use Test::More tests => 26;
use Test::Deep;
use Test::Data::Scalar;

{
    package MyClass;
    use Mouse;
    use MouseX::AttributeHelpers;

    has 'options' => (
        metaclass => 'Collection::ImmutableHash',
        is        => 'rw',
        isa       => 'HashRef',
        default   => sub { +{} },
        provides  => {
            exists => 'has_option_for',
            get    => 'get_option',
            keys   => 'option_keys',
            values => 'option_values',
            kv     => 'each_options',
            count  => 'num_options',
            empty  => 'has_options',
        },
    );
}

my $obj = MyClass->new(
    options => {
        foo => 1,
        bar => 2,
        baz => 3,
    },
);

my @providers = qw(
    has_option_for get_option option_keys option_values
    each_options num_options has_options
);
for my $method (@providers) {
    can_ok $obj => $method;
}

cmp_deeply $obj->options => { foo => 1, bar => 2, baz => 3 }, 'get value ok, no options yet';

# provides
ok $obj->has_options, 'provides empty ok';
is $obj->num_options => 3, 'provides count ok, we have three options';

is $obj->get_option('foo') => 1, 'provides get ok';
is $obj->get_option('bar') => 2, 'provides get ok';
is $obj->get_option('baz') => 3, 'provides get ok';
cmp_deeply [ sort $obj->option_keys ] => [qw(bar baz foo)], 'provides keys ok';
cmp_deeply [ sort $obj->option_values ] => [qw(1 2 3)], 'provides values ok';

for my $kv ($obj->each_options) {
    ref_type_ok $kv => [], 'provides kv ok, type';
    my ($k, $v) = @$kv;
    like $k => qr/^(?:foo|bar|baz)$/, 'provides kv ok, key';
    like $v => qr/^[1-3]$/, 'provides kv ok, value';
}

ok $obj->has_option_for('foo'), 'provides exists ok';
ok !$obj->has_option_for('quux'), 'provides exists ok, not exist keys';