// into subsequent TestSignal() causing failure.
	// Sleep for a while to reduce the possibility of the failure.
	time.Sleep(10 * time.Millisecond)
}

// Test that Stop cancels the channel's registrations.
func TestStop(t *testing.T) {
	if testing.Short() {
		t.Skip("skipping in short mode")
	}
	sigs := []string{
		"alarm",
		"hangup",
	}

	for _, sig := range sigs {
		// Send the signal.

    stopwatch.start();
    try {
      stopwatch.start();
      fail();
    } catch (IllegalStateException expected) {
    }
    assertTrue(stopwatch.isRunning());
  }

  public void testStop() {
    stopwatch.start();
    assertSame(stopwatch, stopwatch.stop());
    assertFalse(stopwatch.isRunning());
  }

  public void testStop_new() {
    try {
      stopwatch.stop();
      fail();

		}
	}
}

var (
	sendUncaughtSighup = flag.Int("send_uncaught_sighup", 0, "send uncaught SIGHUP during TestStop")
	dieFromSighup      = flag.Bool("die_from_sighup", false, "wait to die from uncaught SIGHUP")
)

// Test that Stop cancels the channel's registrations.
func TestStop(t *testing.T) {
	sigs := []syscall.Signal{
		syscall.SIGWINCH,
		syscall.SIGHUP,
		syscall.SIGUSR1,
	}