pulsar-broker/src/test/java/org/apache/pulsar/client/impl/ConsumerUnsubscribeTest.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
 * under the License.
 */
package org.apache.pulsar.client.impl;

import static org.testng.Assert.assertEquals;

import lombok.Cleanup;
import org.apache.pulsar.client.api.Consumer;
import org.apache.pulsar.client.api.MockBrokerService;
import org.apache.pulsar.client.api.PulsarClient;
import org.testng.annotations.AfterClass;
import org.testng.annotations.BeforeClass;
import org.testng.annotations.Test;

@Test(groups = "broker-impl")
public class ConsumerUnsubscribeTest {

    MockBrokerService mockBrokerService;

    @BeforeClass(alwaysRun = true)
    public void setup() {
        mockBrokerService = new MockBrokerService();
        mockBrokerService.start();
    }

    @AfterClass(alwaysRun = true)
    public void teardown() {
        if (mockBrokerService != null) {
            mockBrokerService.stop();
            mockBrokerService = null;
        }
    }

    @Test
    public void testConsumerUnsubscribeReference() throws Exception {
        @Cleanup
        PulsarClientImpl client = (PulsarClientImpl) PulsarClient.builder()
                .serviceUrl(mockBrokerService.getBrokerAddress())
                .build();

        Consumer<?> consumer = client.newConsumer().topic("persistent://public/default/t1").subscriptionName("sub1").subscribe();
        consumer.unsubscribe();

        assertEquals(client.consumersCount(), 0);
    }
}