org.springframework.amqp.rabbit.connection.ClientRecoveryCompatibilityTests.java Source code

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Here is the source code for org.springframework.amqp.rabbit.connection.ClientRecoveryCompatibilityTests.java

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/*
 * Copyright 2014-2016 the original author or authors.
 *
 * 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 org.springframework.amqp.rabbit.connection;

import static org.hamcrest.Matchers.equalTo;
import static org.junit.Assert.assertSame;
import static org.junit.Assert.assertThat;
import static org.junit.Assert.fail;
import static org.mockito.Matchers.any;
import static org.mockito.Matchers.anyString;
import static org.mockito.Mockito.doAnswer;
import static org.mockito.Mockito.mock;
import static org.mockito.Mockito.never;
import static org.mockito.Mockito.verify;
import static org.mockito.Mockito.when;

import java.util.concurrent.ExecutorService;

import org.junit.Test;

import com.rabbitmq.client.Channel;
import com.rabbitmq.client.impl.recovery.AutorecoveringConnection;

/**
 * @author Gary Russell
 * @author Artem Bilan
 * @since 1.4
 *
 */
public class ClientRecoveryCompatibilityTests {

    @Test
    public void testDefeatRecovery() throws Exception {
        final Channel channel1 = mock(Channel.class);
        when(channel1.isOpen()).thenReturn(true);
        final Channel channel2 = mock(Channel.class);
        when(channel2.isOpen()).thenReturn(true);
        final com.rabbitmq.client.Connection rabbitConn = mock(AutorecoveringConnection.class);
        when(rabbitConn.isOpen()).thenReturn(true);
        com.rabbitmq.client.ConnectionFactory cf = mock(com.rabbitmq.client.ConnectionFactory.class);
        doAnswer(invocation -> rabbitConn).when(cf).newConnection(any(ExecutorService.class), anyString());
        when(rabbitConn.createChannel()).thenReturn(channel1).thenReturn(channel2);

        CachingConnectionFactory ccf = new CachingConnectionFactory(cf);
        Connection conn1 = ccf.createConnection();
        Channel channel = conn1.createChannel(false);
        verifyChannelIs(channel1, channel);
        channel.close();
        conn1.close();
        Connection conn2 = ccf.createConnection();
        assertSame(conn1, conn2);
        channel = conn1.createChannel(false);
        verifyChannelIs(channel1, channel);
        channel.close();
        conn2.close();

        when(rabbitConn.isOpen()).thenReturn(false).thenReturn(true);
        when(channel1.isOpen()).thenReturn(false);
        conn2 = ccf.createConnection();
        try {
            conn2.createChannel(false);
            fail("Expected AutoRecoverConnectionNotCurrentlyOpenException");
        } catch (AutoRecoverConnectionNotCurrentlyOpenException e) {
            assertThat(e.getMessage(), equalTo("Auto recovery connection is not currently open"));
        }
        channel = conn2.createChannel(false);
        verifyChannelIs(channel2, channel);
        channel.close();

        verify(rabbitConn, never()).close();
        verify(channel1).close(); // physically closed to defeat recovery
    }

    private void verifyChannelIs(Channel mockChannel, Channel channel) {
        ChannelProxy proxy = (ChannelProxy) channel;
        assertSame(mockChannel, proxy.getTargetChannel());
    }

}