public function testCountDataItems()
{
$storage1 = $this->getMock('ezcCacheStackableStorage', array('reset', 'purge', 'countDataItems'));
$storage1->expects($this->once())->method('countDataItems')->with('foo', array())->will($this->returnValue(2));
$storage2 = $this->getMock('ezcCacheStackableStorage', array('reset', 'purge', 'countDataItems'));
$storage2->expects($this->once())->method('countDataItems')->with('foo', array())->will($this->returnValue(1));
$stack = new ezcCacheStack('foo');
$stack->pushStorage(new ezcCacheStackStorageConfiguration('id_1', $storage1, 10, 0.5));
$stack->pushStorage(new ezcCacheStackStorageConfiguration('id_2', $storage2, 100, 0.7));
$this->assertEquals(3, $stack->countDataItems('foo'));
}
