//
//  Poly1305Tests.swift
//  CryptoSwift
//
//  Created by Marcin Krzyzanowski on 29/08/14.
//  Copyright (c) 2014 Marcin Krzyzanowski. All rights reserved.
//
import XCTest
import Foundation
@testable import CryptoSwift

final class Poly1305Tests: XCTestCase {

    func testPoly1305() {
        let key: Array<UInt8> = [0xdd, 0xde, 0xdf, 0xe0, 0xe1, 0xe2, 0xe3, 0xe4, 0xe5, 0xe6, 0xe7, 0xe8, 0xe9, 0xea, 0xeb, 0xec, 0xed, 0xee, 0xef, 0xf0, 0xf1, 0xf2, 0xf3, 0xf4, 0xf5, 0xf6, 0xf7, 0xf8, 0xf9, 0xfa, 0xfb, 0xfc]
        let msg: Array<UInt8> = [0x79, 0x7a, 0x7b, 0x7c, 0x7d, 0x7e, 0x7f, 0x80, 0x81, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87, 0x88, 0x89, 0x8a, 0x8b, 0x8c, 0x8d, 0x8e, 0x8f, 0x90, 0x91, 0x92, 0x93, 0x94, 0x95, 0x96, 0x97, 0x98, 0x99, 0x9a, 0x9b, 0x9c, 0x9d, 0x9e, 0x9f, 0xa0, 0xa1, 0xa2, 0xa3, 0xa4, 0xa5, 0xa6, 0xa7, 0xa8, 0xa9, 0xaa, 0xab, 0xac, 0xad, 0xae, 0xaf, 0xb0, 0xb1, 0xb2, 0xb3, 0xb4, 0xb5, 0xb6, 0xb7, 0xb8, 0xb9, 0xba, 0xbb, 0xbc, 0xbd, 0xbe, 0xbf, 0xc0, 0xc1]
        let expectedMac: Array<UInt8> = [0xdd, 0xb9, 0xda, 0x7d, 0xdd, 0x5e, 0x52, 0x79, 0x27, 0x30, 0xed, 0x5c, 0xda, 0x5f, 0x90, 0xa4]

        let mac = try! Poly1305(key: key).authenticate(msg)
        XCTAssertEqual(mac, expectedMac, "Invalid authentication result")

        // extensions
        let msgData = Data(bytes: msg)
        let mac2 = try! msgData.authenticate(with: Poly1305(key: key))
        XCTAssertEqual(mac2, Data(bytes: expectedMac), "Invalid authentication result")
    }

    static let allTests = [
        ("testPoly1305", testPoly1305),
    ]
}