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

        XCTAssertEqual(card.cvv, "123")
        XCTAssertTrue(card.shouldValidate)
        XCTAssertEqual(card.cardholderName, "Brian Tree")
        XCTAssertEqual(card.streetAddress, "123 Townsend St")
        XCTAssertEqual(card.locality, "San Francisco")
        XCTAssertEqual(card.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",
