public function testStorageUnit()
{
$rack = new Rack();
$incubator = new Incubator();
$incubator->setTemperature(28);
$this->assertNull($rack->getStorageUnit());
$rack->setStorageUnit($incubator);
$this->assertEquals($incubator, $rack->getStorageUnit());
return $rack;
}
protected function getPosition()
{
$incubator = new Incubator();
$incubator->setName('Test');
$incubator->setTemperature(28);
$rack = new Rack(1, 1);
$rack->setStorageUnit($incubator);
return new RackPosition($rack, 1, 1);
}
