We require the caller to pass both the old and new expected object ID to our `test-tool ref-store update-ref` helper. When trying to update a symbolic reference though it's impossible to specify the expected object ID, which means that the test would instead have to force-update the reference. This is currently impossible though. Update the helper to optionally skip verification of the old object ID in case the test passes in an empty old object ID as input. Signed-off-by: Patrick Steinhardt --- t/helper/test-ref-store.c | 11 +++++++---- 1 file changed, 7 insertions(+), 4 deletions(-) diff --git a/t/helper/test-ref-store.c b/t/helper/test-ref-store.c index 48552e6a9e0..702ec1f128a 100644 --- a/t/helper/test-ref-store.c +++ b/t/helper/test-ref-store.c @@ -298,16 +298,19 @@ static int cmd_update_ref(struct ref_store *refs, const char **argv) const char *new_sha1_buf = notnull(*argv++, "new-sha1"); const char *old_sha1_buf = notnull(*argv++, "old-sha1"); unsigned int flags = arg_flags(*argv++, "flags", transaction_flags); - struct object_id old_oid; + struct object_id old_oid, *old_oid_ptr = NULL; struct object_id new_oid; - if (get_oid_hex(old_sha1_buf, &old_oid)) - die("cannot parse %s as %s", old_sha1_buf, the_hash_algo->name); + if (*old_sha1_buf) { + if (get_oid_hex(old_sha1_buf, &old_oid)) + die("cannot parse %s as %s", old_sha1_buf, the_hash_algo->name); + old_oid_ptr = &old_oid; + } if (get_oid_hex(new_sha1_buf, &new_oid)) die("cannot parse %s as %s", new_sha1_buf, the_hash_algo->name); return refs_update_ref(refs, msg, refname, - &new_oid, &old_oid, + &new_oid, old_oid_ptr, flags, UPDATE_REFS_DIE_ON_ERR); } -- 2.42.0