cache-tree: verify valid cache-tree in the test suite

diff --git a/diff-lib.c b/diff-lib.c
index a9f38eb5a3e0e17d111301b581d06876ce5fd510..d5bbb7ea509f1ad15559f5af12dd0846648c2d05 100644 (file)
--- a/diff-lib.c
+++ b/diff-lib.c
@@ -518,8 +518,11 @@ static int diff_cache(struct rev_info *revs,
 int run_diff_index(struct rev_info *revs, int cached)
 {
        struct object_array_entry *ent;
-       uint64_t start = getnanotime();
 
+       if (revs->pending.nr != 1)
+               BUG("run_diff_index must be passed exactly one tree");
+
+       trace_performance_enter();
        ent = revs->pending.objects;
        if (diff_cache(revs, &ent->item->oid, ent->name, cached))
                exit(128);
@@ -528,7 +531,7 @@ int run_diff_index(struct rev_info *revs, int cached)
        diffcore_fix_diff_index(&revs->diffopt);
        diffcore_std(&revs->diffopt);
        diff_flush(&revs->diffopt);
-       trace_performance_since(start, "diff-index");
+       trace_performance_leave("diff-index");
        return 0;
 }