Add test script for RSA signature

Signed-off-by: XiaokangQian <xiaokang.qian@arm.com>
diff --git a/tests/ssl-opt.sh b/tests/ssl-opt.sh
index 1ac34da..56d8d61 100755
--- a/tests/ssl-opt.sh
+++ b/tests/ssl-opt.sh
@@ -8835,6 +8835,36 @@
             -c "<= parse finished message" \
             -c "HTTP/1.0 200 ok"
 
+requires_openssl_tls1_3
+requires_config_enabled MBEDTLS_SSL_PROTO_TLS1_3_EXPERIMENTAL
+requires_config_disabled MBEDTLS_USE_PSA_CRYPTO
+run_test    "TLS1.3: Test client hello msg work - openssl" \
+            "$O_NEXT_SRV -tls1_3 -msg -no_middlebox" \
+            "$P_CLI debug_level=3 min_version=tls1_3 max_version=tls1_3 force_ciphersuite=TLS-ECDHE-RSA-WITH-AES-128-GCM-SHA256 curves=secp256r1" \
+            1 \
+            -c "SSL - The requested feature is not available" \
+            -s "ServerHello"                \
+            -c "tls1_3 client state: 0"     \
+            -c "tls1_3 client state: 2"     \
+            -c "tls1_3 client state: 19"    \
+            -c "tls1_3 client state: 5"     \
+            -c "tls1_3 client state: 3"     \
+            -c "tls1_3 client state: 9"     \
+            -c "tls1_3 client state: 13"    \
+            -c "tls1_3 client state: 7"     \
+            -c "tls1_3 client state: 20"    \
+            -c "tls1_3 client state: 11"    \
+            -c "tls1_3 client state: 14"    \
+            -c "tls1_3 client state: 15"    \
+            -c "<= ssl_tls1_3_process_server_hello" \
+            -c "server hello, chosen ciphersuite: ( 1301 ) - TLS1-3-AES-128-GCM-SHA256" \
+            -c "=> ssl_tls1_3_process_server_hello" \
+            -c "<= parse encrypted extensions"      \
+            -c "Certificate verification flags clear" \
+            -c "=> parse certificate verify"          \
+            -c "<= parse certificate verify"          \
+            -c "mbedtls_ssl_tls13_process_certificate_verify() returned 0"
+
 requires_gnutls_tls1_3
 requires_gnutls_next_no_ticket
 requires_gnutls_next_disable_tls13_compat