public function testThatItCreatesAStackDeterminer()
{
$manager = new DeterminerManager($this->app);
$determiner = $manager->driver('stack');
$this->assertInstanceOf(Determiners\Stack::class, $determiner);
$this->assertCount(1, $determiner->getDeterminers());
$this->assertInstanceOf(Determiners\Parameter::class, $determiner->getDeterminers()->first());
}