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      1 /*
      2  * Copyright (C) 2016 The Android Open Source Project
      3  *
      4  * Licensed under the Apache License, Version 2.0 (the "License");
      5  * you may not use this file except in compliance with the License.
      6  * You may obtain a copy of the License at
      7  *
      8  *      http://www.apache.org/licenses/LICENSE-2.0
      9  *
     10  * Unless required by applicable law or agreed to in writing, software
     11  * distributed under the License is distributed on an "AS IS" BASIS,
     12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     13  * See the License for the specific language governing permissions and
     14  * limitations under the License
     15  */
     16 
     17 package libcore.java.util.concurrent;
     18 
     19 import junit.framework.TestCase;
     20 
     21 import java.util.concurrent.ArrayBlockingQueue;
     22 import java.util.concurrent.ThreadPoolExecutor;
     23 import java.util.concurrent.TimeUnit;
     24 
     25 public class ThreadPoolExecutorTest extends TestCase {
     26 
     27     // http://b/27702221
     28     public void testCorePoolSizeGreaterThanMax() {
     29         ThreadPoolExecutor tp = new ThreadPoolExecutor(
     30                 1 /* core pool size */, 1 /* max pool size */,
     31                 1000, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<>(10));
     32 
     33         // It should be illegal to set a core pool size that's larger than the max
     34         // pool size but apps have been allowed to get away with it so far. The pattern
     35         // below occurs in a commonly used library. Note that the executor is in a sane
     36         // state at the end of both method calls.
     37         tp.setCorePoolSize(5);
     38         tp.setMaximumPoolSize(5);
     39     }
     40 }
     41