mageekguy\atoum\asserter::__call PHP Method

    public function __call($method, $arguments)
    {
        switch ($method) {
            case 'foreach':
                if (isset($arguments[0]) === false || is_array($arguments[0]) === false && $arguments[0] instanceof \traversable === false) {
                    throw new exceptions\logic\invalidArgument('First argument of ' . get_class($this) . '::' . $method . '() must be an array or a \\traversable instance');
                } else {
                    if (isset($arguments[1]) === false || $arguments[1] instanceof \closure === false) {
                        throw new exceptions\logic\invalidArgument('Second argument of ' . get_class($this) . '::' . $method . '() must be a closure');
                    }
                }
                foreach ($arguments[0] as $key => $value) {
                    call_user_func_array($arguments[1], array($this, $value, $key));
                }
                return $this;
            default:
                return $this->generator->__call($method, $arguments);
        }
    }

 public function __call($method, $arguments)
 {
     switch (strtolower($method)) {
         case 'equalto':
             return call_user_func_array(array($this, 'isEqualTo'), $arguments);
         default:
             return parent::__call($method, $arguments);
     }
 }