BrokerVersionFilterTest.java

/**
 * Copyright 2016 Yahoo Inc.
 *
 * Licensed 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 com.yahoo.pulsar.broker.loadbalance;

import java.util.Set;
import java.util.TreeSet;

import com.yahoo.pulsar.broker.loadbalance.impl.BrokerVersionFilter;
import org.testng.Assert;
import org.testng.annotations.Test;

import com.yahoo.pulsar.broker.BrokerData;
import com.yahoo.pulsar.broker.LocalBrokerData;
import com.yahoo.pulsar.broker.ServiceConfiguration;
import com.github.zafarkhaja.semver.Version;


public class BrokerVersionFilterTest {

    @Test
    public void testLatestVersion() {
        LoadData loadData = initLoadData();
        Set<String> brokers = new TreeSet<>();
        brokers.add("broker1");
        brokers.add("broker2");
        brokers.add("broker3");

        BrokerVersionFilter filter = new BrokerVersionFilter();
        try {
            Version latestVersion = filter.getLatestVersionNumber(brokers, loadData);
            Assert.assertEquals(latestVersion.getMajorVersion(), 1);
            Assert.assertEquals(latestVersion.getMinorVersion(), 2);
            Assert.assertEquals(latestVersion.getPatchVersion(), 0);
        } catch (BrokerFilterBadVersionException bad) {
            Assert.fail(bad.getMessage(), bad);
        }

        ServiceConfiguration configuration = new ServiceConfiguration();
        configuration.setPreferLaterVersions(true);
        try {
            filter.filter(brokers, null, loadData, configuration);
            // Only one broker is running the latest version
            Assert.assertEquals(brokers.size(), 1);
        } catch (BrokerFilterBadVersionException bad) {
            Assert.fail(bad.getMessage(), bad);
        }
    }

    private LoadData initLoadData() {
        LocalBrokerData broker1Data = new LocalBrokerData();
        broker1Data.setBrokerVersionString("1.1.0-SNAPSHOT");

        LocalBrokerData broker2Data = new LocalBrokerData();
        broker2Data.setBrokerVersionString("1.1.0-SNAPSHOT");

        LocalBrokerData broker3Data = new LocalBrokerData();
        broker3Data.setBrokerVersionString("1.2.0-SNAPSHOT");

        LoadData loadData = new LoadData();
        loadData.getBrokerData().put("broker1", new BrokerData(broker1Data));
        loadData.getBrokerData().put("broker2", new BrokerData(broker2Data));
        loadData.getBrokerData().put("broker3", new BrokerData(broker3Data));

        return loadData;
    }
}