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#include <stdio.h>
#include <string.h>
#include <parserutils/parserutils.h>
#include <parserutils/utils/buffer.h>
#include "utils/utils.h"
#include "testutils.h"
#define BUFF_LEN 2000
int main(int argc, char **argv)
{
uint8_t data[BUFF_LEN];
parserutils_buffer *buf;
int i;
UNUSED(argc);
UNUSED(argv);
assert(parserutils_buffer_create(&buf) == PARSERUTILS_OK);
/* Populate the data with '4's */
for (i = 0; i < BUFF_LEN; i++)
data[i] = '4';
assert(parserutils_buffer_append(buf, data, BUFF_LEN) ==
PARSERUTILS_OK);
/* Double the size, appending 'c's */
for (i = 0; i < BUFF_LEN; i++)
data[i] = 'c';
assert(parserutils_buffer_append(buf, data, BUFF_LEN) ==
PARSERUTILS_OK);
assert(buf->length == 2 * BUFF_LEN);
/* Now reduce the length by half */
/* Buffer length is all '4's now */
buf->length = BUFF_LEN;
/* Now discard half of the 4s from the middle of the buffer */
assert(parserutils_buffer_discard(buf, BUFF_LEN / 4, BUFF_LEN / 2) ==
PARSERUTILS_OK);
/* Now check that the length is what we expect */
assert(buf->length == BUFF_LEN / 2);
/* Now check that the buffer contains what we expect */
for (i = 0; i < BUFF_LEN / 2; i++)
assert(buf->data[i] == '4');
/* Now check that the space we allocated beyond the buffer length is
* as we expect, and not overwritten with 'c', which should be beyond
* what the buffer_ code is allowed to move. */
for (i = BUFF_LEN / 2; i < BUFF_LEN; i++)
assert(buf->data[i] != 'c');
assert(parserutils_buffer_destroy(buf) == PARSERUTILS_OK);
printf("PASS\n");
return 0;
}
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