#summary Ideas to steal from other testing systems

== [http://www.nunit.org NUnit] ==

=== [http://www.nunit.org/index.php?p=constraintModel&r=2.4.8 Asserts as constraint objects] ===

The user writes:

{{{
Assert.That(2 + 2, Is.EqualTo(4));
}}}

`Is.EqualTo()` returns a constraint object which has all the information necessary to do the constraint and report diagnostics.  `Assert.That` essentially then does...

{{{
sub Assert::That {
    my($class, $have, $want) = @_;

    unless( my $result = $want->assertion($have) ) {
        diag( $result->diagnostic_string );
        return 0;
    }

    return 1;
}
}}}


== [http://python-nose.googlecode.com/ Nose] ==

=== [http://python-nose.googlecode.com/svn/trunk/nose/plugins/skip.py Pluggable Result Types] ===

The idea of adding your own test result types.