Tests for module 'fpurge'.

diff --git a/ChangeLog b/ChangeLog
index adec0a6..f589b72 100644 (file)
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,5 +1,8 @@
 2007-04-13  Bruno Haible  <bruno@clisp.org>
 
+       * modules/fpurge-tests: New file.
+       * tests/test-fpurge.c: New file.
+
        * modules/fpurge: New file.
        * lib/fpurge.h: New file.
        * lib/fpurge.c: New file.

diff --git a/modules/fpurge-tests b/modules/fpurge-tests
new file mode 100644 (file)
index 0000000..c80a5eb
--- /dev/null
+++ b/modules/fpurge-tests
@@ -0,0 +1,11 @@
+Files:
+tests/test-fpurge.c
+
+Depends-on:
+
+configure.ac:
+
+Makefile.am:
+TESTS += test-fpurge
+check_PROGRAMS += test-fpurge
+

diff --git a/tests/test-fpurge.c b/tests/test-fpurge.c
new file mode 100644 (file)
index 0000000..b7bac0b
--- /dev/null
+++ b/tests/test-fpurge.c
@@ -0,0 +1,78 @@
+/* Test of fpurge() 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 "fpurge.h"
+
+#include <stdlib.h>
+#include <string.h>
+
+#define ASSERT(expr) if (!(expr)) abort ();
+
+#define TESTFILE "t-fpurge.tmp"
+
+int
+main ()
+{
+  FILE *fp;
+
+  /* Create a file with some contents.  */
+  fp = fopen (TESTFILE, "w");
+  if (fp == NULL)
+    goto skip;
+  if (fwrite ("foobarsh", 1, 8, fp) < 8)
+    goto skip;
+  if (fclose (fp))
+    goto skip;
+
+  /* Open it in read-write mode.  */
+  fp = fopen (TESTFILE, "r+");
+  if (fp == NULL)
+    goto skip;
+  if (fseek (fp, 3, SEEK_CUR))
+    goto skip;
+  if (fwrite ("g", 1, 1, fp) < 1)
+    goto skip;
+  if (fflush (fp))
+    goto skip;
+  if (fwrite ("az", 1, 2, fp) < 2)
+    goto skip;
+  ASSERT (fpurge (fp) == 0);
+  ASSERT (fclose (fp) == 0);
+
+  /* Open it in read-only mode.  */
+  fp = fopen (TESTFILE, "r");
+  if (fp == NULL)
+    goto skip;
+  {
+    char buf[8];
+    if (fread (buf, 1, 8, fp) < 8)
+      goto skip;
+    ASSERT (memcmp (buf, "foogarsh", 8) == 0);
+  }
+  ASSERT (fpurge (fp) == 0);
+  ASSERT (fclose (fp) == 0);
+
+  return 0;
+
+ skip:
+  fprintf (stderr, "Skipping test: file operations failed.\n");
+  return 77;
+}