public function testPredicate()
{
$path = __DIR__ . '/fixtures/datastore/querytest';
$config = new Config($path . '/');
$repo = new Repository('countries', $config);
$query = new Query($repo);
$query->where('cca2', '==', 'GB');
$predicate = new Predicate();
$predicate->where('cca2', '==', 'GB');
$this->assertAttributeEquals($predicate, 'predicate', $query);
}