use strict;
use warnings;
use Test::More 0.88;
{
    package MySingleton;
    use MooseX::Singleton;
    has 'attrib' =>
        is      => 'rw',
        isa     => 'Str',
        default => 'foo';
    sub hello {'world'}
    sub BUILDARGS {
        my ( $class, %opts ) = @_;
        { attrib => 'bar', %opts };
    }
    __PACKAGE__->meta->make_immutable;
}
is(
    MySingleton->attrib, 'bar',
    'BUILDARGS changed value of attrib when instance was auto-instantiated'
);
MySingleton->meta->remove_package_glob('singleton');
MySingleton->instance;
is(
    MySingleton->attrib, 'bar',
    'BUILDARGS changed value of attrib when instance was explicitly instantiated'
);
done_testing;