Altax\Foundation\Container::get PHP Method

    public function get($key, $default = null, $delimiter = '/')
    {
        $instances = $this->instances;
        foreach (explode($delimiter, $key) as $k) {
            $instances = isset($instances[$k]) ? $instances[$k] : $default;
        }
        return $instances;
    }

 public function testDelete()
 {
     $container = new Container();
     $container->set("foo", "bar");
     $container->delete("foo");
     $this->assertEquals(null, $container->get("foo"));
 }