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.IX Title "TAP::Harness::Env 3"
.TH TAP::Harness::Env 3 "2015-12-30" "perl v5.16.3" "User Contributed Perl Documentation"
.\" For nroff, turn off justification. Always turn off hyphenation; it makes
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.SH "NAME"
TAP::Harness::Env \- Parsing harness related environmental variables where appropriate
.SH "VERSION"
.IX Header "VERSION"
Version 3.36
.SH "SYNOPSIS"
.IX Header "SYNOPSIS"
.Vb 1
\& my $harness = TAP::Harness::Env\->create(\e%extra_args)
.Ve
.SH "DESCRIPTION"
.IX Header "DESCRIPTION"
This module implements the environmental variables that Test::Harness uses with TAP::Harness, and instantiates the appropriate class with the appropriate arguments.
.SH "METHODS"
.IX Header "METHODS"
.IP "\(bu" 4
create( \e%args )
.Sp
This function reads the environment and generates an appropriate argument hash from it. If given any arguments in \f(CW%extra_args\fR, these will override the environmental defaults. In accepts \f(CW\*(C`harness_class\*(C'\fR (which defaults to \f(CW\*(C`TAP::Harness\*(C'\fR), and any argument the harness class accepts.
.SH "ENVIRONMENTAL VARIABLES"
.IX Header "ENVIRONMENTAL VARIABLES"
.ie n .IP """HARNESS_PERL_SWITCHES""" 4
.el .IP "\f(CWHARNESS_PERL_SWITCHES\fR" 4
.IX Item "HARNESS_PERL_SWITCHES"
Setting this adds perl command line switches to each test file run.
.Sp
For example, \f(CW\*(C`HARNESS_PERL_SWITCHES=\-T\*(C'\fR will turn on taint mode.
\&\f(CW\*(C`HARNESS_PERL_SWITCHES=\-MDevel::Cover\*(C'\fR will run \f(CW\*(C`Devel::Cover\*(C'\fR for
each test.
.ie n .IP """HARNESS_VERBOSE""" 4
.el .IP "\f(CWHARNESS_VERBOSE\fR" 4
.IX Item "HARNESS_VERBOSE"
If true, \f(CW\*(C`TAP::Harness\*(C'\fR will output the verbose results of running
its tests.
.ie n .IP """HARNESS_SUBCLASS""" 4
.el .IP "\f(CWHARNESS_SUBCLASS\fR" 4
.IX Item "HARNESS_SUBCLASS"
Specifies a TAP::Harness subclass to be used in place of TAP::Harness.
.ie n .IP """HARNESS_OPTIONS""" 4
.el .IP "\f(CWHARNESS_OPTIONS\fR" 4
.IX Item "HARNESS_OPTIONS"
Provide additional options to the harness. Currently supported options are:
.RS 4
.ie n .IP """j