Test::Harness - Run Perl standard test scripts with statistics
Version 3.48
use Test::Harness;
runtests(@test_files);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.
The following functions are available.
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.
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 skippedIf $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.
&runtests is exported by Test::Harness by default.
&execute_tests, $verbose, $switches and $debug are exported upon request.
Test::Harness sets these before executing the individual tests.
HARNESS_ACTIVEThis 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_VERSIONThis is the version of Test::Harness.
HARNESS_PERL_SWITCHESSetting this adds perl command line switches to each test file run.
For example, HARNESS_PERL_SWITCHES=-T will turn on taint mode. HARNESS_PERL_SWITCHES=-MDevel::Cover will run Devel::Cover for each test.
-w is always set. You can turn this off in the test with BEGIN { $^W = 0 }.
HARNESS_TIMERSetting this to true will make the harness display the number of milliseconds each test took. You can also use prove's --timer switch.
HARNESS_VERBOSEIf 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_OPTIONSProvide additional options to the harness. Currently supported options are:
j<n>Run <n> (default 9) parallel jobs.
cTry to color output. See "new" in TAP::Formatter::Base.
a<file.tgz>Will use TAP::Harness::Archive as the harness class, and save the TAP to file.tgz
fPackage-With-DashesSet the formatter_class of the harness being run. Since the HARNESS_OPTIONS is separated by :, we use - instead.
Multiple options may be separated by colons:
HARNESS_OPTIONS=j9:c make testHARNESS_SUBCLASSSpecifies a TAP::Harness subclass to be used in place of TAP::Harness.
HARNESS_SUMMARY_COLOR_SUCCESSDetermines the Term::ANSIColor for the summary in case it is successful. This color defaults to 'green'.
HARNESS_SUMMARY_COLOR_FAILDetermines the Term::ANSIColor for the failure in case it is successful. This color defaults to 'red'.
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.
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. I will be notified, and then you'll automatically be notified of progress on your bug as I make changes.
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.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.