function it_can_tell_me_if_it_overlaps_another_range($start, Range $range)
 {
     $range->in($start)->willReturn(true);
     $this->overlap($range)->shouldReturn(true);
 }
 public function overlaps(Range $range)
 {
     $start = $range->in($this->getStart());
     $end = $range->in($this->getStart());
     return $start || $end;
 }