         expectedDate = dateFormatter.dateFromString("20/10/1987 22:17:18")
         result = startDate?.add(seconds: -42, minutes: -42, hours: -1, days: -2, weeks: -1 , months: -1, years: -1)
         XCTAssertEqual(expectedDate!, result!, "Date mismatch")
-        
-        
+
     }
-    
     
     // MARK:  Date comparison
     

        startDate = dateFormatter.dateFromString("30/11/1988 00:00:00")
    }
    
    override func tearDown() {
        super.tearDown()
    }
    
    
    // MARK:  NSDate Manipulation
    
    func testAddSeconds() {
        var expectedDate = dateFormatter.dateFromString("30/11/1988 00:00:42")
        var result = startDate?.addSeconds(42)


import XCTest

class ExSwiftNSDataTests: XCTestCase {
    
    let dateFormatter = NSDateFormatter()
    var startDate: NSDate?
