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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         assert(port == 7);
 105         assert(!len);
 106
 107         meshlink_set_channel_receive_cb(mesh, channel, receive_cb);
 108
 109         return true;
 110 }
 111
 112 /* channel receive callback */
 113 static void receive_cb(meshlink_handle_t *mesh, meshlink_channel_t *channel, const void *dat, size_t len) {
 114         if(len == 5 && !memcmp(dat, "Hello", 5)) {
 115                 pthread_mutex_lock(& bar_responded_lock);
 116                 bar_responded = true;
 117                 assert(!pthread_cond_broadcast(&send_cond));
 118                 pthread_mutex_unlock(& bar_responded_lock);
 119         }
 120 }
 121
 122 static void poll_cb(meshlink_handle_t *mesh, meshlink_channel_t *channel, size_t len) {
 123         (void)len;
 124
 125         meshlink_set_channel_poll_cb(mesh, channel, NULL);
 126         pthread_mutex_lock(&poll_lock);
 127         polled = true;
 128         assert(!pthread_cond_broadcast(&poll_cond));
 129         pthread_mutex_unlock(&poll_lock);
 130 }
 131
 132
 133 /* Test Steps for meshlink_channel_send Test Case # 1*/
 134 static bool test_steps_mesh_channel_send_01(void) {
 135         struct timespec timeout = {0};
 136         meshlink_destroy("chan_send_conf.1");
 137         meshlink_destroy("chan_send_conf.2");
 138
 139         // Open two new meshlink instance.
 140         meshlink_handle_t *mesh1 = meshlink_open("chan_send_conf.1", "foo", "channels", DEV_CLASS_BACKBONE);
 141         assert(mesh1 != NULL);
 142         meshlink_handle_t *mesh2 = meshlink_open("chan_send_conf.2", "bar", "channels", DEV_CLASS_BACKBONE);
 143         assert(mesh2 != NULL);
 144         meshlink_set_log_cb(mesh1, MESHLINK_DEBUG, meshlink_callback_logger);
 145         meshlink_set_log_cb(mesh2, MESHLINK_DEBUG, meshlink_callback_logger);
 146
 147         char *data = meshlink_export(mesh1);
 148         assert(data);
 149         assert(meshlink_import(mesh2, data));
 150         free(data);
 151         data = meshlink_export(mesh2);
 152         assert(data);
 153         assert(meshlink_import(mesh1, data));
 154         free(data);
 155
 156         // Set the callbacks.
 157
 158         meshlink_set_channel_accept_cb(mesh1, reject_cb);
 159         meshlink_set_channel_accept_cb(mesh2, accept_cb);
 160
 161         meshlink_set_node_status_cb(mesh1, status_cb);
 162
 163         // Start both instances
 164         bar_reachable = false;
 165         assert(meshlink_start(mesh1));
 166         assert(meshlink_start(mesh2));
 167
 168         timeout.tv_sec = time(NULL) + 10;
 169         pthread_mutex_lock(&bar_reach_lock);
 170
 171         while(bar_reachable == false) {
 172                 assert(!pthread_cond_timedwait(&status_cond, &bar_reach_lock, &timeout));
 173         }
 174
 175         pthread_mutex_unlock(&bar_reach_lock);
 176
 177         // Open a channel from foo to bar.
 178
 179         meshlink_node_t *bar = meshlink_get_node(mesh1, "bar");
 180         assert(bar);
 181
 182         bar_responded = false;
 183         meshlink_channel_t *channel = meshlink_channel_open(mesh1, bar, 7, NULL, NULL, 0);
 184         meshlink_set_channel_poll_cb(mesh1, channel, poll_cb);
 185
 186         timeout.tv_sec = time(NULL) + 10;
 187         pthread_mutex_lock(&poll_lock);
 188
 189         while(polled == false) {
 190                 assert(!pthread_cond_timedwait(&poll_cond, &poll_lock, &timeout));
 191         }
 192
 193         pthread_mutex_unlock(&poll_lock);
 194
 195         assert(meshlink_channel_send(mesh1, channel, "Hello", 5) >= 0);
 196
 197         timeout.tv_sec = time(NULL) + 20;
 198         pthread_mutex_lock(&bar_responded_lock);
 199
 200         if(bar_responded == false) {
 201                 assert(!pthread_cond_timedwait(&send_cond, &bar_responded_lock, &timeout));
 202         }
 203
 204         pthread_mutex_unlock(&bar_responded_lock);
 205
 206         // Clean up.
 207
 208         meshlink_close(mesh2);
 209         meshlink_close(mesh1);
 210         meshlink_destroy("chan_send_conf.1");
 211         meshlink_destroy("chan_send_conf.2");
 212
 213         return true;
 214 }
 215
 216 /* Execute meshlink_channel_send Test Case # 2*/
 217 static void test_case_mesh_channel_send_02(void **state) {
 218         execute_test(test_steps_mesh_channel_send_02, state);
 219 }
 220
 221 /* Test Steps for meshlink_channel_send Test Case # 2*/
 222 static bool test_steps_mesh_channel_send_02(void) {
 223         struct timespec timeout = {0};
 224         meshlink_destroy("chan_send_conf.5");
 225
 226         // Open new meshlink instance.
 227
 228         meshlink_handle_t *mesh1 = meshlink_open("chan_send_conf.5", "foo", "channels", DEV_CLASS_BACKBONE);
 229         assert(mesh1 != NULL);
 230
 231         meshlink_set_channel_accept_cb(mesh1, accept_cb);
 232
 233         // Start node instance
 234
 235         assert(meshlink_start(mesh1));
 236
 237         meshlink_node_t *node = meshlink_get_self(mesh1);
 238         assert(node);
 239
 240         meshlink_channel_t *channel = meshlink_channel_open(mesh1, node, 7, receive_cb, NULL, 0);
 241         meshlink_set_channel_poll_cb(mesh1, channel, poll_cb);
 242
 243         timeout.tv_sec = time(NULL) + 10;
 244         pthread_mutex_lock(&poll_lock);
 245
 246         while(polled == false) {
 247                 assert(!pthread_cond_timedwait(&poll_cond, &poll_lock, &timeout));
 248         }
 249
 250         pthread_mutex_unlock(&poll_lock);
 251
 252         ssize_t send_return = meshlink_channel_send(NULL, channel, "Hello", 5);
 253
 254         assert_int_equal(send_return, -1);
 255
 256         // Clean up.
 257
 258         meshlink_close(mesh1);
 259         meshlink_destroy("chan_send_conf.5");
 260
 261         return true;
 262 }
 263
 264 /* Execute meshlink_channel_send Test Case # 3*/
 265 static void test_case_mesh_channel_send_03(void **state) {
 266         execute_test(test_steps_mesh_channel_send_03, state);
 267 }
 268
 269 /* Test Steps for meshlink_channel_send Test Case # 3*/
 270 static bool test_steps_mesh_channel_send_03(void) {
 271         struct timespec timeout = {0};
 272         meshlink_destroy("chan_send_conf.7");
 273         // Open new meshlink instance.
 274
 275         meshlink_handle_t *mesh1 = meshlink_open("chan_send_conf.7", "foo", "channels", DEV_CLASS_BACKBONE);
 276         assert(mesh1 != NULL);
 277         meshlink_set_channel_accept_cb(mesh1, accept_cb);
 278
 279         // Start node instance
 280
 281         assert(meshlink_start(mesh1));
 282
 283         ssize_t send_return = meshlink_channel_send(mesh1, NULL, "Hello", 5);
 284
 285         assert_int_equal(send_return, -1);
 286
 287         // Clean up.
 288
 289         meshlink_close(mesh1);
 290         meshlink_destroy("chan_send_conf.7");
 291
 292         return true;
 293 }
 294
 295 /* Execute meshlink_channel_send Test Case # 4*/
 296 static void test_case_mesh_channel_send_04(void **state) {
 297         execute_test(test_steps_mesh_channel_send_04, state);
 298 }
 299
 300 /* Test Steps for meshlink_channel_send Test Case # 4*/
 301 static bool test_steps_mesh_channel_send_04(void) {
 302         struct timespec timeout = {0};
 303         meshlink_destroy("chan_send_conf.9");
 304         // Open two new meshlink instance.
 305
 306         meshlink_handle_t *mesh1 = meshlink_open("chan_send_conf.9", "foo", "channels", DEV_CLASS_BACKBONE);
 307         assert(mesh1 != NULL);
 308
 309         meshlink_set_channel_accept_cb(mesh1, accept_cb);
 310
 311         // Start node instance
 312
 313         assert(meshlink_start(mesh1));
 314
 315         meshlink_node_t *node = meshlink_get_self(mesh1);
 316         assert(node);
 317
 318         meshlink_channel_t *channel = meshlink_channel_open(mesh1, node, 7, receive_cb, NULL, 0);
 319         meshlink_set_channel_poll_cb(mesh1, channel, poll_cb);
 320
 321         timeout.tv_sec = time(NULL) + 10;
 322         pthread_mutex_lock(&poll_lock);
 323
 324         while(polled == false) {
 325                 assert(!pthread_cond_timedwait(&poll_cond, &poll_lock, &timeout));
 326         }
 327
 328         pthread_mutex_unlock(&poll_lock);
 329
 330         ssize_t send_return = meshlink_channel_send(mesh1, channel, NULL, 5);
 331
 332         assert_int_equal(send_return, -1);
 333
 334         // Clean up.
 335
 336         meshlink_close(mesh1);
 337         meshlink_destroy("chan_send_conf.9");
 338
 339         return true;
 340 }
 341
 342 int test_meshlink_channel_send(void) {
 343         const struct CMUnitTest blackbox_channel_send_tests[] = {
 344                 cmocka_unit_test_prestate_setup_teardown(test_case_mesh_channel_send_01, NULL, NULL,
 345                                 (void *)&test_mesh_channel_send_01_state),
 346                 cmocka_unit_test_prestate_setup_teardown(test_case_mesh_channel_send_02, NULL, NULL,
 347                                 (void *)&test_mesh_channel_send_02_state),
 348                 cmocka_unit_test_prestate_setup_teardown(test_case_mesh_channel_send_03, NULL, NULL,
 349                                 (void *)&test_mesh_channel_send_03_state),
 350                 cmocka_unit_test_prestate_setup_teardown(test_case_mesh_channel_send_04, NULL, NULL,
 351                                 (void *)&test_mesh_channel_send_04_state)
 352         };
 353
 354         total_tests += sizeof(blackbox_channel_send_tests) / sizeof(blackbox_channel_send_tests[0]);
 355
 356         return cmocka_run_group_tests(blackbox_channel_send_tests, NULL, NULL);
 357 }