t/utils/strbuf_test.c

   1 /*
   2  * SysDB - t/utils/strbuf_test.c
   3  * Copyright (C) 2013 Sebastian 'tokkee' Harl <sh@tokkee.org>
   4  * All rights reserved.
   5  *
   6  * Redistribution and use in source and binary forms, with or without
   7  * modification, are permitted provided that the following conditions
   8  * are met:
   9  * 1. Redistributions of source code must retain the above copyright
  10  *    notice, this list of conditions and the following disclaimer.
  11  * 2. Redistributions in binary form must reproduce the above copyright
  12  *    notice, this list of conditions and the following disclaimer in the
  13  *    documentation and/or other materials provided with the distribution.
  14  *
  15  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  16  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
  17  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  18  * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR
  19  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
  20  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
  21  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
  22  * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
  23  * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
  24  * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
  25  * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  26  */
  27
  28 #include "utils/strbuf.h"
  29 #include "libsysdb_test.h"
  30
  31 #include <check.h>
  32
  33 /*
  34  * private data types
  35  */
  36
  37 static sdb_strbuf_t *buf;
  38
  39 static void
  40 setup(void)
  41 {
  42         buf = sdb_strbuf_create(0);
  43         fail_unless(buf != NULL,
  44                         "sdb_strbuf_create() = NULL; expected strbuf object");
  45 } /* setup */
  46
  47 static void
  48 teardown(void)
  49 {
  50         sdb_strbuf_destroy(buf);
  51         buf = NULL;
  52 } /* teardown */
  53
  54 /*
  55  * tests
  56  */
  57
  58 START_TEST(test_empty)
  59 {
  60         sdb_strbuf_t *b = NULL;
  61         va_list ap;
  62
  63         /* check that methods don't crash */
  64         sdb_strbuf_destroy(b);
  65         sdb_strbuf_skip(b, 0);
  66         sdb_strbuf_skip(b, 10);
  67
  68         /* check that methods return an error */
  69         fail_unless(sdb_strbuf_vappend(b, "test", ap) < 0,
  70                         "sdb_strbuf_vappend(NULL) didn't report failure");
  71         fail_unless(sdb_strbuf_append(b, "test") < 0,
  72                         "sdb_strbuf_append(NULL) didn't report failure");
  73         fail_unless(sdb_strbuf_vsprintf(b, "test", ap) < 0,
  74                         "sdb_strbuf_vsprintf(NULL) didn't report failure");
  75         fail_unless(sdb_strbuf_sprintf(b, "test") < 0,
  76                         "sdb_strbuf_sprintf(NULL) didn't report failure");
  77         fail_unless(sdb_strbuf_memcpy(b, "test", 4) < 0,
  78                         "sdb_strbuf_memcpy(NULL) didn't report failure");
  79         fail_unless(sdb_strbuf_memappend(b, "test", 4) < 0,
  80                         "sdb_strbuf_memappend(NULL) didn't report failure");
  81         fail_unless(sdb_strbuf_read(b, 0, 32) < 0,
  82                         "sdb_strbuf_read(NULL) didn't report failure");
  83         fail_unless(sdb_strbuf_chomp(b) < 0,
  84                         "sdb_strbuf_chomp(NULL) didn't report failure");
  85 }
  86 END_TEST
  87
  88 START_TEST(test_sdb_strbuf_create)
  89 {
  90         sdb_strbuf_t *s;
  91         size_t len;
  92
  93         s = sdb_strbuf_create(0);
  94         fail_unless(s != NULL,
  95                         "sdb_strbuf_create() = NULL; expected strbuf object");
  96         len = sdb_strbuf_len(s);
  97         fail_unless(len == 0,
  98                         "sdb_strbuf_create() created buffer with len = %zu; "
  99                         "expected: 0", len);
 100         sdb_strbuf_destroy(s);
 101
 102         s = sdb_strbuf_create(128);
 103         fail_unless(s != NULL,
 104                         "sdb_strbuf_create() = NULL; expected strbuf object");
 105         len = sdb_strbuf_len(s);
 106         /* len still has to be 0 -- there's no content */
 107         fail_unless(len == 0,
 108                         "sdb_strbuf_create() created buffer with len = %zu; "
 109                         "expected: 0", len);
 110         sdb_strbuf_destroy(s);
 111 }
 112 END_TEST
 113
 114 START_TEST(test_sdb_strbuf_append)
 115 {
 116         ssize_t n, expected;
 117         size_t len;
 118         const char *test;
 119
 120         n = sdb_strbuf_append(buf, "1234567890");
 121         fail_unless(n == 10,
 122                         "sdb_strbuf_append() appended %zi bytes; expected: 10", n);
 123         len = sdb_strbuf_len(buf);
 124         fail_unless(len == 10,
 125                         "sdb_strbuf_append() left behind buffer with len = %zu; "
 126                         "expected: 10", len);
 127
 128         n = sdb_strbuf_append(buf, "ABCDE");
 129         fail_unless(n == 5,
 130                         "sdb_strbuf_append() appended %zi bytes; expected: 5", n);
 131         len = sdb_strbuf_len(buf);
 132         fail_unless(len == 15,
 133                         "sdb_strbuf_append() left behind buffer with len = %zu; "
 134                         "expected: 15", len);
 135
 136         test = sdb_strbuf_string(buf);
 137         fail_unless(test[len] == '\0',
 138                         "sdb_strbuf_append() did not nil-terminate the string");
 139         fail_unless(!strcmp(test, "1234567890ABCDE"),
 140                         "sdb_strbuf_append() did not correctly concatenate two string; "
 141                         "got: %s; expected: 1234567890ABCDE", test);
 142
 143         n = sdb_strbuf_append(buf, "%zu; %5.4f", len, (double)len / 10.0);
 144         expected = /* len */ 2 + /* "; " */ 2 + /* decimal len/10 */ 6;
 145         fail_unless(n == expected,
 146                         "sdb_strbuf_append() appended %zi bytes; expected: %zi",
 147                         n, expected);
 148         len = sdb_strbuf_len(buf);
 149         fail_unless(len == 15 + (size_t)expected,
 150                         "sdb_strbuf_append() left behind buffer with len = %zu; "
 151                         "expected: %zu", len, 15 + (size_t)expected);
 152
 153         test = sdb_strbuf_string(buf);
 154         fail_unless(test[len] == '\0',
 155                         "sdb_strbuf_append() did not nil-terminate the string");
 156         fail_unless(!strcmp(test, "1234567890ABCDE15; 1.5000"),
 157                         "sdb_strbuf_append() did not correctly concatenate two string; "
 158                         "got: %s; expected: 1234567890ABCDE15; 1.5000", test);
 159 }
 160 END_TEST
 161
 162 START_TEST(test_sdb_strbuf_sprintf)
 163 {
 164         ssize_t n, expected;
 165         size_t len;
 166         const char *test;
 167
 168         n = sdb_strbuf_sprintf(buf, "1234567890");
 169         fail_unless(n == 10,
 170                         "sdb_strbuf_sprintf() wrote %zi bytes; expected: 10", n);
 171         len = sdb_strbuf_len(buf);
 172         fail_unless(len == 10,
 173                         "sdb_strbuf_sprintf() left behind buffer with len = %zu; "
 174                         "expected: 10", len);
 175
 176         n = sdb_strbuf_sprintf(buf, "ABCDE");
 177         fail_unless(n == 5,
 178                         "sdb_strbuf_sprintf() wrote %zi bytes; expected: 5", n);
 179         len = sdb_strbuf_len(buf);
 180         fail_unless(len == 5,
 181                         "sdb_strbuf_sprintf() left behind buffer with len = %zu; "
 182                         "expected: 5", len);
 183
 184         test = sdb_strbuf_string(buf);
 185         fail_unless(test[len] == '\0',
 186                         "sdb_strbuf_sprintf() did not nil-terminate the string");
 187         fail_unless(!strcmp(test, "ABCDE"),
 188                         "sdb_strbuf_sprintf() did not format string correctly; "
 189                         "got: %s; expected: ABCDE", test);
 190
 191         n = sdb_strbuf_sprintf(buf, "%zu; %5.4f", len, (double)len / 10.0);
 192         expected = /* len */ 1 + /* "; " */ 2 + /* decimal len/10 */ 6;
 193         fail_unless(n == expected,
 194                         "sdb_strbuf_sprintf() wrote %zi bytes; expected: %zi",
 195                         n, expected);
 196         len = sdb_strbuf_len(buf);
 197         fail_unless(len == (size_t)expected,
 198                         "sdb_strbuf_sprintf() left behind buffer with len = %zu; "
 199                         "expected: %zu", len, (size_t)expected);
 200
 201         test = sdb_strbuf_string(buf);
 202         fail_unless(test[len] == '\0',
 203                         "sdb_strbuf_sprintf() did not nil-terminate the string");
 204         fail_unless(!strcmp(test, "5; 0.5000"),
 205                         "sdb_strbuf_sprintf() did not format string correctly; "
 206                         "got: %s; expected: 5; 0.5000", test);
 207 }
 208 END_TEST
 209
 210 START_TEST(test_incremental)
 211 {
 212         ssize_t n;
 213         size_t i;
 214
 215         sdb_strbuf_destroy(buf);
 216         buf = sdb_strbuf_create(1024);
 217
 218         /* fill buffer one by one; leave room for nul-byte */
 219         for (i = 0; i < 1023; ++i) {
 220                 n = sdb_strbuf_append(buf, ".");
 221                 fail_unless(n == 1, "sdb_strbuf_append() = %zi; expected: 1", n);
 222         }
 223
 224         /* write another byte; this has to trigger a resize */
 225         n = sdb_strbuf_append(buf, ".");
 226         fail_unless(n == 1, "sdb_strbuf_append() = %zi; expected: 1", n);
 227
 228         n = (ssize_t)sdb_strbuf_len(buf);
 229         fail_unless(n == 1024, "sdb_strbuf_len() = %zi; expectd: 1024", n);
 230 }
 231 END_TEST
 232
 233 static struct {
 234         const char *input;
 235         size_t size;
 236 } mem_golden_data[] = {
 237         { "abc\0\x10\x42", 6 },
 238         { "\0\1\2\3\4", 5 },
 239         { "\n\n\0\n\n", 5 },
 240         { "", 0 },
 241 };
 242
 243 START_TEST(test_sdb_strbuf_memcpy)
 244 {
 245         size_t i;
 246
 247         for (i = 0; i < SDB_STATIC_ARRAY_LEN(mem_golden_data); ++i) {
 248                 ssize_t n;
 249                 const char *check;
 250
 251                 n = sdb_strbuf_memcpy(buf, mem_golden_data[i].input,
 252                                 mem_golden_data[i].size);
 253                 fail_unless(n >= 0,
 254                                 "sdb_strbuf_memcpy() = %zi; expected: >=0", n);
 255                 fail_unless((size_t)n == mem_golden_data[i].size,
 256                                 "sdb_strbuf_memcpy() = %zi; expected: %zu",
 257                                 n, mem_golden_data[i].size);
 258
 259                 n = (ssize_t)sdb_strbuf_len(buf);
 260                 fail_unless((size_t)n == mem_golden_data[i].size,
 261                                 "sdb_strbuf_len() = %zu (after memcpy); expected: %zu",
 262                                 n, mem_golden_data[i].size);
 263
 264                 check = sdb_strbuf_string(buf);
 265                 fail_unless(check != NULL,
 266                                 "sdb_strbuf_string() = NULL (after memcpy); expected: data");
 267                 fail_unless(check[mem_golden_data[i].size] == '\0',
 268                                 "sdb_strbuf_memcpy() did not nil-terminate the data");
 269                 fail_unless(!memcmp(check, mem_golden_data[i].input,
 270                                         mem_golden_data[i].size),
 271                                 "sdb_strbuf_memcpy() did not set the buffer correctly");
 272         }
 273 }
 274 END_TEST
 275
 276 START_TEST(test_sdb_strbuf_memappend)
 277 {
 278         size_t i;
 279
 280         for (i = 0; i < SDB_STATIC_ARRAY_LEN(mem_golden_data); ++i) {
 281                 ssize_t n;
 282                 const char *check;
 283
 284                 size_t total, j;
 285
 286                 n = sdb_strbuf_memappend(buf, mem_golden_data[i].input,
 287                                 mem_golden_data[i].size);
 288                 fail_unless(n >= 0,
 289                                 "sdb_strbuf_memappend() = %zi; expected: >=0", n);
 290                 fail_unless((size_t)n == mem_golden_data[i].size,
 291                                 "sdb_strbuf_memappend() = %zi; expected: %zu",
 292                                 n, mem_golden_data[i].size);
 293
 294                 check = sdb_strbuf_string(buf);
 295                 fail_unless(check != NULL,
 296                                 "sdb_strbuf_string() = NULL (after memappend); "
 297                                 "expected: data");
 298
 299                 n = (ssize_t)sdb_strbuf_len(buf);
 300                 total = 0;
 301                 for (j = 0; j <= i; ++j) {
 302                         fail_unless(total + mem_golden_data[j].size <= (size_t)n,
 303                                         "sdb_strbuf_len() = %zu (after memappend); "
 304                                         "expected: >=%zu", n, total + mem_golden_data[j].size);
 305
 306                         fail_unless(!memcmp(check + total, mem_golden_data[j].input,
 307                                                 mem_golden_data[j].size),
 308                                         "sdb_strbuf_memappend() did not "
 309                                         "set the buffer correctly");
 310                         total += mem_golden_data[j].size;
 311                 }
 312                 fail_unless((size_t)n == total,
 313                                 "sdb_strbuf_len() = %zu (after memappend); expected: %zu",
 314                                 n, total);
 315
 316                 fail_unless(check[total] == '\0',
 317                                 "sdb_strbuf_memappend() did not nil-terminate the data");
 318         }
 319 }
 320 END_TEST
 321
 322 static struct {
 323         const char *input;
 324         ssize_t expected;
 325         const char *expected_string;
 326 } chomp_golden_data[] = {
 327         { NULL, 0, "" },
 328         { "\n", 1, "" },
 329         { "\n\n", 2, "" },
 330         { "12345\n\n\n", 3, "12345" },
 331         { "abcd", 0, "abcd" },
 332 };
 333
 334 START_TEST(test_sdb_strbuf_chomp)
 335 {
 336         size_t i;
 337
 338         for (i = 0; i < SDB_STATIC_ARRAY_LEN(chomp_golden_data); ++i) {
 339                 ssize_t n;
 340                 const char *check;
 341
 342                 if (chomp_golden_data[i].input)
 343                         sdb_strbuf_sprintf(buf, chomp_golden_data[i].input);
 344
 345                 /* empty buffer */
 346                 n = sdb_strbuf_chomp(buf);
 347                 fail_unless(n == chomp_golden_data[i].expected,
 348                                 "sdb_strbuf_chomp() = %zi; expected: %zi", n,
 349                                 chomp_golden_data[i].expected);
 350
 351                 check = sdb_strbuf_string(buf);
 352                 fail_unless(!strcmp(check, chomp_golden_data[i].expected_string),
 353                                 "sdb_strbuf_chomp() did not correctly remove newlines; "
 354                                 "got string '%s'; expected: '%s'", check,
 355                                 chomp_golden_data[i].expected_string);
 356         }
 357 }
 358 END_TEST
 359
 360 /* input is "1234567890" */
 361 static struct {
 362         size_t n;
 363         const char *expected;
 364         size_t expected_len;
 365 } skip_golden_data[] = {
 366         { 0, "1234567890", 10 },
 367         { 1, "234567890", 9 },
 368         { 2, "34567890", 8 },
 369         { 9, "0", 1 },
 370         { 10, "", 0 },
 371         { 11, "", 0 },
 372         { 100, "", 0 },
 373 };
 374
 375 START_TEST(test_sdb_strbuf_skip)
 376 {
 377         const char *input = "1234567890";
 378         size_t i;
 379
 380         for (i = 0; i < SDB_STATIC_ARRAY_LEN(skip_golden_data); ++i) {
 381                 const char *check;
 382                 size_t n;
 383
 384                 sdb_strbuf_sprintf(buf, input);
 385                 sdb_strbuf_skip(buf, skip_golden_data[i].n);
 386
 387                 n = sdb_strbuf_len(buf);
 388                 fail_unless(n == skip_golden_data[i].expected_len,
 389                                 "sdb_strbuf_len() = %zu (after skip); expected: %zu",
 390                                 n, skip_golden_data[i].expected_len);
 391
 392                 check = sdb_strbuf_string(buf);
 393                 fail_unless(!!check,
 394                                 "sdb_strbuf_string() = NULL (after skip); expected: string");
 395
 396                 fail_unless(check[n] == '\0',
 397                                 "sdb_strbuf_skip() did not nil-terminate the string");
 398
 399                 fail_unless(! strcmp(skip_golden_data[i].expected, check),
 400                                 "sdb_strbuf_skip('%s', %zu) did not skip correctly; "
 401                                 "got string '%s'; expected: '%s'", input,
 402                                 skip_golden_data[i].n, check, skip_golden_data[i].expected);
 403         }
 404 }
 405 END_TEST
 406
 407 static struct {
 408         const char *input;
 409         const char *expected;
 410 } string_golden_data[] = {
 411         { NULL, "" },
 412         { "a", "a" },
 413         { "abcdef", "abcdef" },
 414 };
 415
 416 START_TEST(test_sdb_strbuf_string)
 417 {
 418         size_t i;
 419
 420         for (i = 0; i < SDB_STATIC_ARRAY_LEN(string_golden_data); ++i) {
 421                 const char *check;
 422
 423                 if (string_golden_data[i].input)
 424                         sdb_strbuf_sprintf(buf, string_golden_data[i].input);
 425                 check = sdb_strbuf_string(buf);
 426                 fail_unless(!strcmp(check, string_golden_data[i].expected),
 427                                 "sdb_strbuf_string() = '%s'; expected: '%s'",
 428                                 check, string_golden_data[i].expected);
 429         }
 430 }
 431 END_TEST
 432
 433 static struct {
 434         const char *input;
 435         size_t expected;
 436 } len_golden_data[] = {
 437         { NULL, 0 },
 438         { "a", 1 },
 439         { "12345", 5 },
 440 };
 441
 442 START_TEST(test_sdb_strbuf_len)
 443 {
 444         size_t i;
 445
 446         for (i = 0; i < SDB_STATIC_ARRAY_LEN(len_golden_data); ++i) {
 447                 size_t check;
 448
 449                 if (len_golden_data[i].input)
 450                         sdb_strbuf_sprintf(buf, len_golden_data[i].input);
 451                 check = sdb_strbuf_len(buf);
 452                 fail_unless(check == len_golden_data[i].expected,
 453                                 "sdb_strbuf_len() = %zu; expected: %zu",
 454                                 check, len_golden_data[i].expected);
 455         }
 456 }
 457 END_TEST
 458
 459 Suite *
 460 util_strbuf_suite(void)
 461 {
 462         Suite *s = suite_create("utils::strbuf");
 463         TCase *tc;
 464
 465         tc = tcase_create("empty");
 466         tcase_add_test(tc, test_empty);
 467         suite_add_tcase(s, tc);
 468
 469         tc = tcase_create("core");
 470         tcase_add_checked_fixture(tc, setup, teardown);
 471         tcase_add_test(tc, test_sdb_strbuf_create);
 472         tcase_add_test(tc, test_sdb_strbuf_append);
 473         tcase_add_test(tc, test_sdb_strbuf_sprintf);
 474         tcase_add_test(tc, test_incremental);
 475         tcase_add_test(tc, test_sdb_strbuf_memcpy);
 476         tcase_add_test(tc, test_sdb_strbuf_memappend);
 477         tcase_add_test(tc, test_sdb_strbuf_chomp);
 478         tcase_add_test(tc, test_sdb_strbuf_skip);
 479         tcase_add_test(tc, test_sdb_strbuf_string);
 480         tcase_add_test(tc, test_sdb_strbuf_len);
 481         suite_add_tcase(s, tc);
 482
 483         return s;
 484 } /* util_strbuf_suite */
 485
 486 /* vim: set tw=78 sw=4 ts=4 noexpandtab : */
 487