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Spdk/test/unit/lib/util/bit_array.c/bit_array_ut.c
Jim Harris 488570ebd4 Replace most BSD 3-clause license text with SPDX identifier. 
Many open source projects have moved to using SPDX identifiers
to specify license information, reducing the amount of
boilerplate code in every source file.  This patch replaces
the bulk of SPDK .c, .cpp and Makefiles with the BSD-3-Clause
identifier.

Almost all of these files share the exact same license text,
and this patch only modifies the files that contain the
most common license text.  There can be slight variations
because the third clause contains company names - most say
"Intel Corporation", but there are instances for Nvidia,
Samsung, Eideticom and even "the copyright holder".

Used a bash script to automate replacement of the license text
with SPDX identifier which is checked into scripts/spdx.sh.

Signed-off-by: Jim Harris <james.r.harris@intel.com>
Change-Id: Iaa88ab5e92ea471691dc298cfe41ebfb5d169780
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/12904
Community-CI: Broadcom CI <spdk-ci.pdl@broadcom.com>
Community-CI: Mellanox Build Bot
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Aleksey Marchuk <alexeymar@nvidia.com>
Reviewed-by: Changpeng Liu <changpeng.liu@intel.com>
Reviewed-by: Dong Yi <dongx.yi@intel.com>
Reviewed-by: Konrad Sztyber <konrad.sztyber@intel.com>
Reviewed-by: Paul Luse <paul.e.luse@intel.com>
Reviewed-by: <qun.wan@intel.com>
2022-06-09 07:35:12 +00:00

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/* SPDX-License-Identifier: BSD-3-Clause
* Copyright (c) Intel Corporation.
* All rights reserved.
*/
#include "spdk/stdinc.h"
#include "spdk_cunit.h"
#include "util/bit_array.c"
#include "common/lib/test_env.c"
static void
test_1bit(void)
{
struct spdk_bit_array *ba;
ba = spdk_bit_array_create(1);
SPDK_CU_ASSERT_FATAL(ba != NULL);
CU_ASSERT(spdk_bit_array_capacity(ba) == 1);
CU_ASSERT(spdk_bit_array_get(ba, 0) == false);
CU_ASSERT(spdk_bit_array_find_first_set(ba, 0) == UINT32_MAX);
/* Set bit 0 */
CU_ASSERT(spdk_bit_array_set(ba, 0) == 0);
CU_ASSERT(spdk_bit_array_get(ba, 0) == true);
CU_ASSERT(spdk_bit_array_find_first_set(ba, 0) == 0);
/* Clear bit 0 */
spdk_bit_array_clear(ba, 0);
CU_ASSERT(spdk_bit_array_get(ba, 0) == false);
CU_ASSERT(spdk_bit_array_find_first_set(ba, 0) == UINT32_MAX);
spdk_bit_array_free(&ba);
CU_ASSERT(ba == NULL);
}
static void
test_64bit(void)
{
struct spdk_bit_array *ba;
ba = spdk_bit_array_create(64);
SPDK_CU_ASSERT_FATAL(ba != NULL);
CU_ASSERT(spdk_bit_array_capacity(ba) == 64);
CU_ASSERT(spdk_bit_array_get(ba, 0) == false);
CU_ASSERT(spdk_bit_array_get(ba, 63) == false);
CU_ASSERT(spdk_bit_array_get(ba, 64) == false);
CU_ASSERT(spdk_bit_array_get(ba, 1000) == false);
CU_ASSERT(spdk_bit_array_find_first_set(ba, 0) == UINT32_MAX);
/* Set bit 1 */
CU_ASSERT(spdk_bit_array_set(ba, 1) == 0);
CU_ASSERT(spdk_bit_array_get(ba, 0) == false);
CU_ASSERT(spdk_bit_array_get(ba, 1) == true);
CU_ASSERT(spdk_bit_array_find_first_set(ba, 0) == 1);
/* Set bit 63 (1 still set) */
CU_ASSERT(spdk_bit_array_set(ba, 63) == 0);
CU_ASSERT(spdk_bit_array_get(ba, 0) == false);
CU_ASSERT(spdk_bit_array_get(ba, 1) == true);
CU_ASSERT(spdk_bit_array_get(ba, 63) == true);
CU_ASSERT(spdk_bit_array_find_first_set(ba, 0) == 1);
/* Clear bit 1 (63 still set) */
spdk_bit_array_clear(ba, 1);
CU_ASSERT(spdk_bit_array_get(ba, 1) == false);
CU_ASSERT(spdk_bit_array_find_first_set(ba, 0) == 63);
/* Clear bit 63 (no bits set) */
spdk_bit_array_clear(ba, 63);
CU_ASSERT(spdk_bit_array_get(ba, 63) == false);
CU_ASSERT(spdk_bit_array_find_first_set(ba, 0) == UINT32_MAX);
spdk_bit_array_free(&ba);
}
static void
test_find(void)
{
struct spdk_bit_array *ba;
uint32_t i;
ba = spdk_bit_array_create(256);
SPDK_CU_ASSERT_FATAL(ba != NULL);
CU_ASSERT(spdk_bit_array_capacity(ba) == 256);
/* Set all bits */
for (i = 0; i < 256; i++) {
CU_ASSERT(spdk_bit_array_set(ba, i) == 0);
}
/* Verify that find_first_set and find_first_clear work for each starting position */
for (i = 0; i < 256; i++) {
CU_ASSERT(spdk_bit_array_find_first_set(ba, i) == i);
CU_ASSERT(spdk_bit_array_find_first_clear(ba, i) == UINT32_MAX);
}
CU_ASSERT(spdk_bit_array_find_first_set(ba, 256) == UINT32_MAX);
CU_ASSERT(spdk_bit_array_find_first_clear(ba, 256) == UINT32_MAX);
/* Clear bits 0 through 31 */
for (i = 0; i < 32; i++) {
spdk_bit_array_clear(ba, i);
}
for (i = 0; i < 32; i++) {
CU_ASSERT(spdk_bit_array_find_first_set(ba, i) == 32);
CU_ASSERT(spdk_bit_array_find_first_clear(ba, i) == i);
}
for (i = 32; i < 256; i++) {
CU_ASSERT(spdk_bit_array_find_first_set(ba, i) == i);
CU_ASSERT(spdk_bit_array_find_first_clear(ba, i) == UINT32_MAX);
}
/* Clear bit 255 */
spdk_bit_array_clear(ba, 255);
for (i = 0; i < 32; i++) {
CU_ASSERT(spdk_bit_array_find_first_set(ba, i) == 32);
CU_ASSERT(spdk_bit_array_find_first_clear(ba, i) == i);
}
for (i = 32; i < 255; i++) {
CU_ASSERT(spdk_bit_array_find_first_set(ba, i) == i);
CU_ASSERT(spdk_bit_array_find_first_clear(ba, i) == 255);
}
CU_ASSERT(spdk_bit_array_find_first_clear(ba, 256) == UINT32_MAX);
spdk_bit_array_free(&ba);
}
static void
test_resize(void)
{
struct spdk_bit_array *ba;
/* Start with a 0 bit array */
ba = spdk_bit_array_create(0);
SPDK_CU_ASSERT_FATAL(ba != NULL);
CU_ASSERT(spdk_bit_array_capacity(ba) == 0);
CU_ASSERT(spdk_bit_array_get(ba, 0) == false);
CU_ASSERT(spdk_bit_array_set(ba, 0) == -EINVAL);
spdk_bit_array_clear(ba, 0);
/* Increase size to 1 bit */
SPDK_CU_ASSERT_FATAL(spdk_bit_array_resize(&ba, 1) == 0);
SPDK_CU_ASSERT_FATAL(ba != NULL);
CU_ASSERT(spdk_bit_array_capacity(ba) == 1);
CU_ASSERT(spdk_bit_array_get(ba, 0) == false);
CU_ASSERT(spdk_bit_array_set(ba, 0) == 0);
CU_ASSERT(spdk_bit_array_get(ba, 0) == true);
/* Increase size to 2 bits */
SPDK_CU_ASSERT_FATAL(spdk_bit_array_resize(&ba, 2) == 0);
SPDK_CU_ASSERT_FATAL(ba != NULL);
CU_ASSERT(spdk_bit_array_capacity(ba) == 2);
CU_ASSERT(spdk_bit_array_get(ba, 1) == false);
CU_ASSERT(spdk_bit_array_set(ba, 1) == 0);
CU_ASSERT(spdk_bit_array_get(ba, 1) == true);
/* Shrink size back to 1 bit */
SPDK_CU_ASSERT_FATAL(spdk_bit_array_resize(&ba, 1) == 0);
SPDK_CU_ASSERT_FATAL(ba != NULL);
CU_ASSERT(spdk_bit_array_capacity(ba) == 1);
CU_ASSERT(spdk_bit_array_get(ba, 0) == true);
CU_ASSERT(spdk_bit_array_get(ba, 1) == false);
/* Increase size to 65 bits */
SPDK_CU_ASSERT_FATAL(spdk_bit_array_resize(&ba, 65) == 0);
SPDK_CU_ASSERT_FATAL(ba != NULL);
CU_ASSERT(spdk_bit_array_capacity(ba) == 65);
CU_ASSERT(spdk_bit_array_get(ba, 0) == true);
CU_ASSERT(spdk_bit_array_get(ba, 1) == false);
CU_ASSERT(spdk_bit_array_set(ba, 64) == 0);
CU_ASSERT(spdk_bit_array_get(ba, 64) == true);
/* Shrink size back to 0 bits */
SPDK_CU_ASSERT_FATAL(spdk_bit_array_resize(&ba, 0) == 0);
SPDK_CU_ASSERT_FATAL(ba != NULL);
CU_ASSERT(spdk_bit_array_capacity(ba) == 0);
CU_ASSERT(spdk_bit_array_get(ba, 0) == false);
CU_ASSERT(spdk_bit_array_get(ba, 1) == false);
spdk_bit_array_free(&ba);
}
static void
test_errors(void)
{
/* Passing NULL to resize should fail. */
CU_ASSERT(spdk_bit_array_resize(NULL, 0) == -EINVAL);
/* Passing NULL to free is a no-op. */
spdk_bit_array_free(NULL);
}
static void
test_count(void)
{
struct spdk_bit_array *ba;
uint32_t i;
/* 0-bit array should have 0 bits set and 0 bits clear */
ba = spdk_bit_array_create(0);
SPDK_CU_ASSERT_FATAL(ba != NULL);
CU_ASSERT(spdk_bit_array_count_set(ba) == 0);
CU_ASSERT(spdk_bit_array_count_clear(ba) == 0);
spdk_bit_array_free(&ba);
/* 1-bit array */
ba = spdk_bit_array_create(1);
SPDK_CU_ASSERT_FATAL(ba != NULL);
CU_ASSERT(spdk_bit_array_count_set(ba) == 0);
CU_ASSERT(spdk_bit_array_count_clear(ba) == 1);
spdk_bit_array_set(ba, 0);
CU_ASSERT(spdk_bit_array_count_set(ba) == 1);
CU_ASSERT(spdk_bit_array_count_clear(ba) == 0);
spdk_bit_array_free(&ba);
/* 65-bit array */
ba = spdk_bit_array_create(65);
SPDK_CU_ASSERT_FATAL(ba != NULL);
CU_ASSERT(spdk_bit_array_count_set(ba) == 0);
CU_ASSERT(spdk_bit_array_count_clear(ba) == 65);
spdk_bit_array_set(ba, 0);
CU_ASSERT(spdk_bit_array_count_set(ba) == 1);
CU_ASSERT(spdk_bit_array_count_clear(ba) == 64);
spdk_bit_array_set(ba, 5);
CU_ASSERT(spdk_bit_array_count_set(ba) == 2);
CU_ASSERT(spdk_bit_array_count_clear(ba) == 63);
spdk_bit_array_set(ba, 13);
CU_ASSERT(spdk_bit_array_count_set(ba) == 3);
CU_ASSERT(spdk_bit_array_count_clear(ba) == 62);
spdk_bit_array_clear(ba, 0);
CU_ASSERT(spdk_bit_array_count_set(ba) == 2);
CU_ASSERT(spdk_bit_array_count_clear(ba) == 63);
for (i = 0; i < 65; i++) {
spdk_bit_array_set(ba, i);
}
CU_ASSERT(spdk_bit_array_count_set(ba) == 65);
CU_ASSERT(spdk_bit_array_count_clear(ba) == 0);
for (i = 0; i < 65; i++) {
spdk_bit_array_clear(ba, i);
CU_ASSERT(spdk_bit_array_count_set(ba) == 65 - i - 1);
CU_ASSERT(spdk_bit_array_count_clear(ba) == i + 1);
}
spdk_bit_array_free(&ba);
}
#define TEST_MASK_SIZE 128
#define TEST_BITS_NUM (TEST_MASK_SIZE * 8 - 3)
static void
test_mask_store_load(void)
{
struct spdk_bit_array *ba;
uint8_t mask[TEST_MASK_SIZE] = { 0 };
uint32_t i;
ba = spdk_bit_array_create(TEST_BITS_NUM);
/* Check if stored mask is consistent with bit array mask */
spdk_bit_array_set(ba, 0);
spdk_bit_array_set(ba, TEST_BITS_NUM / 2);
spdk_bit_array_set(ba, TEST_BITS_NUM - 1);
spdk_bit_array_store_mask(ba, mask);
for (i = 0; i < TEST_BITS_NUM; i++) {
if (i == 0 || i == TEST_BITS_NUM / 2 || i == TEST_BITS_NUM - 1) {
CU_ASSERT((mask[i / 8] & (1U << (i % 8))));
} else {
CU_ASSERT(!(mask[i / 8] & (1U << (i % 8))));
}
}
/* Check if loaded mask is consistent with bit array mask */
memset(mask, 0, TEST_MASK_SIZE);
mask[0] = 1;
mask[TEST_MASK_SIZE - 1] = 1U << 4;
spdk_bit_array_load_mask(ba, mask);
CU_ASSERT(spdk_bit_array_get(ba, 0));
CU_ASSERT(spdk_bit_array_get(ba, TEST_BITS_NUM - 1));
spdk_bit_array_clear(ba, 0);
spdk_bit_array_clear(ba, TEST_BITS_NUM - 1);
for (i = 0; i < TEST_BITS_NUM; i++) {
CU_ASSERT(!spdk_bit_array_get(ba, i));
}
spdk_bit_array_free(&ba);
}
static void
test_mask_clear(void)
{
struct spdk_bit_array *ba;
uint32_t i;
ba = spdk_bit_array_create(TEST_BITS_NUM);
for (i = 0; i < TEST_BITS_NUM; i++) {
spdk_bit_array_set(ba, i);
}
spdk_bit_array_clear_mask(ba);
for (i = 0; i < TEST_BITS_NUM; i++) {
CU_ASSERT(!spdk_bit_array_get(ba, i));
}
spdk_bit_array_free(&ba);
}
int
main(int argc, char **argv)
{
CU_pSuite suite = NULL;
unsigned int num_failures;
CU_set_error_action(CUEA_ABORT);
CU_initialize_registry();
suite = CU_add_suite("bit_array", NULL, NULL);
CU_ADD_TEST(suite, test_1bit);
CU_ADD_TEST(suite, test_64bit);
CU_ADD_TEST(suite, test_find);
CU_ADD_TEST(suite, test_resize);
CU_ADD_TEST(suite, test_errors);
CU_ADD_TEST(suite, test_count);
CU_ADD_TEST(suite, test_mask_store_load);
CU_ADD_TEST(suite, test_mask_clear);
CU_basic_set_mode(CU_BRM_VERBOSE);
CU_basic_run_tests();
num_failures = CU_get_number_of_failures();
CU_cleanup_registry();
return num_failures;
}
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