tests/conv.c

   1 /*
   2  * This file is part of the libsigrok project.
   3  *
   4  * Copyright (C) 2020 Gerhard Sittig <gerhard.sittig@gmx.net>
   5  *
   6  * This program is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License as published by
   8  * the Free Software Foundation; either version 2 of the License, or
   9  * (at your option) any later version.
  10  *
  11  * This program is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  * GNU General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public License
  17  * along with this program; if not, see <http://www.gnu.org/licenses/>.
  18  */
  19
  20 #include <config.h>
  21 #include <check.h>
  22 #include <libsigrok/libsigrok.h>
  23 #include <stdlib.h>
  24 #include <string.h>
  25 #include "lib.h"
  26 #include "libsigrok-internal.h"
  27
  28 static const uint8_t buff1234[] = {
  29         0x11, 0x22, 0x33, 0x44, 0x55, 0x66, 0x77, 0x88,
  30 };
  31 static const uint8_t buff8125fb[] = {
  32         0x41, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
  33 };
  34 static const uint8_t buff8125fl[] = {
  35         0x00, 0x00, 0x02, 0x41, 0x00, 0x00, 0x00, 0x00,
  36 };
  37
  38 START_TEST(test_endian_macro)
  39 {
  40         const uint8_t *p8;
  41         const uint16_t *p16;
  42         const uint32_t *p32;
  43
  44         p8 = (const void *)&buff1234[0];
  45         fail_unless(R8(&p8[0]) == 0x11);
  46         fail_unless(R8(&p8[1]) == 0x22);
  47         fail_unless(R8(&p8[2]) == 0x33);
  48         fail_unless(R8(&p8[3]) == 0x44);
  49
  50         p16 = (const void *)&buff1234[0];
  51         fail_unless(RB16(&p16[0]) == 0x1122);
  52         fail_unless(RB16(&p16[1]) == 0x3344);
  53
  54         p16 = (const void *)&buff1234[0];
  55         fail_unless(RL16(&p16[0]) == 0x2211);
  56         fail_unless(RL16(&p16[1]) == 0x4433);
  57
  58         p32 = (const void *)&buff1234[0];
  59         fail_unless(RB32(&p32[0]) == 0x11223344);
  60         fail_unless(RB32(&p32[1]) == 0x55667788);
  61
  62         p32 = (const void *)&buff1234[0];
  63         fail_unless(RL32(&p32[0]) == 0x44332211);
  64         fail_unless(RL32(&p32[1]) == 0x88776655);
  65
  66         p16 = (const void *)&buff1234[0];
  67         fail_unless(RB16(p16++) == 0x1122);
  68         fail_unless(RB16(p16++) == 0x3344);
  69 }
  70 END_TEST
  71
  72 START_TEST(test_endian_read)
  73 {
  74         fail_unless(read_u8(&buff1234[0]) == 0x11);
  75         fail_unless(read_u8(&buff1234[3]) == 0x44);
  76         fail_unless(read_u8(&buff1234[7]) == 0x88);
  77
  78         fail_unless(read_u16be(&buff1234[0]) == 0x1122);
  79         fail_unless(read_u16be(&buff1234[6]) == 0x7788);
  80
  81         fail_unless(read_u16le(&buff1234[0]) == 0x2211);
  82         fail_unless(read_u16le(&buff1234[6]) == 0x8877);
  83
  84         fail_unless(read_i16be(&buff1234[6]) == 0x7788);
  85         fail_unless(read_i16le(&buff1234[6]) == (int16_t)0x8877);
  86
  87         fail_unless(read_u32be(&buff1234[0]) == 0x11223344);
  88         fail_unless(read_u32be(&buff1234[4]) == 0x55667788);
  89
  90         fail_unless(read_u32le(&buff1234[0]) == 0x44332211);
  91         fail_unless(read_u32le(&buff1234[4]) == 0x88776655);
  92
  93         fail_unless(read_i32be(&buff1234[0]) == 0x11223344);
  94         fail_unless(read_i32be(&buff1234[4]) == 0x55667788);
  95         fail_unless(read_i32le(&buff1234[4]) == (int32_t)0x88776655ull);
  96
  97         fail_unless(read_u64be(&buff1234[0]) == 0x1122334455667788ull);
  98         fail_unless(read_u64le(&buff1234[0]) == 0x8877665544332211ull);
  99         fail_unless(read_i64be(&buff1234[0]) == 0x1122334455667788ull);
 100         fail_unless(read_i64le(&buff1234[0]) == (int64_t)0x8877665544332211ull);
 101
 102         fail_unless(read_fltbe(&buff8125fb[0]) == 8.125);
 103         fail_unless(read_fltle(&buff8125fl[0]) == 8.125);
 104 }
 105 END_TEST
 106
 107 START_TEST(test_endian_read_inc)
 108 {
 109         const uint8_t *p;
 110
 111         p = &buff1234[0];
 112         fail_unless(read_u8_inc(&p) == 0x11);
 113         fail_unless(read_u8_inc(&p) == 0x22);
 114         fail_unless(read_u8_inc(&p) == 0x33);
 115         fail_unless(p == &buff1234[3 * sizeof(uint8_t)]);
 116
 117         p = &buff1234[0];
 118         fail_unless(read_u16be_inc(&p) == 0x1122);
 119         fail_unless(read_u16be_inc(&p) == 0x3344);
 120         fail_unless(p == &buff1234[2 * sizeof(uint16_t)]);
 121
 122         p = &buff1234[0];
 123         fail_unless(read_u16le_inc(&p) == 0x2211);
 124         fail_unless(read_u16le_inc(&p) == 0x4433);
 125         fail_unless(p == &buff1234[2 * sizeof(uint16_t)]);
 126
 127         p = &buff1234[0];
 128         fail_unless(read_u24le_inc(&p) == 0x332211);
 129         fail_unless(read_u24le_inc(&p) == 0x665544);
 130         fail_unless(p == &buff1234[2 * 3 * sizeof(uint8_t)]);
 131
 132         p = &buff1234[0];
 133         fail_unless(read_u32be_inc(&p) == 0x11223344ul);
 134         fail_unless(read_u32be_inc(&p) == 0x55667788ul);
 135         fail_unless(p == &buff1234[2 * sizeof(uint32_t)]);
 136
 137         p = &buff1234[0];
 138         fail_unless(read_u32le_inc(&p) == 0x44332211ul);
 139         fail_unless(read_u32le_inc(&p) == 0x88776655ul);
 140         fail_unless(p == &buff1234[2 * sizeof(uint32_t)]);
 141
 142         p = &buff1234[0];
 143         fail_unless(read_u64be_inc(&p) == 0x1122334455667788);
 144         fail_unless(p == &buff1234[sizeof(uint64_t)]);
 145
 146         p = &buff1234[0];
 147         fail_unless(read_u64le_inc(&p) == 0x8877665544332211ull);
 148         fail_unless(p == &buff1234[sizeof(uint64_t)]);
 149 }
 150 END_TEST
 151
 152 START_TEST(test_endian_write)
 153 {
 154         uint8_t buff[2 * sizeof(uint64_t)];
 155
 156         memset(buff, 0, sizeof(buff));
 157         write_u8(&buff[0], 0x11);
 158         fail_unless(memcmp(&buff[0], &buff1234[0], sizeof(uint8_t)) == 0);
 159
 160         memset(buff, 0, sizeof(buff));
 161         write_u8(&buff[0], 0x22);
 162         write_u8(&buff[1], 0x33);
 163         write_u8(&buff[2], 0x44);
 164         write_u8(&buff[3], 0x55);
 165         fail_unless(memcmp(&buff[0], &buff1234[1], 4 * sizeof(uint8_t)) == 0);
 166
 167         memset(buff, 0, sizeof(buff));
 168         write_u16be(&buff[0 * sizeof(uint16_t)], 0x1122);
 169         write_u16be(&buff[1 * sizeof(uint16_t)], 0x3344);
 170         fail_unless(memcmp(&buff[0], &buff1234[0], 2 * sizeof(uint16_t)) == 0);
 171
 172         memset(buff, 0, sizeof(buff));
 173         write_u16le(&buff[0 * sizeof(uint16_t)], 0x4433);
 174         write_u16le(&buff[1 * sizeof(uint16_t)], 0x6655);
 175         fail_unless(memcmp(&buff[0], &buff1234[2], 2 * sizeof(uint16_t)) == 0);
 176
 177         memset(buff, 0, sizeof(buff));
 178         write_u32be(&buff[0 * sizeof(uint32_t)], 0x11223344);
 179         write_u32be(&buff[1 * sizeof(uint32_t)], 0x55667788);
 180         fail_unless(memcmp(&buff[0], &buff1234[0], 2 * sizeof(uint32_t)) == 0);
 181
 182         memset(buff, 0, sizeof(buff));
 183         write_u32le(&buff[0 * sizeof(uint32_t)], 0x44332211);
 184         write_u32le(&buff[1 * sizeof(uint32_t)], 0x88776655);
 185         fail_unless(memcmp(&buff[0], &buff1234[0], 2 * sizeof(uint32_t)) == 0);
 186
 187         memset(buff, 0, sizeof(buff));
 188         write_fltbe(&buff[0], 8.125);
 189         fail_unless(memcmp(&buff[0], &buff8125fb[0], sizeof(float)) == 0);
 190
 191         memset(buff, 0, sizeof(buff));
 192         write_fltle(&buff[0], 8.125);
 193         fail_unless(memcmp(&buff[0], &buff8125fl[0], sizeof(float)) == 0);
 194 }
 195 END_TEST
 196
 197 START_TEST(test_endian_write_inc)
 198 {
 199         uint8_t buff[2 * sizeof(uint64_t)];
 200         uint8_t *p;
 201         size_t l;
 202
 203         memset(buff, 0, sizeof(buff));
 204         p = &buff[0];
 205         write_u8_inc(&p, 0x11);
 206         write_u16be_inc(&p, 0x2233);
 207         write_u32be_inc(&p, 0x44556677);
 208         l = p - &buff[0];
 209         fail_unless(l == sizeof(uint8_t) + sizeof(uint16_t) + sizeof(uint32_t));
 210         fail_unless(memcmp(&buff[0], &buff1234[0], l) == 0);
 211 }
 212 END_TEST
 213
 214 Suite *suite_conv(void)
 215 {
 216         Suite *s;
 217         TCase *tc;
 218
 219         s = suite_create("conv");
 220
 221         tc = tcase_create("endian");
 222         tcase_add_test(tc, test_endian_macro);
 223         tcase_add_test(tc, test_endian_read);
 224         tcase_add_test(tc, test_endian_read_inc);
 225         tcase_add_test(tc, test_endian_write);
 226         tcase_add_test(tc, test_endian_write_inc);
 227         suite_add_tcase(s, tc);
 228
 229         return s;
 230 }