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/* Copyright (c) 2014, The Tor Project, Inc. */
/* See LICENSE for licensing information */
#include <math.h>
#include "orconfig.h"
/* Libevent stuff */
#ifdef HAVE_EVENT2_EVENT_H
#include <event2/event.h>
#else
#include <event.h>
#endif
#define TOR_CHANNEL_INTERNAL_
#include "or.h"
#include "compat_libevent.h"
#define SCHEDULER_PRIVATE_
#include "scheduler.h"
/* Test suite stuff */
#include "test.h"
/* Statics in scheduler.c exposed to the test suite */
extern smartlist_t *channels_pending;
extern struct event *run_sched_ev;
extern uint64_t queue_heuristic;
extern time_t queue_heuristic_timestamp;
/* Event base for scheduelr tests */
static struct event_base *mock_event_base = NULL;
/* Setup for mock event stuff */
static void mock_event_free_all(void);
static void mock_event_init(void);
/* Mocks used by scheduler tests */
static struct event_base * tor_libevent_get_base_mock(void);
/* Scheduler test cases */
static void test_scheduler_initfree(void *arg);
/* Mock event init/free */
/* Shamelessly stolen from compat_libevent.c */
#define V(major, minor, patch) \
(((major) << 24) | ((minor) << 16) | ((patch) << 8))
static void
mock_event_free_all(void)
{
test_assert(mock_event_base != NULL);
if (mock_event_base) {
event_base_free(mock_event_base);
mock_event_base = NULL;
}
test_eq(mock_event_base, NULL);
done:
return;
}
static void
mock_event_init(void)
{
#ifdef HAVE_EVENT2_EVENT_H
struct event_config *cfg = NULL;
#endif
test_eq(mock_event_base, NULL);
/*
* Really cut down from tor_libevent_initialize of
* src/common/compat_libevent.c to kill config dependencies
*/
if (!mock_event_base) {
#ifdef HAVE_EVENT2_EVENT_H
cfg = event_config_new();
#if LIBEVENT_VERSION_NUMBER >= V(2,0,9)
/* We can enable changelist support with epoll, since we don't give
* Libevent any dup'd fds. This lets us avoid some syscalls. */
event_config_set_flag(cfg, EVENT_BASE_FLAG_EPOLL_USE_CHANGELIST);
#endif
mock_event_base = event_base_new_with_config(cfg);
event_config_free(cfg);
#else
mock_event_base = event_init();
#endif
}
test_assert(mock_event_base != NULL);
done:
return;
}
/* Mocks */
static struct event_base *
tor_libevent_get_base_mock(void)
{
return mock_event_base;
}
/* Test cases */
static void
test_scheduler_initfree(void *arg)
{
(void)arg;
test_eq(channels_pending, NULL);
test_eq(run_sched_ev, NULL);
mock_event_init();
MOCK(tor_libevent_get_base, tor_libevent_get_base_mock);
scheduler_init();
test_assert(channels_pending != NULL);
test_assert(run_sched_ev != NULL);
scheduler_free_all();
UNMOCK(tor_libevent_get_base);
mock_event_free_all();
test_eq(channels_pending, NULL);
test_eq(run_sched_ev, NULL);
done:
return;
}
static void
test_scheduler_queue_heuristic(void *arg)
{
time_t now = approx_time();
uint64_t qh;
(void)arg;
queue_heuristic = 0;
queue_heuristic_timestamp = 0;
/* Not yet inited case */
scheduler_update_queue_heuristic(now - 180);
test_eq(queue_heuristic, 0);
test_eq(queue_heuristic_timestamp, now - 180);
queue_heuristic = 1000000000L;
queue_heuristic_timestamp = now - 120;
scheduler_update_queue_heuristic(now - 119);
test_eq(queue_heuristic, 500000000L);
test_eq(queue_heuristic_timestamp, now - 119);
scheduler_update_queue_heuristic(now - 116);
test_eq(queue_heuristic, 62500000L);
test_eq(queue_heuristic_timestamp, now - 116);
qh = scheduler_get_queue_heuristic();
test_eq(qh, 0);
done:
return;
}
struct testcase_t scheduler_tests[] = {
{ "initfree", test_scheduler_initfree, TT_FORK, NULL, NULL },
{ "queue_heuristic", test_scheduler_queue_heuristic,
TT_FORK, NULL, NULL },
END_OF_TESTCASES
};
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