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-rw-r--r--tests/test-c32tolower.c440
1 files changed, 440 insertions, 0 deletions
diff --git a/tests/test-c32tolower.c b/tests/test-c32tolower.c
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+/* Test of c32tolower() function.
+ Copyright (C) 2020-2024 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/>. */
+
+#include <config.h>
+
+#include <uchar.h>
+
+#include "signature.h"
+SIGNATURE_CHECK (c32tolower, wint_t, (wint_t));
+
+#include <locale.h>
+#include <stdlib.h>
+#include <string.h>
+#include <wchar.h>
+
+#include "macros.h"
+
+/* Representation of a multibyte character. */
+#define MBCHAR_BUF_SIZE 6
+struct multibyte
+{
+ size_t nbytes; /* number of bytes of current character, > 0 */
+ char buf[MBCHAR_BUF_SIZE]; /* room for the bytes */
+};
+
+/* Returns the value of c32tolower for the multibyte character s[0..n-1],
+ as a multibyte character. */
+static struct multibyte
+for_character (const char *s, size_t n)
+{
+ mbstate_t state;
+ char32_t wc;
+ size_t ret;
+ struct multibyte result;
+
+ memset (&state, '\0', sizeof (mbstate_t));
+ wc = (char32_t) 0xBADFACE;
+ ret = mbrtoc32 (&wc, s, n, &state);
+ ASSERT (ret == n);
+
+ wc = c32tolower (wc);
+ ASSERT (wc != WEOF);
+
+ memset (&state, '\0', sizeof (mbstate_t));
+ ret = c32rtomb (result.buf, wc, &state);
+ ASSERT (ret != 0);
+ if (ret == (size_t)(-1))
+ /* wc cannot be converted back to multibyte. */
+ result.nbytes = 0;
+ else
+ {
+ ASSERT (ret <= MBCHAR_BUF_SIZE);
+ result.nbytes = ret;
+ }
+ return result;
+}
+
+int
+main (int argc, char *argv[])
+{
+ wint_t wc;
+ struct multibyte mb;
+ char buf[4];
+
+ /* configure should already have checked that the locale is supported. */
+ if (setlocale (LC_ALL, "") == NULL)
+ return 1;
+
+ /* Test WEOF. */
+ wc = c32tolower (WEOF);
+ ASSERT (wc == WEOF);
+
+ /* Test single-byte characters.
+ POSIX specifies in
+ <https://pubs.opengroup.org/onlinepubs/9699919799/basedefs/V1_chap07.html>
+ that
+ - in all locales, the uppercase characters include the A ... Z
+ characters, and the corresponding characters a ... z (if not in a
+ Turkish locale) are lowercase,
+ - in the "POSIX" locale (which is usually the same as the "C" locale),
+ the uppercase characters include only the ASCII A ... Z characters,
+ and the corresponding characters a ... z are lowercase.
+ */
+#if defined __NetBSD__
+ /* towlower is broken in the zh_CN.GB18030 locale on NetBSD 9.0.
+ See <https://gnats.netbsd.org/cgi-bin/query-pr-single.pl?number=57339>. */
+ if (!(argc > 1 && argv[1][0] == '4'))
+#endif
+ {
+ 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". */
+ buf[0] = (unsigned char) c;
+ mb = for_character (buf, 1);
+ switch (c)
+ {
+ 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':
+ ASSERT (mb.nbytes == 1);
+ ASSERT ((unsigned char) mb.buf[0] == (unsigned char) c - 'A' + 'a');
+ break;
+ default:
+ ASSERT (mb.nbytes == 1);
+ ASSERT ((unsigned char) mb.buf[0] == c);
+ break;
+ }
+ break;
+ }
+ }
+
+ if (argc > 1)
+ switch (argv[1][0])
+ {
+ case '0':
+ /* C locale; tested above. */
+ return 0;
+
+ case '1':
+ /* Locale encoding is ISO-8859-1 or ISO-8859-15. */
+ {
+ /* U+00B2 SUPERSCRIPT TWO */
+ mb = for_character ("\262", 1);
+ ASSERT (mb.nbytes == 1);
+ ASSERT (memcmp (mb.buf, "\262", 1) == 0);
+ /* U+00B5 MICRO SIGN */
+ mb = for_character ("\265", 1);
+ ASSERT (mb.nbytes == 1);
+ ASSERT (memcmp (mb.buf, "\265", 1) == 0);
+ /* U+00C9 LATIN CAPITAL LETTER E WITH ACUTE */
+ mb = for_character ("\311", 1);
+ ASSERT (mb.nbytes == 1);
+ ASSERT (memcmp (mb.buf, "\351", 1) == 0);
+ /* U+00DF LATIN SMALL LETTER SHARP S */
+ mb = for_character ("\337", 1);
+ ASSERT (mb.nbytes == 1);
+ ASSERT (memcmp (mb.buf, "\337", 1) == 0);
+ /* U+00E9 LATIN SMALL LETTER E WITH ACUTE */
+ mb = for_character ("\351", 1);
+ ASSERT (mb.nbytes == 1);
+ ASSERT (memcmp (mb.buf, "\351", 1) == 0);
+ /* U+00FF LATIN SMALL LETTER Y WITH DIAERESIS */
+ mb = for_character ("\377", 1);
+ ASSERT (mb.nbytes == 1);
+ ASSERT (memcmp (mb.buf, "\377", 1) == 0);
+ }
+ return 0;
+
+ case '2':
+ /* Locale encoding is EUC-JP. */
+ {
+ #if !((defined __APPLE__ && defined __MACH__) || defined __DragonFly__)
+ /* U+00C9 LATIN CAPITAL LETTER E WITH ACUTE */
+ mb = for_character ("\217\252\261", 3);
+ ASSERT (mb.nbytes == 3);
+ ASSERT (memcmp (mb.buf, "\217\253\261", 3) == 0);
+ #endif
+ /* U+00DF LATIN SMALL LETTER SHARP S */
+ mb = for_character ("\217\251\316", 3);
+ ASSERT (mb.nbytes == 3);
+ ASSERT (memcmp (mb.buf, "\217\251\316", 3) == 0);
+ /* U+00E9 LATIN SMALL LETTER E WITH ACUTE */
+ mb = for_character ("\217\253\261", 3);
+ ASSERT (mb.nbytes == 3);
+ ASSERT (memcmp (mb.buf, "\217\253\261", 3) == 0);
+ /* U+00FF LATIN SMALL LETTER Y WITH DIAERESIS */
+ mb = for_character ("\217\253\363", 3);
+ ASSERT (mb.nbytes == 3);
+ ASSERT (memcmp (mb.buf, "\217\253\363", 3) == 0);
+ #if !((defined __APPLE__ && defined __MACH__) || defined __DragonFly__)
+ /* U+0141 LATIN CAPITAL LETTER L WITH STROKE */
+ mb = for_character ("\217\251\250", 3);
+ ASSERT (mb.nbytes == 3);
+ ASSERT (memcmp (mb.buf, "\217\251\310", 3) == 0);
+ #endif
+ /* U+0142 LATIN SMALL LETTER L WITH STROKE */
+ mb = for_character ("\217\251\310", 3);
+ ASSERT (mb.nbytes == 3);
+ ASSERT (memcmp (mb.buf, "\217\251\310", 3) == 0);
+ #if !defined __DragonFly__
+ /* U+0429 CYRILLIC CAPITAL LETTER SHCHA */
+ mb = for_character ("\247\273", 2);
+ ASSERT (mb.nbytes == 2);
+ ASSERT (memcmp (mb.buf, "\247\353", 2) == 0);
+ #endif
+ /* U+0449 CYRILLIC SMALL LETTER SHCHA */
+ mb = for_character ("\247\353", 2);
+ ASSERT (mb.nbytes == 2);
+ ASSERT (memcmp (mb.buf, "\247\353", 2) == 0);
+ /* U+3073 HIRAGANA LETTER BI */
+ mb = for_character ("\244\323", 2);
+ ASSERT (mb.nbytes == 2);
+ ASSERT (memcmp (mb.buf, "\244\323", 2) == 0);
+ #if !defined __DragonFly__
+ /* U+FF27 FULLWIDTH LATIN CAPITAL LETTER G */
+ mb = for_character ("\243\307", 2);
+ ASSERT (mb.nbytes == 2);
+ ASSERT (memcmp (mb.buf, "\243\347", 2) == 0);
+ #endif
+ /* U+FF47 FULLWIDTH LATIN SMALL LETTER G */
+ mb = for_character ("\243\347", 2);
+ ASSERT (mb.nbytes == 2);
+ ASSERT (memcmp (mb.buf, "\243\347", 2) == 0);
+ }
+ return 0;
+
+ case '3':
+ /* Locale encoding is UTF-8. */
+ {
+ /* U+00B2 SUPERSCRIPT TWO */
+ mb = for_character ("\302\262", 2);
+ ASSERT (mb.nbytes == 2);
+ ASSERT (memcmp (mb.buf, "\302\262", 2) == 0);
+ /* U+00B5 MICRO SIGN */
+ mb = for_character ("\302\265", 2);
+ ASSERT (mb.nbytes == 2);
+ ASSERT (memcmp (mb.buf, "\302\265", 2) == 0);
+ #if !(defined _WIN32 && !defined __CYGWIN__)
+ /* U+00C9 LATIN CAPITAL LETTER E WITH ACUTE */
+ mb = for_character ("\303\211", 2);
+ ASSERT (mb.nbytes == 2);
+ ASSERT (memcmp (mb.buf, "\303\251", 2) == 0);
+ #endif
+ /* U+00DF LATIN SMALL LETTER SHARP S */
+ mb = for_character ("\303\237", 2);
+ ASSERT (mb.nbytes == 2);
+ ASSERT (memcmp (mb.buf, "\303\237", 2) == 0);
+ /* U+00E9 LATIN SMALL LETTER E WITH ACUTE */
+ mb = for_character ("\303\251", 2);
+ ASSERT (mb.nbytes == 2);
+ ASSERT (memcmp (mb.buf, "\303\251", 2) == 0);
+ /* U+00FF LATIN SMALL LETTER Y WITH DIAERESIS */
+ mb = for_character ("\303\277", 2);
+ ASSERT (mb.nbytes == 2);
+ ASSERT (memcmp (mb.buf, "\303\277", 2) == 0);
+ /* U+0141 LATIN CAPITAL LETTER L WITH STROKE */
+ mb = for_character ("\305\201", 2);
+ ASSERT (mb.nbytes == 2);
+ ASSERT (memcmp (mb.buf, "\305\202", 2) == 0);
+ /* U+0142 LATIN SMALL LETTER L WITH STROKE */
+ mb = for_character ("\305\202", 2);
+ ASSERT (mb.nbytes == 2);
+ ASSERT (memcmp (mb.buf, "\305\202", 2) == 0);
+ /* U+0429 CYRILLIC CAPITAL LETTER SHCHA */
+ mb = for_character ("\320\251", 2);
+ ASSERT (mb.nbytes == 2);
+ ASSERT (memcmp (mb.buf, "\321\211", 2) == 0);
+ /* U+0449 CYRILLIC SMALL LETTER SHCHA */
+ mb = for_character ("\321\211", 2);
+ ASSERT (mb.nbytes == 2);
+ ASSERT (memcmp (mb.buf, "\321\211", 2) == 0);
+ /* U+05D5 HEBREW LETTER VAV */
+ mb = for_character ("\327\225", 2);
+ ASSERT (mb.nbytes == 2);
+ ASSERT (memcmp (mb.buf, "\327\225", 2) == 0);
+ /* U+3073 HIRAGANA LETTER BI */
+ mb = for_character ("\343\201\263", 3);
+ ASSERT (mb.nbytes == 3);
+ ASSERT (memcmp (mb.buf, "\343\201\263", 3) == 0);
+ /* U+3162 HANGUL LETTER YI */
+ mb = for_character ("\343\205\242", 3);
+ ASSERT (mb.nbytes == 3);
+ ASSERT (memcmp (mb.buf, "\343\205\242", 3) == 0);
+ /* U+FF27 FULLWIDTH LATIN CAPITAL LETTER G */
+ mb = for_character ("\357\274\247", 3);
+ ASSERT (mb.nbytes == 3);
+ ASSERT (memcmp (mb.buf, "\357\275\207", 3) == 0);
+ /* U+FF47 FULLWIDTH LATIN SMALL LETTER G */
+ mb = for_character ("\357\275\207", 3);
+ ASSERT (mb.nbytes == 3);
+ ASSERT (memcmp (mb.buf, "\357\275\207", 3) == 0);
+ /* U+FFDB HALFWIDTH HANGUL LETTER YI */
+ mb = for_character ("\357\277\233", 3);
+ ASSERT (mb.nbytes == 3);
+ ASSERT (memcmp (mb.buf, "\357\277\233", 3) == 0);
+ #if !(defined __DragonFly__ || defined __sun)
+ /* U+10419 DESERET CAPITAL LETTER EF */
+ mb = for_character ("\360\220\220\231", 4);
+ ASSERT (mb.nbytes == 4);
+ ASSERT (memcmp (mb.buf, "\360\220\221\201", 4) == 0);
+ #endif
+ /* U+10441 DESERET SMALL LETTER EF */
+ mb = for_character ("\360\220\221\201", 4);
+ ASSERT (mb.nbytes == 4);
+ ASSERT (memcmp (mb.buf, "\360\220\221\201", 4) == 0);
+ /* U+E0041 TAG LATIN CAPITAL LETTER A */
+ mb = for_character ("\363\240\201\201", 4);
+ ASSERT (mb.nbytes == 4);
+ ASSERT (memcmp (mb.buf, "\363\240\201\201", 4) == 0);
+ /* U+E0061 TAG LATIN SMALL LETTER A */
+ mb = for_character ("\363\240\201\241", 4);
+ ASSERT (mb.nbytes == 4);
+ ASSERT (memcmp (mb.buf, "\363\240\201\241", 4) == 0);
+ }
+ return 0;
+
+ case '4':
+ /* 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
+ {
+ /* U+00B2 SUPERSCRIPT TWO */
+ mb = for_character ("\201\060\205\065", 4);
+ ASSERT (mb.nbytes == 4);
+ ASSERT (memcmp (mb.buf, "\201\060\205\065", 4) == 0);
+ /* U+00B5 MICRO SIGN */
+ mb = for_character ("\201\060\205\070", 4);
+ ASSERT (mb.nbytes == 4);
+ ASSERT (memcmp (mb.buf, "\201\060\205\070", 4) == 0);
+ #if !(defined __FreeBSD__ || defined __DragonFly__ || defined __sun)
+ /* U+00C9 LATIN CAPITAL LETTER E WITH ACUTE */
+ mb = for_character ("\201\060\207\067", 4);
+ ASSERT (mb.nbytes == 2);
+ ASSERT (memcmp (mb.buf, "\250\246", 2) == 0);
+ #endif
+ /* U+00DF LATIN SMALL LETTER SHARP S */
+ mb = for_character ("\201\060\211\070", 4);
+ ASSERT (mb.nbytes == 4);
+ ASSERT (memcmp (mb.buf, "\201\060\211\070", 4) == 0);
+ /* U+00E9 LATIN SMALL LETTER E WITH ACUTE */
+ mb = for_character ("\250\246", 2);
+ ASSERT (mb.nbytes == 2);
+ ASSERT (memcmp (mb.buf, "\250\246", 2) == 0);
+ /* U+00FF LATIN SMALL LETTER Y WITH DIAERESIS */
+ mb = for_character ("\201\060\213\067", 4);
+ ASSERT (mb.nbytes == 4);
+ ASSERT (memcmp (mb.buf, "\201\060\213\067", 4) == 0);
+ #if !(defined __FreeBSD__ || defined __DragonFly__ || defined __sun)
+ /* U+0141 LATIN CAPITAL LETTER L WITH STROKE */
+ mb = for_character ("\201\060\221\071", 4);
+ ASSERT (mb.nbytes == 4);
+ ASSERT (memcmp (mb.buf, "\201\060\222\060", 4) == 0);
+ #endif
+ /* U+0142 LATIN SMALL LETTER L WITH STROKE */
+ mb = for_character ("\201\060\222\060", 4);
+ ASSERT (mb.nbytes == 4);
+ ASSERT (memcmp (mb.buf, "\201\060\222\060", 4) == 0);
+ #if !(defined __FreeBSD__ || defined __DragonFly__)
+ /* U+0429 CYRILLIC CAPITAL LETTER SHCHA */
+ mb = for_character ("\247\273", 2);
+ ASSERT (mb.nbytes == 2);
+ ASSERT (memcmp (mb.buf, "\247\353", 2) == 0);
+ #endif
+ /* U+0449 CYRILLIC SMALL LETTER SHCHA */
+ mb = for_character ("\247\353", 2);
+ ASSERT (mb.nbytes == 2);
+ ASSERT (memcmp (mb.buf, "\247\353", 2) == 0);
+ /* U+05D5 HEBREW LETTER VAV */
+ mb = for_character ("\201\060\371\067", 4);
+ ASSERT (mb.nbytes == 4);
+ ASSERT (memcmp (mb.buf, "\201\060\371\067", 4) == 0);
+ /* U+3073 HIRAGANA LETTER BI */
+ mb = for_character ("\244\323", 2);
+ ASSERT (mb.nbytes == 2);
+ ASSERT (memcmp (mb.buf, "\244\323", 2) == 0);
+ /* U+3162 HANGUL LETTER YI */
+ mb = for_character ("\201\071\256\062", 4);
+ ASSERT (mb.nbytes == 4);
+ ASSERT (memcmp (mb.buf, "\201\071\256\062", 4) == 0);
+ #if !defined __DragonFly__
+ /* U+FF27 FULLWIDTH LATIN CAPITAL LETTER G */
+ mb = for_character ("\243\307", 2);
+ ASSERT (mb.nbytes == 2);
+ ASSERT (memcmp (mb.buf, "\243\347", 2) == 0);
+ #endif
+ /* U+FF47 FULLWIDTH LATIN SMALL LETTER G */
+ mb = for_character ("\243\347", 2);
+ ASSERT (mb.nbytes == 2);
+ ASSERT (memcmp (mb.buf, "\243\347", 2) == 0);
+ /* U+FFDB HALFWIDTH HANGUL LETTER YI */
+ mb = for_character ("\204\061\241\071", 4);
+ ASSERT (mb.nbytes == 4);
+ ASSERT (memcmp (mb.buf, "\204\061\241\071", 4) == 0);
+ #if !((defined __APPLE__ && defined __MACH__) || defined __FreeBSD__ || defined __DragonFly__ || defined __NetBSD__ || defined __sun)
+ /* U+10419 DESERET CAPITAL LETTER EF */
+ mb = for_character ("\220\060\351\071", 4);
+ ASSERT (mb.nbytes == 4);
+ ASSERT (memcmp (mb.buf, "\220\060\355\071", 4) == 0);
+ #endif
+ /* U+10441 DESERET SMALL LETTER EF */
+ mb = for_character ("\220\060\355\071", 4);
+ ASSERT (mb.nbytes == 4);
+ ASSERT (memcmp (mb.buf, "\220\060\355\071", 4) == 0);
+ /* U+E0041 TAG LATIN CAPITAL LETTER A */
+ mb = for_character ("\323\066\234\063", 4);
+ ASSERT (mb.nbytes == 4);
+ ASSERT (memcmp (mb.buf, "\323\066\234\063", 4) == 0);
+ /* U+E0061 TAG LATIN SMALL LETTER A */
+ mb = for_character ("\323\066\237\065", 4);
+ ASSERT (mb.nbytes == 4);
+ ASSERT (memcmp (mb.buf, "\323\066\237\065", 4) == 0);
+ }
+ return 0;
+
+ }
+
+ return 1;
+}
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