             }
         }
     }
-    
-    var isAsync: Bool { return false }
-    
-    func perform(after: NSTimeInterval = 0.01, closure: Void -> Void)
-    {
-        if self.isAsync {
-            dispatch_after(dispatch_time(DISPATCH_TIME_NOW, Int64(1_000_000_000 * after)), dispatch_get_main_queue(), closure)
-        }
-        else {
-            closure()
-        }
-    }
 }

class _TestCase: XCTestCase
{
    override func setUp()
    {
        super.setUp()

        super.tearDown()
    }
    
    func perform(after: NSTimeInterval = 0.01, closure: Void -> Void)
    {
        self.timeInterval = after
        
        if self.isAsync {
            dispatch_after(dispatch_time(DISPATCH_TIME_NOW, Int64(1_000_000_000 * self.timeInterval)), dispatch_get_main_queue(), closure)
        }
        else {
            closure()
        }
    }
    
    func wait(filename: String = __FILE__, functionName: String = __FUNCTION__, line: Int = __LINE__)
    {
        self.waitForExpectationsWithTimeout(self.timeInterval + 1) { error in
            if let error = error {
                println()
                println("*** Wait Error ***")
