toupper_l: Add tests.

* tests/test-toupper_l.c: New file, based on tests/test-c32toupper.c. * modules/toupper_l-tests: New file.
coreutils · Feb 16, 2025 · a0b4542 · a0b4542
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diff --git a/ChangeLog b/ChangeLog
@@ -1,5 +1,9 @@
 2025-02-16  Bruno Haible  <[email protected]>
 
+	toupper_l: Add tests.
+	* tests/test-toupper_l.c: New file, based on tests/test-c32toupper.c.
+	* modules/toupper_l-tests: New file.
+
 	toupper_l: New module.
 	* lib/ctype.in.h: (toupper_l): New declaration.
 	* lib/toupper_l.c: New file.

diff --git a/modules/toupper_l-tests b/modules/toupper_l-tests
@@ -0,0 +1,16 @@
+Files:
+tests/test-toupper_l.c
+tests/signature.h
+tests/macros.h
+m4/musl.m4
+
+Depends-on:
+newlocale
+freelocale
+
+configure.ac:
+gl_MUSL_LIBC
+
+Makefile.am:
+TESTS += test-toupper_l
+check_PROGRAMS += test-toupper_l
diff --git a/tests/test-toupper_l.c b/tests/test-toupper_l.c
@@ -0,0 +1,152 @@
+/* Test of toupper_l() function.
+   Copyright (C) 2020-2025 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 <ctype.h>
+
+#include "signature.h"
+SIGNATURE_CHECK (toupper_l, int, (int, locale_t));
+
+#include <locale.h>
+#include <stdio.h>
+
+#include "macros.h"
+
+static void
+test_single_locale_common (locale_t locale)
+{
+  int tc;
+
+  /* Test EOF.  */
+  tc = toupper_l (EOF, locale);
+  ASSERT (tc == EOF);
+
+  /* POSIX specifies in
+       <https://pubs.opengroup.org/onlinepubs/9699919799/basedefs/V1_chap07.html>
+     that
+       - in all locales, the lowercase characters include the a ... z
+         characters, and the corresponding characters A ... Z (if not in a
+         Turkish locale) are uppercase,
+       - in the "POSIX" locale (which is usually the same as the "C" locale),
+         the lowercase characters include only the ASCII a ... z characters,
+         and the corresponding characters A ... Z are uppercase.
+   */
+  {
+    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".  */
+          tc = toupper_l ((unsigned char) c, locale);
+          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 (tc == (unsigned char) c - 'a' + 'A');
+              break;
+            default:
+              ASSERT (tc == c);
+              break;
+            }
+          break;
+        }
+  }
+}
+
+int
+main ()
+{
+  {
+    locale_t locale = newlocale (LC_ALL_MASK, "C", NULL);
+    ASSERT (locale != NULL);
+
+    test_single_locale_common (locale);
+
+    freelocale (locale);
+  }
+#if !MUSL_LIBC /* musl libc has no unibyte locales */
+  {
+# if defined _WIN32 && !defined __CYGWIN__
+    locale_t locale = newlocale (LC_ALL_MASK, "French_France.1252", NULL);
+# else
+    locale_t locale = newlocale (LC_ALL_MASK, "fr_FR.ISO-8859-1", NULL);
+    if (locale == NULL)
+      locale = newlocale (LC_ALL_MASK, "fr_FR.ISO8859-1", NULL);
+# endif
+    if (locale != NULL)
+      {
+        test_single_locale_common (locale);
+
+        /* Locale encoding is ISO-8859-1 or ISO-8859-15.  */
+        int tc;
+
+        /* U+00B2 SUPERSCRIPT TWO */
+        tc = toupper_l ((unsigned char) '\262', locale);
+        ASSERT (tc == (unsigned char) '\262');
+      #if !(defined __GLIBC__ || (defined __APPLE__ && defined __MACH__) || defined __FreeBSD__ || defined __NetBSD__ || defined __sun || defined __CYGWIN__ || (defined _WIN32 && !defined __CYGWIN__))
+        /* U+00B5 MICRO SIGN */
+        tc = toupper_l ((unsigned char) '\265', locale);
+        ASSERT (tc == (unsigned char) '\265');
+      #endif
+        /* U+00C9 LATIN CAPITAL LETTER E WITH ACUTE */
+        tc = toupper_l ((unsigned char) '\311', locale);
+        ASSERT (tc == (unsigned char) '\311');
+        /* U+00DF LATIN SMALL LETTER SHARP S */
+        tc = toupper_l ((unsigned char) '\337', locale);
+        ASSERT (tc == (unsigned char) '\337');
+        /* U+00E9 LATIN SMALL LETTER E WITH ACUTE */
+        tc = toupper_l ((unsigned char) '\351', locale);
+        ASSERT (tc == (unsigned char) '\311');
+      #if !(defined __GLIBC__ || (defined __APPLE__ && defined __MACH__) || defined __FreeBSD__ || defined __DragonFly__ || defined __NetBSD__ || defined __sun || defined __CYGWIN__ || (defined _WIN32 && !defined __CYGWIN__))
+        /* U+00FF LATIN SMALL LETTER Y WITH DIAERESIS */
+        tc = toupper_l ((unsigned char) '\377', locale);
+        ASSERT (tc == (unsigned char) '\377');
+      #endif
+
+        freelocale (locale);
+      }
+  }
+#endif
+
+  return test_exit_status;
+}