config.setMaxNodes(-1);
config.setMinNodes(2);
region.registerEvictionEvent(fqn1, ADD_NODE_EVENT);
region.registerEvictionEvent(fqn2, ADD_NODE_EVENT);
region.registerEvictionEvent(fqn3, ADD_NODE_EVENT);
region.registerEvictionEvent(fqn4, ADD_NODE_EVENT);
algo.process(region.getEvictionEventQueue());
assertEquals("Queue size should be ", 2, algo.getEvictionQueue().getNumberOfNodes());