2 * Copyright (c) 2014 Spectra Logic Corporation
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions, and the following disclaimer,
10 * without modification.
11 * 2. Redistributions in binary form must reproduce at minimum a disclaimer
12 * substantially similar to the "NO WARRANTY" disclaimer below
13 * ("Disclaimer") and any redistribution must be conditioned upon
14 * including a substantially similar Disclaimer requirement for further
15 * binary redistribution.
18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
19 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
20 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
21 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
22 * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
23 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
24 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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32 #include <sys/param.h>
34 #include <bitstring.h>
39 typedef void (testfunc_t)(bitstr_t *bstr, int nbits, const char *memloc);
42 bitstring_run_stack_test(testfunc_t *test, int nbits)
44 bitstr_t bit_decl(bitstr, nbits);
46 test(bitstr, nbits, "stack");
50 bitstring_run_heap_test(testfunc_t *test, int nbits)
52 bitstr_t *bitstr = bit_alloc(nbits);
54 test(bitstr, nbits, "heap");
58 bitstring_test_runner(testfunc_t *test)
60 const int bitstr_sizes[] = {
72 for (unsigned long i = 0; i < nitems(bitstr_sizes); i++) {
73 bitstring_run_stack_test(test, bitstr_sizes[i]);
74 bitstring_run_heap_test(test, bitstr_sizes[i]);
78 #define BITSTRING_TC_DEFINE(name) \
79 ATF_TC_WITHOUT_HEAD(name); \
80 static testfunc_t name ## _test; \
82 ATF_TC_BODY(name, tc) \
84 bitstring_test_runner(name ## _test); \
88 name ## _test(bitstr_t *bitstr, int nbits, const char *memloc)
90 #define BITSTRING_TC_ADD(tp, name) \
92 ATF_TP_ADD_TC(tp, name); \
95 ATF_TC_WITHOUT_HEAD(bitstr_in_struct);
96 ATF_TC_BODY(bitstr_in_struct, tc)
98 struct bitstr_containing_struct {
99 bitstr_t bit_decl(bitstr, 8);
102 bit_nclear(test_struct.bitstr, 0, 8);
105 ATF_TC_WITHOUT_HEAD(bitstr_size);
106 ATF_TC_BODY(bitstr_size, tc)
108 size_t sob = sizeof(bitstr_t);
110 ATF_CHECK_EQ(0, bitstr_size(0));
111 ATF_CHECK_EQ(sob, bitstr_size(1));
112 ATF_CHECK_EQ(sob, bitstr_size(sob * 8));
113 ATF_CHECK_EQ(2 * sob, bitstr_size(sob * 8 + 1));
116 BITSTRING_TC_DEFINE(bit_set)
117 /* bitstr_t *bitstr, int nbits, const char *memloc */
119 memset(bitstr, 0, bitstr_size(nbits));
121 for (int i = 0; i < nbits; i++) {
124 for (int j = 0; j < nbits; j++) {
125 ATF_REQUIRE_MSG(bit_test(bitstr, j) == (j == i) ? 1 : 0,
126 "bit_set_%d_%s: Failed on bit %d",
130 bit_clear(bitstr, i);
134 BITSTRING_TC_DEFINE(bit_clear)
135 /* bitstr_t *bitstr, int nbits, const char *memloc */
139 memset(bitstr, 0xFF, bitstr_size(nbits));
140 for (i = 0; i < nbits; i++) {
141 bit_clear(bitstr, i);
143 for (j = 0; j < nbits; j++) {
144 ATF_REQUIRE_MSG(bit_test(bitstr, j) == (j == i) ? 0 : 1,
145 "bit_clear_%d_%s: Failed on bit %d",
153 BITSTRING_TC_DEFINE(bit_ffs)
154 /* bitstr_t *bitstr, int nbits, const char *memloc */
159 memset(bitstr, 0, bitstr_size(nbits));
160 bit_ffs(bitstr, nbits, &found_set_bit);
161 ATF_REQUIRE_MSG(found_set_bit == -1,
162 "bit_ffs_%d_%s: Failed all clear bits.", nbits, memloc);
164 for (i = 0; i < nbits; i++) {
165 memset(bitstr, 0xFF, bitstr_size(nbits));
167 bit_nclear(bitstr, 0, i - 1);
169 bit_ffs(bitstr, nbits, &found_set_bit);
170 ATF_REQUIRE_MSG(found_set_bit == i,
171 "bit_ffs_%d_%s: Failed on bit %d, Result %d",
172 nbits, memloc, i, found_set_bit);
176 BITSTRING_TC_DEFINE(bit_ffc)
177 /* bitstr_t *bitstr, int nbits, const char *memloc */
182 memset(bitstr, 0xFF, bitstr_size(nbits));
183 bit_ffc(bitstr, nbits, &found_clear_bit);
184 ATF_REQUIRE_MSG(found_clear_bit == -1,
185 "bit_ffc_%d_%s: Failed all set bits.", nbits, memloc);
187 for (i = 0; i < nbits; i++) {
188 memset(bitstr, 0, bitstr_size(nbits));
190 bit_nset(bitstr, 0, i - 1);
192 bit_ffc(bitstr, nbits, &found_clear_bit);
193 ATF_REQUIRE_MSG(found_clear_bit == i,
194 "bit_ffc_%d_%s: Failed on bit %d, Result %d",
195 nbits, memloc, i, found_clear_bit);
199 BITSTRING_TC_DEFINE(bit_ffs_at)
200 /* bitstr_t *bitstr, int nbits, const char *memloc */
205 memset(bitstr, 0xFF, bitstr_size(nbits));
206 for (i = 0; i < nbits; i++) {
207 bit_ffs_at(bitstr, i, nbits, &found_set_bit);
208 ATF_REQUIRE_MSG(found_set_bit == i,
209 "bit_ffs_at_%d_%s: Failed on bit %d, Result %d",
210 nbits, memloc, i, found_set_bit);
213 memset(bitstr, 0, bitstr_size(nbits));
214 for (i = 0; i < nbits; i++) {
215 bit_ffs_at(bitstr, i, nbits, &found_set_bit);
216 ATF_REQUIRE_MSG(found_set_bit == -1,
217 "bit_ffs_at_%d_%s: Failed on bit %d, Result %d",
218 nbits, memloc, i, found_set_bit);
221 memset(bitstr, 0x55, bitstr_size(nbits));
222 for (i = 0; i < nbits; i++) {
223 bit_ffs_at(bitstr, i, nbits, &found_set_bit);
224 if (i == nbits - 1 && (nbits & 1) == 0) {
225 ATF_REQUIRE_MSG(found_set_bit == -1,
226 "bit_ffs_at_%d_%s: Failed on bit %d, Result %d",
227 nbits, memloc, i, found_set_bit);
229 ATF_REQUIRE_MSG(found_set_bit == i + (i & 1),
230 "bit_ffs_at_%d_%s: Failed on bit %d, Result %d",
231 nbits, memloc, i, found_set_bit);
235 memset(bitstr, 0xAA, bitstr_size(nbits));
236 for (i = 0; i < nbits; i++) {
237 bit_ffs_at(bitstr, i, nbits, &found_set_bit);
238 if (i == nbits - 1 && (nbits & 1) != 0) {
239 ATF_REQUIRE_MSG(found_set_bit == -1,
240 "bit_ffs_at_%d_%s: Failed on bit %d, Result %d",
241 nbits, memloc, i, found_set_bit);
244 found_set_bit == i + ((i & 1) ? 0 : 1),
245 "bit_ffs_at_%d_%s: Failed on bit %d, Result %d",
246 nbits, memloc, i, found_set_bit);
251 BITSTRING_TC_DEFINE(bit_ffc_at)
252 /* bitstr_t *bitstr, int nbits, const char *memloc */
254 int i, found_clear_bit;
256 memset(bitstr, 0, bitstr_size(nbits));
257 for (i = 0; i < nbits; i++) {
258 bit_ffc_at(bitstr, i, nbits, &found_clear_bit);
259 ATF_REQUIRE_MSG(found_clear_bit == i,
260 "bit_ffc_at_%d_%s: Failed on bit %d, Result %d",
261 nbits, memloc, i, found_clear_bit);
264 memset(bitstr, 0xFF, bitstr_size(nbits));
265 for (i = 0; i < nbits; i++) {
266 bit_ffc_at(bitstr, i, nbits, &found_clear_bit);
267 ATF_REQUIRE_MSG(found_clear_bit == -1,
268 "bit_ffc_at_%d_%s: Failed on bit %d, Result %d",
269 nbits, memloc, i, found_clear_bit);
272 memset(bitstr, 0x55, bitstr_size(nbits));
273 for (i = 0; i < nbits; i++) {
274 bit_ffc_at(bitstr, i, nbits, &found_clear_bit);
275 if (i == nbits - 1 && (nbits & 1) != 0) {
276 ATF_REQUIRE_MSG(found_clear_bit == -1,
277 "bit_ffc_at_%d_%s: Failed on bit %d, Result %d",
278 nbits, memloc, i, found_clear_bit);
281 found_clear_bit == i + ((i & 1) ? 0 : 1),
282 "bit_ffc_at_%d_%s: Failed on bit %d, Result %d",
283 nbits, memloc, i, found_clear_bit);
287 memset(bitstr, 0xAA, bitstr_size(nbits));
288 for (i = 0; i < nbits; i++) {
289 bit_ffc_at(bitstr, i, nbits, &found_clear_bit);
290 if (i == nbits - 1 && (nbits & 1) == 0) {
291 ATF_REQUIRE_MSG(found_clear_bit == -1,
292 "bit_ffc_at_%d_%s: Failed on bit %d, Result %d",
293 nbits, memloc, i, found_clear_bit);
295 ATF_REQUIRE_MSG(found_clear_bit == i + (i & 1),
296 "bit_ffc_at_%d_%s: Failed on bit %d, Result %d",
297 nbits, memloc, i, found_clear_bit);
302 BITSTRING_TC_DEFINE(bit_nclear)
303 /* bitstr_t *bitstr, int nbits, const char *memloc */
309 for (i = 0; i < nbits; i++) {
310 for (j = i; j < nbits; j++) {
311 memset(bitstr, 0xFF, bitstr_size(nbits));
312 bit_nclear(bitstr, i, j);
314 bit_ffc(bitstr, nbits, &found_clear_bit);
316 found_clear_bit == i,
317 "bit_nclear_%d_%d_%d%s: Failed with result %d",
318 nbits, i, j, memloc, found_clear_bit);
320 bit_ffs_at(bitstr, i, nbits, &found_set_bit);
322 (j + 1 < nbits) ? found_set_bit == j + 1 : -1,
323 "bit_nset_%d_%d_%d%s: Failed with result %d",
324 nbits, i, j, memloc, found_set_bit);
329 BITSTRING_TC_DEFINE(bit_nset)
330 /* bitstr_t *bitstr, int nbits, const char *memloc */
336 for (i = 0; i < nbits; i++) {
337 for (j = i; j < nbits; j++) {
338 memset(bitstr, 0, bitstr_size(nbits));
339 bit_nset(bitstr, i, j);
341 bit_ffs(bitstr, nbits, &found_set_bit);
344 "bit_nset_%d_%d_%d%s: Failed with result %d",
345 nbits, i, j, memloc, found_set_bit);
347 bit_ffc_at(bitstr, i, nbits, &found_clear_bit);
349 (j + 1 < nbits) ? found_clear_bit == j + 1 : -1,
350 "bit_nset_%d_%d_%d%s: Failed with result %d",
351 nbits, i, j, memloc, found_clear_bit);
356 BITSTRING_TC_DEFINE(bit_count)
357 /* bitstr_t *bitstr, int nbits, const char *memloc */
359 int result, s, e, expected;
362 memset(bitstr, 0, bitstr_size(nbits));
363 bit_count(bitstr, 0, nbits, &result);
364 ATF_CHECK_MSG(0 == result,
365 "bit_count_%d_%s_%s: Failed with result %d",
366 nbits, "clear", memloc, result);
369 memset(bitstr, 0xFF, bitstr_size(nbits));
370 bit_count(bitstr, 0, nbits, &result);
371 ATF_CHECK_MSG(nbits == result,
372 "bit_count_%d_%s_%s: Failed with result %d",
373 nbits, "set", memloc, result);
375 /* Invalid _start value */
376 memset(bitstr, 0xFF, bitstr_size(nbits));
377 bit_count(bitstr, nbits, nbits, &result);
378 ATF_CHECK_MSG(0 == result,
379 "bit_count_%d_%s_%s: Failed with result %d",
380 nbits, "invalid_start", memloc, result);
382 /* Alternating bitstr, starts with 0 */
383 memset(bitstr, 0xAA, bitstr_size(nbits));
384 bit_count(bitstr, 0, nbits, &result);
385 ATF_CHECK_MSG(nbits / 2 == result,
386 "bit_count_%d_%s_%d_%s: Failed with result %d",
387 nbits, "alternating", 0, memloc, result);
389 /* Alternating bitstr, starts with 1 */
390 memset(bitstr, 0x55, bitstr_size(nbits));
391 bit_count(bitstr, 0, nbits, &result);
392 ATF_CHECK_MSG((nbits + 1) / 2 == result,
393 "bit_count_%d_%s_%d_%s: Failed with result %d",
394 nbits, "alternating", 1, memloc, result);
396 /* Varying start location */
397 memset(bitstr, 0xAA, bitstr_size(nbits));
398 for (s = 0; s < nbits; s++) {
399 expected = s % 2 == 0 ? (nbits - s) / 2 : (nbits - s + 1) / 2;
400 bit_count(bitstr, s, nbits, &result);
401 ATF_CHECK_MSG(expected == result,
402 "bit_count_%d_%s_%d_%s: Failed with result %d",
403 nbits, "vary_start", s, memloc, result);
406 /* Varying end location */
407 memset(bitstr, 0xAA, bitstr_size(nbits));
408 for (e = 0; e < nbits; e++) {
409 bit_count(bitstr, 0, e, &result);
410 ATF_CHECK_MSG(e / 2 == result,
411 "bit_count_%d_%s_%d_%s: Failed with result %d",
412 nbits, "vary_end", e, memloc, result);
420 ATF_TP_ADD_TC(tp, bitstr_in_struct);
421 ATF_TP_ADD_TC(tp, bitstr_size);
422 BITSTRING_TC_ADD(tp, bit_set);
423 BITSTRING_TC_ADD(tp, bit_clear);
424 BITSTRING_TC_ADD(tp, bit_ffs);
425 BITSTRING_TC_ADD(tp, bit_ffc);
426 BITSTRING_TC_ADD(tp, bit_ffs_at);
427 BITSTRING_TC_ADD(tp, bit_ffc_at);
428 BITSTRING_TC_ADD(tp, bit_nclear);
429 BITSTRING_TC_ADD(tp, bit_nset);
430 BITSTRING_TC_ADD(tp, bit_count);
432 return (atf_no_error());