view tests/test-simplemerge-cmd @ 5096:ad6b97132b81

merge: fix a copy detection bug (issue672)

When merging rev1 and rev2, we want to search for copies that happened
in rev1 but not in rev2 and vice-versa.  We were starting the search at
rev1/rev2 and then going back, stopping as soon as we reached the revno
of the ancestor, but that can miss some cases (see the new
test-issue672).

Now we calculate the revisions that are ancestors of rev1 or rev2 (but
not both) and make sure the search doesn't stop too early.

Simplified test provided by mpm, based on a test case provided by
Edward Lee.

#!/bin/sh

cp "$TESTDIR"/../contrib/simplemerge .

echo base > base

echo local > local
cat base >> local
cp local orig

cat base > other
echo other >> other

echo '% changing local directly'
python simplemerge local base other && echo "merge succeeded"
cat local
cp orig local

echo '% printing to stdout'
python simplemerge -p local base other
echo ' local:'
cat local

echo '% conflicts'
cp base conflict-local
cp other conflict-other
echo not other >> conflict-local
echo end >> conflict-local
echo end >> conflict-other
python simplemerge -p conflict-local base conflict-other || echo "merge failed"

echo '% --no-minimal'
python simplemerge -p --no-minimal conflict-local base conflict-other

echo '% 1 label'
python simplemerge -p -L foo conflict-local base conflict-other

echo '% 2 labels'
python simplemerge -p -L foo -L bar conflict-local base conflict-other

echo '% too many labels'
python simplemerge -p -L foo -L bar -L baz conflict-local base conflict-other

echo '% binary file'
python -c "f = file('binary-local', 'w'); f.write('\x00'); f.close()"
cat orig >> binary-local
python simplemerge -p binary-local base other

echo '% binary file --text'
python simplemerge -a -p binary-local base other

echo '% help'
python simplemerge --help

echo '% wrong number of arguments'
python simplemerge

echo '% bad option'
python simplemerge --foo -p local base other

exit 0