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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.shuffle.sort
import java.io.{File, FileInputStream, FileOutputStream}
import org.mockito.Answers.RETURNS_SMART_NULLS
import org.mockito.Matchers._
import org.mockito.Mockito._
import org.mockito.invocation.InvocationOnMock
import org.mockito.stubbing.Answer
import org.mockito.{Mock, MockitoAnnotations}
import org.scalatest.BeforeAndAfterEach
import org.apache.spark.shuffle.IndexShuffleBlockResolver
import org.apache.spark.storage._
import org.apache.spark.util.Utils
import org.apache.spark.{SparkConf, SparkFunSuite}
class IndexShuffleBlockResolverSuite extends SparkFunSuite with BeforeAndAfterEach {
@Mock(answer = RETURNS_SMART_NULLS) private var blockManager: BlockManager = _
@Mock(answer = RETURNS_SMART_NULLS) private var diskBlockManager: DiskBlockManager = _
private var tempDir: File = _
private val conf: SparkConf = new SparkConf(loadDefaults = false)
override def beforeEach(): Unit = {
super.beforeEach()
tempDir = Utils.createTempDir()
MockitoAnnotations.initMocks(this)
when(blockManager.diskBlockManager).thenReturn(diskBlockManager)
when(diskBlockManager.getFile(any[BlockId])).thenAnswer(
new Answer[File] {
override def answer(invocation: InvocationOnMock): File = {
new File(tempDir, invocation.getArguments.head.toString)
}
})
}
override def afterEach(): Unit = {
try {
Utils.deleteRecursively(tempDir)
} finally {
super.afterEach()
}
}
test("commit shuffle files multiple times") {
val lengths = Array[Long](10, 0, 20)
val resolver = new IndexShuffleBlockResolver(conf, blockManager)
val dataTmp = File.createTempFile("shuffle", null, tempDir)
val out = new FileOutputStream(dataTmp)
out.write(new Array[Byte](30))
out.close()
resolver.writeIndexFileAndCommit(1, 2, lengths, dataTmp)
val dataFile = resolver.getDataFile(1, 2)
assert(dataFile.exists())
assert(dataFile.length() === 30)
assert(!dataTmp.exists())
val dataTmp2 = File.createTempFile("shuffle", null, tempDir)
val out2 = new FileOutputStream(dataTmp2)
val lengths2 = new Array[Long](3)
out2.write(Array[Byte](1))
out2.write(new Array[Byte](29))
out2.close()
resolver.writeIndexFileAndCommit(1, 2, lengths2, dataTmp2)
assert(lengths2.toSeq === lengths.toSeq)
assert(dataFile.exists())
assert(dataFile.length() === 30)
assert(!dataTmp2.exists())
// The dataFile should be the previous one
val in = new FileInputStream(dataFile)
val firstByte = new Array[Byte](1)
in.read(firstByte)
assert(firstByte(0) === 0)
// remove data file
dataFile.delete()
val dataTmp3 = File.createTempFile("shuffle", null, tempDir)
val out3 = new FileOutputStream(dataTmp3)
val lengths3 = Array[Long](10, 10, 15)
out3.write(Array[Byte](2))
out3.write(new Array[Byte](34))
out3.close()
resolver.writeIndexFileAndCommit(1, 2, lengths3, dataTmp3)
assert(lengths3.toSeq != lengths.toSeq)
assert(dataFile.exists())
assert(dataFile.length() === 35)
assert(!dataTmp2.exists())
// The dataFile should be the previous one
val in2 = new FileInputStream(dataFile)
val firstByte2 = new Array[Byte](1)
in2.read(firstByte2)
assert(firstByte2(0) === 2)
}
}
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