Add more tests for keying material export

Signed-off-by: Max Fillinger <maximilian.fillinger@foxcrypto.com>
diff --git a/tests/include/test/ssl_helpers.h b/tests/include/test/ssl_helpers.h
index 3ba314f..7722781 100644
--- a/tests/include/test/ssl_helpers.h
+++ b/tests/include/test/ssl_helpers.h
@@ -590,6 +590,13 @@
     int msg_len_2, const int expected_fragments_2);
 
 #if defined(MBEDTLS_SSL_HANDSHAKE_WITH_CERT_ENABLED)
+int mbedtls_test_ssl_do_handshake_with_endpoints(
+    mbedtls_test_ssl_endpoint *server_ep,
+    mbedtls_test_ssl_endpoint *client_ep,
+    mbedtls_ssl_protocol_version proto);
+#endif /* defined(MBEDTLS_SSL_HANDSHAKE_WITH_CERT_ENABLED) */
+
+#if defined(MBEDTLS_SSL_HANDSHAKE_WITH_CERT_ENABLED)
 void mbedtls_test_ssl_perform_handshake(
     mbedtls_test_handshake_test_options *options);
 #endif /* MBEDTLS_SSL_HANDSHAKE_WITH_CERT_ENABLED */