git.m6w6.name Git - m6w6/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
   8  *  modification, are permitted provided that the following conditions are
   9  *  met:
  10  *
  11  *      * Redistributions of source code must retain the above copyright
  12  *  notice, this list of conditions and the following disclaimer.
  13  *
  14  *      * Redistributions in binary form must reproduce the above
  15  *  copyright notice, this list of conditions and the following disclaimer
  16  *  in the documentation and/or other materials provided with the
  17  *  distribution.
  18  *
  19  *      * The names of its contributors may not be used to endorse or
  20  *  promote products derived from this software without specific prior
  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
  26  *  A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  27  *  OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  28  *  SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  29  *  LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  30  *  DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  31  *  THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  32  *  (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  33  *  OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  34  *
  35  */
  36
  37 #include <mem_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 libtest::Framework *global_framework= NULL;
  63
  64 static test_return_t shutdown_servers(memcached_st *memc)
  65 {
  66   return TEST_SKIPPED;
  67
  68   test_skip_valgrind();
  69
  70   test_compare(memcached_server_count(memc), 1U);
  71
  72   // Disable a single server, just the first
  73   global_framework->servers().shutdown(0);
  74
  75   return TEST_SUCCESS;
  76 }
  77
  78 static test_return_t add_shutdown_servers(memcached_st *memc)
  79 {
  80   return TEST_SKIPPED;
  81
  82   test_skip_valgrind();
  83
  84   while (memcached_server_count(memc) < 2)
  85   {
  86     const char *argv[1]= { "add_shutdown_server" };
  87     test_true(global_framework->servers().start_socket_server("memcached", libtest::default_port(), argv));
  88     test_compare(MEMCACHED_SUCCESS, memcached_server_add(memc, "localhost", libtest::default_port()));
  89   }
  90
  91   // Disable a single server, just the first
  92   global_framework->servers().shutdown(0);
  93
  94   return TEST_SUCCESS;
  95 }
  96
  97 static test_return_t restart_servers(memcached_st *)
  98 {
  99   // Restart the servers
 100   global_framework->servers().restart();
 101
 102   return TEST_SUCCESS;
 103 }
 104
 105 #include "libmemcached/instance.hpp"
 106 static test_return_t cull_TEST(memcached_st *memc)
 107 {
 108   uint32_t count= memcached_server_count(memc);
 109
 110   // Do not do this in your code, it is not supported.
 111   memc->servers[0].options.is_dead= true;
 112   memc->state.is_time_for_rebuild= true;
 113
 114   uint32_t new_count= memcached_server_count(memc);
 115   test_compare(count, new_count);
 116
 117   return TEST_SUCCESS;
 118 }
 119
 120 static test_return_t MEMCACHED_SERVER_TEMPORARILY_DISABLED_TEST(memcached_st *memc)
 121 {
 122   test_compare(MEMCACHED_SUCCESS, memcached_behavior_set(memc, MEMCACHED_BEHAVIOR_RETRY_TIMEOUT, 30));
 123   test_compare_got(MEMCACHED_CONNECTION_FAILURE,
 124                    memcached_set(memc,
 125                                  test_literal_param("foo"),
 126                                  NULL, 0, time_t(0), uint32_t(0)),
 127                    memcached_last_error_message(memc));
 128
 129   /*
 130     Setting server_failure_counter==0 should not influence the timeout that we set above,
 131     since we check the timeout that is created by the failure before we check how many times
 132     a server has failed.
 133   */
 134   test_compare(MEMCACHED_SERVER_TEMPORARILY_DISABLED,
 135                memcached_set(memc, test_literal_param("foo"), NULL, 0, time_t(0), uint32_t(0)));
 136
 137   return TEST_SUCCESS;
 138 }
 139
 140 static test_return_t MEMCACHED_SERVER_TEMPORARILY_DISABLED_to_success_TEST(memcached_st *memc)
 141 {
 142   return TEST_SKIPPED;
 143
 144   test_compare_got(MEMCACHED_CONNECTION_FAILURE,
 145                    memcached_set(memc,
 146                                  test_literal_param("foo"),
 147                                  NULL, 0, time_t(0), uint32_t(0)),
 148                    memcached_last_error_message(memc));
 149
 150   /*
 151     Setting server_failure_counter==0 should not influence the timeout that we set above,
 152     since we check the timeout that is created by the failure before we check how many times
 153     a server has failed.
 154   */
 155   test_compare(MEMCACHED_SERVER_TEMPORARILY_DISABLED,
 156                memcached_set(memc, test_literal_param("foo"), NULL, 0, time_t(0), uint32_t(0)));
 157
 158   global_framework->servers().restart();
 159
 160   int limit= 5;
 161   memcached_return_t ret;
 162   do {
 163     libtest::dream(3, 0);
 164     ret= memcached_set(memc, test_literal_param("foo"), NULL, 0, time_t(0), uint32_t(0));
 165   } while (ret == MEMCACHED_SERVER_TEMPORARILY_DISABLED and --limit);
 166
 167   test_true(limit);
 168
 169   test_compare_got(MEMCACHED_SUCCESS, ret, memcached_last_error_message(memc));
 170
 171   return TEST_SUCCESS;
 172 }
 173
 174 static test_return_t MEMCACHED_SERVER_MARKED_DEAD_TEST(memcached_st *memc)
 175 {
 176   return TEST_SKIPPED;
 177
 178   test_compare(MEMCACHED_SUCCESS, memcached_behavior_set(memc, MEMCACHED_BEHAVIOR_RETRY_TIMEOUT, 30));
 179   test_compare(MEMCACHED_SUCCESS, memcached_behavior_set(memc, MEMCACHED_BEHAVIOR_AUTO_EJECT_HOSTS, true));
 180
 181   memcached_return_t ret;
 182   do {
 183     ret= memcached_set(memc,
 184                        test_literal_param("foo"),
 185                        NULL, 0, time_t(0), uint32_t(0));
 186   } while (ret == MEMCACHED_SUCCESS or ret == MEMCACHED_CONNECTION_FAILURE);
 187   test_compare(MEMCACHED_SERVER_TEMPORARILY_DISABLED, ret);
 188
 189   int limit= 5;
 190   do {
 191     libtest::dream(3, 0);
 192     ret= memcached_set(memc, test_literal_param("foo"), NULL, 0, time_t(0), uint32_t(0));
 193   } while ((ret == MEMCACHED_SERVER_TEMPORARILY_DISABLED or ret == MEMCACHED_SUCCESS) and --limit);
 194
 195   test_true(limit);
 196
 197   test_compare_got(MEMCACHED_SERVER_MARKED_DEAD, ret, memcached_last_error_message(memc));
 198
 199   return TEST_SUCCESS;
 200 }
 201
 202 test_st cull_TESTS[] ={
 203   { "cull servers", true, (test_callback_fn*)cull_TEST },
 204   { 0, 0, 0 }
 205 };
 206
 207 test_st server_temporarily_disabled_TESTS[] ={
 208   { "memcached_set(MEMCACHED_SERVER_TEMPORARILY_DISABLED -> MEMCACHED_SUCCESS)", true, (test_callback_fn*)MEMCACHED_SERVER_TEMPORARILY_DISABLED_to_success_TEST },
 209   { "memcached_set(MEMCACHED_SERVER_TEMPORARILY_DISABLED)", true, (test_callback_fn*)MEMCACHED_SERVER_TEMPORARILY_DISABLED_TEST },
 210   { 0, 0, 0 }
 211 };
 212
 213 test_st server_permanently_disabled_TESTS[] ={
 214   { "memcached_set(MEMCACHED_SERVER_MARKED_DEAD)", true, (test_callback_fn*)MEMCACHED_SERVER_MARKED_DEAD_TEST },
 215   { 0, 0, 0 }
 216 };
 217
 218 collection_st collection[] ={
 219   { "cull", (test_callback_fn*)shutdown_servers, (test_callback_fn*)restart_servers, cull_TESTS },
 220   { "server failed", (test_callback_fn*)shutdown_servers, (test_callback_fn*)restart_servers, server_temporarily_disabled_TESTS },
 221   { "server eject", (test_callback_fn*)add_shutdown_servers, (test_callback_fn*)restart_servers, server_permanently_disabled_TESTS },
 222   { 0, 0, 0, 0 }
 223 };
 224
 225 #include "tests/libmemcached_world.h"
 226
 227 void get_world(libtest::Framework* world)
 228 {
 229   world->servers().set_servers_to_run(1);
 230
 231   world->collections(collection);
 232
 233   world->create((test_callback_create_fn*)world_create);
 234   world->destroy((test_callback_destroy_fn*)world_destroy);
 235
 236   world->set_runner(new LibmemcachedRunner);
 237
 238   global_framework= world;
 239 }