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/* Copyright (c) 2010-2019, The Tor Project, Inc. */
/* See LICENSE for licensing information */
#define COMPAT_LIBEVENT_PRIVATE
#include "orconfig.h"
#include "core/or/or.h"
#include "test/test.h"
#include "lib/evloop/compat_libevent.h"
#include <event2/event.h>
#include "test/log_test_helpers.h"
#define NS_MODULE compat_libevent
static void
test_compat_libevent_logging_callback(void *ignored)
{
(void)ignored;
setup_full_capture_of_logs(LOG_DEBUG);
libevent_logging_callback(_EVENT_LOG_DEBUG, "hello world");
expect_log_msg("Message from libevent: hello world\n");
expect_log_severity(LOG_DEBUG);
tt_int_op(smartlist_len(mock_saved_logs()), OP_EQ, 1);
mock_clean_saved_logs();
libevent_logging_callback(_EVENT_LOG_MSG, "hello world another time");
expect_log_msg("Message from libevent: hello world another time\n");
expect_log_severity(LOG_INFO);
tt_int_op(smartlist_len(mock_saved_logs()), OP_EQ, 1);
mock_clean_saved_logs();
libevent_logging_callback(_EVENT_LOG_WARN, "hello world a third time");
expect_log_msg("Warning from libevent: hello world a third time\n");
expect_log_severity(LOG_WARN);
tt_int_op(smartlist_len(mock_saved_logs()), OP_EQ, 1);
mock_clean_saved_logs();
libevent_logging_callback(_EVENT_LOG_ERR, "hello world a fourth time");
expect_log_msg("Error from libevent: hello world a fourth time\n");
expect_log_severity(LOG_ERR);
tt_int_op(smartlist_len(mock_saved_logs()), OP_EQ, 1);
mock_clean_saved_logs();
libevent_logging_callback(42, "hello world a fifth time");
expect_log_msg("Message [42] from libevent: hello world a fifth time\n");
expect_log_severity(LOG_WARN);
tt_int_op(smartlist_len(mock_saved_logs()), OP_EQ, 1);
mock_clean_saved_logs();
libevent_logging_callback(_EVENT_LOG_DEBUG,
"012345678901234567890123456789"
"012345678901234567890123456789"
"012345678901234567890123456789"
"012345678901234567890123456789"
"012345678901234567890123456789"
"012345678901234567890123456789"
"012345678901234567890123456789"
"012345678901234567890123456789"
"012345678901234567890123456789"
"012345678901234567890123456789"
"012345678901234567890123456789"
"012345678901234567890123456789"
);
expect_log_msg("Message from libevent: "
"012345678901234567890123456789"
"012345678901234567890123456789"
"012345678901234567890123456789"
"012345678901234567890123456789"
"012345678901234567890123456789"
"012345678901234567890123456789"
"012345678901234567890123456789"
"012345678901234567890123456789"
"012345678901234567890123456789"
"012345678901234567890123456789"
"012345678901234567890123456789"
"012345678901234567890123456789\n");
expect_log_severity(LOG_DEBUG);
tt_int_op(smartlist_len(mock_saved_logs()), OP_EQ, 1);
mock_clean_saved_logs();
libevent_logging_callback(42, "xxx\n");
expect_log_msg("Message [42] from libevent: xxx\n");
expect_log_severity(LOG_WARN);
tt_int_op(smartlist_len(mock_saved_logs()), OP_EQ, 1);
suppress_libevent_log_msg("something");
mock_clean_saved_logs();
libevent_logging_callback(_EVENT_LOG_MSG, "hello there");
expect_log_msg("Message from libevent: hello there\n");
expect_log_severity(LOG_INFO);
tt_int_op(smartlist_len(mock_saved_logs()), OP_EQ, 1);
mock_clean_saved_logs();
libevent_logging_callback(_EVENT_LOG_MSG, "hello there something else");
expect_no_log_msg("hello there something else");
if (mock_saved_logs())
tt_int_op(smartlist_len(mock_saved_logs()), OP_EQ, 0);
// No way of verifying the result of this, it seems =/
configure_libevent_logging();
done:
suppress_libevent_log_msg(NULL);
teardown_capture_of_logs();
}
static void
test_compat_libevent_header_version(void *ignored)
{
(void)ignored;
const char *res;
res = tor_libevent_get_header_version_str();
tt_str_op(res, OP_EQ, LIBEVENT_VERSION);
done:
(void)0;
}
/* Test for postloop events */
/* Event callback to increment a counter. */
static void
increment_int_counter_cb(periodic_timer_t *timer, void *arg)
{
(void)timer;
int *ctr = arg;
++*ctr;
}
static int activated_counter = 0;
/* Mainloop event callback to activate another mainloop event */
static void
activate_event_cb(mainloop_event_t *ev, void *arg)
{
(void)ev;
mainloop_event_t **other_event = arg;
mainloop_event_activate(*other_event);
++activated_counter;
}
static void
test_compat_libevent_postloop_events(void *arg)
{
(void)arg;
mainloop_event_t *a = NULL, *b = NULL;
periodic_timer_t *timed = NULL;
tor_libevent_postfork();
/* If postloop events don't work, then these events will activate one
* another ad infinitum and, and the periodic event will never occur. */
b = mainloop_event_postloop_new(activate_event_cb, &a);
a = mainloop_event_postloop_new(activate_event_cb, &b);
int counter = 0;
struct timeval fifty_ms = { 0, 10 * 1000 };
timed = periodic_timer_new(tor_libevent_get_base(), &fifty_ms,
increment_int_counter_cb, &counter);
mainloop_event_activate(a);
int r;
do {
r = tor_libevent_run_event_loop(tor_libevent_get_base(), 0);
if (r == -1)
break;
} while (counter < 5);
tt_int_op(activated_counter, OP_GE, 2);
done:
mainloop_event_free(a);
mainloop_event_free(b);
periodic_timer_free(timed);
}
struct testcase_t compat_libevent_tests[] = {
{ "logging_callback", test_compat_libevent_logging_callback,
TT_FORK, NULL, NULL },
{ "header_version", test_compat_libevent_header_version, 0, NULL, NULL },
{ "postloop_events", test_compat_libevent_postloop_events,
TT_FORK, NULL, NULL },
END_OF_TESTCASES
};
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