/**
* Run tests to ensure the output is correct for add/remove/getShift(s)
*
* @return void
*/
public function testShift()
{
$shift = $this->getMock('\\OpenSkedge\\AppBundle\\Entity\\Shift');
$schedule = new Schedule();
$schedule->addShift($shift);
$shifts = $schedule->getShifts();
$this->assertInstanceOf('\\OpenSkedge\\AppBundle\\Entity\\Shift', $shifts[0]);
$schedule->removeShift($shift);
$this->assertTrue($schedule->getShifts()->isEmpty());
}