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Add a unit test for event_base_dump_events()
This function uses a C program to generate its output, and then uses a Python program to check it for correctness. On systems without Python, we just make sure that the C program doesn't crash. It's likely that we should be requiring some particular python version. This is an alpha, though: I'm sure somebody will tell us which.
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#!/usr/bin/python | |||
# | |||
# Post-process the output of test-dumpevents and check it for correctness. | |||
# | |||
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import math | |||
import re | |||
import sys | |||
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text = sys.stdin.readlines() | |||
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try: | |||
expect_inserted_pos = text.index("Inserted:\n") | |||
expect_active_pos = text.index("Active:\n") | |||
got_inserted_pos = text.index("Inserted events:\n") | |||
got_active_pos = text.index("Active events:\n") | |||
except ValueError: | |||
print >>sys.stderr, "Missing expected dividing line in dumpevents output" | |||
sys.exit(1) | |||
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if not (expect_inserted_pos < expect_active_pos < | |||
got_inserted_pos < got_active_pos): | |||
print >>sys.stderr, "Sections out of order in dumpevents output" | |||
sys.exit(1) | |||
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now,T= text[1].split() | |||
T = float(T) | |||
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want_inserted = set(text[expect_inserted_pos+1:expect_active_pos]) | |||
want_active = set(text[expect_active_pos+1:got_inserted_pos-1]) | |||
got_inserted = set(text[got_inserted_pos+1:got_active_pos]) | |||
got_active = set(text[got_active_pos+1:]) | |||
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pat = re.compile(r'Timeout=([0-9\.]+)') | |||
def replace_time(m): | |||
t = float(m.group(1)) | |||
if .9 < abs(t-T) < 1.1: | |||
return "Timeout=T+1" | |||
elif 2.4 < abs(t-T) < 2.6: | |||
return "Timeout=T+2.5" | |||
else: | |||
return m.group(0) | |||
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cleaned_inserted = set( pat.sub(replace_time, s) for s in got_inserted | |||
if "Internal" not in s) | |||
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if cleaned_inserted != want_inserted: | |||
print >>sys.stderr, "Inserted event lists were not as expected!" | |||
sys.exit(1) | |||
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if set(got_active) != set(want_active): | |||
print >>sys.stderr, "Active event lists were not as expected!" | |||
sys.exit(1) | |||
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/* | |||
* Copyright (c) 2012 Niels Provos and Nick Mathewson | |||
* | |||
* Redistribution and use in source and binary forms, with or without | |||
* modification, are permitted provided that the following conditions | |||
* are met: | |||
* 1. Redistributions of source code must retain the above copyright | |||
* notice, this list of conditions and the following disclaimer. | |||
* 2. Redistributions in binary form must reproduce the above copyright | |||
* notice, this list of conditions and the following disclaimer in the | |||
* documentation and/or other materials provided with the distribution. | |||
* 3. The name of the author may not be used to endorse or promote products | |||
* derived from this software without specific prior written permission. | |||
* | |||
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR | |||
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES | |||
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. | |||
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, | |||
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT | |||
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, | |||
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY | |||
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | |||
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF | |||
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |||
*/ | |||
#include "event2/event-config.h" | |||
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#ifdef _WIN32 | |||
#include <winsock2.h> | |||
#include <windows.h> | |||
#else | |||
#include <unistd.h> | |||
#endif | |||
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#include <stdio.h> | |||
#include <event2/event.h> | |||
#include "util-internal.h" | |||
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static void | |||
sock_perror(const char *s) | |||
{ | |||
#ifdef _WIN32 | |||
const char *err = evutil_socket_error_to_string(EVUTIL_SOCKET_ERROR()); | |||
fprintf(stderr, "%s: %s\n", s, err); | |||
#else | |||
perror(s); | |||
#endif | |||
} | |||
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static void | |||
callback1(evutil_socket_t fd, short events, void *arg) | |||
{ | |||
} | |||
static void | |||
callback2(evutil_socket_t fd, short events, void *arg) | |||
{ | |||
} | |||
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/* Testing code for event_base_dump_events(). | |||
Notes that just because we have code to exercise this function, | |||
doesn't mean that *ANYTHING* about the output format is guaranteed to | |||
remain in the future. | |||
*/ | |||
int | |||
main(int argc, char **argv) | |||
{ | |||
#define N_EVENTS 13 | |||
int i; | |||
struct event *ev[N_EVENTS]; | |||
evutil_socket_t pair1[2]; | |||
evutil_socket_t pair2[2]; | |||
struct timeval tv_onesec = {1,0}; | |||
struct timeval tv_two5sec = {2,500*1000}; | |||
const struct timeval *tv_onesec_common; | |||
const struct timeval *tv_two5sec_common; | |||
struct event_base *base; | |||
struct timeval now; | |||
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#ifdef _WIN32 | |||
WORD wVersionRequested; | |||
WSADATA wsaData; | |||
int err; | |||
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wVersionRequested = MAKEWORD(2, 2); | |||
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err = WSAStartup(wVersionRequested, &wsaData); | |||
#endif | |||
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#ifdef _WIN32 | |||
#define LOCAL_SOCKETPAIR_AF AF_INET | |||
#else | |||
#define LOCAL_SOCKETPAIR_AF AF_UNIX | |||
#endif | |||
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if (evutil_make_internal_pipe_(pair1) < 0 || | |||
evutil_make_internal_pipe_(pair2) < 0) { | |||
sock_perror("evutil_make_internal_pipe_"); | |||
return 1; | |||
} | |||
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if (!(base = event_base_new())) { | |||
fprintf(stderr,"Couldn't make event_base\n"); | |||
return 2; | |||
} | |||
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tv_onesec_common = event_base_init_common_timeout(base, &tv_onesec); | |||
tv_two5sec_common = event_base_init_common_timeout(base, &tv_two5sec); | |||
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ev[0] = event_new(base, pair1[0], EV_WRITE, callback1, NULL); | |||
ev[1] = event_new(base, pair1[1], EV_READ|EV_PERSIST, callback1, NULL); | |||
ev[2] = event_new(base, pair2[0], EV_WRITE|EV_PERSIST, callback2, NULL); | |||
ev[3] = event_new(base, pair2[1], EV_READ, callback2, NULL); | |||
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/* For timers */ | |||
ev[4] = evtimer_new(base, callback1, NULL); | |||
ev[5] = evtimer_new(base, callback1, NULL); | |||
ev[6] = evtimer_new(base, callback1, NULL); | |||
ev[7] = event_new(base, -1, EV_PERSIST, callback2, NULL); | |||
ev[8] = event_new(base, -1, EV_PERSIST, callback2, NULL); | |||
ev[9] = event_new(base, -1, EV_PERSIST, callback2, NULL); | |||
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/* To activate */ | |||
ev[10] = event_new(base, -1, 0, callback1, NULL); | |||
ev[11] = event_new(base, -1, 0, callback2, NULL); | |||
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/* Signals */ | |||
ev[12] = evsignal_new(base, SIGINT, callback2, NULL); | |||
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event_add(ev[0], NULL); | |||
event_add(ev[1], &tv_onesec); | |||
event_add(ev[2], tv_onesec_common); | |||
event_add(ev[3], tv_two5sec_common); | |||
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event_add(ev[4], tv_onesec_common); | |||
event_add(ev[5], tv_onesec_common); | |||
event_add(ev[6], &tv_onesec); | |||
event_add(ev[7], tv_two5sec_common); | |||
event_add(ev[8], tv_onesec_common); | |||
event_add(ev[9], &tv_two5sec); | |||
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event_active(ev[10], EV_READ, 1); | |||
event_active(ev[11], EV_READ|EV_WRITE|EV_TIMEOUT, 1); | |||
event_active(ev[1], EV_READ, 1); | |||
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event_add(ev[12], NULL); | |||
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evutil_gettimeofday(&now,NULL); | |||
puts("=====expected"); | |||
printf("Now= %ld.%06d\n",(long)now.tv_sec,(int)now.tv_usec); | |||
puts("Inserted:"); | |||
printf(" %p [fd %ld] Write\n",ev[0],(long)pair1[0]); | |||
printf(" %p [fd %ld] Read Persist Timeout=T+1\n",ev[1],(long)pair1[1]); | |||
printf(" %p [fd %ld] Write Persist Timeout=T+1\n",ev[2],(long)pair2[0]); | |||
printf(" %p [fd %ld] Read Timeout=T+2.5\n",ev[3],(long)pair2[1]); | |||
printf(" %p [fd -1] Timeout=T+1\n",ev[4]); | |||
printf(" %p [fd -1] Timeout=T+1\n",ev[5]); | |||
printf(" %p [fd -1] Timeout=T+1\n",ev[6]); | |||
printf(" %p [fd -1] Persist Timeout=T+2.5\n",ev[7]); | |||
printf(" %p [fd -1] Persist Timeout=T+1\n",ev[8]); | |||
printf(" %p [fd -1] Persist Timeout=T+2.5\n",ev[9]); | |||
printf(" %p [sig %d] Signal Persist\n", ev[12], (int)SIGINT); | |||
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puts("Active:"); | |||
printf(" %p [fd -1, priority=0] Read active\n", ev[10]); | |||
printf(" %p [fd -1, priority=0] Read Write Timeout active\n", ev[11]); | |||
printf(" %p [fd %ld, priority=0] Read active\n", ev[1], (long)pair1[1]); | |||
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puts("======received"); | |||
event_base_dump_events(base, stdout); | |||
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for (i = 0; i < N_EVENTS; ++i) { | |||
event_free(ev[i]); | |||
} | |||
event_base_free(base); | |||
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return 0; | |||
} | |||
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