/* * Licensed to Elasticsearch under one or more contributor * license agreements. See the NOTICE file distributed with * this work for additional information regarding copyright * ownership. Elasticsearch licenses this file to you under * the Apache License, Version 2.0 (the "License"); you may * not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, * software distributed under the License is distributed on an * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY * KIND, either express or implied. See the License for the * specific language governing permissions and limitations * under the License. */ package org.elasticsearch.bwcompat; import org.elasticsearch.action.admin.cluster.health.ClusterHealthResponse; import org.elasticsearch.test.ESBackcompatTestCase; import org.junit.Test; import static org.hamcrest.Matchers.equalTo; /** * Tests that nodes of the backwards version can join a cluster with the * current version. This is the most basic possible backwards compatibity test. */ public class UnicastBackwardsCompatibilityIT extends ESBackcompatTestCase { @Test public void testUnicastDiscovery() { ClusterHealthResponse healthResponse = client().admin().cluster().prepareHealth().get(); assertThat(healthResponse.getNumberOfDataNodes(), equalTo(cluster().numDataNodes())); } }