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tests: net: conn_mgr_nsos: added
Add basic tests for the NSOS Connectivity Manager implementation. Signed-off-by: Jordan Yates <jordan@embeint.com>
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‎tests/net/conn_mgr_nsos/CMakeLists.txt

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# SPDX-License-Identifier: Apache-2.0
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cmake_minimum_required(VERSION 3.20.0)
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find_package(Zephyr REQUIRED HINTS $ENV{ZEPHYR_BASE})
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project(test_conn_mgr_nsos)
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target_include_directories(app PRIVATE ${ZEPHYR_BASE}/subsys/net/ip)
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target_sources(app PRIVATE src/main.c)

‎tests/net/conn_mgr_nsos/prj.conf

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CONFIG_NETWORKING=y
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CONFIG_NET_TEST=y
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CONFIG_NET_IPV6=y
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CONFIG_NET_IPV4=y
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CONFIG_NET_MAX_CONTEXTS=4
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CONFIG_NET_L2_DUMMY=y
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CONFIG_NET_LOG=y
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CONFIG_NET_CONNECTION_MANAGER=y
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CONFIG_ENTROPY_GENERATOR=y
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CONFIG_TEST_RANDOM_GENERATOR=y
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CONFIG_ZTEST=y
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CONFIG_ETH_NATIVE_POSIX=n
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CONFIG_NET_DRIVERS=y
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CONFIG_NET_SOCKETS=y
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CONFIG_NET_SOCKETS_OFFLOAD=y
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CONFIG_NET_NATIVE_OFFLOADED_SOCKETS=y
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CONFIG_NET_NATIVE_OFFLOADED_SOCKETS_CONNECTIVITY_SIM=y
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CONFIG_HEAP_MEM_POOL_SIZE=1024

‎tests/net/conn_mgr_nsos/src/main.c

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/*
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* Copyright (c) 2025 Embeint Inc
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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#include <string.h>
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#include <zephyr/ztest.h>
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#include <zephyr/net/net_if.h>
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#include <zephyr/net/net_event.h>
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#include <zephyr/net/conn_mgr_monitor.h>
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#include <zephyr/net/conn_mgr_connectivity.h>
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K_SEM_DEFINE(l4_connected, 0, 1);
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K_SEM_DEFINE(l4_disconnected, 0, 1);
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static void l4_event_handler(struct net_mgmt_event_callback *cb, uint32_t event,
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struct net_if *iface)
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{
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switch (event) {
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case NET_EVENT_L4_CONNECTED:
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k_sem_give(&l4_connected);
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break;
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case NET_EVENT_L4_DISCONNECTED:
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k_sem_give(&l4_disconnected);
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break;
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default:
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break;
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}
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}
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ZTEST(conn_mgr_nsos, test_conn_mgr_nsos_opt)
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{
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struct net_if *iface = net_if_get_default();
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k_timeout_t conn_delay;
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size_t optlen;
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/* Default delay is 1 second */
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optlen = sizeof(conn_delay);
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zassert_equal(0, conn_mgr_if_get_opt(iface, 0, &conn_delay, &optlen));
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zassert_equal(sizeof(conn_delay), optlen);
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zassert_true(K_TIMEOUT_EQ(K_SECONDS(1), conn_delay));
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/* Delay can be updated */
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conn_delay = K_SECONDS(2);
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zassert_equal(0, conn_mgr_if_set_opt(iface, 0, &conn_delay, sizeof(conn_delay)));
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optlen = sizeof(conn_delay);
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zassert_equal(0, conn_mgr_if_get_opt(iface, 0, &conn_delay, &optlen));
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zassert_equal(sizeof(conn_delay), optlen);
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zassert_true(K_TIMEOUT_EQ(K_SECONDS(2), conn_delay));
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/* Reset to 1 second */
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conn_delay = K_SECONDS(1);
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zassert_equal(0, conn_mgr_if_set_opt(iface, 0, &conn_delay, sizeof(conn_delay)));
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}
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ZTEST(conn_mgr_nsos, test_conn_mgr_nsos_opt_error)
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{
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struct net_if *iface = net_if_get_default();
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k_timeout_t conn_delay = K_SECONDS(1);
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size_t optlen;
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/* Bad option */
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optlen = sizeof(conn_delay);
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zassert_equal(-EINVAL, conn_mgr_if_get_opt(iface, 1, &conn_delay, &optlen));
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zassert_equal(-EINVAL, conn_mgr_if_set_opt(iface, 1, &conn_delay, sizeof(conn_delay)));
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/* Bad output size */
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optlen = sizeof(conn_delay) - 1;
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zassert_equal(-EINVAL, conn_mgr_if_get_opt(iface, 0, &conn_delay, &optlen));
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zassert_equal(-EINVAL, conn_mgr_if_set_opt(iface, 0, &conn_delay, sizeof(conn_delay) - 1));
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}
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ZTEST(conn_mgr_nsos, test_conn_mgr_nsos)
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{
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struct net_if *iface = net_if_get_default();
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k_timeout_t conn_delay, conn_delay_default;
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size_t optlen = sizeof(conn_delay_default);
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/* Store default delay */
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zassert_equal(0, conn_mgr_if_get_opt(iface, 0, &conn_delay_default, &optlen));
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/* Not connecting by default */
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zassert_equal(-EAGAIN, k_sem_take(&l4_connected, K_SECONDS(2)));
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/* Trigger the connection */
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zassert_equal(0, conn_mgr_if_connect(iface));
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/* Default time to connection is 1 second */
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zassert_equal(-EAGAIN, k_sem_take(&l4_connected, K_MSEC(950)));
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zassert_equal(0, k_sem_take(&l4_connected, K_MSEC(100)));
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zassert_true(net_if_is_up(iface));
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/* Small sleep to allow for network stack to return to idle */
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k_sleep(K_MSEC(500));
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/* Disconnect (actioned immediately) */
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zassert_equal(0, conn_mgr_if_disconnect(iface));
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zassert_equal(0, k_sem_take(&l4_disconnected, K_MSEC(100)));
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zassert_false(net_if_is_up(iface));
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/* Try again with custom timeout */
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conn_delay = K_MSEC(500);
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zassert_equal(0, conn_mgr_if_set_opt(iface, 0, &conn_delay, sizeof(conn_delay)));
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/* Trigger the connection */
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zassert_equal(0, conn_mgr_if_connect(iface));
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/* Should connect after 500ms this time */
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zassert_equal(-EAGAIN, k_sem_take(&l4_connected, K_MSEC(450)));
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zassert_equal(0, k_sem_take(&l4_connected, K_MSEC(100)));
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zassert_true(net_if_is_up(iface));
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/* Small sleep to allow for network stack to return to idle */
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k_sleep(K_MSEC(500));
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/* Disconnect (actioned immediately) */
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zassert_equal(0, conn_mgr_if_disconnect(iface));
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zassert_equal(0, k_sem_take(&l4_disconnected, K_MSEC(100)));
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zassert_false(net_if_is_up(iface));
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/* Reset to default value */
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zassert_equal(
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0, conn_mgr_if_set_opt(iface, 0, &conn_delay_default, sizeof(conn_delay_default)));
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}
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static void test_init(void *state)
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{
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k_sem_take(&l4_connected, K_NO_WAIT);
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k_sem_take(&l4_disconnected, K_NO_WAIT);
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}
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static void test_after(void *fixture)
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{
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conn_mgr_all_if_disconnect(false);
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conn_mgr_all_if_down(false);
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}
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static void *testsuite_init(void)
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{
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static struct net_mgmt_event_callback l4_callback;
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struct net_if *iface = net_if_get_default();
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struct in_addr addr;
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net_mgmt_init_event_callback(&l4_callback, l4_event_handler,
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NET_EVENT_L4_CONNECTED | NET_EVENT_L4_DISCONNECTED);
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net_mgmt_add_event_callback(&l4_callback);
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conn_mgr_all_if_down(false);
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/* Add an IP address so that NET_EVENT_L4_CONNECTED can trigger */
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net_addr_pton(AF_INET, "192.0.2.1", &addr);
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net_if_ipv4_addr_add(iface, &addr, NET_ADDR_MANUAL, 0);
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return NULL;
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}
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ZTEST_SUITE(conn_mgr_nsos, NULL, testsuite_init, test_init, test_after, NULL);

‎tests/net/conn_mgr_nsos/testcase.yaml

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common:
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min_ram: 16
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depends_on: netif
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tests:
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net.conn_mgr.nsos:
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platform_allow:
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- native_sim
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tags:
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- net
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- iface

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