public function testDeleteWithScope()
{
$adapter = new Apc(array('scope' => 'primary'));
apc_store('primary:key1', 'test1', 60);
apc_store('key1', 'test2', 60);
$keys = array('key1');
$expected = array('key1' => 'test1');
$adapter->delete($keys);
$result = apc_exists('key1');
$this->assertTrue($result);
$result = apc_exists('primary:key1');
$this->assertFalse($result);
}