File Coverage

blib/lib/Test/Stream/Plugin/SkipWithout.pm

Criterion	Covered	Total	%
statement	58	60	96.6
branch	13	16	81.2
condition	1	2	50.0
subroutine	13	13	100.0
pod	0	5	0.0
total	85	96	88.5

package Test::Stream::Plugin::SkipWithout;
use strict;
use warnings;

use Test::Stream::Context qw/context/;
use Test::Stream::Util qw/pkg_to_file/;
use Scalar::Util qw/reftype/;

use Test::Stream::Plugin;

sub load_ts_plugin {
    my $class = shift;
    my $caller = shift;
    for my $arg (@_) {
        if (ref $arg) {
            check_versions($caller, $arg);
        }
        elsif ($arg =~ m/^v?\d/) {
            check_perl_version($caller, $arg);
        }
        else {
            check_installed($caller, $arg);
        }
    }
}

sub skip {
    my ($msg) = @_;
    my $ctx = context();
    $ctx->plan(0, SKIP => $msg);
}

sub check_installed {
    my ($caller, $mod) = @_;
    my $file = pkg_to_file($mod);
    return if eval { require $file; 1 };
    my $error = $@;
    return skip("Module '$mod' is not installed")
        if $error =~ m/Can't locate \Q$file\E in \@INC/;

    # Some other error, rethrow it.
    die $error;
}

sub check_perl_version {
    my ($caller, $ver) = @_;
    return if eval "no warnings 'portable'; require $ver; 1";
    my $error = $@;
    if ($error =~ m/^(Perl \S* required)/i) {
        return skip($1);
    }

    # Other Error
    die $error;
}

sub check_versions {
    my ($caller, $ref) = @_;
    my $type = reftype($ref) || "";
    die "'$ref' is not a valid import argument to " . __PACKAGE__ . " at $caller->[1] line $caller->[2].\n"
        unless $type eq 'HASH';

    # Sort so that the order is always the same in output
    for my $mod (sort keys %$ref) {
        my $ver = $ref->{$mod};
        check_installed($caller, $mod);
        next if eval { $mod->VERSION($ver); 1 };
        chomp(my $error = $@);
        $error =~ s/ at .*$//;
        skip($error);
    }
}

1;

__END__