BEGIN {
	require Config;
	if (($Config::Config{'extensions'} !~ m!\bList/Util\b!) ){
	    print "1..0 # Skip -- Perl configured without List::Util module\n";
	    exit 0;
	}

	# `make test` in the CPAN version of this module runs us with -w, but
	# Dumpvalue.pm relies on all sorts of things that can cause warnings. I
	# don't think that's worth fixing, so we just turn off all warnings
	# during testing.
	$^W = 0;
}

use lib ("./t/lib");
use TieOut;
use Test::More tests => 17;

use_ok( 'Dumpvalue' );

my $d;
ok( $d = Dumpvalue->new(), 'create a new Dumpvalue object' );

my $out = tie *OUT, 'TieOut';
select(OUT);

my (@foobar, $x, $y);

@foobar = ('foo', 'bar');
$d->dumpValue([@foobar]);
$x = $out->read;
is( $x, "0  'foo'\n1  'bar'\n", 'dumpValue worked on array ref' );
$d->dumpValues(@foobar);
$y = $out->read;
is( $y, "0  'foo'\n1  'bar'\n", 'dumpValues worked on array' );
is( $y, $x,
    "dumpValues called on array returns same as dumpValue on array ref");

@foobar = (undef, 'bar');
$d->dumpValue([@foobar]);
$x = $out->read;
is( $x, "0  empty slot\n1  'bar'\n",
    'dumpValue worked on array ref, first element undefined' );
$d->dumpValues(@foobar);
$y = $out->read;
is( $y, "0  empty slot\n1  'bar'\n",
    'dumpValues worked on array, first element undefined' );
is( $y, $x,
    "dumpValues called on array returns same as dumpValue on array ref, first element undefined");

@foobar = ('bar', undef);
$d->dumpValue([@foobar]);
$x = $out->read;
is( $x, "0  'bar'\n1  empty slot\n",
    'dumpValue worked on array ref, last element undefined' );
$d->dumpValues(@foobar);
$y = $out->read;
is( $y, "0  'bar'\n1  empty slot\n",
    'dumpValues worked on array, last element undefined' );
is( $y, $x,
    "dumpValues called on array returns same as dumpValue on array ref, last element undefined");

@foobar = ('', 'bar');
$d->dumpValue([@foobar]);
$x = $out->read;
is( $x, "0  ''\n1  'bar'\n",
    'dumpValue worked on array ref, first element empty string' );
$d->dumpValues(@foobar);
$y = $out->read;
is( $y, "0  ''\n1  'bar'\n",
    'dumpValues worked on array, first element empty string' );
is( $y, $x,
    "dumpValues called on array returns same as dumpValue on array ref, first element empty string");

@foobar = ('bar', '');
$d->dumpValue([@foobar]);
$x = $out->read;
is( $x, "0  'bar'\n1  ''\n",
    'dumpValue worked on array ref, last element empty string' );
$d->dumpValues(@foobar);
$y = $out->read;
is( $y, "0  'bar'\n1  ''\n",
    'dumpValues worked on array, last element empty string' );
is( $y, $x,
    "dumpValues called on array returns same as dumpValue on array ref, last element empty string");