File Coverage

blib/lib/TAP/Formatter/Color.pm

Criterion	Covered	Total	%
statement	24	48	50.0
branch	4	16	25.0
condition	0	3	0.0
subroutine	7	9	77.7
pod	1	1	100.0
total	36	77	46.7

package TAP::Formatter::Color;

use strict;
use warnings;

use constant IS_WIN32 => ( $^O =~ /^(MS)?Win32$/ );

use base 'TAP::Object';

my $NO_COLOR;

BEGIN {
    $NO_COLOR = 0;

    if (IS_WIN32) {
        eval 'use Win32::Console';
        if ($@) {
            $NO_COLOR = $@;
        }
        else {
            my $console = Win32::Console->new( STD_OUTPUT_HANDLE() );

            # eval here because we might not know about these variables
            my $fg = eval '$FG_LIGHTGRAY';
            my $bg = eval '$BG_BLACK';

            *set_color = sub {
                my ( $self, $output, $color ) = @_;

                my $var;
                if ( $color eq 'reset' ) {
                    $fg = eval '$FG_LIGHTGRAY';
                    $bg = eval '$BG_BLACK';
                }
                elsif ( $color =~ /^on_(.+)$/ ) {
                    $bg = eval '$BG_' . uc($1);
                }
                else {
                    $fg = eval '$FG_' . uc($color);
                }

                # In case of colors that aren't defined
                $self->set_color('reset')
                  unless defined $bg && defined $fg;

                $console->Attr( $bg | $fg );
            };
        }
    }
    else {
        eval 'use Term::ANSIColor';
        if ($@) {
            $NO_COLOR = $@;
        }
        else {
            *set_color = sub {
                my ( $self, $output, $color ) = @_;
                $output->( color($color) );
            };
        }
    }

    if ($NO_COLOR) {
        *set_color = sub { };
    }
}

=head1 NAME

TAP::Formatter::Color - Run Perl test scripts with color

=head1 VERSION

Version 3.39

=cut

our $VERSION = '3.39';

=head1 DESCRIPTION

Note that this harness is I.  You may not like the colors I've
chosen and I haven't yet provided an easy way to override them.

This test harness is the same as L, but test results are output
in color.  Passing tests are printed in green.  Failing tests are in red.
Skipped tests are blue on a white background and TODO tests are printed in
white.

If L cannot be found (or L if running
under Windows) tests will be run without color.

=head1 SYNOPSIS

 use TAP::Formatter::Color;
 my $harness = TAP::Formatter::Color->new( \%args );
 $harness->runtests(@tests);

=head1 METHODS

=head2 Class Methods

=head3 C

The constructor returns a new C object. If
L is not installed, returns undef.

=cut

# new() implementation supplied by TAP::Object

sub _initialize {
    my $self = shift;

    if ($NO_COLOR) {

        # shorten that message a bit
        ( my $error = $NO_COLOR ) =~ s/ in \@INC .*//s;
        warn "Note: Cannot run tests in color: $error\n";
        return;    # abort object construction
    }

    return $self;
}

##############################################################################

=head3 C

  Test::Formatter::Color->can_color()

Returns a boolean indicating whether or not this module can actually
generate colored output. This will be false if it could not load the
modules needed for the current platform.

=cut

sub can_color {
    return !$NO_COLOR;
}

=head3 C

Set the output color.

=cut

1;