Test::Unit::Assertion::Regexp - Assertion with regex matching
require Test::Unit::Assertion::Regexp; my $assert_re = Test::Unit::Assertion::Regexp->new(qr/a_pattern/); $assert_re->do_assertion('a_string');
This is rather more detail than the average user will need. Test::Unit::Assertion::Regexp objects are generated automagically by Test::Unit::Assert::assert when it is passed a regular expression as its first parameter.
sub test_foo { ... $self->assert(qr/some_pattern/, $result); }
If the assertion fails then the object throws an exception with details of the pattern and the string it failed to match against.
Note that if you need to do a 'string does not match this pattern' type of assertion then you can do:
$self->assert(qr/(?!some_pattern)/, $some_string)
ie. Make use of the negative lookahead assertion.
Test::Unit::Assertion::Regexp implements the Test::Unit::Assertion interface, which means it can be plugged into the Test::Unit::TestCase and friends' assert method with no ill effects.
assert
The class is used by the framework to provide sensible 'automatic' reports when a match fails. The old:
$self->assert(scalar($foo =~ /pattern/), "$foo didn't match /.../");
seems rather clumsy compared to this. If the regexp assertion fails, then the user is given a sensible error message, with the pattern and the string that failed to match it...
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.
Test::Unit::TestCase
Test::Unit::Assertion
To install Test::Unit, copy and paste the appropriate command in to your terminal.
cpanm
cpanm Test::Unit
CPAN shell
perl -MCPAN -e shell install Test::Unit
For more information on module installation, please visit the detailed CPAN module installation guide.