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/*
* BIRD Library -- Bitmap Tests
*
* (c) 2019 Ondrej Zajicek <santiago@crfreenet.org>
* (c) 2019 CZ.NIC z.s.p.o.
*
* Can be freely distributed and used under the terms of the GNU GPL.
*/
#include "test/birdtest.h"
#include "sysdep/config.h"
#include "lib/bitmap.h"
#define MAX_NUM (1 << 20)
#define MAX_SET (1 << 19)
#define MAX_CLR (1 << 17)
#define STEP_NUM 1000
#define STEP_SET 1000
#define STEP_CLR 500
static int
t_bmap_set_clear_random(void)
{
struct bmap b;
resource_init();
bmap_init(&b, &root_pool, 1024);
char expected[MAX_NUM] = {};
uint i, n;
for (i = 0; i < MAX_SET; i++)
{
do n = bt_random() % MAX_NUM;
while (expected[n]);
bmap_set(&b, n);
expected[n] = 1;
}
for (i = 0; i < MAX_CLR; i++)
{
do n = bt_random() % MAX_NUM;
while (!expected[n]);
bmap_clear(&b, n);
expected[n] = 0;
}
for (i = 0; i < MAX_NUM; i++)
if (bmap_test(&b, i) != expected[i])
bt_abort_msg("Bitmap mismatch on %d (should be %d %d)", i, bmap_test(&b, i), expected[i]);
return 1;
}
static int
t_hmap_set_clear_random(void)
{
struct hmap b;
resource_init();
hmap_init(&b, &root_pool, 1024);
char expected[MAX_NUM] = {};
uint i, n;
for (i = 0; i < MAX_SET; i++)
{
do n = bt_random() % MAX_NUM;
while (expected[n]);
hmap_set(&b, n);
expected[n] = 1;
}
hmap_check(&b);
for (i = 0; i < MAX_CLR; i++)
{
do n = bt_random() % MAX_NUM;
while (!expected[n]);
hmap_clear(&b, n);
expected[n] = 0;
}
hmap_check(&b);
for (i = 0; i < MAX_NUM; i++)
if (hmap_test(&b, i) != expected[i])
bt_abort_msg("Bitmap mismatch on %d (should be %d %d)", i, hmap_test(&b, i), expected[i]);
for (i = 0; 1; i++)
{
n = hmap_first_zero(&b);
bt_assert(n >= i);
bt_assert(n <= MAX_NUM);
for (; i < n; i++)
bt_assert(expected[i]);
if (n == MAX_NUM)
break;
bt_assert(!expected[i]);
hmap_set(&b, n);
}
hmap_check(&b);
return 1;
}
static int
t_hmap_set_clear_fill(void)
{
struct hmap b;
resource_init();
hmap_init(&b, &root_pool, 1024);
char expected[MAX_NUM] = {};
uint i, j, n, max = 0;
for (i = 0; i < STEP_NUM; i++)
{
uint last = 0;
uint step_set = bt_random() % STEP_SET;
uint step_clr = bt_random() % STEP_CLR;
for (j = 0; j < step_set; j++)
{
n = hmap_first_zero(&b);
bt_assert(n > last || !last);
bt_assert(n < MAX_NUM);
if (!last)
last = n;
for (; last < n; last++)
bt_assert(expected[last]);
bt_assert(!expected[n]);
hmap_set(&b, n);
expected[n] = 1;
max = MAX(max, n);
}
for (j = 0; j < step_clr; j++)
{
uint k = 0;
do n = bt_random() % max;
while (!expected[n] && (k++ < 8));
if (!expected[n])
continue;
hmap_clear(&b, n);
expected[n] = 0;
}
}
for (i = 0; i < MAX_NUM; i++)
if (hmap_test(&b, i) != expected[i])
bt_abort_msg("Bitmap mismatch on %d (should be %d %d)", i, hmap_test(&b, i), expected[i]);
hmap_check(&b);
return 1;
}
int
main(int argc, char *argv[])
{
bt_init(argc, argv);
bt_test_suite(t_bmap_set_clear_random, "BMap - random sequence of sets / clears");
bt_test_suite(t_hmap_set_clear_random, "HMap - random sequence of sets / clears");
bt_test_suite(t_hmap_set_clear_fill, "HMap - linear sets and random clears");
return bt_exit_value();
}
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