Do not explicitly provide address for ServerSocket in tests (#1766)

Author: pm47

eclair-core/src/test/scala/fr/acinq/eclair/io/PeerSpec.scala

@@ -37,7 +37,7 @@ import org.scalatest.funsuite.FixtureAnyFunSuiteLike
 import org.scalatest.{Outcome, ParallelTestExecution, Tag}
 import scodec.bits.ByteVector
 
-import java.net.{InetAddress, ServerSocket, Socket}
+import java.net.{ServerSocket, Socket}
 import java.util.concurrent.Executors
 import scala.concurrent.duration._
 import scala.concurrent.{ExecutionContext, Future}
@@ -113,7 +113,7 @@ class PeerSpec extends TestKitBaseClass with FixtureAnyFunSuiteLike with Paralle
     system.actorOf(ClientSpawner.props(nodeParams.keyPair, nodeParams.socksProxy_opt, nodeParams.peerConnectionConf, TestProbe().ref, TestProbe().ref))
 
     // we create a dummy tcp server and update bob's announcement to point to it
-    val mockServer = new ServerSocket(0, 1, InetAddress.getLocalHost) // port will be assigned automatically
+    val mockServer = new ServerSocket(0, 1) // port will be assigned automatically
     val mockAddress = HostAndPort.fromParts(mockServer.getInetAddress.getHostAddress, mockServer.getLocalPort)
 
     val probe = TestProbe()
@@ -139,7 +139,7 @@ class PeerSpec extends TestKitBaseClass with FixtureAnyFunSuiteLike with Paralle
     system.actorOf(ClientSpawner.props(nodeParams.keyPair, nodeParams.socksProxy_opt, nodeParams.peerConnectionConf, TestProbe().ref, TestProbe().ref))
 
     // we create a dummy tcp server and update bob's announcement to point to it
-    val mockServer = new ServerSocket(0, 1, InetAddress.getLocalHost) // port will be assigned automatically
+    val mockServer = new ServerSocket(0, 1) // port will be assigned automatically
     val mockAddress = NodeAddress.fromParts(mockServer.getInetAddress.getHostAddress, mockServer.getLocalPort).get
 
     // we put the server address in the node db

eclair-core/src/test/scala/fr/acinq/eclair/io/ReconnectionTaskSpec.scala

@@ -25,7 +25,7 @@ import fr.acinq.eclair.wire.protocol.{Color, NodeAddress, NodeAnnouncement}
 import org.scalatest.funsuite.FixtureAnyFunSuiteLike
 import org.scalatest.{Outcome, ParallelTestExecution, Tag}
 
-import java.net.{InetAddress, ServerSocket}
+import java.net.ServerSocket
 import scala.concurrent.duration._
 
 class ReconnectionTaskSpec extends TestKitBaseClass with FixtureAnyFunSuiteLike with ParallelTestExecution {
@@ -222,7 +222,7 @@ class ReconnectionTaskSpec extends TestKitBaseClass with FixtureAnyFunSuiteLike
     import f._
 
     // we create a dummy tcp server and update bob's announcement to point to it
-    val mockServer = new ServerSocket(0, 1, InetAddress.getLocalHost) // port will be assigned automatically
+    val mockServer = new ServerSocket(0, 1) // port will be assigned automatically
     val mockAddress = NodeAddress.fromParts(mockServer.getInetAddress.getHostAddress, mockServer.getLocalPort).get
     val bobAnnouncement = NodeAnnouncement(randomBytes64, Features.empty, 1, remoteNodeId, Color(100.toByte, 200.toByte, 300.toByte), "node-alias", mockAddress :: Nil)
     nodeParams.db.network.addNode(bobAnnouncement)