strverscmp: add unit test

* modules/strverscmp-tests: New file.
* tests/test-strverscmp.c: Likewise.

Signed-off-by: Eric Blake <ebb9@byu.net>

3 files changed, 72 insertions, 0 deletions

diff --git a/ChangeLog b/ChangeLog
index 1fc6da2871..35c2013bd9 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,9 @@
+2008-08-19  Eric Blake  <ebb9@byu.net>
+
+	strverscmp: add unit test
+	* modules/strverscmp-tests: New file.
+	* tests/test-strverscmp.c: Likewise.
+
 2008-08-19  Simon Josefsson  <simon@josefsson.org>
 
 	* lib/gc-gnulib.c: Indentation cleanup.  Add some comments
diff --git a/modules/strverscmp-tests b/modules/strverscmp-tests
new file mode 100644
index 0000000000..343df258ff
--- /dev/null
+++ b/modules/strverscmp-tests
@@ -0,0 +1,10 @@
+Files:
+tests/test-strverscmp.c
+
+Depends-on:
+
+configure.ac:
+
+Makefile.am:
+TESTS += test-strverscmp
+check_PROGRAMS += test-strverscmp
diff --git a/tests/test-strverscmp.c b/tests/test-strverscmp.c
new file mode 100644
index 0000000000..605b0f6d18
--- /dev/null
+++ b/tests/test-strverscmp.c
@@ -0,0 +1,56 @@
+/* Test of strverscmp() function.
+   Copyright (C) 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, 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 Eric Blake <ebb9@byu.net>, 2008.  */
+
+#include <config.h>
+
+#include "strverscmp.h"
+
+#include <stdio.h>
+#include <stdlib.h>
+
+#define ASSERT(expr) \
+  do									     \
+    {									     \
+      if (!(expr))							     \
+        {								     \
+          fprintf (stderr, "%s:%d: assertion failed\n", __FILE__, __LINE__); \
+          fflush (stderr);						     \
+          abort ();							     \
+        }								     \
+    }									     \
+  while (0)
+
+int
+main (int argc, char **argv)
+{
+  ASSERT (strverscmp ("", "") == 0);
+  ASSERT (strverscmp ("a", "a") == 0);
+  ASSERT (strverscmp ("a", "b") < 0);
+  ASSERT (strverscmp ("b", "a") > 0);
+  ASSERT (strverscmp ("000", "00") < 0);
+  ASSERT (strverscmp ("00", "000") > 0);
+  ASSERT (strverscmp ("a0", "a") > 0);
+  ASSERT (strverscmp ("00", "01") < 0);
+  ASSERT (strverscmp ("01", "010") < 0);
+  ASSERT (strverscmp ("010", "09") < 0);
+  ASSERT (strverscmp ("09", "0") < 0);
+  ASSERT (strverscmp ("9", "10") < 0);
+  ASSERT (strverscmp ("0a", "0") > 0);
+  return 0;
+}