         XCTAssertEqual(card.cvv, "123")
         XCTAssertTrue(card.shouldValidate)
         XCTAssertEqual(card.cardholderName, "Brian Tree")
+        XCTAssertEqual(card.firstName, "Joe")
+        XCTAssertEqual(card.lastName, "Smith")
         XCTAssertEqual(card.streetAddress, "123 Townsend St")
         XCTAssertEqual(card.locality, "San Francisco")
         XCTAssertEqual(card.region, "CA")

            "expiration_date": "12/20",
            "cvv": "123",
            "billing_address": [
                "street_address": "123 Townsend St",
                "locality": "San Francisco",
                "region": "CA",

            "expiration_date": "12/20",
            "cvv": "123",
            "billing_address": [
                "first_name": "Joe",
                "last_name": "Smith",
                "street_address": "123 Townsend St",
                "locality": "San Francisco",
                "region": "CA",
