t/helper/ref-store: initialize oid in resolve-ref

This will print $ZERO_OID when asking for a non-existent ref from the
test-helper.

Since resolve-ref provides direct access to refs_resolve_ref_unsafe(), it
provides a reliable mechanism for accessing REFNAME, while avoiding the implicit
resolution to refs/heads/REFNAME.

Reviewed-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Han-Wen Nienhuys <hanwen@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

diff --git a/t/helper/test-ref-store.c b/t/helper/test-ref-store.c
index bba5f841c6ab00362aa81313fcf3ef3fa7ddfe9d..b314b81a45b27cac548e1c5628f3dd96685ceb09 100644 (file)
--- a/t/helper/test-ref-store.c
+++ b/t/helper/test-ref-store.c
@@ -118,7 +118,7 @@ static int cmd_for_each_ref(struct ref_store *refs, const char **argv)
 
 static int cmd_resolve_ref(struct ref_store *refs, const char **argv)
 {
-       struct object_id oid;
+       struct object_id oid = *null_oid();
        const char *refname = notnull(*argv++, "refname");
        int resolve_flags = arg_flags(*argv++, "resolve-flags");
        int flags;