Test - provides a simple framework for writing test scripts
use strict; use Test; # use a BEGIN block so we print our plan before MyModule is loaded BEGIN { plan tests => 14, todo => [3,4] } # load your module... use MyModule; ok(0); # failure ok(1); # success ok(0); # ok, expected failure (see todo list, above) ok(1); # surprise success! ok(0,1); # failure: '0' ne '1' ok('broke','fixed'); # failure: 'broke' ne 'fixed' ok('fixed','fixed'); # success: 'fixed' eq 'fixed' ok('fixed',qr/x/); # success: 'fixed' =~ qr/x/ ok(sub { 1+1 }, 2); # success: '2' eq '2' ok(sub { 1+1 }, 3); # failure: '2' ne '3' ok(0, int(rand(2)); # (just kidding :-) my @list = (0,0); ok @list, 3, "\@list=".join(',',@list); #extra diagnostics ok 'segmentation fault', '/(?i)success/'; #regex match skip($feature_is_missing, ...); #do platform specific test
Test::Harness expects to see particular output when it executes tests. This module aims to make writing proper test scripts just a little bit easier (and less error prone :-).
NORMAL TESTS
These tests are expected to succeed. If they don't something's screwed up!
SKIPPED TESTS
Skip is for tests that might or might not be possible to run depending on the availability of platform specific features. The first argument should evaluate to true (think "yes, please skip") if the required feature is not available. After the first argument, skip works exactly the same way as do normal tests.
TODO TESTS
TODO tests are designed for maintaining an executable TODO list. These tests are expected NOT to succeed. If a TODO test does succeed, the feature in question should not be on the TODO list, now should it?
Packages should NOT be released with succeeding TODO tests. As soon as a TODO test starts working, it should be promoted to a normal test and the newly working feature should be documented in the release notes or change log.
Both ok and skip return true if their test succeeds and false otherwise in a scalar context.
ok
skip
BEGIN { plan test => 4, onfail => sub { warn "CALL 911!" } }
While test failures should be enough, extra diagnostics can be triggered at the end of a test run. onfail is passed an array ref of hash refs that describe each test failure. Each hash will contain at least the following fields: package, repetition, and result. (The file, line, and test number are not included because their correspondence to a particular test is tenuous.) If the test had an expected value or a diagnostic string, these will also be included.
onfail
package
repetition
result
The optional onfail hook might be used simply to print out the version of your package and/or how to report problems. It might also be used to generate extremely sophisticated diagnostics for a particularly bizarre test failure. However it's not a panacea. Core dumps or other unrecoverable errors prevent the onfail hook from running. (It is run inside an END block.) Besides, onfail is probably over-kill in most cases. (Your test code should be simpler than the code it is testing, yes?)
END
Test::Harness and, perhaps, test coverage analysis tools.
Copyright (c) 1998-1999 Joshua Nathaniel Pritikin. All rights reserved.
This package is free software and is provided "as is" without express or implied warranty. It may be used, redistributed and/or modified under the terms of the Perl Artistic License (see http://www.perl.com/perl/misc/Artistic.html)
To install lib, copy and paste the appropriate command in to your terminal.
cpanm
cpanm lib
CPAN shell
perl -MCPAN -e shell install lib
For more information on module installation, please visit the detailed CPAN module installation guide.