001package org.eclipse.aether; 002 003/* 004 * Licensed to the Apache Software Foundation (ASF) under one 005 * or more contributor license agreements. See the NOTICE file 006 * distributed with this work for additional information 007 * regarding copyright ownership. The ASF licenses this file 008 * to you under the Apache License, Version 2.0 (the 009 * "License"); you may not use this file except in compliance 010 * with the License. You may obtain a copy of the License at 011 * 012 * http://www.apache.org/licenses/LICENSE-2.0 013 * 014 * Unless required by applicable law or agreed to in writing, 015 * software distributed under the License is distributed on an 016 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY 017 * KIND, either express or implied. See the License for the 018 * specific language governing permissions and limitations 019 * under the License. 020 */ 021 022import static org.junit.Assert.*; 023 024import java.util.UUID; 025import java.util.concurrent.atomic.AtomicReference; 026 027import org.junit.Test; 028 029public class DefaultRepositoryCacheTest 030{ 031 032 private DefaultRepositoryCache cache = new DefaultRepositoryCache(); 033 034 private RepositorySystemSession session = new DefaultRepositorySystemSession(); 035 036 private Object get( Object key ) 037 { 038 return cache.get( session, key ); 039 } 040 041 private void put( Object key, Object value ) 042 { 043 cache.put( session, key, value ); 044 } 045 046 @Test( expected = RuntimeException.class ) 047 public void testGet_NullKey() 048 { 049 get( null ); 050 } 051 052 @Test( expected = RuntimeException.class ) 053 public void testPut_NullKey() 054 { 055 put( null, "data" ); 056 } 057 058 @Test 059 public void testGetPut() 060 { 061 Object key = "key"; 062 assertNull( get( key ) ); 063 put( key, "value" ); 064 assertEquals( "value", get( key ) ); 065 put( key, "changed" ); 066 assertEquals( "changed", get( key ) ); 067 put( key, null ); 068 assertNull( get( key ) ); 069 } 070 071 @Test( timeout = 10000L ) 072 public void testConcurrency() 073 throws Exception 074 { 075 final AtomicReference<Throwable> error = new AtomicReference<>(); 076 Thread[] threads = new Thread[20]; 077 for ( int i = 0; i < threads.length; i++ ) 078 { 079 threads[i] = new Thread() 080 { 081 @Override 082 public void run() 083 { 084 for ( int i = 0; i < 100; i++ ) 085 { 086 String key = UUID.randomUUID().toString(); 087 try 088 { 089 put( key, Boolean.TRUE ); 090 assertEquals( Boolean.TRUE, get( key ) ); 091 } 092 catch ( Throwable t ) 093 { 094 error.compareAndSet( null, t ); 095 t.printStackTrace(); 096 } 097 } 098 } 099 }; 100 } 101 for ( Thread thread : threads ) 102 { 103 thread.start(); 104 } 105 for ( Thread thread : threads ) 106 { 107 thread.join(); 108 } 109 assertNull( String.valueOf( error.get() ), error.get() ); 110 } 111 112}