1 files changed, 86 insertions, 0 deletions
diff --git a/tests/unigbrk/test-ulc-grapheme-breaks.c b/tests/unigbrk/test-ulc-grapheme-breaks.c
new file mode 100644
index 0000000..29b8a26
--- /dev/null
+++ b/tests/unigbrk/test-ulc-grapheme-breaks.c
@@ -0,0 +1,86 @@
+/* Grapheme cluster breaks test.
+   Copyright (C) 2009-2015 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 Ben Pfaff <blp@cs.stanford.edu>, 2010,
+   based on code by Bruno Haible <bruno@clisp.org>, 2009.  */
+
+#include <config.h>
+
+#include "unigbrk.h"
+
+#include <locale.h>
+#include <stdlib.h>
+
+#include "macros.h"
+
+static bool
+is_8859_6_break (unsigned char c)
+{
+  /* ISO-8859-6 has combining characters in positions 0xeb through 0xf2. */
+  return !(c >= 0xeb && c <= 0xf2);
+}
+
+int
+main ()
+{
+  /* configure should already have checked that the locale is supported.  */
+  if (setlocale (LC_ALL, "") == NULL)
+    return 1;
+
+  /* Test case n = 0.  */
+  ulc_grapheme_breaks (NULL, 0, NULL);
+
+#if HAVE_ICONV
+  {
+    /* This is just a random collection of bytes from ISO-8859-6.
+
+       (We use ISO-8859-6 because it is one of very few non-UTF-8 locale
+       encodings supported by glibc that have combining characters.) */
+    static const char s[] = "ZYX\352\353W\360\361V\362";
+    enum { LENGTH = sizeof s - 1 };
+    char p[LENGTH];
+    size_t i;
+
+    ulc_grapheme_breaks (s, LENGTH, p);
+    for (i = 0; i < LENGTH; i++)
+      if (p[i] != is_8859_6_break (s[i]))
+        {
+          size_t j;
+
+          fprintf (stderr, "wrong grapheme breaks:\n");
+
+          fprintf (stderr, "   input:");
+          for (j = 0; j < LENGTH; j++)
+            fprintf (stderr, " %02x", (unsigned char) s[j]);
+          putc ('\n', stderr);
+
+          fprintf (stderr, "expected:");
+          for (j = 0; j < LENGTH; j++)
+            fprintf (stderr, "  %d", is_8859_6_break (s[j]));
+          putc ('\n', stderr);
+
+          fprintf (stderr, "  actual:");
+          for (j = 0; j < LENGTH; j++)
+            fprintf (stderr, "  %d", p[j]);
+          putc ('\n', stderr);
+
+          abort ();
+        }
+  }
+#endif
+
+  return 0;
+}