git.m6w6.name Git - awesomized/libmemcached/blob - testing/tests/memcached/generate_hash.cpp

   1 #include "testing/lib/common.hpp"
   2 #include "testing/fixtures/hashes.hpp"
   3
   4 static constexpr const uint32_t md5_hosts[] = {4U, 1U, 0U, 1U, 4U, 2U, 0U, 3U, 0U, 0U, 3U, 1U, 0U, 0U, 1U, 3U, 0U, 0U, 0U, 3U, 1U, 0U, 4U, 4U, 3U};
   5 static constexpr const uint32_t crc_hosts[] = {2U, 4U, 1U, 0U, 2U, 4U, 4U, 4U, 1U, 2U, 3U, 4U, 3U, 4U, 1U, 3U, 3U, 2U, 0U, 0U, 0U, 1U, 2U, 4U, 0U};
   6 static constexpr const uint32_t *hosts[] = {nullptr, md5_hosts, crc_hosts};
   7
   8 TEST_CASE("memcached_generate_hash") {
   9   MemcachedPtr memc(memcached(S("--server=localhost:1 --server=localhost:2 --server=localhost:3 --server=localhost:4 --server=localhost5 --DISTRIBUTION=modula")));
  10
  11   REQUIRE(*memc);
  12
  13   SECTION("generate hash value") {
  14     for (int f = MEMCACHED_HASH_DEFAULT; f < MEMCACHED_HASH_MAX; ++f) {
  15       auto h = static_cast<memcached_hash_t>(f);
  16
  17       if (h == MEMCACHED_HASH_CUSTOM) {
  18         continue;
  19       }
  20       if (MEMCACHED_SUCCESS != memcached_behavior_set_key_hash(*memc, h)) {
  21         WARN("hash algorithm not enabled: " << libmemcached_string_hash(h) << " (" << f << ")");
  22         continue;
  23       }
  24
  25       INFO("hash: " << libmemcached_string_hash(h));
  26
  27       auto n = 0;
  28       for (auto i : input) {
  29         CHECK(output[f][n] == memcached_generate_hash_value(S(i), h));
  30         ++n;
  31       }
  32     }
  33   }
  34
  35   SECTION("generate hash") {
  36     auto hash = GENERATE(as<memcached_hash_t>{}, MEMCACHED_HASH_MD5, MEMCACHED_HASH_CRC);
  37
  38     INFO("hash: " << libmemcached_string_hash(hash));
  39     REQUIRE(MEMCACHED_SUCCESS == memcached_behavior_set_key_hash(*memc, hash));
  40
  41     auto n = 0;
  42     for (auto i : input) {
  43       CHECK(hosts[hash][n] == memcached_generate_hash(*memc, S(i)));
  44       ++n;
  45     }
  46   }
  47 }