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/* Test of u8_mbtouc() function.
Copyright (C) 2010-2016 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 <http://www.gnu.org/licenses/>. */
/* Written by Bruno Haible <bruno@clisp.org>, 2010. */
#include <config.h>
#include "unistr.h"
#include "macros.h"
#include "test-u8-mbtouc.h"
static void
test_safe_function (int (*my_u8_mbtouc) (ucs4_t *, const uint8_t *, size_t))
{
ucs4_t uc;
int ret;
/* Test behaviour required by ISO 10646-1, sections R.7 and 2.3c, namely,
that a "malformed sequence" is interpreted in the same way as
"a character that is outside the adopted subset".
Reference:
Markus Kuhn: UTF-8 decoder capability and stress test
<http://www.cl.cam.ac.uk/~mgk25/ucs/examples/UTF-8-test.txt>
<http://www.w3.org/2001/06/utf-8-wrong/UTF-8-test.html>
*/
/* 3.1. Test that each unexpected continuation byte is signalled as a
malformed sequence of its own. */
{
static const uint8_t input[] = { '"', 0x80, 0xBF, 0x80, 0xBF, '"' };
uc = 0xBADFACE;
ret = my_u8_mbtouc (&uc, input, 6);
ASSERT (ret == 1);
ASSERT (uc == 0x0022);
uc = 0xBADFACE;
ret = my_u8_mbtouc (&uc, input + 1, 5);
ASSERT (ret == 1);
ASSERT (uc == 0xFFFD);
uc = 0xBADFACE;
ret = my_u8_mbtouc (&uc, input + 2, 4);
ASSERT (ret == 1);
ASSERT (uc == 0xFFFD);
uc = 0xBADFACE;
ret = my_u8_mbtouc (&uc, input + 3, 3);
ASSERT (ret == 1);
ASSERT (uc == 0xFFFD);
uc = 0xBADFACE;
ret = my_u8_mbtouc (&uc, input + 4, 2);
ASSERT (ret == 1);
ASSERT (uc == 0xFFFD);
uc = 0xBADFACE;
ret = my_u8_mbtouc (&uc, input + 5, 1);
ASSERT (ret == 1);
ASSERT (uc == 0x0022);
}
/* 3.2. Lonely start characters. */
{
ucs4_t c;
uint8_t input[2];
for (c = 0xC0; c <= 0xFF; c++)
{
input[0] = c;
input[1] = ' ';
uc = 0xBADFACE;
ret = my_u8_mbtouc (&uc, input, 2);
ASSERT (ret == 1);
ASSERT (uc == 0xFFFD);
}
}
/* 3.3. Sequences with last continuation byte missing. */
/* 3.3.1. 2-byte sequence with last byte missing. */
{
static const uint8_t input[] = { '"', 0xC0, '"' };
uc = 0xBADFACE;
ret = my_u8_mbtouc (&uc, input, 3);
ASSERT (ret == 1);
ASSERT (uc == 0x0022);
uc = 0xBADFACE;
ret = my_u8_mbtouc (&uc, input + 1, 2);
ASSERT (ret == 1);
ASSERT (uc == 0xFFFD);
uc = 0xBADFACE;
ret = my_u8_mbtouc (&uc, input + 2, 1);
ASSERT (ret == 1);
ASSERT (uc == 0x0022);
}
/* 3.3.6. 2-byte sequence with last byte missing. */
{
static const uint8_t input[] = { '"', 0xDF, '"' };
uc = 0xBADFACE;
ret = my_u8_mbtouc (&uc, input, 3);
ASSERT (ret == 1);
ASSERT (uc == 0x0022);
uc = 0xBADFACE;
ret = my_u8_mbtouc (&uc, input + 1, 2);
ASSERT (ret == 1);
ASSERT (uc == 0xFFFD);
uc = 0xBADFACE;
ret = my_u8_mbtouc (&uc, input + 2, 1);
ASSERT (ret == 1);
ASSERT (uc == 0x0022);
}
/* 3.3.2. 3-byte sequence with last byte missing. */
{
static const uint8_t input[] = { '"', 0xE0, 0x80, '"' };
uc = 0xBADFACE;
ret = my_u8_mbtouc (&uc, input, 4);
ASSERT (ret == 1);
ASSERT (uc == 0x0022);
uc = 0xBADFACE;
ret = my_u8_mbtouc (&uc, input + 1, 3);
ASSERT (ret == 2);
ASSERT (uc == 0xFFFD);
uc = 0xBADFACE;
ret = my_u8_mbtouc (&uc, input + 3, 1);
ASSERT (ret == 1);
ASSERT (uc == 0x0022);
}
/* 3.3.7. 3-byte sequence with last byte missing. */
{
static const uint8_t input[] = { '"', 0xEF, 0xBF, '"' };
uc = 0xBADFACE;
ret = my_u8_mbtouc (&uc, input, 4);
ASSERT (ret == 1);
ASSERT (uc == 0x0022);
uc = 0xBADFACE;
ret = my_u8_mbtouc (&uc, input + 1, 3);
ASSERT (ret == 2);
ASSERT (uc == 0xFFFD);
uc = 0xBADFACE;
ret = my_u8_mbtouc (&uc, input + 3, 1);
ASSERT (ret == 1);
ASSERT (uc == 0x0022);
}
/* 3.3.3. 4-byte sequence with last byte missing. */
{
static const uint8_t input[] = { '"', 0xF0, 0x80, 0x80, '"' };
uc = 0xBADFACE;
ret = my_u8_mbtouc (&uc, input, 5);
ASSERT (ret == 1);
ASSERT (uc == 0x0022);
uc = 0xBADFACE;
ret = my_u8_mbtouc (&uc, input + 1, 4);
ASSERT (ret == 3);
ASSERT (uc == 0xFFFD);
uc = 0xBADFACE;
ret = my_u8_mbtouc (&uc, input + 4, 1);
ASSERT (ret == 1);
ASSERT (uc == 0x0022);
}
/* 3.3.8. 4-byte sequence with last byte missing. */
{
static const uint8_t input[] = { '"', 0xF7, 0xBF, 0xBF, '"' };
uc = 0xBADFACE;
ret = my_u8_mbtouc (&uc, input, 5);
ASSERT (ret == 1);
ASSERT (uc == 0x0022);
uc = 0xBADFACE;
ret = my_u8_mbtouc (&uc, input + 1, 4);
ASSERT (ret == 3);
ASSERT (uc == 0xFFFD);
uc = 0xBADFACE;
ret = my_u8_mbtouc (&uc, input + 4, 1);
ASSERT (ret == 1);
ASSERT (uc == 0x0022);
}
}
int
main ()
{
test_function (u8_mbtouc);
test_safe_function (u8_mbtouc);
return 0;
}
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