test_expect_success 'rebase against master' '
git rebase master'
-test_expect_failure \
+test_expect_success \
'the rebase operation should not have destroyed author information' \
- 'git log | grep "Author:" | grep "<>"'
+ '! git log | grep "Author:" | grep "<>"'
test_expect_success 'rebase after merge master' '
git reset --hard topic &&