use strict;
use warnings;
use Test::More tests => 6;
use constant EPS => 1e-2;

BEGIN { use_ok('Statistics::Sequences') };

my $seq = new_ok('Statistics::Sequences');
my @dat = (qw/H H H H H H H H H H D H D D D D H H H H H H H H H/);
# Load by array-ref:
eval { $seq->load(\@dat);};
ok(!$@);
eval {$seq->unload();};
ok(!$@);
# check minimal integration with Statistics::Data parent's load(), add() and access() methods:
$seq->load(coinflip => \@dat, otherdat => [1, 2, 3]);
my $data = $seq->access(label => 'coinflip');
ok(join(q{}, @{$data}) eq join('',@dat), 'Failed to access data');
$seq->add(otherdat => [4]);
$data = $seq->access(label => 'otherdat');
my $sum = 0;
$sum += $_ foreach @{$data};
ok($sum == 10, "Failed to read data");

sub equal {
    return 0 if ! defined $_[0] || ! defined $_[1];
    return 1 if $_[0] + EPS > $_[1] and $_[0] - EPS < $_[1];
    return 0;
}