tests/test-verify

mergetools: improve configuration for several merge tools

* meld - provide labels for the three panes
* diffmerge - add registry key for detection, improve arguments
* beyond compare - add linux version
* winmerge - improve arguments
* araxis - add configuration, including registry key for detection
* misc - provide default priorities for more tools

#!/bin/sh

echo % prepare repo
hg init a
cd a
echo "some text" > FOO.txt
echo "another text" > bar.txt
echo "more text" > QUICK.txt
hg add
hg ci -mtest1

echo
echo % verify
hg verify

echo
echo % verify with journal
touch .hg/store/journal
hg verify
rm .hg/store/journal

echo
echo % introduce some bugs in repo
cd .hg/store/data
mv _f_o_o.txt.i X_f_o_o.txt.i
mv bar.txt.i xbar.txt.i
rm _q_u_i_c_k.txt.i

echo
echo % verify
hg verify

cd ..

echo % test revlog corruption
hg init b
cd b

touch a
hg add a
hg ci -m a

echo 'corrupted' > b
dd if=.hg/store/data/a.i of=start bs=1 count=20 2>/dev/null
cat start b > .hg/store/data/a.i

echo
echo % verify
hg verify

exit 0