rt-thread/components/net/utest/Kconfig

if RT_USING_LWIP
    menu "LwIP Network Unit Testcase"

    config RT_UTEST_TC_USING_LWIP
        bool "lwIP API test"
        help
            Enable lwIP network stack unit tests including DNS resolution,
            TCP/UDP socket operations, and network interface tests

        if RT_UTEST_TC_USING_LWIP

            config RT_UTEST_LWIP_DNS_TEST
                bool "DNS resolution test"
                default y
                help
                    Enable DNS resolution unit tests including gethostbyname()
                    and gethostbyname_r() functions for hostname to IP resolution,
                    as well as getaddrinfo() and freeaddrinfo() for address info
                    retrieval and release. Tests verify successful resolution
                    without hardcoded IP comparisons.

            config RT_UTEST_LWIP_TCP_TEST
                bool "TCP socket test"
                default y
                help
                    Enable TCP socket unit tests including client-server communication
                    with echo functionality, socket creation, binding, listening,
                    accepting connections, data transmission with varying buffer sizes,
                    socket options (TCP_NODELAY, SO_REUSEADDR, SO_REUSEPORT),
                    and connection management (shutdown, close).

            config RT_UTEST_LWIP_UDP_TEST
                bool "UDP socket test"
                default y
                help
                    Enable UDP socket unit tests including datagram transmission
                    and reception, client-server echo communication, socket binding
                    to any port, select() operations with timeout, recvfrom/sendto
                    functions, and timeout handling for receive operations.

            config RT_UTEST_LWIP_ICMP_TEST
                bool "ICMP ping test"
                default y
                help
                    Enable ICMP ping unit tests using raw sockets to send
                    ICMP echo requests and receive echo replies. Tests verify
                    basic ICMP functionality with loopback address (127.0.0.1).

            config RT_UTEST_LWIP_SOCKET_OPT_TEST
                bool "Socket options test"
                default y
                help
                    Enable socket options unit tests including setsockopt()
                    and getsockopt() functions. Tests verify setting and
                    retrieving socket options such as SO_REUSEADDR.

            config RT_UTEST_LWIP_ADDR_CONV_TEST
                bool "Address conversion test"
                default y
                help
                    Enable address conversion unit tests including inet_addr()
                    for converting string IP addresses to binary format and
                    inet_ntoa() for converting binary addresses back to strings.
                    Tests verify proper conversion functionality.

            config RT_UTEST_LWIP_NETIF_TEST
                bool "Network interface management test"
                default y
                help
                    Enable network interface management unit tests including
                    netif_set_up(), netif_set_down(), and netif_set_default()
                    functions. Tests verify interface state changes and
                    default interface configuration.

            config RT_UTEST_LWIP_TCP_PORT
                int "TCP test port"
                default 1234
                range 1024 65535
                help
                    Configure the TCP port number for unit test communication.
                    Must be in the range 1024-65535 to avoid system ports

            config RT_UTEST_LWIP_UDP_PORT
                int "UDP test port"
                default 1235
                range 1024 65535
                help
                    Configure the UDP port number for unit test communication.
                    Must be in the range 1024-65535 to avoid system ports

            config RT_UTEST_LWIP_TEST_URL
                string "Test domain name"
                default "www.rt-thread.org"
                help
                    Configure the domain name for DNS resolution tests.
                    This domain will be resolved to verify DNS functionality

            config RT_UTEST_LWIP_TEST_ADDR
                string "Expected IP address"
                default "180.163.146.111"
                help
                    Configure the expected IP address for DNS resolution verification.
                    This should match the actual IP of the test domain

        endif
    endmenu
endif