Swift Tower Test Interactive

SwiftTowerTestInteractive

func checkTower(dest:Stack<Int>, numberOfDisks:Int) -> Bool {
    var match = true
    var index = 1
    while match && dest.size() > 0 && index <= numberOfDisks {
        match = dest.pop() == index
        index++
    }
    return match
}

func testInteractiveTowerOfHanoi() {
    let towerStacks: [Tower: Stack<Int>] = [.Tower1: Stack<Int>(), .Tower2: Stack<Int>(), .Tower3: Stack<Int>()]
        
    let numberOfDisks = 4
    for var index = numberOfDisks; index > 0; index-- {
        towerStacks[.Tower1]?.push(index)
    }
        
    towerInteractive(numberOfDisks, towerStacks) //results in tower 2 as the destination
    XCTAssert(checkTower(towerStacks[.Tower2]!, numberOfDisks: numberOfDisks), "Pass")
}