// Executed with optimization -Os on a MacBook Pro (15-inch, 2017) 2,8 GHz Intel Core i7
class StringPerformanceTest: XCTestCase {

    // Takes on average 0.062 sec
    func testPerformanceOfUTF8View() {
        let data = "_cqeFf~cjVf@p@fA}AtAoB`ArAx@hA`GbIvDiFv@gAh@t@X\\|@z@`@Z\\Xf@Vf@VpA\\tATJ@NBBkC".data(using: .utf8)!
        let string = String(decoding: data, as: UTF8.self)
        measure {
            for _ in 0 ... 10000 {
                var count = 0
                for _ in string.utf8 {
                    count += 1
                }
            }
        }
    }

    // Takes on average 0.026 sec
    func testPerformanceOfData() {
        let data = "_cqeFf~cjVf@p@fA}AtAoB`ArAx@hA`GbIvDiFv@gAh@t@X\\|@z@`@Z\\Xf@Vf@VpA\\tATJ@NBBkC".data(using: .utf8)!
        let string = String(decoding: data, as: UTF8.self)
        measure {
            for _ in 0 ... 10000 {
                var count = 0
                for _ in string.data(using: .utf8)! {
                    count += 1
                }
            }
        }
    }
}