view tests/test-confused-revert @ 2703:d32b31e88391

run-tests.py: fix diff output when test-foo.out doesn't exist.

Previously, if test-foo.out doesn't exist and test-foo outputs
something, the first line of the diff will look like this:

-+changeset:   0:0acdaf898367

(note the leading "-")

#!/bin/sh

hg init
echo foo > a
hg add a
hg commit -m "1" -d "1000000 0"

echo bar > b
hg add b
hg remove a

echo "%%% should show a removed and b added"
hg status

echo "reverting..."
hg revert

echo "%%% should show b unknown and a back to normal"
hg status

rm b

hg co -C 0
echo foo-a > a
hg commit -m "2a" -d "1000000 0"

hg co -C 0
echo foo-b > a
hg commit -m "2b" -d "1000000 0"

HGMERGE=true hg merge 1

echo "%%% should show foo-b"
cat a

echo bar > b
hg add b
rm a
hg remove a

echo "%%% should show a removed and b added"
hg status

echo "%%% revert should fail"
hg revert

echo "%%% revert should be ok now"
hg revert -r2

echo "%%% should show b unknown and a marked modified (merged)"
hg status

echo "%%% should show foo-b"
cat a