def METHOD_NAME(self):
    """
    Tests time estimation of autofocus in roi
    """
    n_focus_points = 9
    min_time = n_focus_points * estimateAutoFocusTime(self.ccd, None)
    estimated_time = estimate_autofocus_in_roi_time(n_focus_points, self.ccd)
    self.assertGreaterEqual(estimated_time, min_time)