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TAP::H...ss::Env(3perl) Perl Programmers Reference GuideTAP::H...ss::Env(3perl)

NAME
       TAP::Harness::Env - Parsing harness related environmental variables
       where appropriate

VERSION
       Version 3.48

SYNOPSIS
        my $harness = TAP::Harness::Env->create(\%extra_args)

DESCRIPTION
       This module implements the environmental variables that Test::Harness
       uses with TAP::Harness, and instantiates the appropriate class with the
       appropriate arguments.

METHODS
       •   create( \%args )

           This  function  reads  the  environment and generates an appropriate
           argument hash from it. If given any arguments in %extra_args,  these
           will override the environmental defaults. In accepts "harness_class"
           (which  defaults  to  "TAP::Harness"),  and any argument the harness
           class accepts.

ENVIRONMENTAL VARIABLES
       "HARNESS_PERL_SWITCHES"
           Setting 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.

       "HARNESS_VERBOSE"
           If true, "TAP::Harness" will output the verbose results  of  running
           its tests.

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

       "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.

           "a<file.tgz>"
               Will  use  TAP::Harness::Archive  as the harness class, and save
               the TAP to "file.tgz"

           "fPackage-With-Dashes"
               Set 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 test

       "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_COLOR"
           Attempt to produce color output.

       "HARNESS_IGNORE_EXIT"
           If  set  to  a  true value instruct "TAP::Parser" to ignore exit and
           wait status from test scripts.

perl v5.40.1                       2026-08-30           TAP::H...ss::Env(3perl)

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