)elete? remote changed file2 which local deleted

  use (c)hanged version or leave (d)eleted? abort: response expected

  failed

  $ status

  --- status ---

  file2: No such file or directory

  C file1

  --- file1 ---

  1

  changed

  *** file2 does not exist