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-rw-r--r--tests/test-c32rtomb.c174
1 files changed, 174 insertions, 0 deletions
diff --git a/tests/test-c32rtomb.c b/tests/test-c32rtomb.c
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+/* Test of conversion of wide character to multibyte character.
+ Copyright (C) 2008-2024 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>, 2008. */
+
+#include <config.h>
+
+#include <uchar.h>
+
+#include "signature.h"
+SIGNATURE_CHECK (c32rtomb, size_t, (char *, char32_t, mbstate_t *));
+
+#include <locale.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "macros.h"
+
+/* Check the multibyte character s[0..n-1]. */
+static void
+check_character (const char *s, size_t n)
+{
+ mbstate_t state;
+ char32_t wc;
+ char buf[64];
+ int iret;
+ size_t ret;
+
+ memset (&state, '\0', sizeof (mbstate_t));
+ wc = (char32_t) 0xBADFACE;
+ iret = mbrtoc32 (&wc, s, n, &state);
+ ASSERT (iret == n);
+
+ ret = c32rtomb (buf, wc, NULL);
+ ASSERT (ret == n);
+ ASSERT (memcmp (buf, s, n) == 0);
+
+ /* Test special calling convention, passing a NULL pointer. */
+ ret = c32rtomb (NULL, wc, NULL);
+ ASSERT (ret == 1);
+}
+
+int
+main (int argc, char *argv[])
+{
+ char buf[64];
+ size_t ret;
+
+ /* configure should already have checked that the locale is supported. */
+ if (setlocale (LC_ALL, "") == NULL)
+ return 1;
+
+ /* Test NUL character. */
+ {
+ buf[0] = 'x';
+ ret = c32rtomb (buf, 0, NULL);
+ ASSERT (ret == 1);
+ ASSERT (buf[0] == '\0');
+ }
+
+ /* Test single bytes. */
+ {
+ int c;
+
+ for (c = 0; c < 0x100; c++)
+ switch (c)
+ {
+ case '\t': case '\v': case '\f':
+ case ' ': case '!': case '"': case '#': case '%':
+ case '&': case '\'': case '(': case ')': case '*':
+ case '+': case ',': case '-': case '.': case '/':
+ case '0': case '1': case '2': case '3': case '4':
+ case '5': case '6': case '7': case '8': case '9':
+ case ':': case ';': case '<': case '=': case '>':
+ case '?':
+ case 'A': case 'B': case 'C': case 'D': case 'E':
+ case 'F': case 'G': case 'H': case 'I': case 'J':
+ case 'K': case 'L': case 'M': case 'N': case 'O':
+ case 'P': case 'Q': case 'R': case 'S': case 'T':
+ case 'U': case 'V': case 'W': case 'X': case 'Y':
+ case 'Z':
+ case '[': case '\\': case ']': case '^': case '_':
+ case 'a': case 'b': case 'c': case 'd': case 'e':
+ case 'f': case 'g': case 'h': case 'i': case 'j':
+ case 'k': case 'l': case 'm': case 'n': case 'o':
+ case 'p': case 'q': case 'r': case 's': case 't':
+ case 'u': case 'v': case 'w': case 'x': case 'y':
+ case 'z': case '{': case '|': case '}': case '~':
+ /* c is in the ISO C "basic character set". */
+ ret = c32rtomb (buf, btoc32 (c), NULL);
+ ASSERT (ret == 1);
+ ASSERT (buf[0] == (char) c);
+ break;
+ }
+ }
+
+ /* Test special calling convention, passing a NULL pointer. */
+ {
+ ret = c32rtomb (NULL, '\0', NULL);
+ ASSERT (ret == 1);
+ ret = c32rtomb (NULL, btoc32 ('x'), NULL);
+ ASSERT (ret == 1);
+ }
+
+ if (argc > 1)
+ switch (argv[1][0])
+ {
+ case '1':
+ /* C locale; tested above. */
+ return 0;
+
+ case '2':
+ /* Locale encoding is ISO-8859-1 or ISO-8859-15. */
+ {
+ const char input[] = "B\374\337er"; /* "Büßer" */
+
+ check_character (input + 1, 1);
+ check_character (input + 2, 1);
+ }
+ return 0;
+
+ case '3':
+ /* Locale encoding is UTF-8. */
+ {
+ const char input[] = "s\303\274\303\237\360\237\230\213!"; /* "süß😋!" */
+
+ check_character (input + 1, 2);
+ check_character (input + 3, 2);
+ check_character (input + 5, 4);
+ }
+ return 0;
+
+ case '4':
+ /* Locale encoding is EUC-JP. */
+ {
+ const char input[] = "<\306\374\313\334\270\354>"; /* "<日本語>" */
+
+ check_character (input + 1, 2);
+ check_character (input + 3, 2);
+ check_character (input + 5, 2);
+ }
+ return 0;
+
+ case '5':
+ /* Locale encoding is GB18030. */
+ #if (defined __GLIBC__ && __GLIBC__ == 2 && __GLIBC_MINOR__ >= 13 && __GLIBC_MINOR__ <= 15) || (GL_CHAR32_T_IS_UNICODE && (defined __FreeBSD__ || defined __NetBSD__ || defined __sun))
+ fputs ("Skipping test: The GB18030 converter in this system's iconv is broken.\n", stderr);
+ return 77;
+ #endif
+ {
+ const char input[] = "s\250\271\201\060\211\070\224\071\375\067!"; /* "süß😋!" */
+
+ check_character (input + 1, 2);
+ check_character (input + 3, 4);
+ check_character (input + 7, 4);
+ }
+ return 0;
+ }
+
+ return 1;
+}