diff --git a/src/transport/test.h b/src/transport/test.h
new file mode 100644
index 0000000..7a01527
--- /dev/null
+++ b/src/transport/test.h
@@ -0,0 +1,61 @@
+/* SPDX-License-Identifier: Apache-2.0 OR GPL-2.0-or-later */
+#ifndef LIBPLDM_TRANSPORT_TEST_H
+#define LIBPLDM_TRANSPORT_TEST_H
+
+#include "libpldm/base.h"
+
+#include <stddef.h>
+#include <stdint.h>
+#include <sys/timerfd.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+enum pldm_transport_test_element {
+	PLDM_TRANSPORT_TEST_ELEMENT_MSG_SEND,
+	PLDM_TRANSPORT_TEST_ELEMENT_MSG_RECV,
+	PLDM_TRANSPORT_TEST_ELEMENT_LATENCY,
+};
+
+struct pldm_transport_test_msg_send {
+	pldm_tid_t dst;
+	const void *msg;
+	size_t len;
+};
+
+struct pldm_transport_test_msg_recv {
+	pldm_tid_t src;
+	const void *msg;
+	size_t len;
+};
+
+struct pldm_transport_test_descriptor {
+	enum pldm_transport_test_element type;
+	union {
+		struct pldm_transport_test_msg_send send_msg;
+		struct pldm_transport_test_msg_recv recv_msg;
+		struct itimerspec latency;
+	};
+};
+
+struct pldm_transport_test;
+
+int pldm_transport_test_init(struct pldm_transport_test **ctx,
+			     const struct pldm_transport_test_descriptor *seq,
+			     size_t count);
+void pldm_transport_test_destroy(struct pldm_transport_test *ctx);
+struct pldm_transport *
+pldm_transport_test_core(struct pldm_transport_test *ctx);
+
+#if PLDM_HAS_POLL
+struct pollfd;
+int pldm_transport_test_init_pollfd(struct pldm_transport *ctx,
+				    struct pollfd *pollfd);
+#endif
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif