tests-ipv6_netif.c 21.1 KB
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583
/*
 * Copyright (C) 2015 Martine Lenders <mlenders@inf.fu-berlin.de>
 *
 * 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.
 */

/**
 * @{
 *
 * @file
 */
#include <errno.h>
#include <stdint.h>
#include <stdlib.h>

#include "embUnit/embUnit.h"

#include "byteorder.h"
#include "net/gnrc/netif.h"
#include "net/gnrc/ipv6/netif.h"

#include "unittests-constants.h"
#include "tests-ipv6_netif.h"

/* default interface for testing */
#define DEFAULT_TEST_NETIF      (TEST_UINT16)
/* default IPv6 addr for testing */
#define DEFAULT_TEST_IPV6_ADDR  { { \
            0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, \
            0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f \
        } \
    }
/* default IPv6 prefix length */
#define DEFAULT_TEST_PREFIX_LEN (18)

/* another interface for testing */
#define OTHER_TEST_NETIF        (TEST_UINT16 + TEST_UINT8)
/* another IPv6 addr for testing */
#define OTHER_TEST_IPV6_ADDR    { { \
            0x0f, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, \
            0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f \
        } \
    }
/* matches DEFAULT_TEST_IPV6_ADDR with 18 byte */
#define DEFAULT_TEST_IPV6_PREFIX18  { { \
            0x00, 0x01, 0x22, 0x03, 0x04, 0x05, 0x06, 0x07, \
            0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f \
        } \
    }
/* matches DEFAULT_TEST_IPV6_ADDR with 23 byte */
#define DEFAULT_TEST_IPV6_PREFIX23  { { \
            0x00, 0x01, 0x03, 0x03, 0x04, 0x05, 0x06, 0x07, \
            0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f \
        } \
    }
/* matches DEFAULT_TEST_IPV6_ADDR with 64 byte */
#define DEFAULT_TEST_IPV6_PREFIX64  { { \
            0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, \
            0x88, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f \
        } \
    }

static void set_up(void)
{
    gnrc_netif_init();
    gnrc_ipv6_netif_init();
}

static void test_ipv6_netif_add__success(void)
{
    gnrc_ipv6_netif_t *entry;

    gnrc_ipv6_netif_add(DEFAULT_TEST_NETIF);

    TEST_ASSERT_NOT_NULL((entry = gnrc_ipv6_netif_get(DEFAULT_TEST_NETIF)));
    TEST_ASSERT_EQUAL_INT(DEFAULT_TEST_NETIF, entry->pid);
}

static void test_netif_add__success_with_ipv6(void)
{
    kernel_pid_t pids[GNRC_NETIF_NUMOF];
    size_t pid_num;
    gnrc_ipv6_netif_t *entry;
    ipv6_addr_t exp_addr = IPV6_ADDR_ALL_NODES_LINK_LOCAL;

    gnrc_netif_add(DEFAULT_TEST_NETIF);

    TEST_ASSERT_EQUAL_INT(1, (pid_num = gnrc_netif_get(pids)));
    TEST_ASSERT_EQUAL_INT(1, pid_num);
    TEST_ASSERT_EQUAL_INT(DEFAULT_TEST_NETIF, pids[0]);
    TEST_ASSERT_NOT_NULL((entry = gnrc_ipv6_netif_get(DEFAULT_TEST_NETIF)));
    TEST_ASSERT_EQUAL_INT(DEFAULT_TEST_NETIF, entry->pid);
    TEST_ASSERT_EQUAL_STRING((char *)exp_addr.u8, (char *)entry->addrs[0].addr.u8);
}

static void test_ipv6_netif_add__despite_free_entry(void)
{
    /* Tests for possible duplicates as described in http://github.com/RIOT-OS/RIOT/issues/2965 */

    gnrc_ipv6_netif_add(OTHER_TEST_NETIF);
    test_ipv6_netif_add__success(); /* adds DEFAULT_TEST_NETIF as interface */

    /* create space by removing first entry */
    gnrc_ipv6_netif_remove(OTHER_TEST_NETIF);

    /* add DEFAULT_TEST_NETIF yet again and remove it */
    test_ipv6_netif_add__success();
    gnrc_ipv6_netif_remove(DEFAULT_TEST_NETIF);

    /* see if there's a duplicate left */
    TEST_ASSERT_NULL(gnrc_ipv6_netif_get(DEFAULT_TEST_NETIF));
}

static void test_ipv6_netif_remove__not_allocated(void)
{
    test_ipv6_netif_add__success(); /* adds DEFAULT_TEST_NETIF as interface */
    gnrc_ipv6_netif_remove(OTHER_TEST_NETIF);
    TEST_ASSERT_NULL(gnrc_ipv6_netif_get(OTHER_TEST_NETIF));
    TEST_ASSERT_NOT_NULL(gnrc_ipv6_netif_get(DEFAULT_TEST_NETIF));
}

static void test_ipv6_netif_remove__success(void)
{
    test_ipv6_netif_add__success(); /* adds DEFAULT_TEST_NETIF as interface */
    gnrc_ipv6_netif_remove(DEFAULT_TEST_NETIF);
    TEST_ASSERT_NULL(gnrc_ipv6_netif_get(DEFAULT_TEST_NETIF));
}

static void test_ipv6_netif_get__empty(void)
{
    for (kernel_pid_t pid = KERNEL_PID_FIRST; pid <= KERNEL_PID_LAST; pid++) {
        TEST_ASSERT_NULL(gnrc_ipv6_netif_get(pid));
    }
}

static void test_ipv6_netif_add_addr__no_iface1(void)
{
    ipv6_addr_t addr = DEFAULT_TEST_IPV6_ADDR;

    TEST_ASSERT_NULL(gnrc_ipv6_netif_add_addr(DEFAULT_TEST_NETIF, &addr, DEFAULT_TEST_PREFIX_LEN, 0));
}

static void test_ipv6_netif_add_addr__no_iface2(void)
{
    TEST_ASSERT_NULL(gnrc_ipv6_netif_add_addr(DEFAULT_TEST_NETIF, NULL, DEFAULT_TEST_PREFIX_LEN, 0));
}

static void test_ipv6_netif_add_addr__addr_NULL(void)
{
    test_ipv6_netif_add__success(); /* adds DEFAULT_TEST_NETIF as interface */

    TEST_ASSERT_NULL(gnrc_ipv6_netif_add_addr(DEFAULT_TEST_NETIF, NULL, DEFAULT_TEST_PREFIX_LEN, 0));
}

static void test_ipv6_netif_add_addr__addr_unspecified(void)
{
    ipv6_addr_t addr = IPV6_ADDR_UNSPECIFIED;

    test_ipv6_netif_add__success(); /* adds DEFAULT_TEST_NETIF as interface */

    TEST_ASSERT_NULL(gnrc_ipv6_netif_add_addr(DEFAULT_TEST_NETIF, &addr, DEFAULT_TEST_PREFIX_LEN, 0));
}

static void test_ipv6_netif_add_addr__full(void)
{
    ipv6_addr_t addr = DEFAULT_TEST_IPV6_ADDR, *res = &addr;
    int i;

    /* make link local to avoid automatic link local adding */
    ipv6_addr_set_link_local_prefix(&addr);

    test_ipv6_netif_add__success(); /* adds DEFAULT_TEST_NETIF as interface */

    for (i = 0; res != NULL; i++, addr.u8[15]++) {
        res =  gnrc_ipv6_netif_add_addr(DEFAULT_TEST_NETIF, &addr, DEFAULT_TEST_PREFIX_LEN, 0);
    }
}

static void test_ipv6_netif_add_addr__success(void)
{
    ipv6_addr_t addr = DEFAULT_TEST_IPV6_ADDR;

    test_ipv6_netif_add__success(); /* adds DEFAULT_TEST_NETIF as interface */

    TEST_ASSERT_NOT_NULL(gnrc_ipv6_netif_add_addr(DEFAULT_TEST_NETIF, &addr,
                                                  DEFAULT_TEST_PREFIX_LEN, 0));
}

static void test_ipv6_netif_add_addr__despite_free_entry(void)
{
    /* Tests for possible duplicates as described in http://github.com/RIOT-OS/RIOT/issues/2965 */
    ipv6_addr_t *entry_1;
    ipv6_addr_t *entry_2;

    ipv6_addr_t default_addr = DEFAULT_TEST_IPV6_ADDR;
    ipv6_addr_t sol_addr;

    test_ipv6_netif_add__success(); /* adds DEFAULT_TEST_NETIF as interface */

    /* add addresses to the interface */
    TEST_ASSERT_NOT_NULL((entry_1 = gnrc_ipv6_netif_add_addr(DEFAULT_TEST_NETIF, &default_addr,
                                                             DEFAULT_TEST_PREFIX_LEN, 0)));

    /* remove default_addr, but not the corresponding solicited-node addr that
     * came with it */
    gnrc_ipv6_netif_remove_addr(DEFAULT_TEST_NETIF, &default_addr);

    /* create and re-add corresponding solicited node address and check that it
     * hasn't taken the old place of default_addr*/
    ipv6_addr_set_solicited_nodes(&sol_addr, &default_addr);
    TEST_ASSERT_NOT_NULL((entry_2 = gnrc_ipv6_netif_add_addr(DEFAULT_TEST_NETIF, &sol_addr,
                                                             DEFAULT_TEST_PREFIX_LEN, 0)));

    TEST_ASSERT(entry_1 != entry_2);
}

static void test_ipv6_netif_remove_addr__not_allocated(void)
{
    ipv6_addr_t addr = DEFAULT_TEST_IPV6_ADDR;
    ipv6_addr_t other_addr = OTHER_TEST_IPV6_ADDR;

    test_ipv6_netif_add_addr__success(); /* adds DEFAULT_TEST_IPV6_ADDR to
                                          * DEFAULT_TEST_NETIF */

    gnrc_ipv6_netif_remove_addr(DEFAULT_TEST_NETIF, &other_addr);

    TEST_ASSERT_NULL(gnrc_ipv6_netif_find_addr(DEFAULT_TEST_NETIF, &other_addr));
    TEST_ASSERT_NOT_NULL(gnrc_ipv6_netif_find_addr(DEFAULT_TEST_NETIF, &addr));
}

static void test_ipv6_netif_remove_addr__success(void)
{
    ipv6_addr_t addr = DEFAULT_TEST_IPV6_ADDR;

    test_ipv6_netif_add_addr__success(); /* adds DEFAULT_TEST_IPV6_ADDR to
                                          * DEFAULT_TEST_NETIF */

    gnrc_ipv6_netif_remove_addr(DEFAULT_TEST_NETIF, &addr);

    TEST_ASSERT_NULL(gnrc_ipv6_netif_find_addr(DEFAULT_TEST_NETIF, &addr));
}

static void test_ipv6_netif_reset_addr__success(void)
{
    ipv6_addr_t addr = DEFAULT_TEST_IPV6_ADDR;

    test_ipv6_netif_add_addr__success(); /* adds DEFAULT_TEST_IPV6_ADDR to
                                          * DEFAULT_TEST_NETIF */

    gnrc_ipv6_netif_reset_addr(DEFAULT_TEST_NETIF);

    TEST_ASSERT_NULL(gnrc_ipv6_netif_find_addr(DEFAULT_TEST_NETIF, &addr));
}

static void test_ipv6_netif_find_by_addr__empty(void)
{
    ipv6_addr_t addr = DEFAULT_TEST_IPV6_ADDR;
    ipv6_addr_t *out = NULL;

    TEST_ASSERT_EQUAL_INT(KERNEL_PID_UNDEF, gnrc_ipv6_netif_find_by_addr(&out, &addr));
    TEST_ASSERT_NULL(out);
}

static void test_ipv6_netif_find_by_addr__success(void)
{
    ipv6_addr_t addr = DEFAULT_TEST_IPV6_ADDR;
    ipv6_addr_t *out = NULL;

    test_ipv6_netif_add_addr__success(); /* adds DEFAULT_TEST_IPV6_ADDR to
                                          * DEFAULT_TEST_NETIF */

    TEST_ASSERT_EQUAL_INT(DEFAULT_TEST_NETIF, gnrc_ipv6_netif_find_by_addr(&out, &addr));
    TEST_ASSERT_NOT_NULL(out);
    TEST_ASSERT(out != &addr);
    TEST_ASSERT_EQUAL_INT(true, ipv6_addr_equal(out, &addr));
}

static void test_ipv6_netif_find_addr__no_iface(void)
{
    ipv6_addr_t addr = DEFAULT_TEST_IPV6_ADDR;

    TEST_ASSERT_NULL(gnrc_ipv6_netif_find_addr(DEFAULT_TEST_NETIF, &addr));
}

static void test_ipv6_netif_find_addr__wrong_iface(void)
{
    ipv6_addr_t addr = DEFAULT_TEST_IPV6_ADDR;

    test_ipv6_netif_add_addr__success(); /* adds DEFAULT_TEST_IPV6_ADDR to
                                          * DEFAULT_TEST_NETIF */

    TEST_ASSERT_NULL(gnrc_ipv6_netif_find_addr(OTHER_TEST_NETIF, &addr));
}

static void test_ipv6_netif_find_addr__wrong_addr(void)
{
    ipv6_addr_t addr = OTHER_TEST_IPV6_ADDR;

    test_ipv6_netif_add_addr__success(); /* adds DEFAULT_TEST_IPV6_ADDR to
                                          * DEFAULT_TEST_NETIF */

    TEST_ASSERT_NULL(gnrc_ipv6_netif_find_addr(DEFAULT_TEST_NETIF, &addr));
}

static void test_ipv6_netif_find_addr__success(void)
{
    ipv6_addr_t addr = DEFAULT_TEST_IPV6_ADDR;
    ipv6_addr_t *out = NULL;

    test_ipv6_netif_add_addr__success(); /* adds DEFAULT_TEST_IPV6_ADDR to
                                          * DEFAULT_TEST_NETIF */

    TEST_ASSERT_NOT_NULL((out = gnrc_ipv6_netif_find_addr(DEFAULT_TEST_NETIF, &addr)));
    TEST_ASSERT(out != &addr);
    TEST_ASSERT_EQUAL_INT(true, ipv6_addr_equal(out, &addr));

    /* also test for link local address */
    ipv6_addr_set_solicited_nodes(&addr, &addr);
    TEST_ASSERT_NOT_NULL((out = gnrc_ipv6_netif_find_addr(DEFAULT_TEST_NETIF, &addr)));
    TEST_ASSERT_EQUAL_INT(true, ipv6_addr_equal(out, &addr));
}

static void test_ipv6_netif_find_by_prefix__success1(void)
{
    ipv6_addr_t addr = DEFAULT_TEST_IPV6_PREFIX23;
    ipv6_addr_t *out = NULL;

    test_ipv6_netif_add_addr__success(); /* adds DEFAULT_TEST_IPV6_ADDR to
                                          * DEFAULT_TEST_NETIF */

    TEST_ASSERT_EQUAL_INT(DEFAULT_TEST_NETIF, gnrc_ipv6_netif_find_by_prefix(&out, &addr));
    TEST_ASSERT_NOT_NULL(out);
    TEST_ASSERT(out != &addr);
    TEST_ASSERT_EQUAL_INT(23, ipv6_addr_match_prefix(out, &addr));
}

static void test_ipv6_netif_find_by_prefix__success2(void)
{
    ipv6_addr_t addr = DEFAULT_TEST_IPV6_PREFIX18;
    ipv6_addr_t *out = NULL;

    test_ipv6_netif_add_addr__success(); /* adds DEFAULT_TEST_IPV6_ADDR to
                                          * DEFAULT_TEST_NETIF */

    TEST_ASSERT_EQUAL_INT(DEFAULT_TEST_NETIF, gnrc_ipv6_netif_find_by_prefix(&out, &addr));
    TEST_ASSERT_NOT_NULL(out);
    TEST_ASSERT(out != &addr);
    TEST_ASSERT_EQUAL_INT(18, ipv6_addr_match_prefix(out, &addr));
}

static void test_ipv6_netif_find_by_prefix__success3(void)
{
    ipv6_addr_t addr = DEFAULT_TEST_IPV6_PREFIX64;
    ipv6_addr_t *out = NULL;

    test_ipv6_netif_add_addr__success(); /* adds DEFAULT_TEST_IPV6_ADDR to
                                          * DEFAULT_TEST_NETIF */

    TEST_ASSERT_EQUAL_INT(DEFAULT_TEST_NETIF, gnrc_ipv6_netif_find_by_prefix(&out, &addr));
    TEST_ASSERT_NOT_NULL(out);
    TEST_ASSERT(out != &addr);
    TEST_ASSERT_EQUAL_INT(64, ipv6_addr_match_prefix(out, &addr));
}

static void test_ipv6_netif_match_prefix__success1(void)
{
    ipv6_addr_t addr = DEFAULT_TEST_IPV6_PREFIX23;
    ipv6_addr_t *out = NULL;

    test_ipv6_netif_add_addr__success(); /* adds DEFAULT_TEST_IPV6_ADDR to
                                          * DEFAULT_TEST_NETIF */

    TEST_ASSERT_NOT_NULL((out = gnrc_ipv6_netif_match_prefix(DEFAULT_TEST_NETIF, &addr)));
    TEST_ASSERT(out != &addr);
    TEST_ASSERT_EQUAL_INT(23, ipv6_addr_match_prefix(out, &addr));
}

static void test_ipv6_netif_match_prefix__success2(void)
{
    ipv6_addr_t addr = DEFAULT_TEST_IPV6_PREFIX18;
    ipv6_addr_t *out = NULL;

    test_ipv6_netif_add_addr__success(); /* adds DEFAULT_TEST_IPV6_ADDR to
                                          * DEFAULT_TEST_NETIF */

    TEST_ASSERT_NOT_NULL((out = gnrc_ipv6_netif_match_prefix(DEFAULT_TEST_NETIF, &addr)));
    TEST_ASSERT(out != &addr);
    TEST_ASSERT_EQUAL_INT(18, ipv6_addr_match_prefix(out, &addr));
}

static void test_ipv6_netif_match_prefix__success3(void)
{
    ipv6_addr_t addr = DEFAULT_TEST_IPV6_PREFIX64;
    ipv6_addr_t *out = NULL;

    test_ipv6_netif_add_addr__success(); /* adds DEFAULT_TEST_IPV6_ADDR to
                                          * DEFAULT_TEST_NETIF */

    TEST_ASSERT_NOT_NULL((out = gnrc_ipv6_netif_match_prefix(DEFAULT_TEST_NETIF, &addr)));
    TEST_ASSERT(out != &addr);
    TEST_ASSERT_EQUAL_INT(64, ipv6_addr_match_prefix(out, &addr));
}

static void test_ipv6_netif_find_best_src_addr__no_unicast(void)
{
    ipv6_addr_t ll_dst_addr = IPV6_ADDR_UNSPECIFIED;
    ipv6_addr_t mc_addr1 = IPV6_ADDR_ALL_NODES_LINK_LOCAL;
    ipv6_addr_t mc_addr2 = IPV6_ADDR_ALL_ROUTERS_SITE_LOCAL;

    ll_dst_addr.u8[15] = 1;
    ipv6_addr_set_link_local_prefix(&ll_dst_addr);

    test_ipv6_netif_add__success(); /* adds DEFAULT_TEST_NETIF as interface */
    TEST_ASSERT_NOT_NULL(gnrc_ipv6_netif_add_addr(DEFAULT_TEST_NETIF, &mc_addr1,
                                                  DEFAULT_TEST_PREFIX_LEN, 0));
    TEST_ASSERT_NOT_NULL(gnrc_ipv6_netif_add_addr(DEFAULT_TEST_NETIF, &mc_addr2,
                                                  DEFAULT_TEST_PREFIX_LEN, 0));

    TEST_ASSERT_NULL(gnrc_ipv6_netif_find_best_src_addr(DEFAULT_TEST_NETIF, &ll_dst_addr, false));
}

static void test_ipv6_netif_find_best_src_addr__success(void)
{
    ipv6_addr_t ll_addr1 = IPV6_ADDR_UNSPECIFIED;
    ipv6_addr_t ll_addr2 = IPV6_ADDR_UNSPECIFIED;
    ipv6_addr_t mc_addr = IPV6_ADDR_ALL_NODES_LINK_LOCAL;
    ipv6_addr_t *out = NULL;

    ll_addr1.u8[15] = 1;
    ipv6_addr_set_link_local_prefix(&ll_addr1);
    ll_addr2.u8[15] = 2;
    ipv6_addr_set_link_local_prefix(&ll_addr2);

    TEST_ASSERT_EQUAL_INT(126, ipv6_addr_match_prefix(&ll_addr2, &ll_addr1));

    test_ipv6_netif_add__success(); /* adds DEFAULT_TEST_NETIF as interface */
    TEST_ASSERT_NOT_NULL(gnrc_ipv6_netif_add_addr(DEFAULT_TEST_NETIF, &mc_addr,
                                                  DEFAULT_TEST_PREFIX_LEN, 0));
    TEST_ASSERT_NOT_NULL(gnrc_ipv6_netif_add_addr(DEFAULT_TEST_NETIF, &ll_addr1,
                                                  DEFAULT_TEST_PREFIX_LEN, 0));

    TEST_ASSERT_NOT_NULL((out = gnrc_ipv6_netif_find_best_src_addr(DEFAULT_TEST_NETIF, &ll_addr2, false)));
    TEST_ASSERT(out != &ll_addr1);
    TEST_ASSERT(out != &ll_addr2);
    TEST_ASSERT_EQUAL_INT(true, ipv6_addr_equal(out, &ll_addr1));
}

static void test_ipv6_netif_find_best_src_addr__multicast_input(void)
{
    ipv6_addr_t mc_addr = IPV6_ADDR_ALL_ROUTERS_LINK_LOCAL;
    ipv6_addr_t *out = NULL;

    /* Adds DEFAULT_TEST_NETIF as interface and to it fe80::1, fe80::2 and ff02::1 */
    test_ipv6_netif_find_best_src_addr__success();

    TEST_ASSERT_NOT_NULL((out = gnrc_ipv6_netif_find_best_src_addr(DEFAULT_TEST_NETIF, &mc_addr, false)));
    TEST_ASSERT_EQUAL_INT(false, ipv6_addr_equal(&mc_addr, out));
    TEST_ASSERT_EQUAL_INT(false, ipv6_addr_is_unspecified(out));
}

static void test_ipv6_netif_find_best_src_addr__other_subnet(void)
{
    ipv6_addr_t addr1 = DEFAULT_TEST_IPV6_ADDR;
    ipv6_addr_t addr2 = OTHER_TEST_IPV6_ADDR;

    ipv6_addr_t *out = NULL;

    test_ipv6_netif_add__success(); /* adds DEFAULT_TEST_NETIF as interface */
    TEST_ASSERT_NOT_NULL(gnrc_ipv6_netif_add_addr(DEFAULT_TEST_NETIF, &addr1, DEFAULT_TEST_PREFIX_LEN,
                         0));

    TEST_ASSERT_NOT_NULL((out = gnrc_ipv6_netif_find_best_src_addr(DEFAULT_TEST_NETIF, &addr2, false)));
    TEST_ASSERT(out != &addr1);
    TEST_ASSERT_EQUAL_INT(true, ipv6_addr_equal(out, &addr1));
}

static void test_ipv6_netif_addr_is_non_unicast__unicast(void)
{
    ipv6_addr_t addr = DEFAULT_TEST_IPV6_ADDR;
    ipv6_addr_t *out = NULL;

    test_ipv6_netif_add_addr__success(); /* adds DEFAULT_TEST_IPV6_ADDR to
                                          * DEFAULT_TEST_NETIF */

    TEST_ASSERT_NOT_NULL((out = gnrc_ipv6_netif_find_addr(DEFAULT_TEST_NETIF, &addr)));
    TEST_ASSERT_EQUAL_INT(false, gnrc_ipv6_netif_addr_is_non_unicast(out));
}

static void test_ipv6_netif_addr_is_non_unicast__anycast(void)
{
    ipv6_addr_t addr = DEFAULT_TEST_IPV6_ADDR;
    ipv6_addr_t *out = NULL;

    test_ipv6_netif_add__success(); /* adds DEFAULT_TEST_NETIF as interface */

    TEST_ASSERT_NOT_NULL(gnrc_ipv6_netif_add_addr(DEFAULT_TEST_NETIF, &addr, DEFAULT_TEST_PREFIX_LEN,
                         GNRC_IPV6_NETIF_ADDR_FLAGS_NON_UNICAST));

    TEST_ASSERT_NOT_NULL((out = gnrc_ipv6_netif_find_addr(DEFAULT_TEST_NETIF, &addr)));
    TEST_ASSERT_EQUAL_INT(true, gnrc_ipv6_netif_addr_is_non_unicast(out));
}

static void test_ipv6_netif_addr_is_non_unicast__multicast1(void)
{
    ipv6_addr_t addr = IPV6_ADDR_ALL_ROUTERS_LINK_LOCAL;
    ipv6_addr_t *out = NULL;

    test_ipv6_netif_add__success(); /* adds DEFAULT_TEST_NETIF as interface */

    TEST_ASSERT_NOT_NULL(gnrc_ipv6_netif_add_addr(DEFAULT_TEST_NETIF, &addr,
                                                  DEFAULT_TEST_PREFIX_LEN, 0));

    TEST_ASSERT_NOT_NULL((out = gnrc_ipv6_netif_find_addr(DEFAULT_TEST_NETIF, &addr)));
    TEST_ASSERT_EQUAL_INT(true, gnrc_ipv6_netif_addr_is_non_unicast(out));
}

static void test_ipv6_netif_addr_is_non_unicast__multicast2(void)
{
    ipv6_addr_t addr = IPV6_ADDR_ALL_ROUTERS_LINK_LOCAL;
    ipv6_addr_t *out = NULL;

    test_ipv6_netif_add__success(); /* adds DEFAULT_TEST_NETIF as interface */

    TEST_ASSERT_NOT_NULL(gnrc_ipv6_netif_add_addr(DEFAULT_TEST_NETIF, &addr, DEFAULT_TEST_PREFIX_LEN,
                                                  GNRC_IPV6_NETIF_ADDR_FLAGS_NON_UNICAST));

    TEST_ASSERT_NOT_NULL((out = gnrc_ipv6_netif_find_addr(DEFAULT_TEST_NETIF, &addr)));
    TEST_ASSERT_EQUAL_INT(true, gnrc_ipv6_netif_addr_is_non_unicast(out));
}

Test *tests_ipv6_netif_tests(void)
{
    EMB_UNIT_TESTFIXTURES(fixtures) {
        new_TestFixture(test_ipv6_netif_add__success),
        new_TestFixture(test_netif_add__success_with_ipv6),
        new_TestFixture(test_ipv6_netif_add__despite_free_entry),
        new_TestFixture(test_ipv6_netif_remove__not_allocated),
        new_TestFixture(test_ipv6_netif_remove__success),
        new_TestFixture(test_ipv6_netif_get__empty),
        new_TestFixture(test_ipv6_netif_add_addr__no_iface1),
        new_TestFixture(test_ipv6_netif_add_addr__no_iface2),
        new_TestFixture(test_ipv6_netif_add_addr__addr_NULL),
        new_TestFixture(test_ipv6_netif_add_addr__addr_unspecified),
        new_TestFixture(test_ipv6_netif_add_addr__full),
        new_TestFixture(test_ipv6_netif_add_addr__success),
        new_TestFixture(test_ipv6_netif_add_addr__despite_free_entry),
        new_TestFixture(test_ipv6_netif_remove_addr__not_allocated),
        new_TestFixture(test_ipv6_netif_remove_addr__success),
        new_TestFixture(test_ipv6_netif_reset_addr__success),
        new_TestFixture(test_ipv6_netif_find_by_addr__empty),
        new_TestFixture(test_ipv6_netif_find_by_addr__success),
        new_TestFixture(test_ipv6_netif_find_addr__no_iface),
        new_TestFixture(test_ipv6_netif_find_addr__wrong_iface),
        new_TestFixture(test_ipv6_netif_find_addr__wrong_addr),
        new_TestFixture(test_ipv6_netif_find_addr__success),
        new_TestFixture(test_ipv6_netif_find_by_prefix__success1),
        new_TestFixture(test_ipv6_netif_find_by_prefix__success2),
        new_TestFixture(test_ipv6_netif_find_by_prefix__success3),
        new_TestFixture(test_ipv6_netif_match_prefix__success1),
        new_TestFixture(test_ipv6_netif_match_prefix__success2),
        new_TestFixture(test_ipv6_netif_match_prefix__success3),
        new_TestFixture(test_ipv6_netif_find_best_src_addr__no_unicast),
        new_TestFixture(test_ipv6_netif_find_best_src_addr__success),
        new_TestFixture(test_ipv6_netif_find_best_src_addr__multicast_input),
        new_TestFixture(test_ipv6_netif_find_best_src_addr__other_subnet),
        new_TestFixture(test_ipv6_netif_addr_is_non_unicast__unicast),
        new_TestFixture(test_ipv6_netif_addr_is_non_unicast__anycast),
        new_TestFixture(test_ipv6_netif_addr_is_non_unicast__multicast1),
        new_TestFixture(test_ipv6_netif_addr_is_non_unicast__multicast2),
    };

    EMB_UNIT_TESTCALLER(ipv6_netif_tests, set_up, NULL, fixtures);

    return (Test *)&ipv6_netif_tests;
}

void tests_ipv6_netif(void)
{
    TESTS_RUN(tests_ipv6_netif_tests());
}
/** @} */