newsupernova/vendor/braintree/braintree_php/tests/unit/InstanceTest.php

<?php
namespace Test\Unit;

require_once dirname(__DIR__) . '/Setup.php';

use Test\Setup;
use Braintree;

class InstanceTest extends Setup
{
    public function test__isset()
    {
      $transaction = Braintree\Transaction::factory([
        'creditCard' => [
          'expirationMonth' => '05',
          'expirationYear' => '2010',
          'bin' => '510510',
          'last4' => '5100',
          'cardType' => 'MasterCard',
        ],
      ]);
      $this->assertEquals('MasterCard', $transaction->creditCardDetails->cardType);
      $this->assertFalse(empty($transaction->creditCardDetails->cardType));
      $this->assertTrue(isset($transaction->creditCardDetails->cardType));

      $transaction = Braintree\Transaction::factory([
        'creditCard' => [
          'expirationMonth' => '05',
          'expirationYear' => '2010',
          'bin' => '510510',
          'last4' => '5100',
        ],
      ]);
      $this->assertTrue(empty($transaction->creditCardDetails->cardType));
      $this->assertFalse(isset($transaction->creditCardDetails->cardType));
    }
}