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Original file line number Diff line number Diff line change
Expand Up @@ -34,6 +34,7 @@ import org.apache.hadoop.service.ServiceStateException
import org.apache.hadoop.yarn.api.records.ApplicationId
import org.apache.hadoop.yarn.conf.YarnConfiguration
import org.apache.hadoop.yarn.server.api.{ApplicationInitializationContext, ApplicationTerminationContext}
import org.mockito.Mockito.{mock, when}
import org.scalatest.BeforeAndAfterEach
import org.scalatest.concurrent.Eventually._
import org.scalatest.matchers.must.Matchers
Expand All @@ -42,8 +43,9 @@ import org.scalatest.matchers.should.Matchers._
import org.apache.spark.SecurityManager
import org.apache.spark.SparkFunSuite
import org.apache.spark.internal.config._
import org.apache.spark.network.shuffle.ShuffleTestAccessor
import org.apache.spark.network.shuffle.{ExternalBlockHandler, RemoteBlockPushResolver, ShuffleTestAccessor}
import org.apache.spark.network.shuffle.protocol.ExecutorShuffleInfo
import org.apache.spark.network.util.TransportConf
import org.apache.spark.util.Utils

class YarnShuffleServiceSuite extends SparkFunSuite with Matchers with BeforeAndAfterEach {
Expand Down Expand Up @@ -411,4 +413,27 @@ class YarnShuffleServiceSuite extends SparkFunSuite with Matchers with BeforeAnd
))
}

test("create default merged shuffle file manager instance") {
val mockConf = mock(classOf[TransportConf])
when(mockConf.mergedShuffleFileManagerImpl).thenReturn(
"org.apache.spark.network.shuffle.ExternalBlockHandler$NoOpMergedShuffleFileManager")
val mergeMgr = YarnShuffleService.newMergedShuffleFileManagerInstance(mockConf)
assert(mergeMgr.isInstanceOf[ExternalBlockHandler.NoOpMergedShuffleFileManager])
}

test("create remote block push resolver instance") {
val mockConf = mock(classOf[TransportConf])
when(mockConf.mergedShuffleFileManagerImpl).thenReturn(
"org.apache.spark.network.shuffle.RemoteBlockPushResolver")
val mergeMgr = YarnShuffleService.newMergedShuffleFileManagerInstance(mockConf)
assert(mergeMgr.isInstanceOf[RemoteBlockPushResolver])
}

test("invalid class name of merge manager will use noop instance") {
val mockConf = mock(classOf[TransportConf])
when(mockConf.mergedShuffleFileManagerImpl).thenReturn(
"org.apache.spark.network.shuffle.NotExistent")
val mergeMgr = YarnShuffleService.newMergedShuffleFileManagerInstance(mockConf)
assert(mergeMgr.isInstanceOf[ExternalBlockHandler.NoOpMergedShuffleFileManager])
}
}