org.neo4j.bolt.v1.transport.socket.SocketTransportHandlerTest.java Source code

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Here is the source code for org.neo4j.bolt.v1.transport.socket.SocketTransportHandlerTest.java

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/*
 * Copyright (c) 2002-2016 "Neo Technology,"
 * Network Engine for Objects in Lund AB [http://neotechnology.com]
 *
 * This file is part of Neo4j.
 *
 * Neo4j is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
package org.neo4j.bolt.v1.transport.socket;

import io.netty.buffer.ByteBuf;
import io.netty.buffer.UnpooledByteBufAllocator;
import io.netty.channel.Channel;
import io.netty.channel.ChannelHandlerContext;
import org.junit.Test;

import java.util.function.BiFunction;

import org.neo4j.bolt.transport.BoltProtocol;
import org.neo4j.bolt.transport.SocketTransportHandler;
import org.neo4j.bolt.v1.runtime.Session;
import org.neo4j.bolt.v1.transport.BoltProtocolV1;
import org.neo4j.collection.primitive.PrimitiveLongObjectMap;
import org.neo4j.kernel.impl.logging.NullLogService;
import org.neo4j.logging.AssertableLogProvider;
import org.neo4j.logging.NullLogProvider;

import static org.hamcrest.Matchers.equalTo;
import static org.hamcrest.Matchers.is;
import static org.mockito.Mockito.mock;
import static org.mockito.Mockito.verify;
import static org.mockito.Mockito.when;
import static org.neo4j.collection.primitive.Primitive.longObjectMap;
import static org.neo4j.logging.AssertableLogProvider.inLog;

public class SocketTransportHandlerTest {
    @Test
    public void shouldCloseSessionOnChannelClose() throws Throwable {
        // Given
        Session session = mock(Session.class);
        Channel ch = mock(Channel.class);
        ChannelHandlerContext ctx = mock(ChannelHandlerContext.class);
        when(ctx.channel()).thenReturn(ch);

        when(ch.alloc()).thenReturn(UnpooledByteBufAllocator.DEFAULT);
        when(ctx.alloc()).thenReturn(UnpooledByteBufAllocator.DEFAULT);

        SocketTransportHandler handler = new SocketTransportHandler(protocolChooser(session),
                NullLogProvider.getInstance());

        // And Given a session has been established
        handler.channelRead(ctx, handshake());

        // When
        handler.channelInactive(ctx);

        // Then
        verify(session).close();
    }

    @Test
    public void logsAndClosesConnectionOnUnexpectedExceptions() throws Throwable {
        // Given
        Session session = mock(Session.class);
        Channel ch = mock(Channel.class);
        ChannelHandlerContext ctx = mock(ChannelHandlerContext.class);
        when(ctx.channel()).thenReturn(ch);

        when(ch.alloc()).thenReturn(UnpooledByteBufAllocator.DEFAULT);
        when(ctx.alloc()).thenReturn(UnpooledByteBufAllocator.DEFAULT);

        AssertableLogProvider logging = new AssertableLogProvider();

        SocketTransportHandler handler = new SocketTransportHandler(protocolChooser(session), logging);

        // And Given a session has been established
        handler.channelRead(ctx, handshake());

        // When
        Throwable cause = new Throwable("Oh no!");
        handler.exceptionCaught(ctx, cause);

        // Then
        verify(session).close();
        logging.assertExactly(inLog(SocketTransportHandler.class)
                .error(equalTo("Fatal error occurred when handling a client connection: Oh no!"), is(cause)));
    }

    private SocketTransportHandler.ProtocolChooser protocolChooser(final Session session) {
        PrimitiveLongObjectMap<BiFunction<Channel, Boolean, BoltProtocol>> availableVersions = longObjectMap();
        availableVersions.put(BoltProtocolV1.VERSION,
                (channel, isSecure) -> new BoltProtocolV1(session, channel, NullLogService.getInstance()));

        return new SocketTransportHandler.ProtocolChooser(availableVersions, true);
    }

    private ByteBuf handshake() {
        ByteBuf buf = UnpooledByteBufAllocator.DEFAULT.buffer();
        buf.writeInt(0x6060B017);
        buf.writeInt(1);
        buf.writeInt(0);
        buf.writeInt(0);
        buf.writeInt(0);
        return buf;
    }

}