Github user jinxing64 commented on a diff in the pull request: https://github.com/apache/spark/pull/16989#discussion_r118482160 --- Diff: core/src/test/scala/org/apache/spark/storage/ShuffleBlockFetcherIteratorSuite.scala --- @@ -401,4 +413,64 @@ class ShuffleBlockFetcherIteratorSuite extends SparkFunSuite with PrivateMethodT assert(id3 === ShuffleBlockId(0, 2, 0)) } + test("Blocks should be shuffled to disk when size of the request is above the" + + " threshold(maxReqSizeShuffleToMem).") { + val blockManager = mock(classOf[BlockManager]) + val localBmId = BlockManagerId("test-client", "test-client", 1) + doReturn(localBmId).when(blockManager).blockManagerId + + val diskBlockManager = mock(classOf[DiskBlockManager]) + doReturn{ + var blockId = new TempLocalBlockId(UUID.randomUUID()) --- End diff -- .. sorry for nit ...
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