/*
* Copyright 2016 Netflix, 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 io.reactivex.netty.client;
import io.netty.buffer.ByteBuf;
import io.netty.channel.Channel;
import io.netty.channel.ChannelFuture;
import io.netty.channel.ChannelFutureListener;
import io.netty.channel.ChannelOption;
import io.netty.handler.logging.LogLevel;
import io.reactivex.netty.channel.Connection;
import io.reactivex.netty.channel.DetachedChannelPipeline;
import io.reactivex.netty.protocol.tcp.server.ConnectionHandler;
import io.reactivex.netty.protocol.tcp.server.TcpServer;
import io.reactivex.netty.test.util.MockEventPublisher;
import io.reactivex.netty.test.util.embedded.EmbeddedConnectionProvider;
import org.junit.Rule;
import org.junit.Test;
import org.junit.rules.ExternalResource;
import org.junit.runner.Description;
import org.junit.runners.model.Statement;
import org.mockito.Mockito;
import rx.Observable;
import rx.Observable.OnSubscribe;
import rx.Subscriber;
import rx.observers.TestSubscriber;
import java.net.InetSocketAddress;
import static org.hamcrest.MatcherAssert.*;
import static org.hamcrest.Matchers.*;
public class ClientStateTest {
@Rule
public final ClientStateRule clientStateRule = new ClientStateRule();
@Test(timeout = 60000)
public void testChannelOption() throws Exception {
ClientState<String, String> newState = clientStateRule.clientState
.channelOption(ChannelOption.CONNECT_TIMEOUT_MILLIS, 100);
assertThat("Client state not copied.", clientStateRule.clientState, is(not(newState)));
assertThat("Options not copied.", clientStateRule.clientState.unsafeChannelOptions(),
is(not(newState.unsafeChannelOptions())));
assertThat("Detached pipeline copied.", clientStateRule.clientState.unsafeDetachedPipeline(),
is(newState.unsafeDetachedPipeline()));
ClientState<String, String> oldState = clientStateRule.updateState(newState);
Channel channel = clientStateRule.connect();
assertThat("Channel option not set in the channel.", channel.config().getConnectTimeoutMillis(), is(100));
Channel oldStateChannel = clientStateRule.connect(oldState);
assertThat("Channel option updated in the old state.", oldStateChannel.config().getConnectTimeoutMillis(),
is(not(100)));
}
public static class ClientStateRule extends ExternalResource {
private ClientState<String, String> clientState;
private TcpServer<ByteBuf, ByteBuf> mockServer;
private DetachedChannelPipeline mockPipeline;
@Override
public Statement apply(final Statement base, Description description) {
return new Statement() {
@Override
public void evaluate() throws Throwable {
mockPipeline = Mockito.mock(DetachedChannelPipeline.class, Mockito.RETURNS_MOCKS);
mockServer = TcpServer.newServer(0)
.enableWireLogging("test", LogLevel.ERROR)
.start(new ConnectionHandler<ByteBuf, ByteBuf>() {
@Override
public Observable<Void> handle(
Connection<ByteBuf, ByteBuf> newConnection) {
return newConnection.writeString(Observable.just("Hello"));
}
});
EmbeddedConnectionProvider<String, String> ecp = new EmbeddedConnectionProvider<>();
clientState = ClientState.create(mockPipeline, ecp.asFactory(), Observable.<Host>empty())
.enableWireLogging(LogLevel.ERROR);
base.evaluate();
}
};
}
public Channel connect() throws InterruptedException {
return connect(clientState);
}
public Channel connect(final ClientState<String, String> state) throws InterruptedException {
TestSubscriber<Channel> subscriber = new TestSubscriber<>();
final ChannelFuture connect = state.newBootstrap(MockEventPublisher.disabled(), null)
.connect(new InetSocketAddress("127.0.0.1", mockServer.getServerPort()));
Observable.create(new OnSubscribe<Channel>() {
@Override
public void call(final Subscriber<? super Channel> subscriber) {
connect.addListener(new ChannelFutureListener() {
@Override
public void operationComplete(ChannelFuture future) throws Exception {
if (future.isSuccess()) {
subscriber.onNext(future.channel());
subscriber.onCompleted();
} else {
subscriber.onError(future.cause());
}
}
});
}
}).subscribe(subscriber);
subscriber.awaitTerminalEvent();
subscriber.assertNoErrors();
assertThat("No connection returned from connect.", subscriber.getOnNextEvents(), hasSize(1));
return subscriber.getOnNextEvents().get(0);
}
public ClientState<String, String> updateState(ClientState<String, String> newState) {
final ClientState<String, String> current = clientState;
clientState = newState;
return current;
}
}
}