pulsar-broker/src/test/java/org/apache/pulsar/broker/service/BusyWaitServiceTest.java

/**
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF 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.apache.pulsar.broker.service;

import java.util.UUID;
import java.util.concurrent.TimeUnit;
import lombok.Cleanup;
import org.apache.pulsar.broker.ServiceConfiguration;
import org.apache.pulsar.client.api.Consumer;
import org.apache.pulsar.client.api.Message;
import org.apache.pulsar.client.api.Producer;
import org.apache.pulsar.client.api.PulsarClient;
import org.apache.pulsar.client.api.Schema;
import org.testng.annotations.Test;

import static org.testng.Assert.assertEquals;
import static org.testng.Assert.assertNotNull;

@Test(groups = "broker")
public class BusyWaitServiceTest extends BkEnsemblesTestBase {
    public BusyWaitServiceTest() {
        super(1);
    }

    protected void configurePulsar(ServiceConfiguration config) {
        config.setEnableBusyWait(true);
        config.setManagedLedgerDefaultEnsembleSize(1);
        config.setManagedLedgerDefaultWriteQuorum(1);
        config.setManagedLedgerDefaultAckQuorum(1);
    }

    @Test
    public void testPublishWithBusyWait() throws Exception {

        @Cleanup
        PulsarClient client = PulsarClient.builder()
                .serviceUrl(pulsar.getWebServiceAddress())
                .statsInterval(0, TimeUnit.SECONDS)
                .enableBusyWait(true)
                .build();

        String namespace = "prop/busy-wait";
        admin.namespaces().createNamespace(namespace);

        String topic = namespace + "/my-topic-" + UUID.randomUUID();

        @Cleanup
        Consumer<String> consumer = client.newConsumer(Schema.STRING)
                .topic(topic)
                .subscriptionName("test")
                .subscribe();

        @Cleanup
        Producer<String> producer = client.newProducer(Schema.STRING)
                .topic(topic)
                .create();

        for (int i = 0; i < 10; i++) {
            producer.send("my-message-" + i);
        }

        for (int i = 0; i < 10; i++) {
            Message<String> msg = consumer.receive();
            assertNotNull(msg);
            assertEquals(msg.getValue(), "my-message-" + i);
            consumer.acknowledge(msg);
        }
    }
}