add test for p2p and zookeeper (#1958)

dubbo-remoting/dubbo-remoting-p2p/pom.xml

@@ -14,7 +14,8 @@
   See the License for the specific language governing permissions and
   limitations under the License.
   -->
-<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <parent>
         <groupId>com.alibaba</groupId>
@@ -34,5 +35,11 @@
             <artifactId>dubbo-remoting-api</artifactId>
             <version>${project.parent.version}</version>
         </dependency>
+        <dependency>
+            <groupId>com.alibaba</groupId>
+            <artifactId>dubbo-remoting-netty</artifactId>
+            <version>${project.parent.version}</version>
+            <scope>test</scope>
+        </dependency>
     </dependencies>
 </project>

dubbo-remoting/dubbo-remoting-p2p/src/test/java/org/apache/dubbo/remoting/p2p/exchange/support/MulticastExchangeNetworkerTest.java

@@ -0,0 +1,81 @@
+/*
+ * 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.dubbo.remoting.p2p.exchange.support;
+
+import static org.hamcrest.CoreMatchers.instanceOf;
+import static org.hamcrest.CoreMatchers.not;
+import static org.hamcrest.CoreMatchers.nullValue;
+
+import org.apache.dubbo.common.URL;
+import org.apache.dubbo.common.utils.NetUtils;
+import org.apache.dubbo.remoting.Channel;
+import org.apache.dubbo.remoting.RemotingException;
+import org.apache.dubbo.remoting.exchange.ExchangeChannel;
+import org.apache.dubbo.remoting.exchange.ExchangeHandler;
+import org.apache.dubbo.remoting.exchange.support.ExchangeHandlerAdapter;
+import org.apache.dubbo.remoting.p2p.Group;
+import org.apache.dubbo.remoting.p2p.Networkers;
+import org.apache.dubbo.remoting.p2p.Peer;
+import org.junit.Test;
+
+import java.util.concurrent.CompletableFuture;
+import java.util.concurrent.CountDownLatch;
+import java.util.concurrent.TimeUnit;
+
+import static org.junit.Assert.assertThat;
+import static org.mockito.Mockito.mock;
+
+public class MulticastExchangeNetworkerTest {
+    @Test
+    public void testJoin() throws RemotingException, InterruptedException {
+        final String groupURL = "multicast://224.5.6.7:1234";
+
+        MulticastExchangeNetworker multicastExchangeNetworker = new MulticastExchangeNetworker();
+
+        final CountDownLatch countDownLatch = new CountDownLatch(1);
+        Peer peer1 = multicastExchangeNetworker.lookup(URL.valueOf(groupURL))
+                .join(URL.valueOf("dubbo://0.0.0.0:" + NetUtils.getAvailablePort()), new ExchangeHandlerAdapter() {
+                    @Override
+                    public CompletableFuture<Object> reply(ExchangeChannel channel, Object msg) throws RemotingException {
+                        countDownLatch.countDown();
+                        return super.reply(channel, msg);
+                    }
+                });
+        Peer peer2 = multicastExchangeNetworker.lookup(URL.valueOf(groupURL))
+                .join(URL.valueOf("dubbo://0.0.0.0:" + NetUtils.getAvailablePort()), mock(ExchangeHandler.class));
+
+        while (true) {
+            for (Channel channel : peer1.getChannels()) {
+                channel.send("hello multicast exchange network!");
+            }
+            TimeUnit.MILLISECONDS.sleep(50);
+
+            long count = countDownLatch.getCount();
+            if (count > 0) {
+                break;
+            }
+        }
+
+        Group lookup = Networkers.lookup(groupURL);
+        assertThat(lookup, not(nullValue()));
+
+        assertThat(peer1, instanceOf(ExchangeServerPeer.class));
+
+        peer1.close();
+        peer2.close();
+    }
+}

dubbo-remoting/dubbo-remoting-p2p/src/test/java/org/apache/dubbo/remoting/p2p/support/FileNetworkerTest.java

@@ -0,0 +1,85 @@
+/*
+ * 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.dubbo.remoting.p2p.support;
+
+import org.apache.dubbo.common.URL;
+import org.apache.dubbo.common.utils.NetUtils;
+import org.apache.dubbo.remoting.Channel;
+import org.apache.dubbo.remoting.RemotingException;
+import org.apache.dubbo.remoting.p2p.Group;
+import org.apache.dubbo.remoting.p2p.Peer;
+import org.apache.dubbo.remoting.transport.ChannelHandlerAdapter;
+import org.junit.After;
+import org.junit.Before;
+import org.junit.Rule;
+import org.junit.Test;
+import org.junit.rules.TemporaryFolder;
+
+import java.io.IOException;
+import java.util.concurrent.CountDownLatch;
+import java.util.concurrent.TimeUnit;
+
+import static org.mockito.Mockito.mock;
+
+public class FileNetworkerTest {
+    @Rule
+    public TemporaryFolder folder = new TemporaryFolder();
+
+    @Before
+    public void setUp() throws Exception {
+        folder.create();
+    }
+
+    @After
+    public void tearDown() throws Exception {
+        folder.delete();
+    }
+
+    @Test
+    public void testJoin() throws RemotingException, InterruptedException, IOException {
+        final String groupURL = "file://" + folder.newFile();
+
+        FileNetworker networker = new FileNetworker();
+        Group group = networker.lookup(URL.valueOf(groupURL));
+
+        final CountDownLatch countDownLatch = new CountDownLatch(1);
+        Peer peer1 = group.join(URL.valueOf("dubbo://0.0.0.0:" + NetUtils.getAvailablePort()), new ChannelHandlerAdapter() {
+            @Override
+            public void received(Channel channel, Object message) {
+                countDownLatch.countDown();
+            }
+        });
+        Peer peer2 = group.join(URL.valueOf("dubbo://0.0.0.0:" + NetUtils.getAvailablePort()),
+                mock(ChannelHandlerAdapter.class));
+
+        while (true) {
+            long count = countDownLatch.getCount();
+            if (count > 0) {
+                break;
+            }
+            for (Channel channel : peer1.getChannels()) {
+                channel.send(0, false);
+                channel.send("hello world!");
+            }
+            TimeUnit.MILLISECONDS.sleep(50);
+        }
+
+
+        peer2.close();
+        peer1.close();
+    }
+}

dubbo-remoting/dubbo-remoting-p2p/src/test/java/org/apache/dubbo/remoting/p2p/support/MulticastNetworkerTest.java

@@ -0,0 +1,70 @@
+/*
+ * 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.dubbo.remoting.p2p.support;
+
+import org.apache.dubbo.common.utils.NetUtils;
+import org.apache.dubbo.remoting.Channel;
+import org.apache.dubbo.remoting.RemotingException;
+import org.apache.dubbo.remoting.p2p.Group;
+import org.apache.dubbo.remoting.p2p.Networkers;
+import org.apache.dubbo.remoting.p2p.Peer;
+import org.apache.dubbo.remoting.transport.ChannelHandlerAdapter;
+import org.junit.Test;
+
+import java.util.concurrent.CountDownLatch;
+import java.util.concurrent.TimeUnit;
+
+import static org.hamcrest.CoreMatchers.not;
+import static org.hamcrest.CoreMatchers.nullValue;
+import static org.junit.Assert.assertThat;
+import static org.mockito.Mockito.mock;
+
+public class MulticastNetworkerTest {
+
+    @Test
+    public void testJoin() throws RemotingException, InterruptedException {
+        final String groupURL = "multicast://224.5.6.7:1234";
+        final String peerURL = "dubbo://0.0.0.0:" + NetUtils.getAvailablePort();
+
+        final CountDownLatch countDownLatch = new CountDownLatch(1);
+        Peer peer1 = Networkers.join(groupURL, peerURL, new ChannelHandlerAdapter() {
+            @Override
+            public void received(Channel channel, Object message) {
+                countDownLatch.countDown();
+            }
+        });
+        Peer peer2 = Networkers.join(groupURL, "dubbo://0.0.0.0:" + NetUtils.getAvailablePort(),
+                mock(ChannelHandlerAdapter.class));
+
+        while (true) {
+            long count = countDownLatch.getCount();
+            if (count > 0) {
+                break;
+            }
+            for (Channel channel : peer1.getChannels()) {
+                channel.send("hello world!");
+            }
+            TimeUnit.MILLISECONDS.sleep(50);
+        }
+
+        Group lookup = Networkers.lookup(groupURL);
+        assertThat(lookup, not(nullValue()));
+
+        peer2.close();
+        peer1.close();
+    }
+}