public function testCycleBackwardWithinBounds() { $c = new Collection(array('Mon', 'Tues', 'Weds', 'Thurs', 'Fri', 'Sat', 'Sun')); $c->setCyclePosition(5); $this->assertEquals('Fri', $c->cycleBackward(1)); $this->assertEquals('Mon', $c->cycleBackward(4)); }