NAME

       Test::Unit::Assertion - The abstract base class for assertions

NAME

       Any assertion class that expects to plug into Test::Unit::Assert needs to implement this interface.

   Required methods
       new Creates a new assertion object. Takes whatever arguments you desire.  Isn't strictly necessary for
           the framework to work with this class but is generally considered a good idea.

       do_assertion
           This is the important one. If Test::Unit::Assert::assert is called with an object as its first
           argument then it does:

               $_[0]->do_assertion(@_[1 .. $#_]) ||
                   $self->fail("Assertion failed");

           This means that "do_assertion" should return true if the assertion succeeds and false if it doesn't.
           Or, you can fail by throwing a Test::Unit::Failure object, which will get caught further up the stack
           and used to produce a sensible error report. Generally it's good practice for do_assertion to die
           with a meaningful error on assertion failure rather than just returning false.

AUTHOR

       Copyright (c) 2001 Piers Cawley <pdcawley@iterative-software.com>.

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

SEE ALSO

       •   Test::Unit::Assert

       •   Test::Unit::CodeRef

       •   Test::Unit::Regexp