bio chain test: make two errors noisy

diff --git a/regress/lib/libcrypto/bio/bio_chain.c b/regress/lib/libcrypto/bio/bio_chain.c
index 81f9b82..34c7594 100644 (file)
--- a/regress/lib/libcrypto/bio/bio_chain.c
+++ b/regress/lib/libcrypto/bio/bio_chain.c
@@ -1,4 +1,4 @@
-/*     $OpenBSD: bio_chain.c,v 1.9 2022/12/09 07:47:59 tb Exp $        */
+/*     $OpenBSD: bio_chain.c,v 1.10 2022/12/09 07:53:06 tb Exp $       */
 /*
  * Copyright (c) 2022 Theo Buehler <tb@openbsd.org>
  *
@@ -201,8 +201,12 @@ walk_forward(BIO *start, BIO *end, size_t expected_len, size_t i, size_t j,
        int ret = 0;
 
        if (start == NULL || end == NULL) {
-               if (expected_len != 0)
+               if (expected_len != 0) {
+                       fprintf(stderr, "%s case (%zu, %zu) %s: empty chain "
+                           "with expected length %zu > 0\n",
+                           fn, i, j, description, expected_len);
                        goto err;
+               }
                goto done;
        }
 
@@ -244,8 +248,12 @@ walk_backward(BIO *start, BIO *end, size_t expected_len, size_t i, size_t j,
        int ret = 0;
 
        if (start == NULL || end == NULL) {
-               if (expected_len != 0)
+               if (expected_len != 0) {
+                       fprintf(stderr, "%s case (%zu, %zu) %s: empty chain "
+                           "with expected length %zu > 0\n",
+                           fn, i, j, description, expected_len);
                        goto err;
+               }
                goto done;
        }