Omnipay\PayPal\RestGatewayTest::testPayWithSavedCard PHP Method

    public function testPayWithSavedCard()
    {
        $this->setMockHttpResponse('RestCreateCardSuccess.txt');
        $response = $this->gateway->createCard($this->options)->send();
        $cardRef = $response->getCardReference();
        $this->setMockHttpResponse('RestPurchaseSuccess.txt');
        $response = $this->gateway->purchase(array('amount' => '10.00', 'cardReference' => $cardRef))->send();
        $this->assertTrue($response->isSuccessful());
        $this->assertEquals('44E89981F8714392Y', $response->getTransactionReference());
        $this->assertNull($response->getMessage());
    }