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   1 /*
   2     test_cases_channel_send.c -- Execution of specific meshlink black box test cases
   3     Copyright (C) 2018  Guus Sliepen <guus@meshlink.io>
   4
   5     This program is free software; you can redistribute it and/or modify
   6     it under the terms of the GNU General Public License as published by
   7     the Free Software Foundation; either version 2 of the License, or
   8     (at your option) any later version.
   9
  10     This program is distributed in the hope that it will be useful,
  11     but WITHOUT ANY WARRANTY; without even the implied warranty of
  12     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13     GNU General Public License for more details.
  14
  15     You should have received a copy of the GNU General Public License along
  16     with this program; if not, write to the Free Software Foundation, Inc.,
  17     51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  18 */
  19
  20 #ifdef NDEBUG
  21 #undef NDEBUG
  22 #endif
  23
  24 #include "execute_tests.h"
  25 #include "test_cases_channel_send.h"
  26 #include "../common/containers.h"
  27 #include "../common/test_step.h"
  28 #include "../common/common_handlers.h"
  29 #include <stdlib.h>
  30 #include <stdarg.h>
  31 #include <setjmp.h>
  32 #include <cmocka.h>
  33 #include <assert.h>
  34 #include <string.h>
  35 #include <pthread.h>
  36
  37 static void test_case_mesh_channel_send_01(void **state);
  38 static bool test_steps_mesh_channel_send_01(void);
  39 static void test_case_mesh_channel_send_02(void **state);
  40 static bool test_steps_mesh_channel_send_02(void);
  41 static void test_case_mesh_channel_send_03(void **state);
  42 static bool test_steps_mesh_channel_send_03(void);
  43 static void test_case_mesh_channel_send_04(void **state);
  44 static bool test_steps_mesh_channel_send_04(void);
  45
  46 static void receive_cb(meshlink_handle_t *mesh, meshlink_channel_t *channel, const void *dat, size_t len);
  47 static void status_cb(meshlink_handle_t *mesh, meshlink_node_t *node, bool reachable);
  48 static void poll_cb(meshlink_handle_t *mesh, meshlink_channel_t *channel, size_t len);
  49
  50 /* State structure for meshlink_channel_send Test Case #1 */
  51 static black_box_state_t test_mesh_channel_send_01_state = {
  52         .test_case_name = "test_case_mesh_channel_send_01",
  53 };
  54
  55 /* State structure for meshlink_channel_send Test Case #2 */
  56 static black_box_state_t test_mesh_channel_send_02_state = {
  57         .test_case_name = "test_case_mesh_channel_send_02",
  58 };
  59
  60 /* State structure for meshlink_channel_send Test Case #3 */
  61 static black_box_state_t test_mesh_channel_send_03_state = {
  62         .test_case_name = "test_case_mesh_channel_send_03",
  63 };
  64
  65 /* State structure for meshlink_channel_send Test Case #4 */
  66 static black_box_state_t test_mesh_channel_send_04_state = {
  67         .test_case_name = "test_case_mesh_channel_send_04",
  68 };
  69
  70 /* Execute meshlink_channel_send Test Case # 1*/
  71 static void test_case_mesh_channel_send_01(void **state) {
  72         execute_test(test_steps_mesh_channel_send_01, state);
  73 }
  74
  75 static pthread_mutex_t poll_lock = PTHREAD_MUTEX_INITIALIZER;
  76 static pthread_mutex_t bar_reach_lock = PTHREAD_MUTEX_INITIALIZER;
  77 static pthread_mutex_t bar_responded_lock = PTHREAD_MUTEX_INITIALIZER;
  78
  79 static pthread_cond_t poll_cond = PTHREAD_COND_INITIALIZER;
  80 static pthread_cond_t status_cond = PTHREAD_COND_INITIALIZER;
  81 static pthread_cond_t send_cond = PTHREAD_COND_INITIALIZER;
  82
  83 static bool polled;
  84 static bool bar_reachable;
  85 static bool bar_responded;
  86
  87 static void status_cb(meshlink_handle_t *mesh, meshlink_node_t *node, bool reachable) {
  88         (void)mesh;
  89
  90         if(!strcmp(node->name, "bar")) {
  91                 pthread_mutex_lock(& bar_reach_lock);
  92                 bar_reachable = reachable;
  93                 assert(!pthread_cond_broadcast(&status_cond));
  94                 pthread_mutex_unlock(& bar_reach_lock);
  95         }
  96 }
  97
  98 static bool reject_cb(meshlink_handle_t *mesh, meshlink_channel_t *channel, uint16_t port, const void *data, size_t len) {
  99         (void)mesh;
 100         (void)channel;
 101         (void)port;
 102         (void)data;
 103         (void)len;
 104         return false;
 105 }
 106
 107 static bool accept_cb(meshlink_handle_t *mesh, meshlink_channel_t *channel, uint16_t port, const void *data, size_t len) {
 108         (void)data;
 109
 110         assert(port == 7);
 111         assert(!len);
 112
 113         meshlink_set_channel_receive_cb(mesh, channel, receive_cb);
 114
 115         return true;
 116 }
 117
 118 /* channel receive callback */
 119 static void receive_cb(meshlink_handle_t *mesh, meshlink_channel_t *channel, const void *dat, size_t len) {
 120         (void)mesh;
 121         (void)channel;
 122
 123         if(len == 5 && !memcmp(dat, "Hello", 5)) {
 124                 pthread_mutex_lock(& bar_responded_lock);
 125                 bar_responded = true;
 126                 assert(!pthread_cond_broadcast(&send_cond));
 127                 pthread_mutex_unlock(& bar_responded_lock);
 128         }
 129 }
 130
 131 static void poll_cb(meshlink_handle_t *mesh, meshlink_channel_t *channel, size_t len) {
 132         (void)len;
 133
 134         meshlink_set_channel_poll_cb(mesh, channel, NULL);
 135         pthread_mutex_lock(&poll_lock);
 136         polled = true;
 137         assert(!pthread_cond_broadcast(&poll_cond));
 138         pthread_mutex_unlock(&poll_lock);
 139 }
 140
 141
 142 /* Test Steps for meshlink_channel_send Test Case # 1*/
 143 static bool test_steps_mesh_channel_send_01(void) {
 144         struct timespec timeout = {0};
 145         assert(meshlink_destroy("chan_send_conf.1"));
 146         assert(meshlink_destroy("chan_send_conf.2"));
 147
 148         // Open two new meshlink instance.
 149         meshlink_handle_t *mesh1 = meshlink_open("chan_send_conf.1", "foo", "channels", DEV_CLASS_BACKBONE);
 150         assert(mesh1 != NULL);
 151         meshlink_handle_t *mesh2 = meshlink_open("chan_send_conf.2", "bar", "channels", DEV_CLASS_BACKBONE);
 152         assert(mesh2 != NULL);
 153         meshlink_set_log_cb(mesh1, MESHLINK_DEBUG, meshlink_callback_logger);
 154         meshlink_set_log_cb(mesh2, MESHLINK_DEBUG, meshlink_callback_logger);
 155
 156         char *data = meshlink_export(mesh1);
 157         assert(data);
 158         assert(meshlink_import(mesh2, data));
 159         free(data);
 160         data = meshlink_export(mesh2);
 161         assert(data);
 162         assert(meshlink_import(mesh1, data));
 163         free(data);
 164
 165         // Set the callbacks.
 166
 167         meshlink_set_channel_accept_cb(mesh1, reject_cb);
 168         meshlink_set_channel_accept_cb(mesh2, accept_cb);
 169
 170         meshlink_set_node_status_cb(mesh1, status_cb);
 171
 172         // Start both instances
 173         bar_reachable = false;
 174         assert(meshlink_start(mesh1));
 175         assert(meshlink_start(mesh2));
 176
 177         timeout.tv_sec = time(NULL) + 10;
 178         pthread_mutex_lock(&bar_reach_lock);
 179
 180         while(bar_reachable == false) {
 181                 assert(!pthread_cond_timedwait(&status_cond, &bar_reach_lock, &timeout));
 182         }
 183
 184         pthread_mutex_unlock(&bar_reach_lock);
 185
 186         // Open a channel from foo to bar.
 187
 188         meshlink_node_t *bar = meshlink_get_node(mesh1, "bar");
 189         assert(bar);
 190
 191         bar_responded = false;
 192         meshlink_channel_t *channel = meshlink_channel_open(mesh1, bar, 7, NULL, NULL, 0);
 193         meshlink_set_channel_poll_cb(mesh1, channel, poll_cb);
 194
 195         timeout.tv_sec = time(NULL) + 10;
 196         pthread_mutex_lock(&poll_lock);
 197
 198         while(polled == false) {
 199                 assert(!pthread_cond_timedwait(&poll_cond, &poll_lock, &timeout));
 200         }
 201
 202         pthread_mutex_unlock(&poll_lock);
 203
 204         assert(meshlink_channel_send(mesh1, channel, "Hello", 5) >= 0);
 205
 206         timeout.tv_sec = time(NULL) + 20;
 207         pthread_mutex_lock(&bar_responded_lock);
 208
 209         if(bar_responded == false) {
 210                 assert(!pthread_cond_timedwait(&send_cond, &bar_responded_lock, &timeout));
 211         }
 212
 213         pthread_mutex_unlock(&bar_responded_lock);
 214
 215         // Clean up.
 216
 217         meshlink_close(mesh2);
 218         meshlink_close(mesh1);
 219         assert(meshlink_destroy("chan_send_conf.1"));
 220         assert(meshlink_destroy("chan_send_conf.2"));
 221
 222         return true;
 223 }
 224
 225 /* Execute meshlink_channel_send Test Case # 2*/
 226 static void test_case_mesh_channel_send_02(void **state) {
 227         execute_test(test_steps_mesh_channel_send_02, state);
 228 }
 229
 230 /* Test Steps for meshlink_channel_send Test Case # 2*/
 231 static bool test_steps_mesh_channel_send_02(void) {
 232         struct timespec timeout = {0};
 233         assert(meshlink_destroy("chan_send_conf.5"));
 234
 235         // Open new meshlink instance.
 236
 237         meshlink_handle_t *mesh1 = meshlink_open("chan_send_conf.5", "foo", "channels", DEV_CLASS_BACKBONE);
 238         assert(mesh1 != NULL);
 239
 240         meshlink_set_channel_accept_cb(mesh1, accept_cb);
 241
 242         // Start node instance
 243
 244         assert(meshlink_start(mesh1));
 245
 246         meshlink_node_t *node = meshlink_get_self(mesh1);
 247         assert(node);
 248
 249         meshlink_channel_t *channel = meshlink_channel_open(mesh1, node, 7, receive_cb, NULL, 0);
 250         meshlink_set_channel_poll_cb(mesh1, channel, poll_cb);
 251
 252         timeout.tv_sec = time(NULL) + 10;
 253         pthread_mutex_lock(&poll_lock);
 254
 255         while(polled == false) {
 256                 assert(!pthread_cond_timedwait(&poll_cond, &poll_lock, &timeout));
 257         }
 258
 259         pthread_mutex_unlock(&poll_lock);
 260
 261         ssize_t send_return = meshlink_channel_send(NULL, channel, "Hello", 5);
 262
 263         assert_int_equal(send_return, -1);
 264
 265         // Clean up.
 266
 267         meshlink_close(mesh1);
 268         assert(meshlink_destroy("chan_send_conf.5"));
 269
 270         return true;
 271 }
 272
 273 /* Execute meshlink_channel_send Test Case # 3*/
 274 static void test_case_mesh_channel_send_03(void **state) {
 275         execute_test(test_steps_mesh_channel_send_03, state);
 276 }
 277
 278 /* Test Steps for meshlink_channel_send Test Case # 3*/
 279 static bool test_steps_mesh_channel_send_03(void) {
 280         assert(meshlink_destroy("chan_send_conf.7"));
 281         // Open new meshlink instance.
 282
 283         meshlink_handle_t *mesh1 = meshlink_open("chan_send_conf.7", "foo", "channels", DEV_CLASS_BACKBONE);
 284         assert(mesh1 != NULL);
 285         meshlink_set_channel_accept_cb(mesh1, accept_cb);
 286
 287         // Start node instance
 288
 289         assert(meshlink_start(mesh1));
 290
 291         ssize_t send_return = meshlink_channel_send(mesh1, NULL, "Hello", 5);
 292
 293         assert_int_equal(send_return, -1);
 294
 295         // Clean up.
 296
 297         meshlink_close(mesh1);
 298         assert(meshlink_destroy("chan_send_conf.7"));
 299
 300         return true;
 301 }
 302
 303 /* Execute meshlink_channel_send Test Case # 4*/
 304 static void test_case_mesh_channel_send_04(void **state) {
 305         execute_test(test_steps_mesh_channel_send_04, state);
 306 }
 307
 308 /* Test Steps for meshlink_channel_send Test Case # 4*/
 309 static bool test_steps_mesh_channel_send_04(void) {
 310         struct timespec timeout = {0};
 311         assert(meshlink_destroy("chan_send_conf.9"));
 312         // Open two new meshlink instance.
 313
 314         meshlink_handle_t *mesh1 = meshlink_open("chan_send_conf.9", "foo", "channels", DEV_CLASS_BACKBONE);
 315         assert(mesh1 != NULL);
 316
 317         meshlink_set_channel_accept_cb(mesh1, accept_cb);
 318
 319         // Start node instance
 320
 321         assert(meshlink_start(mesh1));
 322
 323         meshlink_node_t *node = meshlink_get_self(mesh1);
 324         assert(node);
 325
 326         meshlink_channel_t *channel = meshlink_channel_open(mesh1, node, 7, receive_cb, NULL, 0);
 327         meshlink_set_channel_poll_cb(mesh1, channel, poll_cb);
 328
 329         timeout.tv_sec = time(NULL) + 10;
 330         pthread_mutex_lock(&poll_lock);
 331
 332         while(polled == false) {
 333                 assert(!pthread_cond_timedwait(&poll_cond, &poll_lock, &timeout));
 334         }
 335
 336         pthread_mutex_unlock(&poll_lock);
 337
 338         ssize_t send_return = meshlink_channel_send(mesh1, channel, NULL, 5);
 339
 340         assert_int_equal(send_return, -1);
 341
 342         // Clean up.
 343
 344         meshlink_close(mesh1);
 345         assert(meshlink_destroy("chan_send_conf.9"));
 346
 347         return true;
 348 }
 349
 350 int test_meshlink_channel_send(void) {
 351         const struct CMUnitTest blackbox_channel_send_tests[] = {
 352                 cmocka_unit_test_prestate_setup_teardown(test_case_mesh_channel_send_01, NULL, NULL,
 353                                 (void *)&test_mesh_channel_send_01_state),
 354                 cmocka_unit_test_prestate_setup_teardown(test_case_mesh_channel_send_02, NULL, NULL,
 355                                 (void *)&test_mesh_channel_send_02_state),
 356                 cmocka_unit_test_prestate_setup_teardown(test_case_mesh_channel_send_03, NULL, NULL,
 357                                 (void *)&test_mesh_channel_send_03_state),
 358                 cmocka_unit_test_prestate_setup_teardown(test_case_mesh_channel_send_04, NULL, NULL,
 359                                 (void *)&test_mesh_channel_send_04_state)
 360         };
 361
 362         total_tests += sizeof(blackbox_channel_send_tests) / sizeof(blackbox_channel_send_tests[0]);
 363
 364         return cmocka_run_group_tests(blackbox_channel_send_tests, NULL, NULL);
 365 }