/*
* 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.jena.atlas.lib;
import java.util.Arrays ;
import java.util.Collection ;
import java.util.List ;
import org.apache.jena.atlas.iterator.Iter ;
import org.apache.jena.atlas.junit.BaseTest ;
import org.apache.jena.atlas.lib.Cache ;
import org.apache.jena.atlas.lib.CacheFactory ;
import org.junit.Before ;
import org.junit.Test ;
import org.junit.runner.RunWith ;
import org.junit.runners.Parameterized ;
import org.junit.runners.Parameterized.Parameters ;
@RunWith(Parameterized.class)
public class TestCache extends BaseTest
{
// Tests do not apply to cache1.
private static interface CacheMaker<K,V> { Cache<K,V> make(int size) ; String name() ; }
private static CacheMaker<Integer, Integer> simple =
new CacheMaker<Integer, Integer>()
{
@Override
public Cache<Integer, Integer> make(int size) { return CacheFactory.createSimpleCache(size) ; }
@Override
public String name() { return "Simple" ; }
}
;
private static CacheMaker<Integer, Integer> standard =
new CacheMaker<Integer, Integer>()
{
@Override
public Cache<Integer, Integer> make(int size) { return CacheFactory.createCache(size) ; }
@Override
public String name() { return "Standard" ; }
}
;
@Parameters
public static Collection<Object[]> cacheMakers()
{
return Arrays.asList(new Object[][] {
{ simple , 10 }
, { simple , 2 }
, { simple , 1 }
, { standard , 10 }
, { standard , 2 }
, { standard , 1 }
} ) ;
}
Cache<Integer, Integer> cache ;
CacheMaker<Integer,Integer> cacheMaker ;
int size ;
public TestCache(CacheMaker<Integer,Integer> cacheMaker, int size)
{
this.cacheMaker = cacheMaker ;
this.size = size ;
}
@Before public void before() { cache = cacheMaker.make(size) ; }
@Test public void cache_00()
{
assertEquals(0, cache.size()) ;
assertTrue(cache.isEmpty()) ;
}
@Test public void cache_01()
{
Integer x = cache.getIfPresent(7) ;
cache.put(7, 7) ;
assertEquals(1, cache.size()) ;
assertNull(x) ;
assertTrue(cache.containsKey(7)) ;
assertEquals(Integer.valueOf(7), cache.getIfPresent(7)) ;
}
@Test public void cache_02()
{
cache.put(7, 7) ;
cache.put(8, 8) ;
// Not true for Cache1.
if ( size > 2 )
assertEquals(2, cache.size()) ;
if ( size > 2 )
assertTrue(cache.containsKey(7)) ;
if ( size > 2 )
assertEquals(Integer.valueOf(7), cache.getIfPresent(7)) ;
assertTrue(cache.containsKey(8)) ;
assertEquals(Integer.valueOf(8), cache.getIfPresent(8)) ;
}
@Test public void cache_03()
{
cache.put(7, 7) ;
Integer x1 = cache.getIfPresent(7) ;
cache.put(7, 18) ;
assertEquals(1, cache.size()) ;
assertEquals(7, x1.intValue()) ;
assertTrue(cache.containsKey(7)) ;
assertEquals(Integer.valueOf(18), cache.getIfPresent(7)) ;
}
@Test public void cache_04()
{
cache.clear() ;
cache.put(7, 77) ;
List<Integer> x = Iter.toList(cache.keys()) ;
assertEquals(1, x.size()) ;
assertEquals(Integer.valueOf(7), x.get(0)) ;
}
@Test public void cache_05()
{
cache.clear() ;
cache.put(7, 77) ;
cache.clear() ;
assertEquals(0, cache.size()) ;
assertTrue(cache.isEmpty()) ;
}
}