Add test for rdp_queue

Add test suite for csp_rdp_queue.

Signed-off-by: Yasushi SHOJI <yashi@spacecubics.com>

CMakeLists.txt

@@ -10,4 +10,5 @@ target_sources(app PRIVATE
   src/buffer.c
   src/crc32.c
   src/queue.c
+  src/rdp_queue.c
 )

src/rdp_queue.c

@@ -0,0 +1,49 @@
+/*
+ * Copyright (c) 2024 Space Cubics, LLC.
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+#include <zephyr/ztest.h>
+#include <csp/csp.h>
+
+void csp_rdp_queue_init(void);
+int csp_rdp_queue_tx_size(void);
+int csp_rdp_queue_rx_size(void);
+void csp_rdp_queue_tx_add(csp_conn_t * conn, csp_packet_t * packet);
+void csp_rdp_queue_rx_add(csp_conn_t * conn, csp_packet_t * packet);
+csp_packet_t * csp_rdp_queue_tx_get(csp_conn_t * conn);
+csp_packet_t * csp_rdp_queue_rx_get(csp_conn_t * conn);
+
+ZTEST(rdp_queue, test_rdp_queue_emtpy)
+{
+	csp_rdp_queue_init();
+	zassert_equal(0, csp_rdp_queue_tx_size());
+	zassert_equal(0, csp_rdp_queue_rx_size());
+	zassert_is_null(csp_rdp_queue_tx_get(NULL));
+	zassert_is_null(csp_rdp_queue_rx_get(NULL));
+}
+
+ZTEST(rdp_queue, test_rdp_queue_add_and_get)
+{
+	csp_packet_t *p1;
+	csp_packet_t *p2;
+
+	csp_rdp_queue_init();
+	zassert_equal(0, csp_rdp_queue_tx_size());
+	zassert_equal(0, csp_rdp_queue_rx_size());
+
+	csp_buffer_init();
+	p1 = csp_buffer_get(0);
+	zassert_not_null(p1);
+	csp_rdp_queue_tx_add(NULL, p1);
+	zassert_equal(1, csp_rdp_queue_tx_size());
+
+	p2 = csp_rdp_queue_tx_get(NULL);
+	zassert_equal(0, csp_rdp_queue_tx_size());
+	zassert_not_null(p2);
+	printf("%p %p\n", p1, p2);
+	zassert_equal_ptr(p1, p2);
+}
+
+ZTEST_SUITE(rdp_queue, NULL, NULL, NULL, NULL, NULL);