     <-rx3
     rx3.close()
     XCTAssert(rx3.isClosed)
-
-    let _ = Timer()
 
     let dt = mach_absolute_time() - start
     XCTAssert(dt > numericCast(2*delay))


class TimerTests: XCTestCase
{
  func testTimer()
  {
    let start = mach_absolute_time()

    let delay: Int64 = 5_000_000

    let time1 = dispatch_time(DISPATCH_TIME_NOW, delay)
    let rx1 = Timer(time1)


    for var i = 0, j = 0; i < 10; j++
    {
      let timer = Timer(delay: delay)
      if let selection = select(selectables + [timer])
      {
        XCTAssert(j == i)
        switch selection.id
        {
        case let s where s === timer: XCTFail("Timer never sets the selection")
        case _ as Sender<Int>:        XCTFail("Incorrect selection")
        case _ as Receiver<Int>:      XCTFail("Incorrect selection")
        default: i++
        }
      }
    }
