Test::Filename(3) Portable filename comparison


version 0.03


use Test::Filename tests => 2;

filename_is ( "some\path", "some/path", "should pass" );
filename_isnt( "some\path", "some/path", "should fail" );


Many cross-platform test failures --- particularly on Win32 --- are due to hard-coded file paths being used in comparison tests.

  my $file = get_file();     # returns "foo\bar.t";
  is( $file, "foo/bar.t" );  # fails on Win32

This simple module provides some handy functions to convert all those path separators automatically so filename tests will just DWIM.

The alternative is to write your own utility subroutine and use it everywhere or just keep on littering your test code with calls to File::Spec --- yuck!

  is( $file, File::Spec->canonpath("some/path"), "should pass" );

Since this module is so simple, you might not think it worth including as a dependency. After all, it's not that hard to always remember to use File::Spec, Path::Tiny or some other file utility, right? But odds are that, at some point, you'll be so busy writing tests that you'll forget and hard-code a path in your haste to show what a clever programmer you are.

So just use this module and stop worrying about it. You'll be happier and so will anyone trying to install your modules on Win32.


Just like Test::More, you have the option of providing a test plan as arguments when you use this module. The following functions are imported by default.

filename_is =head2 filename_isnt

    filename_is  ( $got, $expected, $label );
    filename_isnt( $got, $expected, $label );

These functions work just like "is()" and "isnt()" from Test::More, but the first two argument will be cleaned up and normalized to Unix-style paths using Path::Tiny. This means that ".\foo.txt" will get normalized to "foo.txt" and so on.


Bugs / Feature Requests

Please report any bugs or feature requests through the issue tracker at <https://github.com/dagolden/test-filename/issues>. You will be notified automatically of any progress on your issue.

Source Code

This is open source software. The code repository is available for public review and contribution under the terms of the license.


  git clone git://github.com/dagolden/test-filename.git


David A. Golden <[email protected]>


This software is Copyright (c) 2007 by David A. Golden.

This is free software, licensed under:

  The Apache License, Version 2.0, January 2004