tests/test-issue322

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
# http://mercurial.selenic.com/bts/issue322

echo % file replaced with directory

hg init a
cd a
echo a > a
hg commit -Ama
rm a
mkdir a
echo a > a/a

echo % should fail - would corrupt dirstate
hg add a/a

cd ..

echo % directory replaced with file

hg init c
cd c
mkdir a
echo a > a/a
hg commit -Ama

rm -r a
echo a > a

echo % should fail - would corrupt dirstate
hg add a

cd ..

echo % directory replaced with file

hg init d
cd d
mkdir b
mkdir b/c
echo a > b/c/d
hg commit -Ama
rm -r b
echo a > b

echo % should fail - would corrupt dirstate
hg add b

exit 0