update tests

Signed-off-by: Jerry Yu <jerry.h.yu@arm.com>
diff --git a/tests/src/test_helpers/ssl_helpers.c b/tests/src/test_helpers/ssl_helpers.c
index 54b57be..f7cd103 100644
--- a/tests/src/test_helpers/ssl_helpers.c
+++ b/tests/src/test_helpers/ssl_helpers.c
@@ -1633,6 +1633,7 @@
 }
 #endif /* MBEDTLS_SSL_SOME_SUITES_USE_MAC */
 
+#if defined(MBEDTLS_SSL_PROTO_TLS1_2)
 int mbedtls_test_ssl_tls12_populate_session(mbedtls_ssl_session *session,
                                             int ticket_len,
                                             const char *crt_file)
@@ -1729,6 +1730,7 @@
 
     return 0;
 }
+#endif /* MBEDTLS_SSL_PROTO_TLS1_2 */
 
 #if defined(MBEDTLS_SSL_PROTO_TLS1_3)
 int mbedtls_test_ssl_tls13_populate_session(mbedtls_ssl_session *session,
@@ -1752,14 +1754,14 @@
 
 #if defined(MBEDTLS_HAVE_TIME)
     if (session->endpoint == MBEDTLS_SSL_IS_SERVER) {
-        session->start = mbedtls_time(NULL) - 42;
+        session->ticket_creation = mbedtls_ms_time() - 42;
     }
 #endif
 
 #if defined(MBEDTLS_SSL_CLI_C)
     if (session->endpoint == MBEDTLS_SSL_IS_CLIENT) {
 #if defined(MBEDTLS_HAVE_TIME)
-        session->ticket_received = mbedtls_time(NULL) - 40;
+        session->ticket_received = mbedtls_ms_time() - 40;
 #endif
         session->ticket_lifetime = 0xfedcba98;