diff --git a/tests/ssl-opt.sh b/tests/ssl-opt.sh
index d22bcca..855e3c0 100755
--- a/tests/ssl-opt.sh
+++ b/tests/ssl-opt.sh
@@ -13873,6 +13873,15 @@
             -s "dumping .client hello, compression. (2 bytes)"
 
 # Handshake defragmentation testing
+requires_openssl_3_x
+requires_protocol_version tls13
+requires_certificate_authentication
+run_test    "Handshake defragmentation on client (no fragmentation, for reference)" \
+            "$O_NEXT_SRV" \
+            "$P_CLI debug_level=4 " \
+            0 \
+            -C "reassembled record" \
+            -C "waiting for more fragments"
 
 requires_openssl_3_x
 requires_protocol_version tls13
@@ -14103,6 +14112,16 @@
 requires_openssl_3_x
 requires_protocol_version tls13
 requires_certificate_authentication
+run_test    "Handshake defragmentation on server (no fragmentation, for reference)." \
+            "$P_SRV debug_level=4 auth_mode=required" \
+            "$O_NEXT_CLI -cert $DATA_FILES_PATH/server5.crt -key $DATA_FILES_PATH/server5.key" \
+            0 \
+            -C "reassembled record" \
+            -C "waiting for more fragments"
+
+requires_openssl_3_x
+requires_protocol_version tls13
+requires_certificate_authentication
 run_test    "Handshake defragmentation on server: len=512, TLS 1.3" \
             "$P_SRV debug_level=4 auth_mode=required" \
             "$O_NEXT_CLI -tls1_3 -max_send_frag 512 -cert $DATA_FILES_PATH/server5.crt -key $DATA_FILES_PATH/server5.key" \