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   1 /*  vim:expandtab:shiftwidth=2:tabstop=2:smarttab:
   2  *
   3  *  Libmemcached Client and Server
   4  *
   5  *  Copyright (C) 2011 Data Differential, http://datadifferential.com/
   6  *  All rights reserved.
   7  *
   8  *  Redistribution and use in source and binary forms, with or without
   9  *  modification, are permitted provided that the following conditions are
  10  *  met:
  11  *
  12  *      * Redistributions of source code must retain the above copyright
  13  *  notice, this list of conditions and the following disclaimer.
  14  *
  15  *      * Redistributions in binary form must reproduce the above
  16  *  copyright notice, this list of conditions and the following disclaimer
  17  *  in the documentation and/or other materials provided with the
  18  *  distribution.
  19  *
  20  *      * The names of its contributors may not be used to endorse or
  21  *  promote products derived from this software without specific prior
  22  *  written permission.
  23  *
  24  *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  25  *  "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  26  *  LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  27  *  A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  28  *  OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  29  *  SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  30  *  LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  31  *  DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  32  *  THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  33  *  (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  34  *  OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  35  *
  36  */
  37
  38 #include <config.h>
  39
  40 #include <vector>
  41 #include <iostream>
  42 #include <string>
  43
  44 #define BUILDING_LIBMEMCACHED
  45 #include <libmemcached/memcached.h>
  46
  47 #include "tests/parser.h"
  48 #include "tests/print.h"
  49
  50 enum scanner_type_t
  51 {
  52   NIL,
  53   UNSIGNED,
  54   SIGNED,
  55   ARRAY
  56 };
  57
  58
  59 struct scanner_string_st {
  60   const char *c_str;
  61   size_t size;
  62 };
  63
  64 static inline scanner_string_st scanner_string(const char *arg, size_t arg_size)
  65 {
  66   scanner_string_st local= { arg, arg_size };
  67   return local;
  68 }
  69
  70 #define make_scanner_string(X) scanner_string((X), static_cast<size_t>(sizeof(X) - 1))
  71
  72 static struct scanner_string_st scanner_string_null= { 0, 0};
  73
  74 struct scanner_variable_t {
  75   enum scanner_type_t type;
  76   struct scanner_string_st option;
  77   struct scanner_string_st result;
  78   test_return_t (*check_func)(memcached_st *memc, const scanner_string_st &hostname);
  79 };
  80
  81 // Check and make sure the first host is what we expect it to be
  82 static test_return_t __check_host(memcached_st *memc, const scanner_string_st &hostname)
  83 {
  84   memcached_server_instance_st instance=
  85     memcached_server_instance_by_position(memc, 0);
  86
  87   test_true(instance);
  88
  89   const char *first_hostname = memcached_server_name(instance);
  90   test_true(first_hostname);
  91   test_strcmp(first_hostname, hostname.c_str);
  92
  93   return TEST_SUCCESS;
  94 }
  95
  96 // Check and make sure the prefix_key is what we expect it to be
  97 static test_return_t __check_prefix_key(memcached_st *memc, const scanner_string_st &hostname)
  98 {
  99   memcached_server_instance_st instance=
 100     memcached_server_instance_by_position(memc, 0);
 101
 102   test_true(instance);
 103
 104   const char *first_hostname = memcached_server_name(instance);
 105   test_true(first_hostname);
 106   test_strcmp(first_hostname, hostname.c_str);
 107
 108   return TEST_SUCCESS;
 109 }
 110
 111 static test_return_t __check_IO_MSG_WATERMARK(memcached_st *memc, const scanner_string_st &value)
 112 {
 113   uint64_t value_number;
 114
 115   value_number= atoll(value.c_str);
 116
 117   test_true(memcached_behavior_get(memc, MEMCACHED_BEHAVIOR_IO_MSG_WATERMARK) == value_number);
 118   return TEST_SUCCESS;
 119 }
 120
 121 static test_return_t __check_AUTO_EJECT_HOSTS(memcached_st *memc, const scanner_string_st &value)
 122 {
 123   (void)value;
 124   test_true(memcached_behavior_get(memc, MEMCACHED_BEHAVIOR_AUTO_EJECT_HOSTS));
 125   return TEST_SUCCESS;
 126 }
 127
 128 static test_return_t __check_CACHE_LOOKUPS(memcached_st *memc, const scanner_string_st &value)
 129 {
 130   (void)value;
 131   test_true(memcached_behavior_get(memc, MEMCACHED_BEHAVIOR_CACHE_LOOKUPS));
 132   return TEST_SUCCESS;
 133 }
 134
 135 static test_return_t __check_NOREPLY(memcached_st *memc, const scanner_string_st &value)
 136 {
 137   (void)value;
 138   test_true(memcached_behavior_get(memc, MEMCACHED_BEHAVIOR_NOREPLY));
 139   return TEST_SUCCESS;
 140 }
 141
 142 static test_return_t __check_VERIFY_KEY(memcached_st *memc, const scanner_string_st &value)
 143 {
 144   (void)value;
 145   test_true(memcached_behavior_get(memc, MEMCACHED_BEHAVIOR_VERIFY_KEY));
 146   return TEST_SUCCESS;
 147 }
 148
 149 static test_return_t __check_distribution_RANDOM(memcached_st *memc, const scanner_string_st &value)
 150 {
 151   (void)value;
 152   test_true(memcached_behavior_get(memc, MEMCACHED_BEHAVIOR_DISTRIBUTION) == MEMCACHED_DISTRIBUTION_RANDOM);
 153   return TEST_SUCCESS;
 154 }
 155
 156 scanner_variable_t test_server_strings[]= {
 157   { ARRAY, make_scanner_string("--server=localhost"), make_scanner_string("localhost"), __check_host },
 158   { ARRAY, make_scanner_string("--server=10.0.2.1"), make_scanner_string("10.0.2.1"), __check_host },
 159   { ARRAY, make_scanner_string("--server=example.com"), make_scanner_string("example.com"), __check_host },
 160   { ARRAY, make_scanner_string("--server=localhost:30"), make_scanner_string("localhost"), __check_host },
 161   { ARRAY, make_scanner_string("--server=10.0.2.1:20"), make_scanner_string("10.0.2.1"), __check_host },
 162   { ARRAY, make_scanner_string("--server=example.com:1024"), make_scanner_string("example.com"), __check_host },
 163   { NIL, scanner_string_null, scanner_string_null, NULL }
 164 };
 165
 166 scanner_variable_t test_servers_strings[]= {
 167   { ARRAY, make_scanner_string("--servers=localhost:11221,localhost:11222,localhost:11223,localhost:11224,localhost:11225"), scanner_string_null, NULL },
 168   { ARRAY, make_scanner_string("--servers=a.example.com:81,localhost:82,b.example.com"), scanner_string_null, NULL },
 169   { ARRAY, make_scanner_string("--servers=localhost,localhost:80"), scanner_string_null, NULL },
 170   { NIL, scanner_string_null, scanner_string_null, NULL}
 171 };
 172
 173
 174 scanner_variable_t bad_test_strings[]= {
 175   { ARRAY, make_scanner_string("-servers=localhost:11221,localhost:11222,localhost:11223,localhost:11224,localhost:11225"), scanner_string_null, NULL },
 176   { ARRAY, make_scanner_string("-- servers=a.example.com:81,localhost:82,b.example.com"), scanner_string_null, NULL },
 177   { ARRAY, make_scanner_string("--servers=localhost+80"), scanner_string_null, NULL},
 178   { ARRAY, make_scanner_string("--servers=localhost.com."), scanner_string_null, NULL},
 179   { ARRAY, make_scanner_string("--server=localhost.com."), scanner_string_null, NULL},
 180   { ARRAY, make_scanner_string("--server=localhost.com.:80"), scanner_string_null, NULL},
 181   { NIL, scanner_string_null, scanner_string_null, NULL}
 182 };
 183
 184 scanner_variable_t test_number_options[]= {
 185   { ARRAY,  make_scanner_string("--CONNECT_TIMEOUT=456"), scanner_string_null, NULL },
 186   { ARRAY,  make_scanner_string("--IO_MSG_WATERMARK=456"), make_scanner_string("456"), __check_IO_MSG_WATERMARK },
 187   { ARRAY,  make_scanner_string("--IO_BYTES_WATERMARK=456"), scanner_string_null, NULL },
 188   { ARRAY,  make_scanner_string("--IO_KEY_PREFETCH=456"), scanner_string_null, NULL },
 189   { ARRAY,  make_scanner_string("--NUMBER_OF_REPLICAS=456"), scanner_string_null, NULL },
 190   { ARRAY,  make_scanner_string("--POLL_TIMEOUT=456"), scanner_string_null, NULL },
 191   { ARRAY,  make_scanner_string("--RCV_TIMEOUT=456"), scanner_string_null, NULL },
 192   { ARRAY,  make_scanner_string("--RETRY_TIMEOUT=456"), scanner_string_null, NULL },
 193   { ARRAY,  make_scanner_string("--SERVER_FAILURE_LIMIT=456"), scanner_string_null, NULL },
 194   { ARRAY,  make_scanner_string("--SND_TIMEOUT=456"), scanner_string_null, NULL },
 195   { ARRAY,  make_scanner_string("--SOCKET_RECV_SIZE=456"), scanner_string_null, NULL },
 196   { ARRAY,  make_scanner_string("--SOCKET_SEND_SIZE=456"), scanner_string_null, NULL },
 197   { NIL, scanner_string_null, scanner_string_null, NULL}
 198 };
 199
 200 scanner_variable_t test_boolean_options[]= {
 201   { ARRAY,  make_scanner_string("--AUTO_EJECT_HOSTS"), scanner_string_null, __check_AUTO_EJECT_HOSTS },
 202   { ARRAY,  make_scanner_string("--BINARY_PROTOCOL"), scanner_string_null, NULL },
 203   { ARRAY,  make_scanner_string("--BUFFER_REQUESTS"), scanner_string_null, NULL },
 204   { ARRAY,  make_scanner_string("--CACHE_LOOKUPS"), scanner_string_null, __check_CACHE_LOOKUPS },
 205   { ARRAY,  make_scanner_string("--HASH_WITH_PREFIX_KEY"), scanner_string_null, NULL },
 206   { ARRAY,  make_scanner_string("--KETAMA_WEIGHTED"), scanner_string_null, NULL },
 207   { ARRAY,  make_scanner_string("--NOREPLY"), scanner_string_null, __check_NOREPLY },
 208   { ARRAY,  make_scanner_string("--RANDOMIZE_REPLICA_READ"), scanner_string_null, NULL },
 209   { ARRAY,  make_scanner_string("--SORT_HOSTS"), scanner_string_null, NULL },
 210   { ARRAY,  make_scanner_string("--SUPPORT_CAS"), scanner_string_null, NULL },
 211   { ARRAY,  make_scanner_string("--TCP_NODELAY"), scanner_string_null, NULL },
 212   { ARRAY,  make_scanner_string("--TCP_KEEPALIVE"), scanner_string_null, NULL },
 213   { ARRAY,  make_scanner_string("--TCP_KEEPIDLE"), scanner_string_null, NULL },
 214   { ARRAY,  make_scanner_string("--USE_UDP"), scanner_string_null, NULL },
 215   { ARRAY,  make_scanner_string("--VERIFY_KEY"), scanner_string_null, __check_VERIFY_KEY },
 216   { NIL, scanner_string_null, scanner_string_null, NULL}
 217 };
 218
 219 scanner_variable_t prefix_key_strings[]= {
 220   { ARRAY, make_scanner_string("--PREFIX_KEY=foo"), make_scanner_string("foo"), __check_prefix_key },
 221   { ARRAY, make_scanner_string("--PREFIX-KEY=\"foo\""), make_scanner_string("foo"), __check_prefix_key },
 222   { ARRAY, make_scanner_string("--PREFIX-KEY=\"This is a very long key\""), make_scanner_string("This is a very long key"), __check_prefix_key },
 223   { NIL, scanner_string_null, scanner_string_null, NULL}
 224 };
 225
 226 scanner_variable_t distribution_strings[]= {
 227   { ARRAY,  make_scanner_string("--DISTRIBUTION=consistent"), scanner_string_null, NULL },
 228   { ARRAY,  make_scanner_string("--DISTRIBUTION=consistent,CRC"), scanner_string_null, NULL },
 229   { ARRAY,  make_scanner_string("--DISTRIBUTION=consistent,MD5"), scanner_string_null, NULL },
 230   { ARRAY,  make_scanner_string("--DISTRIBUTION=random"), scanner_string_null, __check_distribution_RANDOM },
 231   { ARRAY,  make_scanner_string("--DISTRIBUTION=modula"), scanner_string_null, NULL },
 232   { NIL, scanner_string_null, scanner_string_null, NULL}
 233 };
 234
 235 scanner_variable_t hash_strings[]= {
 236   { ARRAY,  make_scanner_string("--HASH=CRC"), scanner_string_null, NULL },
 237   { ARRAY,  make_scanner_string("--HASH=FNV1A_32"), scanner_string_null, NULL },
 238   { ARRAY,  make_scanner_string("--HASH=FNV1A_64"), scanner_string_null, NULL },
 239   { ARRAY,  make_scanner_string("--HASH=FNV1_32"), scanner_string_null, NULL },
 240   { ARRAY,  make_scanner_string("--HASH=FNV1_64"), scanner_string_null, NULL },
 241   { ARRAY,  make_scanner_string("--HASH=JENKINS"), scanner_string_null, NULL },
 242   { ARRAY,  make_scanner_string("--HASH=MD5"), scanner_string_null, NULL },
 243   { ARRAY,  make_scanner_string("--HASH=MURMUR"), scanner_string_null, NULL },
 244   { NIL, scanner_string_null, scanner_string_null, NULL}
 245 };
 246
 247
 248 static test_return_t _test_option(scanner_variable_t *scanner, bool test_true= true)
 249 {
 250   (void)test_true;
 251   memcached_st *memc;
 252   memc= memcached_create(NULL);
 253
 254   for (scanner_variable_t *ptr= scanner; ptr->type != NIL; ptr++)
 255   {
 256     memcached_return_t rc;
 257     rc= memcached_parse_configuration(memc, ptr->option.c_str, ptr->option.size);
 258     if (test_true)
 259     {
 260       if (rc != MEMCACHED_SUCCESS)
 261         memcached_error_print(memc);
 262
 263       test_true(rc == MEMCACHED_SUCCESS);
 264
 265       if (ptr->check_func)
 266       {
 267         (*ptr->check_func)(memc, ptr->result);
 268       }
 269     }
 270     else
 271     {
 272       test_false_with(rc == MEMCACHED_SUCCESS, ptr->option.c_str);
 273     }
 274     memcached_reset(memc);
 275   }
 276   memcached_free(memc);
 277
 278   return TEST_SUCCESS;
 279 }
 280
 281 test_return_t server_test(memcached_st *junk)
 282 {
 283   (void)junk;
 284   return _test_option(test_server_strings);
 285 }
 286
 287 test_return_t servers_test(memcached_st *junk)
 288 {
 289   (void)junk;
 290
 291   test_return_t rc;
 292   if ((rc= _test_option(test_server_strings)) != TEST_SUCCESS)
 293   {
 294     return rc;
 295   }
 296
 297 #if 0
 298     memcached_server_fn callbacks[1];
 299     callbacks[0]= server_print_callback;
 300     memcached_server_cursor(memc, callbacks, NULL,  1);
 301 #endif
 302
 303   if ((rc= _test_option(bad_test_strings, false)) != TEST_SUCCESS)
 304   {
 305     return rc;
 306   }
 307
 308   return TEST_SUCCESS;
 309 }
 310
 311 test_return_t parser_number_options_test(memcached_st *junk)
 312 {
 313   (void)junk;
 314   return _test_option(test_number_options);
 315 }
 316
 317 test_return_t parser_boolean_options_test(memcached_st *junk)
 318 {
 319   (void)junk;
 320   return _test_option(test_boolean_options);
 321 }
 322
 323 test_return_t behavior_parser_test(memcached_st *junk)
 324 {
 325   (void)junk;
 326   return TEST_SUCCESS;
 327 }
 328
 329 test_return_t parser_hash_test(memcached_st *junk)
 330 {
 331   (void)junk;
 332   return _test_option(hash_strings);
 333 }
 334
 335 test_return_t parser_distribution_test(memcached_st *junk)
 336 {
 337   (void)junk;
 338   return _test_option(distribution_strings);
 339 }
 340
 341 test_return_t parser_key_prefix_test(memcached_st *junk)
 342 {
 343   (void)junk;
 344   return _test_option(distribution_strings);
 345 }
 346
 347 #define SUPPORT_EXAMPLE_CNF "support/example.cnf"
 348
 349 test_return_t memcached_parse_configure_file_test(memcached_st *junk)
 350 {
 351   (void)junk;
 352
 353   if (access(SUPPORT_EXAMPLE_CNF, R_OK))
 354     return TEST_SKIPPED;
 355
 356   memcached_st memc;
 357   memcached_st *memc_ptr= memcached_create(&memc);
 358
 359   test_true(memc_ptr);
 360
 361   memcached_return_t rc= memcached_parse_configure_file(memc_ptr, memcached_string_with_size(SUPPORT_EXAMPLE_CNF));
 362   test_true_got(rc == MEMCACHED_SUCCESS, memcached_last_error_message(memc_ptr) ? memcached_last_error_message(memc_ptr) : memcached_strerror(NULL, rc));
 363   memcached_free(memc_ptr);
 364
 365   return TEST_SUCCESS;
 366 }
 367
 368 test_return_t memcached_create_with_options_with_filename(memcached_st *junk)
 369 {
 370   (void)junk;
 371   if (access(SUPPORT_EXAMPLE_CNF, R_OK))
 372     return TEST_SKIPPED;
 373
 374   memcached_st *memc_ptr;
 375   memc_ptr= memcached_create_with_options(STRING_WITH_LEN("--CONFIGURE-FILE=\"support/example.cnf\""));
 376   test_true_got(memc_ptr, memcached_last_error_message(memc_ptr));
 377   memcached_free(memc_ptr);
 378
 379   return TEST_SUCCESS;
 380 }
 381
 382 test_return_t libmemcached_check_configuration_with_filename_test(memcached_st *junk)
 383 {
 384   (void)junk;
 385
 386   if (access(SUPPORT_EXAMPLE_CNF, R_OK))
 387     return TEST_SKIPPED;
 388
 389   memcached_return_t rc;
 390   char buffer[BUFSIZ];
 391
 392   rc= libmemcached_check_configuration(STRING_WITH_LEN("--CONFIGURE-FILE=\"support/example.cnf\""), buffer, sizeof(buffer));
 393   test_true_got(rc == MEMCACHED_SUCCESS, buffer);
 394
 395   rc= libmemcached_check_configuration(STRING_WITH_LEN("--CONFIGURE-FILE=support/example.cnf"), buffer, sizeof(buffer));
 396   test_false_with(rc == MEMCACHED_SUCCESS, buffer);
 397
 398   rc= libmemcached_check_configuration(STRING_WITH_LEN("--CONFIGURE-FILE=\"bad-path/example.cnf\""), buffer, sizeof(buffer));
 399   test_true_got(rc == MEMCACHED_ERRNO, buffer);
 400
 401   return TEST_SUCCESS;
 402 }
 403
 404 test_return_t libmemcached_check_configuration_test(memcached_st *junk)
 405 {
 406   (void)junk;
 407
 408   memcached_return_t rc;
 409   char buffer[BUFSIZ];
 410
 411   rc= libmemcached_check_configuration(STRING_WITH_LEN("--server=localhost"), buffer, sizeof(buffer));
 412   test_true_got(rc == MEMCACHED_SUCCESS, buffer);
 413
 414   rc= libmemcached_check_configuration(STRING_WITH_LEN("--dude=localhost"), buffer, sizeof(buffer));
 415   test_false_with(rc == MEMCACHED_SUCCESS, buffer);
 416   test_true(rc == MEMCACHED_PARSE_ERROR);
 417
 418   return TEST_SUCCESS;
 419 }
 420
 421 test_return_t memcached_create_with_options_test(memcached_st *junk)
 422 {
 423   (void)junk;
 424
 425   memcached_st *memc_ptr;
 426   memc_ptr= memcached_create_with_options(STRING_WITH_LEN("--server=localhost"));
 427   test_true_got(memc_ptr, memcached_last_error_message(memc_ptr));
 428   memcached_free(memc_ptr);
 429
 430   memc_ptr= memcached_create_with_options(STRING_WITH_LEN("--dude=localhost"));
 431   test_false_with(memc_ptr, memcached_last_error_message(memc_ptr));
 432
 433   return TEST_SUCCESS;
 434 }
 435
 436 test_return_t test_include_keyword(memcached_st *junk)
 437 {
 438   if (access(SUPPORT_EXAMPLE_CNF, R_OK))
 439     return TEST_SKIPPED;
 440
 441   (void)junk;
 442   char buffer[BUFSIZ];
 443   memcached_return_t rc;
 444   rc= libmemcached_check_configuration(STRING_WITH_LEN("INCLUDE \"support/example.cnf\""), buffer, sizeof(buffer));
 445   test_true_got(rc == MEMCACHED_SUCCESS, buffer);
 446
 447   return TEST_SUCCESS;
 448 }
 449
 450 test_return_t test_end_keyword(memcached_st *junk)
 451 {
 452   (void)junk;
 453   char buffer[BUFSIZ];
 454   memcached_return_t rc;
 455   rc= libmemcached_check_configuration(STRING_WITH_LEN("--server=localhost END bad keywords"), buffer, sizeof(buffer));
 456   test_true_got(rc == MEMCACHED_SUCCESS, buffer);
 457
 458   return TEST_SUCCESS;
 459 }
 460
 461 test_return_t test_reset_keyword(memcached_st *junk)
 462 {
 463   (void)junk;
 464   char buffer[BUFSIZ];
 465   memcached_return_t rc;
 466   rc= libmemcached_check_configuration(STRING_WITH_LEN("--server=localhost reset --server=bad.com"), buffer, sizeof(buffer));
 467   test_true_got(rc == MEMCACHED_SUCCESS, buffer);
 468
 469   return TEST_SUCCESS;
 470 }
 471
 472 test_return_t test_error_keyword(memcached_st *junk)
 473 {
 474   (void)junk;
 475   char buffer[BUFSIZ];
 476   memcached_return_t rc;
 477   rc= libmemcached_check_configuration(STRING_WITH_LEN("--server=localhost ERROR --server=bad.com"), buffer, sizeof(buffer));
 478   test_true_got(rc != MEMCACHED_SUCCESS, buffer);
 479
 480   return TEST_SUCCESS;
 481 }
 482
 483 #define RANDOM_STRINGS 50
 484 test_return_t random_statement_build_test(memcached_st *junk)
 485 {
 486   (void)junk;
 487   std::vector<scanner_string_st *> option_list;
 488
 489   for (scanner_variable_t *ptr= test_server_strings; ptr->type != NIL; ptr++)
 490     option_list.push_back(&ptr->option);
 491
 492 #if 0
 493   for (scanner_variable_t *ptr= test_servers_strings; ptr->type != NIL; ptr++)
 494     option_list.push_back(&ptr->option);
 495 #endif
 496
 497   for (scanner_variable_t *ptr= test_number_options; ptr->type != NIL; ptr++)
 498     option_list.push_back(&ptr->option);
 499
 500   for (scanner_variable_t *ptr= test_boolean_options; ptr->type != NIL; ptr++)
 501     option_list.push_back(&ptr->option);
 502
 503   for (scanner_variable_t *ptr= prefix_key_strings; ptr->type != NIL; ptr++)
 504     option_list.push_back(&ptr->option);
 505
 506   for (scanner_variable_t *ptr= distribution_strings; ptr->type != NIL; ptr++)
 507     option_list.push_back(&ptr->option);
 508
 509   for (scanner_variable_t *ptr= hash_strings; ptr->type != NIL; ptr++)
 510     option_list.push_back(&ptr->option);
 511
 512   for (uint32_t x= 0; x < RANDOM_STRINGS; x++)
 513   {
 514     std::string random_options;
 515
 516     uint32_t number_of= random() % option_list.size();
 517     for (uint32_t options= 0; options < number_of; options++)
 518     {
 519       random_options+= option_list[random() % option_list.size()]->c_str;
 520       random_options+= " ";
 521     }
 522
 523     memcached_return_t rc;
 524     memcached_st *memc_ptr= memcached_create(NULL);
 525     rc= memcached_parse_configuration(memc_ptr, random_options.c_str(), random_options.size() -1);
 526     if (rc == MEMCACHED_PARSE_ERROR)
 527     {
 528       std::cerr << std::endl << "Failed to parse(" << memcached_strerror(NULL, rc) << "): " << random_options << std::endl;
 529       memcached_error_print(memc_ptr);
 530     }
 531     memcached_free(memc_ptr);
 532   }
 533
 534   return TEST_SUCCESS;
 535 }