billingFirstName() 공개 정적인 메소드

public static billingFirstName ( )
 public function test_noRequestsWhenIterating()
 {
     $resultsReturned = false;
     $collection = Braintree\Transaction::search([Braintree\TransactionSearch::billingFirstName()->is('thisnameisnotreal')]);
     foreach ($collection as $transaction) {
         $resultsReturned = true;
         break;
     }
     $this->assertSame(0, $collection->maximumCount());
     $this->assertEquals(false, $resultsReturned);
 }