public function testSaveOverwritesIfFastIsFull()
{
$slowBackend = 'File';
$fastBackend = $this->getMock('Zend_Cache_Backend_Apc', array('getFillingPercentage'));
$fastBackend->expects($this->at(0))->method('getFillingPercentage')->will($this->returnValue(0));
$fastBackend->expects($this->at(1))->method('getFillingPercentage')->will($this->returnValue(90));
$slowBackendOptions = array('cache_dir' => $this->_cache_dir);
$cache = new Zend_Cache_Backend_TwoLevels(array('fast_backend' => $fastBackend, 'slow_backend' => $slowBackend, 'slow_backend_options' => $slowBackendOptions, 'stats_update_factor' => 1));
$id = 'test' . uniqid();
$cache->save(10, $id);
//fast usage at 0%
$cache->save(100, $id);
//fast usage at 90%
$this->assertEquals(100, $cache->load($id));
}
