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