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Ricardo SIGNES > HTML-Form-ForceValue-0.007 > HTML::Form::ForceValue



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Module Version: 0.007   Source   Latest Release: HTML-Form-ForceValue-0.009


HTML::Form::ForceValue - who cares what values are legal, anyway?


version 0.007


  use Test::WWW::Mechanize tests => 5;
  use HTML::Form::ForceValue;

  my $mech = WWW::Mechanize->new;

  # We're going to test our form.

    name => 'Crazy Ivan',
    city => 'Vladivostok',

  # What if insane bot tries to claim it's from USSR?



As of libwww-perl 5.817, HTML::Form has a strict mode, which restricts form values to the options given. Without strict mode, values may be set to anything you like, making this module unnecessary. It remains on the CPAN for use by those who choose not to upgrade their LWP, but in general this code is now obsolete.


HTML::Form is a very useful module that provides objects to represent HTML forms. They can be filled in, and the filled-in values can be converted into an HTTP::Request for submission to a server.

WWW::Mechanize makes this even easier by providing a very easy to automate user agent that provides HTML::Form objects to represent forms. Test::WWW::Mechanize hangs some testing features on Mech, making it easy to automatically test how web applications behave.

One really important thing to test is how a web application responds to invalid input. Unfortunately, HTML::Form protects you from doing this by throwing an exception when an invalid datum is assigned to an enumerated field. HTML::Form::ForceValue mixes in to HTML::Form classes to provide force_value methods which behave like value, but will automatically add any invalid datum to the list of valid data.


This implementation is extremely crude. This feature should really be in HTML::Form (in my humble opinion), and this module should cease to exist once it is. In the meantime, just keep in mind that I spent a lot more time packaging this than I did writing it. Caveat importor!


Ricardo SIGNES, <rjbs at>


Please report any bugs or feature requests to bug-form at, or through the web interface at I will be notified, and then you'll automatically be notified of progress on your bug as I make changes.


You can find documentation for this module with the perldoc command.

    perldoc HTML::Form::ForceValue

You can also look for information at:



Copyright 2006 Ricardo SIGNES, all rights reserved.

This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself.

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