tests/test-merge-prompt

rebase: make sure the newancestor is used during the whole update
(issue1561)

Before this change, newancestor was used only once as a replacement
for ancestor.ancestor, but merge.update calls ancestor.ancestor
several times, so it ends up with the "wrong" ancestor (the real
ancestor, but we want the parent of the rebased changeset for all but
the first rebased changeset).

Added a new test case for this: test-rebase-newancestor.

Also, in one scenario in test-rebase-collapse, there was a spurious
conflict caused by the same issue, so that test case was fixed by
removing the now unneeded conflict resolution and the output was
adapted accordingly.

#!/bin/sh
#
# Test for b5605d88dc27
#  Make ui.prompt repeat on "unrecognized response" again (issue897)
# and for 840e2b315c1f
#  Fix misleading error and prompts during update/merge (issue556)

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 repo
cd repo
echo 1 > file1
echo 2 > file2
hg ci -Am 'added file1 and file2' # rev 0

hg rm file1
echo changed >> file2
hg ci -m 'removed file1, changed file2' # rev 1

hg co 0
echo changed >> file1
hg rm file2
hg ci -m 'changed file1, removed file2' # rev 2

echo
echo "# non-interactive merge"
hg merge -y || echo "failed"
status

echo
echo "# interactive merge"
hg co -C
hg merge --config ui.interactive=true <<EOF || echo "failed"
c
d
EOF
status

echo
echo "# interactive merge with bad input"
hg co -C
hg merge --config ui.interactive=true <<EOF || echo "failed"
foo
bar
d
baz
c
EOF
status

echo
echo "# interactive merge with not enough input"
hg co -C
hg merge --config ui.interactive=true <<EOF || echo "failed"
d
EOF
status