ApaiIO\Operations\Search::getAvailability PHP 메소드

    public function getAvailability()
    {
        return $this->getSingleOperationParameter('Availability');
    }

 public function testGetAvailability()
 {
     $search = new Search();
     static::assertEquals(null, $search->getAvailability());
     $search->setAvailability('Available');
     static::assertEquals('Available', $search->getAvailability());
 }