+
+ $cache->flush_L1_cache();
+ $item_from_cache = $cache->get_from_cache('test_deep_copy_array');
+ @$item_from_cache = qw( another array ref );
+ is_deeply( $cache->get_from_cache('test_deep_copy_array'), [ qw ( an array ref ) ], 'An array will be deep copied even it is the first fetch from L2');
+