unsafe/src/test/java/org/apache/spark/unsafe/memory/TaskMemoryManagerSuite.java


1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41

/*
 * 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.unsafe.memory;

import org.junit.Assert;
import org.junit.Test;

public class TaskMemoryManagerSuite {

  @Test
  public void leakedNonPageMemoryIsDetected() {
    final TaskMemoryManager manager =
      new TaskMemoryManager(new ExecutorMemoryManager(MemoryAllocator.HEAP));
    manager.allocate(1024);  // leak memory
    Assert.assertEquals(1024, manager.cleanUpAllAllocatedMemory());
  }

  @Test
  public void leakedPageMemoryIsDetected() {
    final TaskMemoryManager manager =
      new TaskMemoryManager(new ExecutorMemoryManager(MemoryAllocator.HEAP));
    manager.allocatePage(4096);  // leak memory
    Assert.assertEquals(4096, manager.cleanUpAllAllocatedMemory());
  }

}