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Manual Reference Pages  -  TEST::UNIT::ASSERTION (3)

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NAME

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

CONTENTS

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

o Test::Unit::Assert
o Test::Unit::CodeRef
o Test::Unit::Regexp
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perl v5.20.3 TEST::UNIT::ASSERTION (3) 2001-12-20

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