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 * 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
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package org.elasticsearch.discovery.zen;

import org.elasticsearch.Version;
import org.elasticsearch.cluster.metadata.IndexMetaData;
import org.elasticsearch.cluster.metadata.MetaData;
import org.elasticsearch.common.settings.Settings;
import org.elasticsearch.test.ESTestCase;
import org.elasticsearch.test.VersionUtils;

public class MembershipActionTests extends ESTestCase {

    public void testPreventJoinClusterWithNewerIndices() {
        Settings.builder().build();
        MetaData.Builder metaBuilder = MetaData.builder();
        IndexMetaData indexMetaData = IndexMetaData.builder("test")
            .settings(settings(Version.CURRENT))
            .numberOfShards(1)
            .numberOfReplicas(1).build();
        metaBuilder.put(indexMetaData, false);
        MetaData metaData = metaBuilder.build();
        MembershipAction.ensureIndexCompatibility(Version.CURRENT, metaData);

        expectThrows(IllegalStateException.class, () ->
        MembershipAction.ensureIndexCompatibility(VersionUtils.getPreviousVersion(Version.CURRENT),
            metaData));
    }

    public void testPreventJoinClusterWithUnsupportedIndices() {
        Settings.builder().build();
        MetaData.Builder metaBuilder = MetaData.builder();
        IndexMetaData indexMetaData = IndexMetaData.builder("test")
            .settings(settings(VersionUtils.getPreviousVersion(Version.CURRENT
                .minimumIndexCompatibilityVersion())))
            .numberOfShards(1)
            .numberOfReplicas(1).build();
        metaBuilder.put(indexMetaData, false);
        MetaData metaData = metaBuilder.build();
        expectThrows(IllegalStateException.class, () ->
            MembershipAction.ensureIndexCompatibility(Version.CURRENT,
                metaData));
    }

    public void testSuccess() {
        Settings.builder().build();
        MetaData.Builder metaBuilder = MetaData.builder();
        IndexMetaData indexMetaData = IndexMetaData.builder("test")
            .settings(settings(VersionUtils.randomVersionBetween(random(),
                Version.CURRENT.minimumIndexCompatibilityVersion(), Version.CURRENT)))
            .numberOfShards(1)
            .numberOfReplicas(1).build();
        metaBuilder.put(indexMetaData, false);
        indexMetaData = IndexMetaData.builder("test1")
            .settings(settings(VersionUtils.randomVersionBetween(random(),
                Version.CURRENT.minimumIndexCompatibilityVersion(), Version.CURRENT)))
            .numberOfShards(1)
            .numberOfReplicas(1).build();
        metaBuilder.put(indexMetaData, false);
        MetaData metaData = metaBuilder.build();
            MembershipAction.ensureIndexCompatibility(Version.CURRENT,
                metaData);
    }
}