aboutsummaryrefslogtreecommitdiff
path: root/tests/liberty.c
blob: ddff7c3ef1f9f1a0afdac478d35b5a1734449e67 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
/*
 * tests/liberty.c
 *
 * Copyright (c) 2015 - 2016, Přemysl Eric Janouch <p@janouch.name>
 *
 * Permission to use, copy, modify, and/or distribute this software for any
 * purpose with or without fee is hereby granted.
 *
 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
 * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
 * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
 * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 *
 */

#define PROGRAM_NAME "test"
#define PROGRAM_VERSION "0"

#define LIBERTY_WANT_POLLER
#define LIBERTY_WANT_ASYNC

#include "../liberty.c"

// --- Memory ------------------------------------------------------------------

#define KILO 1024
#define MEGA 1048576

static void
test_memory (void)
{
	void *m = xmalloc (MEGA);
	memset (m, 0, MEGA);

	void *n = xcalloc (KILO, KILO);
	soft_assert (!memcmp (n, m, MEGA));

	m = xrealloc (m, 1024);
	n = xreallocarray (n, KILO, 1);
	soft_assert (!memcmp (n, m, KILO));

	free (m);
	free (n);

	char *s = xstrdup ("test");
	char *t = xstrndup ("testing", 4);
	soft_assert (!strcmp (s, t));

	free (s);
	free (t);
}

// --- Linked lists ------------------------------------------------------------

struct my_link
{
	LIST_HEADER (struct my_link)
	int n;
};

static struct my_link *
make_link (int value)
{
	struct my_link *link = xcalloc (1, sizeof *link);
	link->n = value;
	return link;
}

static void
check_linked_list (struct my_link *list, struct my_link **a, int n)
{
	// The linked list must contain items from the array, in that order
	struct my_link *iter = list;
	for (int i = 0; i < n; i++)
	{
		if (!a[i])
			continue;

		hard_assert (iter != NULL);
		soft_assert (iter->n == i);
		iter = iter->next;
	}

	// And nothing more
	soft_assert (iter == NULL);
}

static void
test_list (void)
{
	struct my_link *list = NULL;
	struct my_link *a[10];

	// Prepare a linked list
	for (int i = N_ELEMENTS (a); i--; )
	{
		a[i] = make_link (i);
		LIST_PREPEND (list, a[i]);
	}

	// Remove a few entries
	LIST_UNLINK (list, a[0]); free (a[0]); a[0] = NULL;
	LIST_UNLINK (list, a[3]); free (a[3]); a[3] = NULL;
	LIST_UNLINK (list, a[4]); free (a[4]); a[4] = NULL;
	LIST_UNLINK (list, a[6]); free (a[6]); a[6] = NULL;

	// Prepend one more item
	a[0] = make_link (0);
	LIST_PREPEND (list, a[0]);

	// Check the contents
	check_linked_list (list, a, N_ELEMENTS (a));

	// Destroy the linked list
	LIST_FOR_EACH (struct my_link, iter, list)
		free (iter);
}

static void
test_list_with_tail (void)
{
	struct my_link *list = NULL;
	struct my_link *tail = NULL;
	struct my_link *a[10];

	// Prepare a linked list
	for (int i = 0; i < (int) N_ELEMENTS (a); i++)
	{
		a[i] = make_link (i);
		LIST_APPEND_WITH_TAIL (list, tail, a[i]);
	}

	// Remove a few entries
	LIST_UNLINK_WITH_TAIL (list, tail, a[0]); free (a[0]); a[0] = NULL;
	LIST_UNLINK_WITH_TAIL (list, tail, a[3]); free (a[3]); a[3] = NULL;
	LIST_UNLINK_WITH_TAIL (list, tail, a[4]); free (a[4]); a[4] = NULL;
	LIST_UNLINK_WITH_TAIL (list, tail, a[6]); free (a[6]); a[6] = NULL;
	LIST_UNLINK_WITH_TAIL (list, tail, a[9]); free (a[9]); a[9] = NULL;

	// Append one more item
	a[9] = make_link (9);
	LIST_APPEND_WITH_TAIL (list, tail, a[9]);

	// Check the contents
	check_linked_list (list, a, N_ELEMENTS (a));

	// Destroy the linked list
	LIST_FOR_EACH (struct my_link, iter, list)
		free (iter);
}

// --- Strings -----------------------------------------------------------------

static void
test_strv (void)
{
	struct strv v = strv_make ();
	strv_append_owned (&v, xstrdup ("xkcd"));
	strv_reset (&v);

	const char *a[] =
		{ "123", "456", "a", "bc", "def", "ghij", "klmno", "pqrstu" };

	// Add the first two items via another vector
	struct strv w = strv_make ();
	strv_append_args (&w, a[0], a[1], NULL);
	strv_append_vector (&v, w.vector);
	strv_free (&w);

	// Add an item and delete it right after
	strv_append (&v, "test");
	strv_remove (&v, v.len - 1);

	// Add the rest of the list properly
	for (int i = 2; i < (int) N_ELEMENTS (a); i++)
		strv_append (&v, a[i]);

	// Check the contents
	soft_assert (v.len == N_ELEMENTS (a));
	for (int i = 0; i < (int) N_ELEMENTS (a); i++)
		soft_assert (!strcmp (v.vector[i], a[i]));
	soft_assert (v.vector[v.len] == NULL);

	strv_free (&v);
}

static void
test_str (void)
{
	uint8_t x[] = { 0x12, 0x34, 0x56, 0x78, 0x11, 0x22, 0x33, 0x44 };

	struct str s = str_make ();
	str_reserve (&s, MEGA);
	str_append_data (&s, x, sizeof x);
	str_remove_slice (&s, 4, 4);
	soft_assert (s.len == 4);

	struct str t = str_make ();
	str_append_str (&t, &s);
	str_append (&t, "abc");
	str_append_c (&t, 'd');
	str_append_printf (&t, "efg");

	char *y = str_steal (&t);
	soft_assert (!strcmp (y, "\x12\x34\x56\x78" "abcdefg"));
	free (y);

	str_reset (&s);
	str_free (&s);
}

// --- Errors ------------------------------------------------------------------

static void
test_error (void)
{
	const char *m = "something fucked up";

	struct error *e = NULL;
	error_set (&e, "%s", m);

	struct error *f = NULL;
	error_propagate (&f, e);

	soft_assert (f != NULL);
	soft_assert (!strcmp (f->message, m));
	error_free (f);
}

// --- Hash map ----------------------------------------------------------------

static void
free_counter (void *data)
{
	int *counter = data;
	if (!--*counter)
		free (data);
}

static int *
make_counter (void)
{
	int *counter = xmalloc (sizeof *counter);
	*counter = 1;
	return counter;
}

static int *
ref_counter (int *counter)
{
	(*counter)++;
	return counter;
}

static void
test_str_map (void)
{
	// Put two reference counted objects in the map under case-insensitive keys
	struct str_map m = str_map_make (free_counter);
	m.key_xfrm = tolower_ascii_strxfrm;

	int *a = make_counter ();
	int *b = make_counter ();

	str_map_set (&m, "abc", ref_counter (a));
	soft_assert (str_map_find (&m, "ABC") == a);
	soft_assert (!str_map_find (&m, "DEFghi"));

	str_map_set (&m, "defghi", ref_counter (b));
	soft_assert (str_map_find (&m, "ABC") == a);
	soft_assert (str_map_find (&m, "DEFghi") == b);

	// Check that we can iterate over both of them
	struct str_map_iter iter = str_map_iter_make (&m);

	bool met_a = false;
	bool met_b = false;
	void *iter_data;
	while ((iter_data = str_map_iter_next (&iter)))
	{
		if (iter_data == a) { soft_assert (!met_a); met_a = true; }
		if (iter_data == b) { soft_assert (!met_b); met_b = true; }
		soft_assert (met_a || met_b);
	}
	soft_assert (met_a && met_b);

	// Remove one of the keys
	str_map_set (&m, "abc", NULL);
	soft_assert (!str_map_find (&m, "ABC"));
	soft_assert (str_map_find (&m, "DEFghi") == b);

	str_map_free (&m);

	// Check that the objects have been destroyed exactly once
	soft_assert (*a == 1);
	soft_assert (*b == 1);
	free_counter (a);
	free_counter (b);

	// Iterator test with a high number of items
	m = str_map_make (free);

	for (size_t i = 0; i < 100 * 100; i++)
	{
		char *x = xstrdup_printf ("%zu", i);
		str_map_set (&m, x, x);
	}

	struct str_map_unset_iter unset_iter = str_map_unset_iter_make (&m);
	while ((str_map_unset_iter_next (&unset_iter)))
	{
		unsigned long x;
		hard_assert (xstrtoul (&x, unset_iter.link->key, 10));
		if (x >= 100)
			str_map_set (&m, unset_iter.link->key, NULL);
	}
	str_map_unset_iter_free (&unset_iter);

	soft_assert (m.len == 100);
	str_map_free (&m);
}

static void
test_utf8 (void)
{
	const char valid  [] = "2H₂ + O₂ ⇌ 2H₂O, R = 4.7 kΩ, ⌀ 200 mm";
	const char invalid[] = "\xf0\x90\x28\xbc";
	soft_assert ( utf8_validate (valid,   sizeof valid));
	soft_assert (!utf8_validate (invalid, sizeof invalid));

	struct utf8_iter iter = utf8_iter_make ("fóọ");
	size_t ch_len;
	hard_assert (utf8_iter_next (&iter, &ch_len) == 'f'    && ch_len == 1);
	hard_assert (utf8_iter_next (&iter, &ch_len) == 0x00F3 && ch_len == 2);
	hard_assert (utf8_iter_next (&iter, &ch_len) == 0x1ECD && ch_len == 3);
}

static void
test_base64 (void)
{
	char data[65];
	for (size_t i = 0; i < N_ELEMENTS (data); i++)
		data[i] = i;

	struct str encoded = str_make ();
	struct str decoded = str_make ();

	base64_encode (data, sizeof data, &encoded);
	soft_assert (base64_decode (encoded.str, false, &decoded));
	soft_assert (decoded.len == sizeof data);
	soft_assert (!memcmp (decoded.str, data, sizeof data));

	str_free (&encoded);
	str_free (&decoded);
}

// --- Asynchronous jobs -------------------------------------------------------

struct test_async_data
{
	struct async_manager manager;       ///< Async manager
	struct async_getaddrinfo *gai;      ///< Address resolution job
	struct async_getnameinfo *gni;      ///< Name resolution job

	struct async busyloop;              ///< Busy job for cancellation
	bool finished;                      ///< End of test indicator
};

static void
on_getnameinfo (int err, char *host, char *service, void *user_data)
{
	(void) host;
	(void) service;

	hard_assert (!err);
	struct test_async_data *data = user_data;
	data->gni = NULL;

	async_cancel (&data->busyloop);
}

static void
on_getaddrinfo (int err, struct addrinfo *results, void *user_data)
{
	hard_assert (!err);
	struct test_async_data *data = user_data;
	data->gai = NULL;

	data->gni = async_getnameinfo
		(&data->manager, results->ai_addr, results->ai_addrlen, 0);
	data->gni->dispatcher = on_getnameinfo;
	data->gni->user_data = data;

	freeaddrinfo (results);
}

static void
on_busyloop_execute (struct async *async)
{
	(void) async;

	while (true)
		sleep (1);
}

static void
on_busyloop_destroy (struct async *async)
{
	CONTAINER_OF (async, struct test_async_data, busyloop)->finished = true;
}

static void
test_async (void)
{
	struct test_async_data data;
	memset (&data, 0, sizeof data);
	data.manager = async_manager_make ();

	data.busyloop = async_make (&data.manager);
	data.busyloop.execute = on_busyloop_execute;
	data.busyloop.destroy = on_busyloop_destroy;
	async_run (&data.busyloop);

	struct addrinfo hints;
	memset (&hints, 0, sizeof hints);
	hints.ai_socktype = SOCK_STREAM;

	// Localhost should be network-independent and instantaneous
	data.gai = async_getaddrinfo (&data.manager, "127.0.0.1", "22", &hints);
	data.gai->dispatcher = on_getaddrinfo;
	data.gai->user_data = &data;

	struct pollfd pfd =
		{ .events = POLLIN, .fd = data.manager.finished_pipe[0] };

	// Eventually the busyloop should get cancelled and stop the loop
	while (!data.finished)
	{
		hard_assert (poll (&pfd, 1, 1000) == 1);
		async_manager_dispatch (&data.manager);
	}

	soft_assert (!data.gai);
	soft_assert (!data.gni);
	async_manager_free (&data.manager);
}

// --- Connector ---------------------------------------------------------------

// This also happens to test a large part of the poller implementation

#include <arpa/inet.h>

struct test_connector_fixture
{
	const char *host;                   ///< The host we're listening on
	int port;                           ///< The port we're listening on

	int listening_fd;                   ///< Listening FD

	struct poller poller;               ///< Poller
	struct poller_fd listening_event;   ///< Listening event
	bool quitting;                      ///< Quit signal for the event loop
};

static void
test_connector_on_client (const struct pollfd *pfd, void *user_data)
{
	(void) user_data;

	int fd = accept (pfd->fd, NULL, NULL);
	if (fd == -1)
	{
		if (errno == EAGAIN
		 || errno == EINTR
		 || errno == ECONNABORTED)
			return;

		exit_fatal ("%s: %s", "accept", strerror (errno));
	}

	const char message[] = "Hello!\n";
	(void) write (fd, message, strlen (message));
	xclose (fd);
}

static bool
test_connector_try_bind
	(struct test_connector_fixture *self, const char *host, int port)
{
	struct sockaddr_in sin;
	sin.sin_family = AF_INET;
	sin.sin_port = htons ((self->port = port));
	sin.sin_addr.s_addr = inet_addr ((self->host = host));

	int fd = socket (AF_INET, SOCK_STREAM, 0);
	if (fd < 0)
		return true;

	int yes = 1;
	(void) setsockopt (fd, SOL_SOCKET, SO_REUSEADDR, &yes, sizeof yes);

	if (bind (fd, (struct sockaddr *) &sin, sizeof sin)
	 || listen (fd, 10))
	{
		xclose (fd);
		return false;
	}

	self->listening_fd = fd;
	return true;
}

static void
test_connector_fixture_init
	(const void *user_data, struct test_connector_fixture *self)
{
	(void) user_data;

	// Find a free port on localhost in the user range and bind to it
	for (int i = 0; i < 1024; i++)
		if (test_connector_try_bind (self, "127.0.0.1", 1024 + i))
			break;
	if (!self->listening_fd)
		exit_fatal ("cannot bind to localhost");

	// Make it so that we immediately accept all connections
	poller_init (&self->poller);
	self->listening_event = poller_fd_make (&self->poller, self->listening_fd);
	self->listening_event.dispatcher = test_connector_on_client;
	self->listening_event.user_data = (poller_fd_fn) self;
	poller_fd_set (&self->listening_event, POLLIN);
}

static void
test_connector_fixture_free
	(const void *user_data, struct test_connector_fixture *self)
{
	(void) user_data;

	poller_free (&self->poller);
	xclose (self->listening_fd);
}

// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

static void
test_connector_on_connected (void *user_data, int socket, const char *hostname)
{
	struct test_connector_fixture *self = user_data;
	hard_assert (!strcmp (hostname, self->host));
	xclose (socket);

	self->quitting = true;
}

static void
test_connector_on_failure (void *user_data)
{
	(void) user_data;
	exit_fatal ("failed to connect to the prepared port");
}

static void
test_connector_on_connecting (void *user_data, const char *address)
{
	(void) user_data;
	print_debug ("connecting to %s", address);
}

static void
test_connector_on_error (void *user_data, const char *error)
{
	(void) user_data;
	print_debug ("%s: %s", "connecting failed", error);
}

static void
test_connector (const void *user_data, struct test_connector_fixture *self)
{
	(void) user_data;
	print_debug ("final target is %s:%d", self->host, self->port);

	struct connector connector;
	connector_init (&connector, &self->poller);
	connector.on_connecting = test_connector_on_connecting;
	connector.on_error      = test_connector_on_error;
	connector.on_connected  = test_connector_on_connected;
	connector.on_failure    = test_connector_on_failure;
	connector.user_data     = self;

	connector_add_target (&connector, ":D", "nonsense");

	char *port = xstrdup_printf ("%d", self->port);
	connector_add_target (&connector, self->host, port);
	free (port);

	while (!self->quitting)
		poller_run (&self->poller);

	connector_free (&connector);
}

// --- Main --------------------------------------------------------------------

int
main (int argc, char *argv[])
{
	struct test test;
	test_init (&test, argc, argv);

	test_add_simple (&test, "/memory",         NULL, test_memory);
	test_add_simple (&test, "/list",           NULL, test_list);
	test_add_simple (&test, "/list-with-tail", NULL, test_list_with_tail);
	test_add_simple (&test, "/strv",           NULL, test_strv);
	test_add_simple (&test, "/str",            NULL, test_str);
	test_add_simple (&test, "/error",          NULL, test_error);
	test_add_simple (&test, "/str-map",        NULL, test_str_map);
	test_add_simple (&test, "/utf-8",          NULL, test_utf8);
	test_add_simple (&test, "/base64",         NULL, test_base64);
	test_add_simple (&test, "/async",          NULL, test_async);

	test_add (&test, "/connector", struct test_connector_fixture, NULL,
		test_connector_fixture_init,
		test_connector,
		test_connector_fixture_free);

	// TODO: write tests for the rest of the library

	return test_run (&test);
}