test-u8-mbtouc.c		test-u8-mbtouc.c
	/* Test of u8_mbtouc() function.		/* Test of u8_mbtouc() function.
	Copyright (C) 2010 Free Software Foundation, Inc.		Copyright (C) 2010-2014 Free Software Foundation, Inc.
	This program is free software: you can redistribute it and/or modify		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		it under the terms of the GNU General Public License as published by
	the Free Software Foundation; either version 3 of the License, or		the Free Software Foundation; either version 3 of the License, or
	(at your option) any later version.		(at your option) any later version.
	This program is distributed in the hope that it will be useful,		This program is distributed in the hope that it will be useful,
	but WITHOUT ANY WARRANTY; without even the implied warranty of		but WITHOUT ANY WARRANTY; without even the implied warranty of
	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the		MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	GNU General Public License for more details.		GNU General Public License for more details.
	skipping to change at line 27		skipping to change at line 27
	/* Written by Bruno Haible <bruno@clisp.org>, 2010. */		/* Written by Bruno Haible <bruno@clisp.org>, 2010. */
	#include <config.h>		#include <config.h>
	#include "unistr.h"		#include "unistr.h"
	#include "macros.h"		#include "macros.h"
	#include "test-u8-mbtouc.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		int
	main ()		main ()
	{		{
	test_function (u8_mbtouc);		test_function (u8_mbtouc);
			test_safe_function (u8_mbtouc);
	return 0;		return 0;
	}		}
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