tests/test-merge-prompt

hgfixes: add a fixer to convert plain strings to bytestrings

This patch implements a 2to3 fixer that converts all plain strings in a python
source file to byte strings syntax. Example:

foo = 'Normal string'

would become

foo = b'Normal string'

The motivation behind this fixer can be found in
http://selenic.com/pipermail/mercurial-devel/2010-June/022363.html or, in other
words: the current hg source assumes that _most_ strings are "meant" to be byte
sequences, so it makes sense to make the convertion implemented by this patch.

As mentioned above, not all mercurial modules want to use strings as bytes,
examples include i18n (which uses unicode), and demandimport (in py3k, module
names are normal strings, thus unicode, and there's no need for a convertion).
Therefore, these modules are blacklisted in the fixer. There are also a few
functions that can take only unicode arguments, thus the convertion shouldn't
be done for those.

#!/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