/**
  * @covers Cron\AbstractField::isIncrementsOfRanges
  */
 public function testTestsIfIncrementsOfRanges()
 {
     $f = new DayOfWeekField();
     $this->assertFalse($f->isIncrementsOfRanges('1-2'));
     $this->assertTrue($f->isIncrementsOfRanges('1/2'));
     $this->assertTrue($f->isIncrementsOfRanges('*/2'));
     $this->assertTrue($f->isIncrementsOfRanges('3-12/2'));
 }