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RIOT/tests/gnrc_sock_udp/main.c 30.7 KB
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  /*
   * Copyright (C) 2016 Freie Universitรคt Berlin
   *
   * This file is subject to the terms and conditions of the GNU Lesser
   * General Public License v2.1. See the file LICENSE in the top level
   * directory for more details.
   */
  
  /**
   * @ingroup     tests
   * @{
   *
   * @file
   * @brief       Test for UDP socks
   *
   * @author      Martine Lenders <m.lenders@fu-berlin.de>
   * @}
   */
  
  #include <errno.h>
  #include <stdbool.h>
  #include <stdint.h>
  #include <stdio.h>
  
  #include "net/sock/udp.h"
  #include "xtimer.h"
  
  #include "constants.h"
  #include "stack.h"
  
  #define _TEST_BUFFER_SIZE   (128)
  
  static uint8_t _test_buffer[_TEST_BUFFER_SIZE];
  static sock_udp_t _sock, _sock2;
  
  #define CALL(fn)            puts("Calling " # fn); fn; tear_down()
  
  static void tear_down(void)
  {
      sock_udp_close(&_sock);
      memset(&_sock, 0, sizeof(_sock));
  }
  
  #ifdef MODULE_GNRC_SOCK_CHECK_REUSE
  static void test_sock_udp_create__EADDRINUSE(void)
  {
      static const sock_udp_ep_t local = { .family = AF_INET6,
                                           .port = _TEST_PORT_LOCAL };
  
      assert(0 == sock_udp_create(&_sock, &local, NULL, 0));
      assert(-EADDRINUSE == sock_udp_create(&_sock2, &local, NULL, 0));
  }
  #endif
  
  static void test_sock_udp_create__EAFNOSUPPORT(void)
  {
      /* port may not be NULL according to doc */
      static const sock_udp_ep_t local = { .family = AF_UNSPEC,
                                           .port = _TEST_PORT_LOCAL };
      /* port may not be NULL according to doc */
      static const sock_udp_ep_t remote = { .family = AF_UNSPEC,
                                            .port = _TEST_PORT_REMOTE };
  
      assert(-EAFNOSUPPORT == sock_udp_create(&_sock, &local, NULL, SOCK_FLAGS_REUSE_EP));
      assert(-EAFNOSUPPORT == sock_udp_create(&_sock, NULL, &remote, SOCK_FLAGS_REUSE_EP));
  }
  
  static void test_sock_udp_create__EINVAL_addr(void)
  {
      /* port may not be NULL according to doc */
      static const sock_udp_ep_t local = { .family = AF_INET6, .netif = _TEST_NETIF,
                                           .port = _TEST_PORT_LOCAL };
      /* port may not be NULL according to doc */
      static const sock_udp_ep_t remote = { .family = AF_INET6,
                                            .netif = _TEST_NETIF,
                                            .port = _TEST_PORT_REMOTE };
  
      assert(-EINVAL == sock_udp_create(&_sock, &local, &remote, SOCK_FLAGS_REUSE_EP));
  }
  
  static void test_sock_udp_create__EINVAL_netif(void)
  {
      /* port may not be NULL according to doc */
      static const sock_udp_ep_t local = { .family = AF_INET6, .netif = _TEST_NETIF,
                                           .port = _TEST_PORT_LOCAL };
      /* port may not be NULL according to doc */
      static const sock_udp_ep_t remote = { .family = AF_INET6,
                                            .netif = (_TEST_NETIF + 1),
                                            .port = _TEST_PORT_REMOTE,
                                            .addr = { .ipv6 = _TEST_ADDR_REMOTE } };
  
      assert(-EINVAL == sock_udp_create(&_sock, &local, &remote, SOCK_FLAGS_REUSE_EP));
  }
  
  static void test_sock_udp_create__no_endpoints(void)
  {
      sock_udp_ep_t ep;
  
      assert(0 == sock_udp_create(&_sock, NULL, NULL, SOCK_FLAGS_REUSE_EP));
      assert(-EADDRNOTAVAIL == sock_udp_get_local(&_sock, &ep));
      assert(-ENOTCONN == sock_udp_get_remote(&_sock, &ep));
  }
  
  static void test_sock_udp_create__only_local(void)
  {
      static const sock_udp_ep_t local = { .family = AF_INET6,
                                           .port = _TEST_PORT_LOCAL };
      sock_udp_ep_t ep;
  
      assert(0 == sock_udp_create(&_sock, &local, NULL, SOCK_FLAGS_REUSE_EP));
      assert(0 == sock_udp_get_local(&_sock, &ep));
      assert(AF_INET6 == ep.family);
      assert(memcmp(&ipv6_addr_unspecified, &ep.addr.ipv6,
                    sizeof(ipv6_addr_t)) == 0);
      assert(SOCK_ADDR_ANY_NETIF == ep.netif);
      assert(_TEST_PORT_LOCAL == ep.port);
      assert(-ENOTCONN == sock_udp_get_remote(&_sock, &ep));
  }
  
  static void test_sock_udp_create__only_local_reuse_ep(void)
  {
      static const sock_udp_ep_t local = { .family = AF_INET6,
                                           .port = _TEST_PORT_LOCAL };
      sock_udp_ep_t ep, ep2;
  
      assert(0 == sock_udp_create(&_sock, &local, NULL, SOCK_FLAGS_REUSE_EP));
      assert(0 == sock_udp_create(&_sock2, &local, NULL, SOCK_FLAGS_REUSE_EP));
      assert(0 == sock_udp_get_local(&_sock, &ep));
      assert(0 == sock_udp_get_local(&_sock2, &ep2));
      assert(AF_INET6 == ep.family);
      assert(memcmp(&ipv6_addr_unspecified, &ep.addr.ipv6,
                    sizeof(ipv6_addr_t)) == 0);
      assert(SOCK_ADDR_ANY_NETIF == ep.netif);
      assert(_TEST_PORT_LOCAL == ep.port);
      assert(-ENOTCONN == sock_udp_get_remote(&_sock, &ep));
      assert(AF_INET6 == ep2.family);
      assert(memcmp(&ipv6_addr_unspecified, &ep2.addr.ipv6,
                    sizeof(ipv6_addr_t)) == 0);
      assert(SOCK_ADDR_ANY_NETIF == ep2.netif);
      assert(_TEST_PORT_LOCAL == ep2.port);
      assert(-ENOTCONN == sock_udp_get_remote(&_sock, &ep2));
      sock_udp_close(&_sock2);
  }
  
  static void test_sock_udp_create__only_remote(void)
  {
      static const ipv6_addr_t remote_addr = { .u8 = _TEST_ADDR_REMOTE };
      static const sock_udp_ep_t remote = { .family = AF_INET6,
                                            .port = _TEST_PORT_REMOTE,
                                            .addr = { .ipv6 = _TEST_ADDR_REMOTE } };
      sock_udp_ep_t ep;
  
      assert(0 == sock_udp_create(&_sock, NULL, &remote, SOCK_FLAGS_REUSE_EP));
      assert(-EADDRNOTAVAIL == sock_udp_get_local(&_sock, &ep));
      assert(0 == sock_udp_get_remote(&_sock, &ep));
      assert(AF_INET6 == ep.family);
      assert(memcmp(&remote_addr, &ep.addr.ipv6, sizeof(ipv6_addr_t)) == 0);
      assert(SOCK_ADDR_ANY_NETIF == ep.netif);
      assert(_TEST_PORT_REMOTE == ep.port);
  }
  
  static void test_sock_udp_create__full(void)
  {
      static const ipv6_addr_t remote_addr = { .u8 = _TEST_ADDR_REMOTE };
      static const sock_udp_ep_t local = { .family = AF_INET6, .netif = _TEST_NETIF,
                                           .port = _TEST_PORT_LOCAL };
      static const sock_udp_ep_t remote = { .family = AF_INET6,
                                            .port = _TEST_PORT_REMOTE,
                                            .addr = { .ipv6 = _TEST_ADDR_REMOTE } };
      sock_udp_ep_t ep;
  
      assert(0 == sock_udp_create(&_sock, &local, &remote, SOCK_FLAGS_REUSE_EP));
      assert(0 == sock_udp_get_local(&_sock, &ep));
      assert(AF_INET6 == ep.family);
      assert(memcmp(&ipv6_addr_unspecified, &ep.addr.ipv6,
                    sizeof(ipv6_addr_t)) == 0);
      assert(_TEST_NETIF == ep.netif);
      assert(_TEST_PORT_LOCAL == ep.port);
      assert(0 == sock_udp_get_remote(&_sock, &ep));
      assert(AF_INET6 == ep.family);
      assert(memcmp(&remote_addr, &ep.addr.ipv6, sizeof(ipv6_addr_t)) == 0);
      assert(SOCK_ADDR_ANY_NETIF == ep.netif);
      assert(_TEST_PORT_REMOTE == ep.port);
  }
  
  static void test_sock_udp_recv__EADDRNOTAVAIL(void)
  {
      assert(0 == sock_udp_create(&_sock, NULL, NULL, SOCK_FLAGS_REUSE_EP));
  
      assert(-EADDRNOTAVAIL == sock_udp_recv(&_sock, _test_buffer,
                                             sizeof(_test_buffer),
                                             SOCK_NO_TIMEOUT, NULL));
  }
  
  static void test_sock_udp_recv__EAGAIN(void)
  {
      static const sock_udp_ep_t local = { .family = AF_INET6, .netif = _TEST_NETIF,
                                           .port = _TEST_PORT_LOCAL };
  
      assert(0 == sock_udp_create(&_sock, &local, NULL, SOCK_FLAGS_REUSE_EP));
  
      assert(-EAGAIN == sock_udp_recv(&_sock, _test_buffer, sizeof(_test_buffer),
                                      0, NULL));
  }
  
  static void test_sock_udp_recv__ENOBUFS(void)
  {
      static const ipv6_addr_t src_addr = { .u8 = _TEST_ADDR_REMOTE };
      static const ipv6_addr_t dst_addr = { .u8 = _TEST_ADDR_LOCAL };
      static const sock_udp_ep_t local = { .family = AF_INET6,
                                           .port = _TEST_PORT_LOCAL };
  
      assert(0 == sock_udp_create(&_sock, &local, NULL, SOCK_FLAGS_REUSE_EP));
      assert(_inject_packet(&src_addr, &dst_addr, _TEST_PORT_REMOTE,
                            _TEST_PORT_LOCAL, "ABCD", sizeof("ABCD"), _TEST_NETIF));
      assert(-ENOBUFS == sock_udp_recv(&_sock, _test_buffer, 2, SOCK_NO_TIMEOUT,
                                       NULL));
      assert(_check_net());
  }
  
  static void test_sock_udp_recv__EPROTO(void)
  {
      static const ipv6_addr_t src_addr = { .u8 = _TEST_ADDR_WRONG };
      static const ipv6_addr_t dst_addr = { .u8 = _TEST_ADDR_LOCAL };
      static const sock_udp_ep_t local = { .family = AF_INET6,
                                           .port = _TEST_PORT_LOCAL };
      static const sock_udp_ep_t remote = { .addr = { .ipv6 = _TEST_ADDR_REMOTE },
                                            .family = AF_INET6,
                                            .port = _TEST_PORT_REMOTE };
  
      assert(0 == sock_udp_create(&_sock, &local, &remote, SOCK_FLAGS_REUSE_EP));
      assert(_inject_packet(&src_addr, &dst_addr, _TEST_PORT_REMOTE,
                            _TEST_PORT_LOCAL, "ABCD", sizeof("ABCD"),
                            _TEST_NETIF));
      assert(-EPROTO == sock_udp_recv(&_sock, _test_buffer, sizeof(_test_buffer),
                                      SOCK_NO_TIMEOUT, NULL));
      assert(_check_net());
  }
  
  static void test_sock_udp_recv__ETIMEDOUT(void)
  {
      static const sock_udp_ep_t local = { .family = AF_INET6, .netif = _TEST_NETIF,
                                           .port = _TEST_PORT_LOCAL };
  
      assert(0 == sock_udp_create(&_sock, &local, NULL, SOCK_FLAGS_REUSE_EP));
  
      puts(" * Calling sock_udp_recv()");
      assert(-ETIMEDOUT == sock_udp_recv(&_sock, _test_buffer,
                                         sizeof(_test_buffer), _TEST_TIMEOUT,
                                         NULL));
      printf(" * (timed out with timeout %lu)\n", (long unsigned)_TEST_TIMEOUT);
  }
  
  static void test_sock_udp_recv__socketed(void)
  {
      static const ipv6_addr_t src_addr = { .u8 = _TEST_ADDR_REMOTE };
      static const ipv6_addr_t dst_addr = { .u8 = _TEST_ADDR_LOCAL };
      static const sock_udp_ep_t local = { .family = AF_INET6,
                                           .port = _TEST_PORT_LOCAL };
      static const sock_udp_ep_t remote = { .addr = { .ipv6 = _TEST_ADDR_REMOTE },
                                            .family = AF_INET6,
                                            .port = _TEST_PORT_REMOTE };
  
      assert(0 == sock_udp_create(&_sock, &local, &remote, SOCK_FLAGS_REUSE_EP));
      assert(_inject_packet(&src_addr, &dst_addr, _TEST_PORT_REMOTE,
                            _TEST_PORT_LOCAL, "ABCD", sizeof("ABCD"),
                            _TEST_NETIF));
      assert(sizeof("ABCD") == sock_udp_recv(&_sock, _test_buffer,
                                             sizeof(_test_buffer),
                                             SOCK_NO_TIMEOUT, NULL));
      assert(_check_net());
  }
  
  static void test_sock_udp_recv__socketed_with_remote(void)
  {
      static const ipv6_addr_t src_addr = { .u8 = _TEST_ADDR_REMOTE };
      static const ipv6_addr_t dst_addr = { .u8 = _TEST_ADDR_LOCAL };
      static const sock_udp_ep_t local = { .family = AF_INET6,
                                           .port = _TEST_PORT_LOCAL };
      static const sock_udp_ep_t remote = { .addr = { .ipv6 = _TEST_ADDR_REMOTE },
                                            .family = AF_INET6,
                                            .port = _TEST_PORT_REMOTE };
      sock_udp_ep_t result;
  
      assert(0 == sock_udp_create(&_sock, &local, &remote, SOCK_FLAGS_REUSE_EP));
      assert(_inject_packet(&src_addr, &dst_addr, _TEST_PORT_REMOTE,
                            _TEST_PORT_LOCAL, "ABCD", sizeof("ABCD"),
                            _TEST_NETIF));
      assert(sizeof("ABCD") == sock_udp_recv(&_sock, _test_buffer,
                                             sizeof(_test_buffer),
                                             SOCK_NO_TIMEOUT, &result));
      assert(AF_INET6 == result.family);
      assert(memcmp(&result.addr, &src_addr, sizeof(result.addr)) == 0);
      assert(_TEST_PORT_REMOTE == result.port);
      assert(_TEST_NETIF == result.netif);
      assert(_check_net());
  }
  
  static void test_sock_udp_recv__unsocketed(void)
  {
      static const ipv6_addr_t src_addr = { .u8 = _TEST_ADDR_REMOTE };
      static const ipv6_addr_t dst_addr = { .u8 = _TEST_ADDR_LOCAL };
      static const sock_udp_ep_t local = { .addr = { .ipv6 = _TEST_ADDR_LOCAL },
                                           .family = AF_INET6,
                                           .port = _TEST_PORT_LOCAL };
  
      assert(0 == sock_udp_create(&_sock, &local, NULL, SOCK_FLAGS_REUSE_EP));
      assert(_inject_packet(&src_addr, &dst_addr, _TEST_PORT_REMOTE,
                            _TEST_PORT_LOCAL, "ABCD", sizeof("ABCD"),
                            _TEST_NETIF));
      assert(sizeof("ABCD") == sock_udp_recv(&_sock, _test_buffer,
                                             sizeof(_test_buffer),
                                             SOCK_NO_TIMEOUT, NULL));
      assert(_check_net());
  }
  
  static void test_sock_udp_recv__unsocketed_with_remote(void)
  {
      static const ipv6_addr_t src_addr = { .u8 = _TEST_ADDR_REMOTE };
      static const ipv6_addr_t dst_addr = { .u8 = _TEST_ADDR_LOCAL };
      static const sock_udp_ep_t local = { .family = AF_INET6,
                                           .port = _TEST_PORT_LOCAL };
      sock_udp_ep_t result;
  
      assert(0 == sock_udp_create(&_sock, &local, NULL, SOCK_FLAGS_REUSE_EP));
      assert(_inject_packet(&src_addr, &dst_addr, _TEST_PORT_REMOTE,
                            _TEST_PORT_LOCAL, "ABCD", sizeof("ABCD"),
                            _TEST_NETIF));
      assert(sizeof("ABCD") == sock_udp_recv(&_sock, _test_buffer,
                                             sizeof(_test_buffer),
                                             SOCK_NO_TIMEOUT, &result));
      assert(AF_INET6 == result.family);
      assert(memcmp(&result.addr, &src_addr, sizeof(result.addr)) == 0);
      assert(_TEST_PORT_REMOTE == result.port);
      assert(_TEST_NETIF == result.netif);
      assert(_check_net());
  }
  
  static void test_sock_udp_recv__with_timeout(void)
  {
      static const ipv6_addr_t src_addr = { .u8 = _TEST_ADDR_REMOTE };
      static const ipv6_addr_t dst_addr = { .u8 = _TEST_ADDR_LOCAL };
      static const sock_udp_ep_t local = { .family = AF_INET6,
                                           .port = _TEST_PORT_LOCAL };
      sock_udp_ep_t result;
  
      assert(0 == sock_udp_create(&_sock, &local, NULL, SOCK_FLAGS_REUSE_EP));
      assert(_inject_packet(&src_addr, &dst_addr, _TEST_PORT_REMOTE,
                            _TEST_PORT_LOCAL, "ABCD", sizeof("ABCD"),
                            _TEST_NETIF));
      assert(sizeof("ABCD") == sock_udp_recv(&_sock, _test_buffer,
                                             sizeof(_test_buffer), _TEST_TIMEOUT,
                                             &result));
      assert(AF_INET6 == result.family);
      assert(memcmp(&result.addr, &src_addr, sizeof(result.addr)) == 0);
      assert(_TEST_PORT_REMOTE == result.port);
      assert(_TEST_NETIF == result.netif);
      assert(_check_net());
  }
  
  static void test_sock_udp_recv__non_blocking(void)
  {
      static const ipv6_addr_t src_addr = { .u8 = _TEST_ADDR_REMOTE };
      static const ipv6_addr_t dst_addr = { .u8 = _TEST_ADDR_LOCAL };
      static const sock_udp_ep_t local = { .family = AF_INET6,
                                           .port = _TEST_PORT_LOCAL };
      sock_udp_ep_t result;
  
      assert(0 == sock_udp_create(&_sock, &local, NULL, SOCK_FLAGS_REUSE_EP));
      assert(_inject_packet(&src_addr, &dst_addr, _TEST_PORT_REMOTE,
                            _TEST_PORT_LOCAL, "ABCD", sizeof("ABCD"),
                            _TEST_NETIF));
      assert(sizeof("ABCD") == sock_udp_recv(&_sock, _test_buffer,
                                             sizeof(_test_buffer), 0, &result));
      assert(AF_INET6 == result.family);
      assert(memcmp(&result.addr, &src_addr, sizeof(result.addr)) == 0);
      assert(_TEST_PORT_REMOTE == result.port);
      assert(_TEST_NETIF == result.netif);
      assert(_check_net());
  }
  
  static void test_sock_udp_send__EAFNOSUPPORT(void)
  {
      static const sock_udp_ep_t remote = { .addr = { .ipv6 = _TEST_ADDR_REMOTE },
                                            .family = AF_INET,
                                            .port = _TEST_PORT_REMOTE };
  
      assert(-EAFNOSUPPORT == sock_udp_send(NULL, "ABCD", sizeof("ABCD"),
                                            &remote));
      assert(_check_net());
  }
  
  static void test_sock_udp_send__EINVAL_addr(void)
  {
      static const sock_udp_ep_t local = { .addr = { .ipv6 = _TEST_ADDR_LOCAL },
                                           .family = AF_INET6,
                                           .port = _TEST_PORT_REMOTE,
                                           .netif = _TEST_NETIF };
      static const sock_udp_ep_t remote = { .family = AF_INET6,
                                            .port = _TEST_PORT_REMOTE,
                                            .netif = _TEST_NETIF };
  
      assert(0 == sock_udp_create(&_sock, &local, NULL, SOCK_FLAGS_REUSE_EP));
      assert(-EINVAL == sock_udp_send(&_sock, "ABCD", sizeof("ABCD"), &remote));
      assert(_check_net());
  }
  
  static void test_sock_udp_send__EINVAL_netif(void)
  {
      static const sock_udp_ep_t local = { .addr = { .ipv6 = _TEST_ADDR_LOCAL },
                                           .family = AF_INET6,
                                           .port = _TEST_PORT_REMOTE,
                                           .netif = _TEST_NETIF };
      static const sock_udp_ep_t remote = { .addr = { .ipv6 = _TEST_ADDR_REMOTE },
                                            .family = AF_INET6,
                                            .port = _TEST_PORT_REMOTE,
                                            .netif = _TEST_NETIF + 1 };
  
      assert(0 == sock_udp_create(&_sock, &local, NULL, SOCK_FLAGS_REUSE_EP));
      assert(-EINVAL == sock_udp_send(&_sock, "ABCD", sizeof("ABCD"), &remote));
      assert(_check_net());
  }
  
  static void test_sock_udp_send__EINVAL_port(void)
  {
      static const sock_udp_ep_t remote = { .addr = { .ipv6 = _TEST_ADDR_REMOTE },
                                            .family = AF_INET6 };
  
      assert(-EINVAL == sock_udp_send(NULL, "ABCD", sizeof("ABCD"), &remote));
      assert(_check_net());
  }
  
  static void test_sock_udp_send__ENOTCONN(void)
  {
      assert(0 == sock_udp_create(&_sock, NULL, NULL, SOCK_FLAGS_REUSE_EP));
      assert(-ENOTCONN == sock_udp_send(&_sock, "ABCD", sizeof("ABCD"), NULL));
      assert(_check_net());
  }
  
  static void test_sock_udp_send__socketed_no_local_no_netif(void)
  {
      static const ipv6_addr_t dst_addr = { .u8 = _TEST_ADDR_REMOTE };
      static const sock_udp_ep_t remote = { .addr = { .ipv6 = _TEST_ADDR_REMOTE },
                                            .family = AF_INET6,
                                            .port = _TEST_PORT_REMOTE };
  
      assert(0 == sock_udp_create(&_sock, NULL, &remote, SOCK_FLAGS_REUSE_EP));
      assert(sizeof("ABCD") == sock_udp_send(&_sock, "ABCD", sizeof("ABCD"),
                                             NULL));
      assert(_check_packet(&ipv6_addr_unspecified, &dst_addr, 0,
                           _TEST_PORT_REMOTE, "ABCD", sizeof("ABCD"),
                           SOCK_ADDR_ANY_NETIF, true));
      xtimer_usleep(1000);    /* let GNRC stack finish */
      assert(_check_net());
  }
  
  static void test_sock_udp_send__socketed_no_netif(void)
  {
      static const ipv6_addr_t src_addr = { .u8 = _TEST_ADDR_LOCAL };
      static const ipv6_addr_t dst_addr = { .u8 = _TEST_ADDR_REMOTE };
      static const sock_udp_ep_t local = { .addr = { .ipv6 = _TEST_ADDR_LOCAL },
                                           .family = AF_INET6,
                                           .port = _TEST_PORT_LOCAL };
      static const sock_udp_ep_t remote = { .addr = { .ipv6 = _TEST_ADDR_REMOTE },
                                            .family = AF_INET6,
                                            .port = _TEST_PORT_REMOTE };
  
      assert(0 == sock_udp_create(&_sock, &local, &remote, SOCK_FLAGS_REUSE_EP));
      assert(sizeof("ABCD") == sock_udp_send(&_sock, "ABCD", sizeof("ABCD"),
                                             NULL));
      assert(_check_packet(&src_addr, &dst_addr, _TEST_PORT_LOCAL,
                           _TEST_PORT_REMOTE, "ABCD", sizeof("ABCD"),
                           SOCK_ADDR_ANY_NETIF, false));
      xtimer_usleep(1000);    /* let GNRC stack finish */
      assert(_check_net());
  }
  
  static void test_sock_udp_send__socketed_no_local(void)
  {
      static const ipv6_addr_t dst_addr = { .u8 = _TEST_ADDR_REMOTE };
      static const sock_udp_ep_t remote = { .addr = { .ipv6 = _TEST_ADDR_REMOTE },
                                            .family = AF_INET6,
                                            .netif = _TEST_NETIF,
                                            .port = _TEST_PORT_REMOTE };
  
      assert(0 == sock_udp_create(&_sock, NULL, &remote, SOCK_FLAGS_REUSE_EP));
      assert(sizeof("ABCD") == sock_udp_send(&_sock, "ABCD", sizeof("ABCD"),
                                             NULL));
      assert(_check_packet(&ipv6_addr_unspecified, &dst_addr, 0,
                           _TEST_PORT_REMOTE, "ABCD", sizeof("ABCD"), _TEST_NETIF,
                           true));
      xtimer_usleep(1000);    /* let GNRC stack finish */
      assert(_check_net());
  }
  
  static void test_sock_udp_send__socketed(void)
  {
      static const ipv6_addr_t src_addr = { .u8 = _TEST_ADDR_LOCAL };
      static const ipv6_addr_t dst_addr = { .u8 = _TEST_ADDR_REMOTE };
      static const sock_udp_ep_t local = { .addr = { .ipv6 = _TEST_ADDR_LOCAL },
                                           .family = AF_INET6,
                                           .netif = _TEST_NETIF,
                                           .port = _TEST_PORT_LOCAL };
      static const sock_udp_ep_t remote = { .addr = { .ipv6 = _TEST_ADDR_REMOTE },
                                            .family = AF_INET6,
                                            .port = _TEST_PORT_REMOTE };
  
      assert(0 == sock_udp_create(&_sock, &local, &remote, SOCK_FLAGS_REUSE_EP));
      assert(sizeof("ABCD") == sock_udp_send(&_sock, "ABCD", sizeof("ABCD"),
                                             NULL));
      assert(_check_packet(&src_addr, &dst_addr, _TEST_PORT_LOCAL,
                           _TEST_PORT_REMOTE, "ABCD", sizeof("ABCD"),
                           _TEST_NETIF, false));
      xtimer_usleep(1000);    /* let GNRC stack finish */
      assert(_check_net());
  }
  
  static void test_sock_udp_send__socketed_other_remote(void)
  {
      static const ipv6_addr_t src_addr = { .u8 = _TEST_ADDR_LOCAL };
      static const ipv6_addr_t dst_addr = { .u8 = _TEST_ADDR_REMOTE };
      static const sock_udp_ep_t local = { .addr = { .ipv6 = _TEST_ADDR_LOCAL },
                                           .family = AF_INET6,
                                           .netif = _TEST_NETIF,
                                           .port = _TEST_PORT_LOCAL };
      static const sock_udp_ep_t sock_remote = { .addr = { .ipv6 = _TEST_ADDR_WRONG },
                                                 .family = AF_INET6,
                                                 .port = _TEST_PORT_REMOTE + _TEST_PORT_LOCAL };
      static const sock_udp_ep_t remote = { .addr = { .ipv6 = _TEST_ADDR_REMOTE },
                                            .family = AF_INET6,
                                            .port = _TEST_PORT_REMOTE };
  
      assert(0 == sock_udp_create(&_sock, &local, &sock_remote, SOCK_FLAGS_REUSE_EP));
      assert(sizeof("ABCD") == sock_udp_send(&_sock, "ABCD", sizeof("ABCD"),
                                             &remote));
      assert(_check_packet(&src_addr, &dst_addr, _TEST_PORT_LOCAL,
                           _TEST_PORT_REMOTE, "ABCD", sizeof("ABCD"),
                           _TEST_NETIF, false));
      xtimer_usleep(1000);    /* let GNRC stack finish */
      assert(_check_net());
  }
  
  static void test_sock_udp_send__unsocketed_no_local_no_netif(void)
  {
      static const ipv6_addr_t dst_addr = { .u8 = _TEST_ADDR_REMOTE };
      static const sock_udp_ep_t remote = { .addr = { .ipv6 = _TEST_ADDR_REMOTE },
                                            .family = AF_INET6,
                                            .port = _TEST_PORT_REMOTE };
  
      assert(0 == sock_udp_create(&_sock, NULL, NULL, SOCK_FLAGS_REUSE_EP));
      assert(sizeof("ABCD") == sock_udp_send(&_sock, "ABCD", sizeof("ABCD"),
                                             &remote));
      assert(_check_packet(&ipv6_addr_unspecified, &dst_addr, 0,
                           _TEST_PORT_REMOTE, "ABCD", sizeof("ABCD"),
                           SOCK_ADDR_ANY_NETIF, true));
      xtimer_usleep(1000);    /* let GNRC stack finish */
      assert(_check_net());
  }
  
  static void test_sock_udp_send__unsocketed_no_netif(void)
  {
      static const ipv6_addr_t src_addr = { .u8 = _TEST_ADDR_LOCAL };
      static const ipv6_addr_t dst_addr = { .u8 = _TEST_ADDR_REMOTE };
      static const sock_udp_ep_t local = { .addr = { .ipv6 = _TEST_ADDR_LOCAL },
                                           .family = AF_INET6,
                                           .port = _TEST_PORT_LOCAL };
      static const sock_udp_ep_t remote = { .addr = { .ipv6 = _TEST_ADDR_REMOTE },
                                            .family = AF_INET6,
                                            .port = _TEST_PORT_REMOTE };
  
      assert(0 == sock_udp_create(&_sock, &local, NULL, SOCK_FLAGS_REUSE_EP));
      assert(sizeof("ABCD") == sock_udp_send(&_sock, "ABCD", sizeof("ABCD"),
                                             &remote));
      assert(_check_packet(&src_addr, &dst_addr, _TEST_PORT_LOCAL,
                           _TEST_PORT_REMOTE, "ABCD", sizeof("ABCD"),
                           SOCK_ADDR_ANY_NETIF, false));
      xtimer_usleep(1000);    /* let GNRC stack finish */
      assert(_check_net());
  }
  
  static void test_sock_udp_send__unsocketed_no_local(void)
  {
      static const ipv6_addr_t dst_addr = { .u8 = _TEST_ADDR_REMOTE };
      static const sock_udp_ep_t remote = { .addr = { .ipv6 = _TEST_ADDR_REMOTE },
                                            .family = AF_INET6,
                                            .netif = _TEST_NETIF,
                                            .port = _TEST_PORT_REMOTE };
  
      assert(0 == sock_udp_create(&_sock, NULL, NULL, SOCK_FLAGS_REUSE_EP));
      assert(sizeof("ABCD") == sock_udp_send(&_sock, "ABCD", sizeof("ABCD"),
                                             &remote));
      assert(_check_packet(&ipv6_addr_unspecified, &dst_addr, 0,
                           _TEST_PORT_REMOTE, "ABCD", sizeof("ABCD"), _TEST_NETIF,
                           true));
      xtimer_usleep(1000);    /* let GNRC stack finish */
      assert(_check_net());
  }
  
  static void test_sock_udp_send__unsocketed(void)
  {
      static const ipv6_addr_t src_addr = { .u8 = _TEST_ADDR_LOCAL };
      static const ipv6_addr_t dst_addr = { .u8 = _TEST_ADDR_REMOTE };
      static const sock_udp_ep_t local = { .addr = { .ipv6 = _TEST_ADDR_LOCAL },
                                           .family = AF_INET6,
                                           .netif = _TEST_NETIF,
                                           .port = _TEST_PORT_LOCAL };
      static const sock_udp_ep_t remote = { .addr = { .ipv6 = _TEST_ADDR_REMOTE },
                                            .family = AF_INET6,
                                            .port = _TEST_PORT_REMOTE };
  
      assert(0 == sock_udp_create(&_sock, &local, NULL, SOCK_FLAGS_REUSE_EP));
      assert(sizeof("ABCD") == sock_udp_send(&_sock, "ABCD", sizeof("ABCD"),
                                             &remote));
      assert(_check_packet(&src_addr, &dst_addr, _TEST_PORT_LOCAL,
                           _TEST_PORT_REMOTE, "ABCD", sizeof("ABCD"),
                           _TEST_NETIF, false));
      xtimer_usleep(1000);    /* let GNRC stack finish */
      assert(_check_net());
  }
  
  static void test_sock_udp_send__no_sock_no_netif(void)
  {
      static const ipv6_addr_t dst_addr = { .u8 = _TEST_ADDR_REMOTE };
      static const sock_udp_ep_t remote = { .addr = { .ipv6 = _TEST_ADDR_REMOTE },
                                            .family = AF_INET6,
                                            .port = _TEST_PORT_REMOTE };
  
      assert(sizeof("ABCD") == sock_udp_send(NULL, "ABCD", sizeof("ABCD"),
                                             &remote));
      assert(_check_packet(&ipv6_addr_unspecified, &dst_addr, 0,
                           _TEST_PORT_REMOTE, "ABCD", sizeof("ABCD"),
                           SOCK_ADDR_ANY_NETIF, true));
      xtimer_usleep(1000);    /* let GNRC stack finish */
      assert(_check_net());
  }
  
  static void test_sock_udp_send__no_sock(void)
  {
      static const ipv6_addr_t dst_addr = { .u8 = _TEST_ADDR_REMOTE };
      static const sock_udp_ep_t remote = { .addr = { .ipv6 = _TEST_ADDR_REMOTE },
                                            .family = AF_INET6,
                                            .netif = _TEST_NETIF,
                                            .port = _TEST_PORT_REMOTE };
  
      assert(sizeof("ABCD") == sock_udp_send(NULL, "ABCD", sizeof("ABCD"),
                                             &remote));
      assert(_check_packet(&ipv6_addr_unspecified, &dst_addr, 0,
                           _TEST_PORT_REMOTE, "ABCD", sizeof("ABCD"),
                           _TEST_NETIF, true));
      xtimer_usleep(1000);    /* let GNRC stack finish */
      assert(_check_net());
  }
  
  int main(void)
  {
      _net_init();
      tear_down();
  #ifdef MODULE_GNRC_SOCK_CHECK_REUSE
      CALL(test_sock_udp_create__EADDRINUSE());
  #endif
      CALL(test_sock_udp_create__EAFNOSUPPORT());
      CALL(test_sock_udp_create__EINVAL_addr());
      CALL(test_sock_udp_create__EINVAL_netif());
      CALL(test_sock_udp_create__no_endpoints());
      CALL(test_sock_udp_create__only_local());
      CALL(test_sock_udp_create__only_local_reuse_ep());
      CALL(test_sock_udp_create__only_remote());
      CALL(test_sock_udp_create__full());
      /* sock_udp_close() is tested in tear_down() */
      /* sock_udp_get_local() is tested in sock_udp_create() tests */
      /* sock_udp_get_remote() is tested in sock_udp_create() tests */
      CALL(test_sock_udp_recv__EADDRNOTAVAIL());
      CALL(test_sock_udp_recv__EAGAIN());
      CALL(test_sock_udp_recv__ENOBUFS());
      CALL(test_sock_udp_recv__EPROTO());
      CALL(test_sock_udp_recv__ETIMEDOUT());
      CALL(test_sock_udp_recv__socketed());
      CALL(test_sock_udp_recv__socketed_with_remote());
      CALL(test_sock_udp_recv__unsocketed());
      CALL(test_sock_udp_recv__unsocketed_with_remote());
      CALL(test_sock_udp_recv__with_timeout());
      CALL(test_sock_udp_recv__non_blocking());
      _prepare_send_checks();
      CALL(test_sock_udp_send__EAFNOSUPPORT());
      CALL(test_sock_udp_send__EINVAL_addr());
      CALL(test_sock_udp_send__EINVAL_netif());
      CALL(test_sock_udp_send__EINVAL_port());
      CALL(test_sock_udp_send__ENOTCONN());
      CALL(test_sock_udp_send__socketed_no_local_no_netif());
      CALL(test_sock_udp_send__socketed_no_netif());
      CALL(test_sock_udp_send__socketed_no_local());
      CALL(test_sock_udp_send__socketed());
      CALL(test_sock_udp_send__socketed_other_remote());
      CALL(test_sock_udp_send__unsocketed_no_local_no_netif());
      CALL(test_sock_udp_send__unsocketed_no_netif());
      CALL(test_sock_udp_send__unsocketed_no_local());
      CALL(test_sock_udp_send__unsocketed());
      CALL(test_sock_udp_send__no_sock_no_netif());
      CALL(test_sock_udp_send__no_sock());
  
      puts("ALL TESTS SUCCESSFUL");
  
      return 0;
  }