tests/test-resolve

merge: fix --preview to show all nodes that will be merged (issue2043).

Formerly, it omitted nodes that were not descendants of the least
common ancestor of the two merge parents, even though those nodes
contribute to the merge.  The new algorithm uses revlog.findmissing()
instead of ancestor() + nodesbetween().

#!/bin/sh

# test that a commit clears the merge state.

hg init repo
cd repo

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

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

echo % create a second head
hg up -C 0
echo baz >> file
hg commit -Am 'append baz'

echo % failing merge
HGMERGE=internal:fail hg merge

echo resolved > file
hg resolve -m file
hg commit -m 'resolved'

echo % resolve -l, should be empty
hg resolve -l