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/* Auto Tests: Reconnection.
*
* This test checks that when a tox instance is suspended for long enough that
* its friend connections time out, those connections are promptly
* re-established when the instance is resumed.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <stdlib.h>
#include <string.h>
#include <time.h>
#include "../testing/misc_tools.h"
#include "../toxcore/friend_connection.h"
#include "../toxcore/tox.h"
#include "../toxcore/util.h"
#include "check_compat.h"
#define TOX_COUNT 2
#define RECONNECT_TIME_MAX (FRIEND_CONNECTION_TIMEOUT + 3)
typedef struct State {
uint32_t index;
uint64_t clock;
} State;
#include "run_auto_test.h"
static uint32_t tox_connected_count(uint32_t tox_count, Tox **toxes, State *state, uint32_t index)
{
const size_t friend_count = tox_self_get_friend_list_size(toxes[index]);
uint32_t connected_count = 0;
for (size_t j = 0; j < friend_count; j++) {
if (tox_friend_get_connection_status(toxes[index], j, nullptr) != TOX_CONNECTION_NONE) {
++connected_count;
}
}
return connected_count;
}
static bool all_disconnected_from(uint32_t tox_count, Tox **toxes, State *state, uint32_t index)
{
for (uint32_t i = 0; i < tox_count; i++) {
if (i == index) {
continue;
}
if (tox_connected_count(tox_count, toxes, state, i) >= tox_count - 1) {
return false;
}
}
return true;
}
static void test_reconnect(Tox **toxes, State *state)
{
const time_t test_start_time = time(nullptr);
printf("letting connections settle\n");
do {
iterate_all_wait(TOX_COUNT, toxes, state, ITERATION_INTERVAL);
} while (time(nullptr) - test_start_time < 2);
uint16_t disconnect = random_u16() % TOX_COUNT;
printf("disconnecting #%u\n", state[disconnect].index);
do {
for (uint16_t i = 0; i < TOX_COUNT; ++i) {
if (i != disconnect) {
tox_iterate(toxes[i], &state[i]);
state[i].clock += 1000;
}
}
c_sleep(20);
} while (!all_disconnected_from(TOX_COUNT, toxes, state, disconnect));
const uint64_t reconnect_start_time = state[0].clock;
printf("reconnecting\n");
do {
iterate_all_wait(TOX_COUNT, toxes, state, ITERATION_INTERVAL);
} while (!all_friends_connected(TOX_COUNT, toxes));
const uint64_t reconnect_time = state[0].clock - reconnect_start_time;
ck_assert_msg(reconnect_time <= RECONNECT_TIME_MAX * 1000, "reconnection took %d seconds; expected at most %d seconds",
(int)(reconnect_time / 1000), RECONNECT_TIME_MAX);
printf("test_reconnect succeeded, took %d seconds\n", (int)(time(nullptr) - test_start_time));
}
int main(void)
{
setvbuf(stdout, nullptr, _IONBF, 0);
run_auto_test(TOX_COUNT, test_reconnect);
return 0;
}
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