tests/test-byte-order.c

   1 /*
   2  * Copyright (c) 2010, 2011 Nicira, Inc.
   3  *
   4  * Licensed under the Apache License, Version 2.0 (the "License");
   5  * you may not use this file except in compliance with the License.
   6  * You may obtain a copy of the License at:
   7  *
   8  *     http://www.apache.org/licenses/LICENSE-2.0
   9  *
  10  * Unless required by applicable law or agreed to in writing, software
  11  * distributed under the License is distributed on an "AS IS" BASIS,
  12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  13  * See the License for the specific language governing permissions and
  14  * limitations under the License.
  15  */
  16
  17 #include <config.h>
  18 #undef NDEBUG
  19 #include "byte-order.h"
  20 #include <assert.h>
  21 #include <inttypes.h>
  22 #include "ovstest.h"
  23
  24 static void
  25 test_byte_order_main(int argc OVS_UNUSED, char *argv[] OVS_UNUSED)
  26 {
  27 #ifndef __CHECKER__
  28     /* I picked some random numbers. */
  29     const uint16_t s = 0xc9bd;
  30     const uint32_t l = 0xffe56ae8;
  31     const uint64_t ll = UINT64_C(0xb6fe878a9117ecdb);
  32
  33     assert(htons(ntohs(s)) == s);
  34     assert(ntohs(htons(s)) == s);
  35     assert(CONSTANT_HTONS(ntohs(s)) == s);
  36     assert(ntohs(CONSTANT_HTONS(s)) == s);
  37     assert(ntohs(CONSTANT_HTONS(l)) == (uint16_t) l);
  38     assert(ntohs(CONSTANT_HTONS(ll)) == (uint16_t) ll);
  39
  40     assert(htonl(ntohl(l)) == l);
  41     assert(ntohl(htonl(l)) == l);
  42     assert(CONSTANT_HTONL(ntohl(l)) == l);
  43     assert(ntohl(CONSTANT_HTONL(l)) == l);
  44     assert(ntohl(CONSTANT_HTONL(ll)) == (uint32_t) ll);
  45
  46     assert(htonll(ntohll(ll)) == ll);
  47     assert(ntohll(htonll(ll)) == ll);
  48     assert(CONSTANT_HTONLL(ntohll(ll)) == ll);
  49     assert(ntohll(CONSTANT_HTONLL(ll)));
  50 #else  /* __CHECKER__ */
  51 /* Making sparse happy with this code makes it unreadable, so don't bother. */
  52 #endif
  53 }
  54
  55 OVSTEST_REGISTER("test-byte-order", test_byte_order_main);