Github user vanzin commented on a diff in the pull request:
https://github.com/apache/spark/pull/19041#discussion_r163050512
--- Diff:
core/src/test/scala/org/apache/spark/CacheRecoveryManagerSuite.scala ---
@@ -0,0 +1,200 @@
+/*
+ * 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
+
+import java.util.concurrent.{ConcurrentHashMap, TimeUnit}
+import java.util.concurrent.atomic.AtomicInteger
+
+import scala.concurrent.{Future, Promise}
+import scala.concurrent.ExecutionContext.Implicits.global
+import scala.concurrent.duration.Duration
+import scala.reflect.ClassTag
+
+import org.mockito.Mockito._
+import org.scalatest.Matchers
+import org.scalatest.concurrent.Eventually
+import org.scalatest.mockito.MockitoSugar
+import org.scalatest.time.{Millis, Span}
+
+import
org.apache.spark.internal.config.DYN_ALLOCATION_CACHE_RECOVERY_TIMEOUT
+import org.apache.spark.rpc._
+import org.apache.spark.storage.{BlockId, BlockManagerId, RDDBlockId}
+import org.apache.spark.storage.BlockManagerMessages._
+import org.apache.spark.util.ThreadUtils
+
+class CacheRecoveryManagerSuite
+ extends SparkFunSuite with MockitoSugar with Matchers with Eventually {
+
+ val oneGB: Long = 1024L * 1024L * 1024L * 1024L
+ val plentyOfMem = Map(
+ BlockManagerId("1", "host", 12, None) -> ((oneGB, oneGB)),
+ BlockManagerId("2", "host", 12, None) -> ((oneGB, oneGB)),
+ BlockManagerId("3", "host", 12, None) -> ((oneGB, oneGB)))
+
+ test("CacheRecoveryManager will replicate blocks until empty and then
kill executor") {
--- End diff --
Minor, but adding `CacheRecoveryManager` to every test name makes the
output a lot more noisy.
```
CacheRecoveryManagerSuite:
- CacheRecoveryManager blah
- CacheRecoveryManager blah
- CacheRecoveryManager blah
```
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