tests/test-bisect

dirstate: fix rebuild; add a test

If rebuild calls invalidate, it will just queue a (re)read of the dirstate
file, while what we really want is to empty the current state.

#!/bin/sh

set -e

echo "[extensions]" >> $HGRCPATH
echo "hbisect=" >> $HGRCPATH

echo % init
hg init

echo % committing changes
count=0
echo > a
while test $count -lt 32 ; do
    echo 'a' >> a
    test $count -eq 0 && hg add
    hg ci -m "msg $count" -d "$count 0"
    echo % committed changeset $count
    count=`expr $count + 1`
done

echo % log
hg log

echo % hg up -C
hg up -C

echo % bisect test
hg bisect init
hg bisect bad
hg bisect good 1
hg bisect good
hg bisect good
hg bisect good
hg bisect bad
hg bisect good