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/*
* 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.spark.network.netty
import scala.util.Random
import org.mockito.Mockito.mock
import org.scalatest._
import org.apache.spark.{SecurityManager, SparkConf, SparkFunSuite}
import org.apache.spark.internal.config._
import org.apache.spark.network.BlockDataManager
class NettyBlockTransferServiceSuite
extends SparkFunSuite
with BeforeAndAfterEach
with ShouldMatchers {
private var service0: NettyBlockTransferService = _
private var service1: NettyBlockTransferService = _
override def afterEach() {
try {
if (service0 != null) {
service0.close()
service0 = null
}
if (service1 != null) {
service1.close()
service1 = null
}
} finally {
super.afterEach()
}
}
test("can bind to a random port") {
service0 = createService(port = 0)
service0.port should not be 0
}
test("can bind to two random ports") {
service0 = createService(port = 0)
service1 = createService(port = 0)
service0.port should not be service1.port
}
test("can bind to a specific port") {
val port = 17634 + Random.nextInt(10000)
logInfo("random port for test: " + port)
service0 = createService(port)
verifyServicePort(expectedPort = port, actualPort = service0.port)
}
test("can bind to a specific port twice and the second increments") {
val port = 17634 + Random.nextInt(10000)
logInfo("random port for test: " + port)
service0 = createService(port)
verifyServicePort(expectedPort = port, actualPort = service0.port)
service1 = createService(service0.port)
// `service0.port` is occupied, so `service1.port` should not be `service0.port`
verifyServicePort(expectedPort = service0.port + 1, actualPort = service1.port)
}
private def verifyServicePort(expectedPort: Int, actualPort: Int): Unit = {
actualPort should be >= expectedPort
// avoid testing equality in case of simultaneous tests
actualPort should be <= (expectedPort + 10)
}
private def createService(port: Int): NettyBlockTransferService = {
val conf = new SparkConf()
.set("spark.app.id", s"test-${getClass.getName}")
val securityManager = new SecurityManager(conf)
val blockDataManager = mock(classOf[BlockDataManager])
val service = new NettyBlockTransferService(conf, securityManager, "localhost", "localhost",
port, 1)
service.init(blockDataManager)
service
}
}
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