Test::Harness(3pm)					 Perl Programmers Reference Guide					Test::Harness(3pm)

NAME

       Test::Harness - Run Perl standard test scripts with statistics

VERSION

       Version 3.23

SYNOPSIS

	 use Test::Harness;

	 runtests(@test_files);

DESCRIPTION

       Although, for historical reasons, the Test::Harness distribution takes its name from this module it now exists only to provide TAP::Harness
       with an interface that is somewhat backwards compatible with Test::Harness 2.xx. If you're writing new code consider using TAP::Harness
       directly instead.

       Emulation is provided for "runtests" and "execute_tests" but the pluggable 'Straps' interface that previous versions of Test::Harness
       supported is not reproduced here. Straps is now available as a stand alone module: Test::Harness::Straps.

       See TAP::Parser, TAP::Harness for the main documentation for this distribution.

FUNCTIONS

       The following functions are available.

   runtests( @test_files )
       This runs all the given @test_files and divines whether they passed or failed based on their output to STDOUT (details above).  It prints
       out each individual test which failed along with a summary report and a how long it all took.

       It returns true if everything was ok.  Otherwise it will "die()" with one of the messages in the DIAGNOSTICS section.

   execute_tests( tests => @test_files, out => *FH )
       Runs all the given @test_files (just like "runtests()") but doesn't generate the final report.  During testing, progress information will
       be written to the currently selected output filehandle (usually "STDOUT"), or to the filehandle given by the "out" parameter.  The out is
       optional.

       Returns a list of two values, $total and $failed, describing the results.  $total is a hash ref summary of all the tests run.  Its keys and
       values are this:

	   bonus	   Number of individual todo tests unexpectedly passed
	   max		   Number of individual tests ran
	   ok		   Number of individual tests passed
	   sub_skipped	   Number of individual tests skipped
	   todo 	   Number of individual todo tests

	   files	   Number of test files ran
	   good 	   Number of test files passed
	   bad		   Number of test files failed
	   tests	   Number of test files originally given
	   skipped	   Number of test files skipped

       If "$total->{bad} == 0" and "$total->{max} > 0", you've got a successful test.

       $failed is a hash ref of all the test scripts that failed.  Each key is the name of a test script, each value is another hash representing
       how that script failed.	Its keys are these:

	   name        Name of the test which failed
	   estat       Script's exit value
	   wstat       Script's wait status
	   max	       Number of individual tests
	   failed      Number which failed
	   canon       List of tests which failed (as string).

       $failed should be empty if everything passed.

EXPORT

       &runtests is exported by "Test::Harness" by default.

       &execute_tests, $verbose, $switches and $debug are exported upon request.

ENVIRONMENT VARIABLES THAT TAP
::HARNESS::COMPATIBLE SETS
       "Test::Harness" sets these before executing the individual tests.

       "HARNESS_ACTIVE"
	   This is set to a true value.  It allows the tests to determine if they are being executed through the harness or by any other means.

       "HARNESS_VERSION"
	   This is the version of "Test::Harness".

ENVIRONMENT VARIABLES THAT AFFECT TEST
::HARNESS
       "HARNESS_TIMER"
	   Setting this to true will make the harness display the number of milliseconds each test took.  You can also use prove's "--timer"
	   switch.

       "HARNESS_VERBOSE"
	   If true, "Test::Harness" will output the verbose results of running its tests.  Setting $Test::Harness::verbose will override this, or
	   you can use the "-v" switch in the prove utility.

       "HARNESS_OPTIONS"
	   Provide additional options to the harness. Currently supported options are:

	   "j<n>"
	       Run <n> (default 9) parallel jobs.

	   "c" Try to color output. See "new" in TAP::Formatter::Base.

	   Multiple options may be separated by colons:

	       HARNESS_OPTIONS=j9:c make test

       "HARNESS_SUBCLASS"
	   Specifies a TAP::Harness subclass to be used in place of TAP::Harness.

Taint Mode
       Normally when a Perl program is run in taint mode the contents of the "PERL5LIB" environment variable do not appear in @INC.

       Because "PERL5LIB" is often used during testing to add build directories to @INC "Test::Harness" passes the names of any directories found
       in "PERL5LIB" as -I switches. The net effect of this is that "PERL5LIB" is honoured even in taint mode.

SEE ALSO

       TAP::Harness

BUGS

       Please report any bugs or feature requests to "bug-test-harness at rt.cpan.org", or through the web interface at
       http://rt.cpan.org/NoAuth/ReportBug.html?Queue=Test-Harness <http://rt.cpan.org/NoAuth/ReportBug.html?Queue=Test-Harness>.  I will be
       notified, and then you'll automatically be notified of progress on your bug as I make changes.

AUTHORS

       Andy Armstrong  "<andy@hexten.net>"

       Test::Harness 2.64 (maintained by Andy Lester and on which this module is based) has this attribution:

	   Either Tim Bunce or Andreas Koenig, we don't know. What we know for
	   sure is, that it was inspired by Larry Wall's F<TEST> script that came
	   with perl distributions for ages. Numerous anonymous contributors
	   exist.  Andreas Koenig held the torch for many years, and then
	   Michael G Schwern.

LICENCE AND COPYRIGHT

       Copyright (c) 2007-2011, Andy Armstrong "<andy@hexten.net>". All rights reserved.

       This module is free software; you can redistribute it and/or modify it under the same terms as Perl itself. See perlartistic.

perl v5.16.2							    2012-10-25							Test::Harness(3pm)