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

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

VERSION
       Version 3.17

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.

           "f" Use forked parallelism.

           Multiple options may be separated by colons:

               HARNESS_OPTIONS=j9:f make test

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" (actually
       TAP::Parser::Source::Perl) 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) 2007-2008, 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 v5.12.1                      2010-04-26                Test::Harness(3pm)
 

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