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/* Test of u8_next() function.
Copyright (C) 2010-2024 Free Software Foundation, Inc.
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <https://www.gnu.org/licenses/>. */
/* Written by Bruno Haible <bruno@clisp.org>, 2010. */
#include <config.h>
#include "unistr.h"
#include "macros.h"
int
main ()
{
ucs4_t uc;
const uint8_t *ret;
/* Test NUL unit input. */
{
static const uint8_t input[] = "";
uc = 0xBADFACE;
ret = u8_next (&uc, input);
ASSERT (ret == NULL);
ASSERT (uc == 0);
}
/* Test ISO 646 unit input. */
{
ucs4_t c;
uint8_t buf[2];
for (c = 1; c < 0x80; c++)
{
buf[0] = c;
buf[1] = 0;
uc = 0xBADFACE;
ret = u8_next (&uc, buf);
ASSERT (ret == buf + 1);
ASSERT (uc == c);
}
}
/* Test 2-byte character input. */
{
static const uint8_t input[] = { 0xC3, 0x97, 0 };
uc = 0xBADFACE;
ret = u8_next (&uc, input);
ASSERT (ret == input + 2);
ASSERT (uc == 0x00D7);
}
/* Test 3-byte character input. */
{
static const uint8_t input[] = { 0xE2, 0x82, 0xAC, 0 };
uc = 0xBADFACE;
ret = u8_next (&uc, input);
ASSERT (ret == input + 3);
ASSERT (uc == 0x20AC);
}
/* Test 4-byte character input. */
{
static const uint8_t input[] = { 0xF4, 0x8F, 0xBF, 0xBD, 0 };
uc = 0xBADFACE;
ret = u8_next (&uc, input);
ASSERT (ret == input + 4);
ASSERT (uc == 0x10FFFD);
}
/* Test incomplete/invalid 1-byte input. */
{
static const uint8_t input[] = { 0xC1, 0 };
uc = 0xBADFACE;
ret = u8_next (&uc, input);
ASSERT (ret == NULL);
ASSERT (uc == 0xFFFD);
}
{
static const uint8_t input[] = { 0xC3, 0 };
uc = 0xBADFACE;
ret = u8_next (&uc, input);
ASSERT (ret == NULL);
ASSERT (uc == 0xFFFD);
}
{
static const uint8_t input[] = { 0xE2, 0 };
uc = 0xBADFACE;
ret = u8_next (&uc, input);
ASSERT (ret == NULL);
ASSERT (uc == 0xFFFD);
}
{
static const uint8_t input[] = { 0xF4, 0 };
uc = 0xBADFACE;
ret = u8_next (&uc, input);
ASSERT (ret == NULL);
ASSERT (uc == 0xFFFD);
}
{
static const uint8_t input[] = { 0xFE, 0 };
uc = 0xBADFACE;
ret = u8_next (&uc, input);
ASSERT (ret == NULL);
ASSERT (uc == 0xFFFD);
}
/* Test incomplete/invalid 2-byte input. */
{
static const uint8_t input[] = { 0xE0, 0x9F, 0 };
uc = 0xBADFACE;
ret = u8_next (&uc, input);
ASSERT (ret == NULL);
ASSERT (uc == 0xFFFD);
}
{
static const uint8_t input[] = { 0xE2, 0x82, 0 };
uc = 0xBADFACE;
ret = u8_next (&uc, input);
ASSERT (ret == NULL);
ASSERT (uc == 0xFFFD);
}
{
static const uint8_t input[] = { 0xE2, 0xD0, 0 };
uc = 0xBADFACE;
ret = u8_next (&uc, input);
ASSERT (ret == NULL);
ASSERT (uc == 0xFFFD);
}
{
static const uint8_t input[] = { 0xF0, 0x8F, 0 };
uc = 0xBADFACE;
ret = u8_next (&uc, input);
ASSERT (ret == NULL);
ASSERT (uc == 0xFFFD);
}
{
static const uint8_t input[] = { 0xF3, 0x8F, 0 };
uc = 0xBADFACE;
ret = u8_next (&uc, input);
ASSERT (ret == NULL);
ASSERT (uc == 0xFFFD);
}
{
static const uint8_t input[] = { 0xF3, 0xD0, 0 };
uc = 0xBADFACE;
ret = u8_next (&uc, input);
ASSERT (ret == NULL);
ASSERT (uc == 0xFFFD);
}
/* Test incomplete/invalid 3-byte input. */
{
static const uint8_t input[] = { 0xF3, 0x8F, 0xBF, 0 };
uc = 0xBADFACE;
ret = u8_next (&uc, input);
ASSERT (ret == NULL);
ASSERT (uc == 0xFFFD);
}
{
static const uint8_t input[] = { 0xF3, 0xD0, 0xBF, 0 };
uc = 0xBADFACE;
ret = u8_next (&uc, input);
ASSERT (ret == NULL);
ASSERT (uc == 0xFFFD);
}
{
static const uint8_t input[] = { 0xF3, 0x8F, 0xD0, 0 };
uc = 0xBADFACE;
ret = u8_next (&uc, input);
ASSERT (ret == NULL);
ASSERT (uc == 0xFFFD);
}
return 0;
}
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