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From GitBox <...@apache.org>
Subject [GitHub] egor-ryashin commented on a change in pull request #6263: Add ability to specify list of task ports
Date Sun, 02 Sep 2018 13:24:55 GMT
egor-ryashin commented on a change in pull request #6263: Add ability to specify list of task
ports
URL: https://github.com/apache/incubator-druid/pull/6263#discussion_r214540821
 
 

 ##########
 File path: indexing-service/src/test/java/org/apache/druid/indexing/overlord/PortFinderTest.java
 ##########
 @@ -19,35 +19,76 @@
 
 package org.apache.druid.indexing.overlord;
 
+import com.google.common.collect.ImmutableList;
 import org.junit.Assert;
+import org.junit.Before;
 import org.junit.Test;
 
 import java.io.IOException;
 import java.net.ServerSocket;
 
 public class PortFinderTest
 {
-  private final PortFinder finder = new PortFinder(1200);
+  private PortFinder finderUseStartPort;
+  private PortFinder finderUseCandidatePorts;
+
+  @Before
+  public void setUp()
+  {
+    finderUseStartPort = new PortFinder(1200, ImmutableList.of());
+    // find two unused port for 'finderUseCandidatePorts'
+    for (int i = 1024; i <= 0xFFFF; ++i) {
+      try {
+        new ServerSocket(i).close();
 
 Review comment:
   I would avoid environment dependent code in unit tests, it can interfere with another process
or test. It's better to mock `canBind`, ie if you want to check the class doesn't provide
occupied *1024* port, make the method stub of `canBind(1024)` return `false`.

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