289 lines
7.3 KiB
C
289 lines
7.3 KiB
C
/*
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* This testing program makes sure the bitops functions work
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*
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* Copyright (C) 2001 by Theodore Ts'o.
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*
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* %Begin-Header%
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* This file may be redistributed under the terms of the GNU Library
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* General Public License, version 2.
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* %End-Header%
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*/
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#include "config.h"
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#include <stdio.h>
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#include <string.h>
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#if HAVE_UNISTD_H
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#include <unistd.h>
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#endif
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#include <fcntl.h>
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#include <time.h>
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#include <sys/stat.h>
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#include <sys/types.h>
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#if HAVE_ERRNO_H
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#include <errno.h>
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#endif
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#include <sys/time.h>
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#include <sys/resource.h>
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#include "ext2_fs.h"
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#include "ext2fs.h"
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unsigned char bitarray[] = {
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0x80, 0xF0, 0x40, 0x40, 0x0, 0x0, 0x0, 0x0, 0x10, 0x20, 0x00, 0x00
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};
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int bits_list[] = {
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7, 12, 13, 14,15, 22, 30, 68, 77, -1,
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};
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#define BIG_TEST_BIT (((unsigned) 1 << 31) + 42)
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int main(int argc, char **argv)
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{
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int i, j, size;
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unsigned char testarray[12];
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unsigned char *bigarray;
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size = sizeof(bitarray)*8;
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#if 0
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i = ext2fs_find_first_bit_set(bitarray, size);
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while (i < size) {
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printf("Bit set: %d\n", i);
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i = ext2fs_find_next_bit_set(bitarray, size, i+1);
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}
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#endif
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/* Test test_bit */
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for (i=0,j=0; i < size; i++) {
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if (ext2fs_test_bit(i, bitarray)) {
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if (bits_list[j] == i) {
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j++;
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} else {
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printf("Bit %d set, not expected\n", i);
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exit(1);
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}
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} else {
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if (bits_list[j] == i) {
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printf("Expected bit %d to be clear.\n", i);
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exit(1);
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}
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}
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}
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printf("ext2fs_test_bit appears to be correct\n");
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/* Test ext2fs_set_bit */
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memset(testarray, 0, sizeof(testarray));
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for (i=0; bits_list[i] > 0; i++) {
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ext2fs_set_bit(bits_list[i], testarray);
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}
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if (memcmp(testarray, bitarray, sizeof(testarray)) == 0) {
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printf("ext2fs_set_bit test succeeded.\n");
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} else {
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printf("ext2fs_set_bit test failed.\n");
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for (i=0; i < sizeof(testarray); i++) {
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printf("%02x ", testarray[i]);
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}
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printf("\n");
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exit(1);
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}
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for (i=0; bits_list[i] > 0; i++) {
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ext2fs_clear_bit(bits_list[i], testarray);
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}
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for (i=0; i < sizeof(testarray); i++) {
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if (testarray[i]) {
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printf("ext2fs_clear_bit failed, "
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"testarray[%d] is %d\n", i, testarray[i]);
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exit(1);
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}
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}
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printf("ext2fs_clear_bit test succeed.\n");
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/* Do bigarray test */
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bigarray = malloc(1 << 29);
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if (!bigarray) {
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fprintf(stderr, "Failed to allocate scratch memory!\n");
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exit(1);
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}
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bigarray[BIG_TEST_BIT >> 3] = 0;
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ext2fs_set_bit(BIG_TEST_BIT, bigarray);
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printf("big bit number (%u) test: %d, expected %d\n", BIG_TEST_BIT,
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bigarray[BIG_TEST_BIT >> 3], (1 << (BIG_TEST_BIT & 7)));
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if (bigarray[BIG_TEST_BIT >> 3] != (1 << (BIG_TEST_BIT & 7)))
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exit(1);
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ext2fs_clear_bit(BIG_TEST_BIT, bigarray);
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printf("big bit number (%u) test: %d, expected 0\n", BIG_TEST_BIT,
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bigarray[BIG_TEST_BIT >> 3]);
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if (bigarray[BIG_TEST_BIT >> 3] != 0)
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exit(1);
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printf("ext2fs_set_bit big_test successful\n");
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/* Now test ext2fs_fast_set_bit */
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memset(testarray, 0, sizeof(testarray));
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for (i=0; bits_list[i] > 0; i++) {
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ext2fs_fast_set_bit(bits_list[i], testarray);
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}
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if (memcmp(testarray, bitarray, sizeof(testarray)) == 0) {
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printf("ext2fs_fast_set_bit test succeeded.\n");
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} else {
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printf("ext2fs_fast_set_bit test failed.\n");
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for (i=0; i < sizeof(testarray); i++) {
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printf("%02x ", testarray[i]);
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}
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printf("\n");
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exit(1);
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}
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for (i=0; bits_list[i] > 0; i++) {
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ext2fs_clear_bit(bits_list[i], testarray);
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}
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for (i=0; i < sizeof(testarray); i++) {
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if (testarray[i]) {
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printf("ext2fs_clear_bit failed, "
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"testarray[%d] is %d\n", i, testarray[i]);
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exit(1);
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}
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}
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printf("ext2fs_clear_bit test succeed.\n");
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bigarray[BIG_TEST_BIT >> 3] = 0;
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ext2fs_fast_set_bit(BIG_TEST_BIT, bigarray);
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printf("big bit number (%u) test: %d, expected %d\n", BIG_TEST_BIT,
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bigarray[BIG_TEST_BIT >> 3], (1 << (BIG_TEST_BIT & 7)));
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if (bigarray[BIG_TEST_BIT >> 3] != (1 << (BIG_TEST_BIT & 7)))
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exit(1);
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ext2fs_fast_clear_bit(BIG_TEST_BIT, bigarray);
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printf("big bit number (%u) test: %d, expected 0\n", BIG_TEST_BIT,
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bigarray[BIG_TEST_BIT >> 3]);
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if (bigarray[BIG_TEST_BIT >> 3] != 0)
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exit(1);
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printf("ext2fs_fast_set_bit big_test successful\n");
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/* Repeat foregoing tests for 64-bit bitops */
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/* Test test_bit */
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for (i=0,j=0; i < size; i++) {
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if (ext2fs_test_bit64(i, bitarray)) {
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if (bits_list[j] == i) {
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j++;
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} else {
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printf("64-bit: Bit %d set, not expected\n",
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i);
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exit(1);
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}
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} else {
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if (bits_list[j] == i) {
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printf("64-bit: "
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"Expected bit %d to be clear.\n", i);
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exit(1);
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}
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}
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}
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printf("64-bit: ext2fs_test_bit appears to be correct\n");
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/* Test ext2fs_set_bit */
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memset(testarray, 0, sizeof(testarray));
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for (i=0; bits_list[i] > 0; i++) {
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ext2fs_set_bit64(bits_list[i], testarray);
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}
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if (memcmp(testarray, bitarray, sizeof(testarray)) == 0) {
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printf("64-bit: ext2fs_set_bit test succeeded.\n");
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} else {
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printf("64-bit: ext2fs_set_bit test failed.\n");
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for (i=0; i < sizeof(testarray); i++) {
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printf("%02x ", testarray[i]);
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}
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printf("\n");
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exit(1);
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}
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for (i=0; bits_list[i] > 0; i++) {
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ext2fs_clear_bit64(bits_list[i], testarray);
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}
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for (i=0; i < sizeof(testarray); i++) {
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if (testarray[i]) {
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printf("64-bit: ext2fs_clear_bit failed, "
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"testarray[%d] is %d\n", i, testarray[i]);
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exit(1);
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}
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}
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printf("64-bit: ext2fs_clear_bit test succeed.\n");
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/* Do bigarray test */
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bigarray[BIG_TEST_BIT >> 3] = 0;
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ext2fs_set_bit64(BIG_TEST_BIT, bigarray);
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printf("64-bit: big bit number (%u) test: %d, expected %d\n",
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BIG_TEST_BIT, bigarray[BIG_TEST_BIT >> 3],
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(1 << (BIG_TEST_BIT & 7)));
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if (bigarray[BIG_TEST_BIT >> 3] != (1 << (BIG_TEST_BIT & 7)))
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exit(1);
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ext2fs_clear_bit64(BIG_TEST_BIT, bigarray);
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printf("64-bit: big bit number (%u) test: %d, expected 0\n",
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BIG_TEST_BIT,
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bigarray[BIG_TEST_BIT >> 3]);
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if (bigarray[BIG_TEST_BIT >> 3] != 0)
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exit(1);
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printf("64-bit: ext2fs_set_bit big_test successful\n");
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/* Now test ext2fs_fast_set_bit */
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memset(testarray, 0, sizeof(testarray));
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for (i=0; bits_list[i] > 0; i++) {
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ext2fs_fast_set_bit64(bits_list[i], testarray);
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}
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if (memcmp(testarray, bitarray, sizeof(testarray)) == 0) {
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printf("64-bit: ext2fs_fast_set_bit test succeeded.\n");
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} else {
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printf("64-bit: ext2fs_fast_set_bit test failed.\n");
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for (i=0; i < sizeof(testarray); i++) {
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printf("%02x ", testarray[i]);
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}
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printf("\n");
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exit(1);
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}
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for (i=0; bits_list[i] > 0; i++) {
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ext2fs_clear_bit64(bits_list[i], testarray);
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}
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for (i=0; i < sizeof(testarray); i++) {
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if (testarray[i]) {
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printf("64-bit: ext2fs_clear_bit failed, "
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"testarray[%d] is %d\n", i, testarray[i]);
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exit(1);
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}
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}
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printf("64-bit: ext2fs_clear_bit test succeed.\n");
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bigarray[BIG_TEST_BIT >> 3] = 0;
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ext2fs_fast_set_bit64(BIG_TEST_BIT, bigarray);
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printf("64-bit: big bit number (%u) test: %d, expected %d\n",
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BIG_TEST_BIT, bigarray[BIG_TEST_BIT >> 3],
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(1 << (BIG_TEST_BIT & 7)));
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if (bigarray[BIG_TEST_BIT >> 3] != (1 << (BIG_TEST_BIT & 7)))
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exit(1);
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ext2fs_fast_clear_bit64(BIG_TEST_BIT, bigarray);
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printf("64-bit: big bit number (%u) test: %d, expected 0\n",
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BIG_TEST_BIT, bigarray[BIG_TEST_BIT >> 3]);
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if (bigarray[BIG_TEST_BIT >> 3] != 0)
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exit(1);
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printf("64-bit: ext2fs_fast_set_bit big_test successful\n");
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free(bigarray);
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exit(0);
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}
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