From 5bca97aedcd1e07c1bd80c242239b83c7df9194d Mon Sep 17 00:00:00 2001
From: Bruno Haible <bruno@clisp.org>
Date: Sun, 19 Aug 2007 17:43:56 +0000
Subject: [PATCH] Tests for module 'freadahead'.

---
 ChangeLog                |  4 +++
 modules/freadahead-tests | 15 ++++++++++++
 tests/test-freadahead.c  | 63 ++++++++++++++++++++++++++++++++++++++++++++++++
 tests/test-freadahead.sh |  5 ++++
 4 files changed, 87 insertions(+)
 create mode 100644 modules/freadahead-tests
 create mode 100644 tests/test-freadahead.c
 create mode 100755 tests/test-freadahead.sh

diff --git a/ChangeLog b/ChangeLog
index c5dc31e57..8a81c4a93 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,5 +1,9 @@
 2007-08-19  Bruno Haible  <bruno@clisp.org>
 
+	* modules/freadahead-tests: New file.
+	* tests/test-freadahead.sh: New file.
+	* tests/test-freadahead.c: New file.
+
 	* modules/freadahead: New file.
 	* lib/freadahead.h: New file.
 	* lib/freadahead.c: New file.
diff --git a/modules/freadahead-tests b/modules/freadahead-tests
new file mode 100644
index 000000000..89801a098
--- /dev/null
+++ b/modules/freadahead-tests
@@ -0,0 +1,15 @@
+Files:
+tests/test-freadahead.c
+tests/test-freadahead.sh
+
+Depends-on:
+lseek
+unistd
+
+configure.ac:
+
+Makefile.am:
+TESTS += test-freadahead.sh
+TESTS_ENVIRONMENT += EXEEXT='@EXEEXT@' srcdir='$(srcdir)'
+check_PROGRAMS += test-freadahead
+EXTRA_DIST += test-freadahead.sh
diff --git a/tests/test-freadahead.c b/tests/test-freadahead.c
new file mode 100644
index 000000000..9bc5d7376
--- /dev/null
+++ b/tests/test-freadahead.c
@@ -0,0 +1,63 @@
+/* Test of freadahead() function.
+   Copyright (C) 2007 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 2, 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, write to the Free Software Foundation,
+   Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.  */
+
+/* Written by Bruno Haible <bruno@clisp.org>, 2007.  */
+
+#include <config.h>
+
+#include "freadahead.h"
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+
+#define ASSERT(expr) \
+  do									     \
+    {									     \
+      if (!(expr))							     \
+        {								     \
+          fprintf (stderr, "%s:%d: assertion failed\n", __FILE__, __LINE__); \
+          abort ();							     \
+        }								     \
+    }									     \
+  while (0)
+
+int
+main (int argc, char **argv)
+{
+  int nbytes = atoi (argv[1]);
+  if (nbytes > 0)
+    {
+      void *buf = malloc (nbytes);
+      ASSERT (fread (buf, 1, nbytes, stdin) == nbytes);
+    }
+
+  if (nbytes == 0)
+    ASSERT (freadahead (stdin) == 0);
+  else
+    {
+      if (lseek (0, 0, SEEK_CUR) == nbytes)
+	/* An unbuffered stdio, such as BeOS or on uClibc compiled without
+	   __STDIO_BUFFERS.  */
+	ASSERT (freadahead (stdin) == 0);
+      else
+	/* Normal buffered stdio.  */
+	ASSERT (freadahead (stdin) != 0);
+    }
+
+  return 0;
+}
diff --git a/tests/test-freadahead.sh b/tests/test-freadahead.sh
new file mode 100755
index 000000000..27cf55046
--- /dev/null
+++ b/tests/test-freadahead.sh
@@ -0,0 +1,5 @@
+#!/bin/sh
+
+./test-freadahead${EXEEXT} 0 < "$srcdir/test-freadahead.sh" || exit 1
+./test-freadahead${EXEEXT} 5 < "$srcdir/test-freadahead.sh" || exit 1
+exit 0
-- 
2.11.0