Tests for module 'freadptr'.

diff --git a/ChangeLog b/ChangeLog
index ada44986e810eb58f432dd0f7185e6d05d3aa53d..a45d34b21a4f4637276fe7dbb2e990e768b12496 100644 (file)
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,5 +1,9 @@
 2008-02-28  Bruno Haible  <bruno@clisp.org>
 
+       * modules/freadptr-tests: New file.
+       * tests/test-freadptr.sh: New file.
+       * tests/test-freadptr.c: New file.
+
        New module 'freadptr'.
        * modules/freadptr: New file.
        * lib/freadptr.h: New file.

diff --git a/modules/freadptr-tests b/modules/freadptr-tests
new file mode 100644 (file)
index 0000000..16c7ee4
--- /dev/null
+++ b/modules/freadptr-tests
@@ -0,0 +1,15 @@
+Files:
+tests/test-freadptr.c
+tests/test-freadptr.sh
+
+Depends-on:
+lseek
+freadahead
+unistd
+
+configure.ac:
+
+Makefile.am:
+TESTS += test-freadptr.sh
+TESTS_ENVIRONMENT += EXEEXT='@EXEEXT@' srcdir='$(srcdir)'
+check_PROGRAMS += test-freadptr

diff --git a/tests/test-freadptr.c b/tests/test-freadptr.c
new file mode 100644 (file)
index 0000000..5c5e41e
--- /dev/null
+++ b/tests/test-freadptr.c
@@ -0,0 +1,65 @@
+/* Test of freadptr() 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>, 2008.  */
+
+#include <config.h>
+
+#include "freadptr.h"
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+
+#include "freadahead.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]);
+  void *buf = malloc (nbytes);
+  ASSERT (fread (buf, 1, nbytes, stdin) == nbytes);
+
+  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.  */
+      const char stdin_contents[] =
+       "#!/bin/sh\n\n./test-freadptr${EXEEXT} 5 < \"$srcdir/test-freadptr.sh\" || exit 1\nexit 0\n";
+      const char *expected = stdin_contents + nbytes;
+      size_t available = freadahead (stdin);
+      ASSERT (available != 0);
+      ASSERT (available <= strlen (expected));
+      ASSERT (memcmp (freadptr (stdin), expected, available) == 0);
+    }
+
+  return 0;
+}

diff --git a/tests/test-freadptr.sh b/tests/test-freadptr.sh
new file mode 100755 (executable)
index 0000000..945c31d
--- /dev/null
+++ b/tests/test-freadptr.sh
@@ -0,0 +1,4 @@
+#!/bin/sh
+
+./test-freadptr${EXEEXT} 5 < "$srcdir/test-freadptr.sh" || exit 1
+exit 0