Add missing include.

[gnulib.git] / tests / test-strcasestr.c

diff --git a/tests/test-strcasestr.c b/tests/test-strcasestr.c
index 5ea0f4e..88798a5 100644 (file)
--- a/tests/test-strcasestr.c
+++ b/tests/test-strcasestr.c
@@ -1,10 +1,10 @@
 /* Test of case-insensitive searching in a string.
-   Copyright (C) 2007 Free Software Foundation, Inc.
+   Copyright (C) 2007, 2008 Free Software Foundation, Inc.
 
-   This program is free software; you can redistribute it and/or modify
+   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 2, or (at your option)
-   any later version.
+   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
@@ -12,24 +12,43 @@
    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, write to the Free Software Foundation,
-   Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.  */
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
 
 /* Written by Bruno Haible <bruno@clisp.org>, 2007.  */
 
-#ifdef HAVE_CONFIG_H
-# include <config.h>
-#endif
+#include <config.h>
 
 #include <string.h>
 
+#include <signal.h>
+#include <stdio.h>
 #include <stdlib.h>
-
-#define ASSERT(expr) if (!(expr)) abort ();
+#include <unistd.h>
+
+#define ASSERT(expr) \
+  do                                                                        \
+    {                                                                       \
+      if (!(expr))                                                          \
+        {                                                                   \
+          fprintf (stderr, "%s:%d: assertion failed\n", __FILE__, __LINE__); \
+          fflush (stderr);                                                  \
+          abort ();                                                         \
+        }                                                                   \
+    }                                                                       \
+  while (0)
 
 int
 main ()
 {
+#if HAVE_DECL_ALARM
+  /* Declare failure if test takes too long, by using default abort
+     caused by SIGALRM.  All known platforms that lack alarm also lack
+     strcasestr, and the replacement memmem is known to not take too
+     long.  */
+  signal (SIGALRM, SIG_DFL);
+  alarm (50);
+#endif
+
   {
     const char input[] = "foo";
     const char *result = strcasestr (input, "");
@@ -54,6 +73,12 @@ main ()
     ASSERT (result == NULL);
   }
 
+  {
+    const char input[] = "ABC ABCDAB ABCDABCDABDE";
+    const char *result = strcasestr (input, "ABCDaBCD");
+    ASSERT (result == input + 11);
+  }
+
   /* Check that a very long haystack is handled quickly if the needle is
      short and occurs near the beginning.  */
   {
@@ -103,7 +128,6 @@ main ()
   }
 
   /* Check that the asymptotic worst-case complexity is not quadratic.  */
-#if !HAVE_STRCASESTR /* The system's strcasestr() function fails this test.  */
   {
     size_t m = 1000000;
     char *haystack = (char *) malloc (2 * m + 2);
@@ -123,12 +147,9 @@ main ()
        result = strcasestr (haystack, needle);
        ASSERT (result == haystack + m);
       }
-    if (needle != NULL)
-      free (needle);
-    if (haystack != NULL)
-      free (haystack);
+    free (needle);
+    free (haystack);
   }
-#endif
 
   return 0;
 }