1 files changed, 91 insertions, 0 deletions
diff --git a/tests/test-wcwidth.c b/tests/test-wcwidth.c
new file mode 100644
index 0000000..582a8aa
--- /dev/null
+++ b/tests/test-wcwidth.c
@@ -0,0 +1,91 @@
+/* Test of wcwidth() function.
+   Copyright (C) 2007-2008 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>, 2007.  */
+
+#include <config.h>
+
+#include <wchar.h>
+
+#include <locale.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "localcharset.h"
+
+#define ASSERT(expr) \
+  do									     \
+    {									     \
+      if (!(expr))							     \
+        {								     \
+          fprintf (stderr, "%s:%d: assertion failed\n", __FILE__, __LINE__); \
+          fflush (stderr);						     \
+          abort ();							     \
+        }								     \
+    }									     \
+  while (0)
+
+int
+main ()
+{
+  wchar_t wc;
+
+  /* Test width of ASCII characters.  */
+  for (wc = 0x20; wc < 0x7F; wc++)
+    ASSERT (wcwidth (wc) == 1);
+
+  /* Switch to an UTF-8 locale.  */
+  if (setlocale (LC_ALL, "fr_FR.UTF-8") != NULL
+      /* Check whether it's really an UTF-8 locale.
+	 On OpenBSD 4.0, the setlocale call succeeds only for the LC_CTYPE
+	 category and therefore returns "C/fr_FR.UTF-8/C/C/C/C", but the
+	 LC_CTYPE category is effectively set to an ASCII LC_CTYPE category;
+	 in particular, locale_charset() returns "ASCII".  */
+      && strcmp (locale_charset (), "UTF-8") == 0)
+    {
+      /* Test width of ASCII characters.  */
+      for (wc = 0x20; wc < 0x7F; wc++)
+	ASSERT (wcwidth (wc) == 1);
+
+      /* Test width of some non-spacing characters.  */
+      ASSERT (wcwidth (0x0301) == 0);
+      ASSERT (wcwidth (0x05B0) == 0);
+
+      /* Test width of some format control characters.  */
+      ASSERT (wcwidth (0x200E) <= 0);
+      ASSERT (wcwidth (0x2060) <= 0);
+#if 0  /* wchar_t may be only 16 bits.  */
+      ASSERT (wcwidth (0xE0001) <= 0);
+      ASSERT (wcwidth (0xE0044) <= 0);
+#endif
+
+      /* Test width of some zero width characters.  */
+      ASSERT (wcwidth (0x200B) == 0);
+      ASSERT (wcwidth (0xFEFF) <= 0);
+
+      /* Test width of some CJK characters.  */
+      ASSERT (wcwidth (0x3000) == 2);
+      ASSERT (wcwidth (0xB250) == 2);
+      ASSERT (wcwidth (0xFF1A) == 2);
+#if 0  /* wchar_t may be only 16 bits.  */
+      ASSERT (wcwidth (0x20369) == 2);
+      ASSERT (wcwidth (0x2F876) == 2);
+#endif
+    }
+
+  return 0;
+}