This is Perl module Test::Deep::Between. INSTALLATION Type the following command: $ curl -L http://cpanmin.us | perl - Test::Deep::Between Or install cpanm and then run the following command to install Test::Deep::Between: $ cpanm Test::Deep::Between If you get an archive of this distribution, unpack it and build it as per the usual: $ tar xzf Test-Deep-Between-$version.tar.gz $ cd Test-Deep-Between-$version $ perl Makefile.PL $ make && make test Then install it: $ make install DOCUMENTATION Test::Deep::Between documentation is available as in POD. So you can do: $ perldoc Test::Deep::Between to read the documentation online with your favorite pager. LICENSE AND COPYRIGHT Copyright (c) 2013, Makoto Taniwaki. All rights reserved. This library is free software; you can redistribute it and/or modify it under the same terms as Perl itself.