GOSSIP-85 Factor out PassiveGossipThread

gossip-itest/src/test/java/org/apache/gossip/TenNodeThreeSeedTest.java

@@ -0,0 +1,92 @@
+/*
+ * 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.gossip; 
+
+import io.teknek.tunit.TUnit;
+
+import java.net.URI;
+import java.net.URISyntaxException;
+import java.net.UnknownHostException;
+import java.util.ArrayList;
+import java.util.List;
+import java.util.UUID;
+import java.util.concurrent.Callable;
+import java.util.concurrent.TimeUnit;
+import org.junit.platform.runner.JUnitPlatform;
+import org.junit.runner.RunWith;
+import org.apache.gossip.manager.GossipManager;
+import org.apache.gossip.manager.GossipManagerBuilder;
+import org.junit.jupiter.api.Test;
+
+@RunWith(JUnitPlatform.class)
+public class TenNodeThreeSeedTest {
+
+  @Test
+  public void test() throws UnknownHostException, InterruptedException, URISyntaxException {
+    abc(30150);
+  }
+
+  @Test
+  public void testAgain() throws UnknownHostException, InterruptedException, URISyntaxException {
+    abc(30100);
+  }
+
+  public void abc(int base) throws InterruptedException, UnknownHostException, URISyntaxException {
+    GossipSettings settings = new GossipSettings(1000, 10000, 1000, 1, 1.6, "exponential");
+    settings.setPersistRingState(false);
+    settings.setPersistDataState(false);
+    String cluster = UUID.randomUUID().toString();
+    int seedNodes = 3;
+    List<Member> startupMembers = new ArrayList<>();
+    for (int i = 1; i < seedNodes+1; ++i) {
+      URI uri = new URI("udp://" + "127.0.0.1" + ":" + (base + i));
+      startupMembers.add(new RemoteMember(cluster, uri, i + ""));
+    }
+    final List<GossipManager> clients = new ArrayList<>();
+    final int clusterMembers = 5;
+    for (int i = 1; i < clusterMembers+1; ++i) {
+      URI uri = new URI("udp://" + "127.0.0.1" + ":" + (base + i));
+      GossipManager gossipService = GossipManagerBuilder.newBuilder()
+              .cluster(cluster)
+              .uri(uri)
+              .id(i + "")
+              .gossipSettings(settings)
+              .gossipMembers(startupMembers)
+              .build();
+      gossipService.init();
+      clients.add(gossipService);
+    }    
+    TUnit.assertThat(new Callable<Integer> (){
+      public Integer call() throws Exception {
+        int total = 0;
+        for (int i = 0; i < clusterMembers; ++i) {
+          total += clients.get(i).getLiveMembers().size();
+        }
+        return total;
+      }}).afterWaitingAtMost(40, TimeUnit.SECONDS).isEqualTo(20);
+          
+    for (int i = 0; i < clusterMembers; ++i) {
+      int j = i;
+      new Thread(){
+        public void run(){
+          clients.get(j).shutdown();
+        }
+      }.start();
+    }
+  }
+}