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+/* Test of u8_uctomb() function.
+ Copyright (C) 2010 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"
+
+#define MAGIC 0xBA
+
+int
+main ()
+{
+ /* Test ISO 646 character, in particular the NUL character. */
+ {
+ ucs4_t uc;
+
+ for (uc = 0; uc < 0x80; uc++)
+ {
+ uint8_t buf[5] = { MAGIC, MAGIC, MAGIC, MAGIC, MAGIC };
+ int ret;
+
+ ret = u8_uctomb (buf, uc, 0);
+ ASSERT (ret == -2);
+ ASSERT (buf[0] == MAGIC);
+
+ ret = u8_uctomb (buf, uc, 1);
+ ASSERT (ret == 1);
+ ASSERT (buf[0] == uc);
+ ASSERT (buf[1] == MAGIC);
+ }
+ }
+
+ /* Test 2-byte character. */
+ {
+ ucs4_t uc = 0x00D7;
+ uint8_t buf[5] = { MAGIC, MAGIC, MAGIC, MAGIC, MAGIC };
+ int ret;
+
+ ret = u8_uctomb (buf, uc, 0);
+ ASSERT (ret == -2);
+ ASSERT (buf[0] == MAGIC);
+
+ ret = u8_uctomb (buf, uc, 1);
+ ASSERT (ret == -2);
+ ASSERT (buf[0] == MAGIC);
+
+ ret = u8_uctomb (buf, uc, 2);
+ ASSERT (ret == 2);
+ ASSERT (buf[0] == 0xC3);
+ ASSERT (buf[1] == 0x97);
+ ASSERT (buf[2] == MAGIC);
+ }
+
+ /* Test 3-byte character. */
+ {
+ ucs4_t uc = 0x20AC;
+ uint8_t buf[5] = { MAGIC, MAGIC, MAGIC, MAGIC, MAGIC };
+ int ret;
+
+ ret = u8_uctomb (buf, uc, 0);
+ ASSERT (ret == -2);
+ ASSERT (buf[0] == MAGIC);
+
+ ret = u8_uctomb (buf, uc, 1);
+ ASSERT (ret == -2);
+ ASSERT (buf[0] == MAGIC);
+
+ ret = u8_uctomb (buf, uc, 2);
+ ASSERT (ret == -2);
+ ASSERT (buf[0] == MAGIC);
+ ASSERT (buf[1] == MAGIC);
+
+ ret = u8_uctomb (buf, uc, 3);
+ ASSERT (ret == 3);
+ ASSERT (buf[0] == 0xE2);
+ ASSERT (buf[1] == 0x82);
+ ASSERT (buf[2] == 0xAC);
+ ASSERT (buf[3] == MAGIC);
+ }
+
+ /* Test 4-byte character. */
+ {
+ ucs4_t uc = 0x10FFFD;
+ uint8_t buf[5] = { MAGIC, MAGIC, MAGIC, MAGIC, MAGIC };
+ int ret;
+
+ ret = u8_uctomb (buf, uc, 0);
+ ASSERT (ret == -2);
+ ASSERT (buf[0] == MAGIC);
+
+ ret = u8_uctomb (buf, uc, 1);
+ ASSERT (ret == -2);
+ ASSERT (buf[0] == MAGIC);
+
+ ret = u8_uctomb (buf, uc, 2);
+ ASSERT (ret == -2);
+ ASSERT (buf[0] == MAGIC);
+ ASSERT (buf[1] == MAGIC);
+
+ ret = u8_uctomb (buf, uc, 3);
+ ASSERT (ret == -2);
+ ASSERT (buf[0] == MAGIC);
+ ASSERT (buf[1] == MAGIC);
+ ASSERT (buf[2] == MAGIC);
+
+ ret = u8_uctomb (buf, uc, 4);
+ ASSERT (ret == 4);
+ ASSERT (buf[0] == 0xF4);
+ ASSERT (buf[1] == 0x8F);
+ ASSERT (buf[2] == 0xBF);
+ ASSERT (buf[3] == 0xBD);
+ ASSERT (buf[4] == MAGIC);
+ }
+
+ /* Test invalid characters. */
+ {
+ ucs4_t invalid[] = { 0x110000, 0xD800, 0xDBFF, 0xDC00, 0xDFFF };
+ uint8_t buf[5] = { MAGIC, MAGIC, MAGIC, MAGIC, MAGIC };
+ size_t i;
+
+ for (i = 0; i < SIZEOF (invalid); i++)
+ {
+ ucs4_t uc = invalid[i];
+ int n;
+
+ for (n = 0; n <= 4; n++)
+ {
+ int ret = u8_uctomb (buf, uc, n);
+ ASSERT (ret == -1);
+ ASSERT (buf[0] == MAGIC);
+ ASSERT (buf[1] == MAGIC);
+ ASSERT (buf[2] == MAGIC);
+ ASSERT (buf[3] == MAGIC);
+ ASSERT (buf[4] == MAGIC);
+ }
+ }
+ }
+
+ return 0;
+}