         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)

        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
    


import XCTest

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