public function testTestsIfInRange()
{
$f = new DayOfWeekField();
$this->assertTrue($f->isInRange(1, '1-2'));
$this->assertTrue($f->isInRange(2, '1-2'));
$this->assertTrue($f->isInRange(5, '4-12'));
$this->assertFalse($f->isInRange(3, '4-12'));
$this->assertFalse($f->isInRange(13, '4-12'));
}