rerere: fix overeager gc

diff --git a/t/t9151-svn-mergeinfo.sh b/t/t9151-svn-mergeinfo.sh
index f6e00ea30bab3e65c3a1a2c8565216e848229efb..250c651eaecf60103ee442bcfa2a6c65250320ec 100755 (executable)
--- a/t/t9151-svn-mergeinfo.sh
+++ b/t/t9151-svn-mergeinfo.sh
@@ -11,17 +11,18 @@ test_expect_success 'load svn dump' "
        svnadmin load -q '$rawsvnrepo' \
          < '$TEST_DIRECTORY/t9151/svn-mergeinfo.dump' &&
        git svn init --minimize-url -R svnmerge \
+         --rewrite-root=http://svn.example.org \
          -T trunk -b branches '$svnrepo' &&
        git svn fetch --all
        "
 
-test_expect_failure 'all svn merges became git merge commits' '
+test_expect_success 'all svn merges became git merge commits' '
        unmarked=$(git rev-list --parents --all --grep=Merge |
                grep -v " .* " | cut -f1 -d" ")
        [ -z "$unmarked" ]
        '
 
-test_expect_failure 'cherry picks did not become git merge commits' '
+test_expect_success 'cherry picks did not become git merge commits' '
        bad_cherries=$(git rev-list --parents --all --grep=Cherry |
                grep " .* " | cut -f1 -d" ")
        [ -z "$bad_cherries" ]
@@ -33,7 +34,22 @@ test_expect_success 'svn non-merge merge commits did not become git merge commit
        [ -z "$bad_non_merges" ]
        '
 
-test_expect_success 'everything got merged in the end' '
+test_expect_success 'commit made to merged branch is reachable from the merge' '
+       before_commit=$(git rev-list --all --grep="trunk commit before merging trunk to b2")
+       merge_commit=$(git rev-list --all --grep="Merge trunk to b2")
+       not_reachable=$(git rev-list -1 $before_commit --not $merge_commit)
+       [ -z "$not_reachable" ]
+       '
+
+test_expect_success 'merging two branches in one commit is detected correctly' '
+       f1_commit=$(git rev-list --all --grep="make f1 branch from trunk")
+       f2_commit=$(git rev-list --all --grep="make f2 branch from trunk")
+       merge_commit=$(git rev-list --all --grep="Merge f1 and f2 to trunk")
+       not_reachable=$(git rev-list -1 $f1_commit $f2_commit --not $merge_commit)
+       [ -z "$not_reachable" ]
+       '
+
+test_expect_failure 'everything got merged in the end' '
        unmerged=$(git rev-list --all --not master)
        [ -z "$unmerged" ]
        '