NSFileManagerAdditions.swift

//
//  Copyright (c) 2014 Tony Arnold & The CocoaBots. All rights reserved.

import Foundation

extension NSFileManager
{

    class func applicationSupportDirectoryURL() -> NSURL?
    {
        if let directories = self.defaultManager().URLsForDirectory(NSSearchPathDirectory.ApplicationSupportDirectory, inDomains: NSSearchPathDomainMask.UserDomainMask) as? Array<NSURL>
        {
            if (directories.count > 0)
            {
                return directories[0]
            }
        }

        return nil
    }
    
}

NSFileManagerAdditionsTests.swift

//
//  Copyright (c) 2014 Tony Arnold & The CocoaBots. All rights reserved.

import XCTest
import SwiftlyCoreData

class NSFileManagerAdditions: XCTestCase
{
    func testApplicationSupportDirectoryURLWorks()
    {
        let appSupport = NSFileManager.applicationSupportDirectoryURL()
        XCTAssertNotNil(appSupport, "Should not be nil")
    }
}