public function shouldAllowCreateGateway()
{
$factory = new PaypalMasspayGatewayFactory();
$gateway = $factory->create(array('username' => 'aName', 'password' => 'aPass', 'signature' => 'aSign'));
$this->assertInstanceOf(Gateway::class, $gateway);
$this->assertAttributeNotEmpty('apis', $gateway);
$this->assertAttributeNotEmpty('actions', $gateway);
$extensions = $this->readAttribute($gateway, 'extensions');
$this->assertAttributeNotEmpty('extensions', $extensions);
}