git.m6w6.name Git - awesomized/libmemcached/blob - tests/failure.cc

   1 /*  vim:expandtab:shiftwidth=2:tabstop=2:smarttab:
   2  *
   3  *  Libmemcached library
   4  *
   5  *  Copyright (C) 2011 Data Differential, http://datadifferential.com/
   6  *
   7  *  Redistribution and use in source and binary forms, with or without
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   9  *  met:
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  11  *      * Redistributions of source code must retain the above copyright
  12  *  notice, this list of conditions and the following disclaimer.
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  14  *      * Redistributions in binary form must reproduce the above
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  19  *      * The names of its contributors may not be used to endorse or
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  21  *  written permission.
  22  *
  23  *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  24  *  "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  25  *  LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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  33  *  OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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  35  */
  36
  37 #include <config.h>
  38
  39 /*
  40   C++ interface test
  41 */
  42 #include <libmemcached-1.0/memcached.hpp>
  43 #include <libmemcached/server_instance.h>
  44 #include <libtest/test.hpp>
  45
  46 #include <cstdio>
  47 #include <cstdlib>
  48 #include <cstring>
  49 #include <sys/time.h>
  50 #include <sys/types.h>
  51 #include <sys/stat.h>
  52 #include <unistd.h>
  53 #include <ctime>
  54
  55 #include <string>
  56 #include <iostream>
  57
  58 using namespace std;
  59 using namespace memcache;
  60 using namespace libtest;
  61
  62 Framework *global_framework= NULL;
  63
  64 static test_return_t shutdown_servers(memcached_st *memc)
  65 {
  66   test_compare(memcached_server_count(memc), 1U);
  67
  68   // Disable a single server, just the first
  69   global_framework->servers().shutdown(0);
  70
  71   return TEST_SUCCESS;
  72 }
  73
  74 static test_return_t add_shutdown_servers(memcached_st *memc)
  75 {
  76   while (memcached_server_count(memc) < 2)
  77   {
  78     const char *argv[1]= { "add_shutdown_server" };
  79     test_true(global_framework->servers().start_socket_server("memcached", libtest::default_port(), 1, argv));
  80     test_compare(MEMCACHED_SUCCESS, memcached_server_add(memc, "localhost", libtest::default_port()));
  81   }
  82
  83   // Disable a single server, just the first
  84   global_framework->servers().shutdown(0);
  85
  86   return TEST_SUCCESS;
  87 }
  88
  89 static test_return_t restart_servers(memcached_st *)
  90 {
  91   // Restart the servers
  92   global_framework->servers().restart();
  93
  94   return TEST_SUCCESS;
  95 }
  96
  97 static test_return_t cull_TEST(memcached_st *memc)
  98 {
  99   uint32_t count= memcached_server_count(memc);
 100
 101   // Do not do this in your code, it is not supported.
 102   memc->servers[0].options.is_dead= true;
 103   memc->state.is_time_for_rebuild= true;
 104
 105   uint32_t new_count= memcached_server_count(memc);
 106   test_compare(count, new_count);
 107
 108   return TEST_SUCCESS;
 109 }
 110
 111 static test_return_t MEMCACHED_SERVER_TEMPORARILY_DISABLED_TEST(memcached_st *memc)
 112 {
 113   test_compare(MEMCACHED_SUCCESS, memcached_behavior_set(memc, MEMCACHED_BEHAVIOR_RETRY_TIMEOUT, 30));
 114   test_compare_got(MEMCACHED_CONNECTION_FAILURE,
 115                    memcached_set(memc,
 116                                  test_literal_param("foo"),
 117                                  NULL, 0, time_t(0), uint32_t(0)),
 118                    memcached_last_error_message(memc));
 119
 120   /*
 121     Setting server_failure_counter==0 should not influence the timeout that we set above,
 122     since we check the timeout that is created by the failure before we check how many times
 123     a server has failed.
 124   */
 125   test_compare(MEMCACHED_SERVER_TEMPORARILY_DISABLED,
 126                memcached_set(memc, test_literal_param("foo"), NULL, 0, time_t(0), uint32_t(0)));
 127
 128   return TEST_SUCCESS;
 129 }
 130
 131 static test_return_t MEMCACHED_SERVER_TEMPORARILY_DISABLED_to_success_TEST(memcached_st *memc)
 132 {
 133   test_compare_got(MEMCACHED_CONNECTION_FAILURE,
 134                    memcached_set(memc,
 135                                  test_literal_param("foo"),
 136                                  NULL, 0, time_t(0), uint32_t(0)),
 137                    memcached_last_error_message(memc));
 138
 139   /*
 140     Setting server_failure_counter==0 should not influence the timeout that we set above,
 141     since we check the timeout that is created by the failure before we check how many times
 142     a server has failed.
 143   */
 144   test_compare(MEMCACHED_SERVER_TEMPORARILY_DISABLED,
 145                memcached_set(memc, test_literal_param("foo"), NULL, 0, time_t(0), uint32_t(0)));
 146
 147   global_framework->servers().restart();
 148
 149   memcached_return_t ret;
 150   do {
 151     sleep(3);
 152     ret= memcached_set(memc, test_literal_param("foo"), NULL, 0, time_t(0), uint32_t(0));
 153   } while (ret == MEMCACHED_SERVER_TEMPORARILY_DISABLED);
 154
 155   test_compare_got(MEMCACHED_SUCCESS, ret, memcached_last_error_message(memc));
 156
 157   return TEST_SUCCESS;
 158 }
 159
 160 static test_return_t MEMCACHED_SERVER_MARKED_DEAD_TEST(memcached_st *memc)
 161 {
 162   test_compare(MEMCACHED_SUCCESS, memcached_behavior_set(memc, MEMCACHED_BEHAVIOR_RETRY_TIMEOUT, 30));
 163   test_compare(MEMCACHED_SUCCESS, memcached_behavior_set(memc, MEMCACHED_BEHAVIOR_AUTO_EJECT_HOSTS, true));
 164
 165   memcached_return_t ret;
 166   do {
 167     ret= memcached_set(memc,
 168                        test_literal_param("foo"),
 169                        NULL, 0, time_t(0), uint32_t(0));
 170   } while (ret == MEMCACHED_SUCCESS or ret == MEMCACHED_CONNECTION_FAILURE);
 171   test_compare(MEMCACHED_SERVER_TEMPORARILY_DISABLED, ret);
 172
 173   do {
 174     sleep(3);
 175     ret= memcached_set(memc, test_literal_param("foo"), NULL, 0, time_t(0), uint32_t(0));
 176   } while (ret == MEMCACHED_SERVER_TEMPORARILY_DISABLED or ret == MEMCACHED_SUCCESS);
 177
 178   test_compare_got(MEMCACHED_SERVER_MARKED_DEAD, ret, memcached_last_error_message(memc));
 179
 180   return TEST_SUCCESS;
 181 }
 182
 183 test_st cull_TESTS[] ={
 184   { "cull servers", true, (test_callback_fn*)cull_TEST },
 185   { 0, 0, 0 }
 186 };
 187
 188 test_st server_temporarily_disabled_TESTS[] ={
 189   { "memcached_set(MEMCACHED_SERVER_TEMPORARILY_DISABLED)", true, (test_callback_fn*)MEMCACHED_SERVER_TEMPORARILY_DISABLED_TEST },
 190   { "memcached_set(MEMCACHED_SERVER_TEMPORARILY_DISABLED -> MEMCACHED_SUCCESS)", true, (test_callback_fn*)MEMCACHED_SERVER_TEMPORARILY_DISABLED_to_success_TEST },
 191   { 0, 0, 0 }
 192 };
 193
 194 test_st server_permanently_disabled_TESTS[] ={
 195   { "memcached_set(MEMCACHED_SERVER_MARKED_DEAD)", true, (test_callback_fn*)MEMCACHED_SERVER_MARKED_DEAD_TEST },
 196   { 0, 0, 0 }
 197 };
 198
 199 collection_st collection[] ={
 200   { "cull", (test_callback_fn*)shutdown_servers, (test_callback_fn*)restart_servers, cull_TESTS },
 201   { "server failed", (test_callback_fn*)shutdown_servers, (test_callback_fn*)restart_servers, server_temporarily_disabled_TESTS },
 202   { "server eject", (test_callback_fn*)add_shutdown_servers, (test_callback_fn*)restart_servers, server_permanently_disabled_TESTS },
 203   { 0, 0, 0, 0 }
 204 };
 205
 206 #include "libmemcached_world.h"
 207
 208 void get_world(Framework *world)
 209 {
 210   world->servers().set_count(1);
 211
 212   world->collections= collection;
 213
 214   world->_create= (test_callback_create_fn*)world_create;
 215   world->_destroy= (test_callback_destroy_fn*)world_destroy;
 216
 217   world->item._startup= (test_callback_fn*)world_test_startup;
 218   world->item.set_pre((test_callback_fn*)world_pre_run);
 219   world->item.set_flush((test_callback_fn*)world_flush);
 220   world->item.set_post((test_callback_fn*)world_post_run);
 221   world->_on_error= (test_callback_error_fn*)world_on_error;
 222
 223   world->collection_startup= (test_callback_fn*)world_container_startup;
 224   world->collection_shutdown= (test_callback_fn*)world_container_shutdown;
 225
 226   world->set_runner(&defualt_libmemcached_runner);
 227
 228   global_framework= world;
 229 }