             _ = try? [Person].decode(peopleJSON)
         }
     }
-#endif
 
     func testGroup() {
         var JSON: JSONDictionary = [ "name": "Himotoki", "floor": 12 ]

    static var allTests: [(String, (DecodableTest) -> () throws -> Void)] {
        return [
            ("testPerson", testPerson),
//            ("testPerformanceByPersons", testPerformanceByPersons),
            ("testGroup", testGroup),
            ("testDecodeArray", testDecodeArray),
            ("testDecodeDictionary", testDecodeDictionary),

        }
    }

    func testPerformanceByPersons() {
        let peopleJSON = Array(repeating: personJSON, count: 500)

