src/test_libFLAC/endswap.c

   1 /* test_libFLAC - Unit tester for libFLAC
   2  * Copyright (C) 2014  Xiph.Org Foundation
   3  *
   4  * This program is free software; you can redistribute it and/or
   5  * modify it under the terms of the GNU General Public License
   6  * as published by the Free Software Foundation; either version 2
   7  * of the License, or (at your option) any later version.
   8  *
   9  * This program is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  * GNU General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU General Public License along
  15  * with this program; if not, write to the Free Software Foundation, Inc.,
  16  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  17  */
  18
  19 #ifdef HAVE_CONFIG_H
  20 #  include <config.h>
  21 #endif
  22
  23 #include <stdio.h>
  24 #include <string.h>
  25
  26 #include "share/compat.h"
  27 #include "FLAC/assert.h"
  28 #include "share/endswap.h"
  29 #include "private/md5.h"
  30 #include "endswap.h"
  31
  32
  33 FLAC__bool test_endswap(void)
  34 {
  35         int16_t i16 = 0x1234;
  36         uint16_t u16 = 0xabcd;
  37         int32_t i32 = 0x12345678;
  38         uint32_t u32 = 0xabcdef01;
  39
  40         union {
  41                 unsigned char bytes[4];
  42                 uint16_t u16;
  43                 uint32_t u32;
  44         } data;
  45
  46         printf("\n+++ libFLAC unit test: endswap (%s endian host)\n\n", CPU_IS_LITTLE_ENDIAN ? "little" : "big");
  47
  48         printf("testing ENDSWAP_16 on int16_t ... ");
  49         if (((int16_t) ENDSWAP_16(i16)) == i16) {
  50                 printf("\nFAILED, ENDSWAP_16(0x%04x) -> 0x%04x == 0x%04x\n", i16, ENDSWAP_16(i16), i16);
  51                 return false;
  52         }
  53         if (((int16_t) ENDSWAP_16(ENDSWAP_16(i16))) != i16) {
  54                 printf("\nFAILED, ENDSWAP_16(ENDSWAP_16(0x%04x)) -> 0x%04x != 0x%04x\n", i16, ENDSWAP_16(ENDSWAP_16(i16)), i16);
  55                 return false;
  56         }
  57         puts("OK");
  58
  59         printf("testing ENDSWAP_16 on uint16_t ... ");
  60         if (((uint16_t) ENDSWAP_16(u16)) == u16) {
  61                 printf("\nFAILED, ENDSWAP_16(0x%04x) -> 0x%04x == 0x%04x\n", u16, ENDSWAP_16(u16), u16);
  62                 return false;
  63         }
  64         if (((uint16_t) ENDSWAP_16(ENDSWAP_16(u16))) != u16) {
  65                 printf("\nFAILED, ENDSWAP_16(ENDSWAP_16(0x%04x)) -> 0x%04x != 0x%04x\n", u16, ENDSWAP_16(ENDSWAP_16(u16)), u16);
  66                 return false;
  67         }
  68         puts("OK");
  69
  70         printf("testing ENDSWAP_32 on int32_t ... ");
  71         if (((int32_t) ENDSWAP_32 (i32)) == i32) {
  72                 printf("\nFAILED, ENDSWAP_32(0x%08x) -> 0x%08x == 0x%08x\n", i32, (unsigned) ENDSWAP_32 (i32), i32);
  73                 return false;
  74         }
  75         if (((int32_t) ENDSWAP_32 (ENDSWAP_32 (i32))) != i32) {
  76                 printf("\nFAILED, ENDSWAP_32(ENDSWAP_32(0x%08x)) -> 0x%08x != 0x%08x\n", i32, (unsigned) ENDSWAP_32(ENDSWAP_32 (i32)), i32);
  77                 return false;
  78         }
  79         puts("OK");
  80
  81         printf("testing ENDSWAP_32 on uint32_t ... ");
  82         if (((uint32_t) ENDSWAP_32(u32)) == u32) {
  83                 printf("\nFAILED, ENDSWAP_32(0x%08x) -> 0x%08x == 0x%08x\n", u32, (unsigned) ENDSWAP_32(u32), u32);
  84                 return false;
  85         }
  86         if (((uint32_t) ENDSWAP_32 (ENDSWAP_32(u32))) != u32) {
  87                 printf("\nFAILED, ENDSWAP_32(ENDSWAP_32(0x%08x)) -> 0x%08x != 0%08x\n", u32, (unsigned) ENDSWAP_32(ENDSWAP_32(u32)), u32);
  88                 return false;
  89         }
  90         puts("OK");
  91
  92         printf("testing H2LE_16 on uint16_t ... ");
  93         data.u16 = H2LE_16(0x1234);
  94         if (data.bytes [0] != 0x34 || data.bytes [1] != 0x12) {
  95                 printf("\nFAILED, H2LE_16(0x%04x) -> { 0x%02x, 0x%02x }\n", data.u16, data.bytes [0] & 0xff, data.bytes [1] & 0xff);
  96                 return false;
  97         }
  98         puts("OK");
  99
 100         printf("testing H2LE_32 on uint32_t ... ");
 101         data.u32 = H2LE_32(0x12345678);
 102         if (data.bytes [0] != 0x78 || data.bytes [1] != 0x56 || data.bytes [2] != 0x34 || data.bytes [3] != 0x12) {
 103                 printf("\nFAILED,  H2LE_32(0x%08x) -> { 0x%02x, 0x%02x, 0x%02x, 0x%02x }\n",
 104                         data.u32, data.bytes [0] & 0xff, data.bytes [1] & 0xff, data.bytes [2] & 0xff, data.bytes [3] & 0xff);
 105                 return false;
 106         }
 107         puts("OK");
 108
 109         printf("\nPASSED!\n");
 110         return true;
 111 }