/*
* JBoss, Home of Professional Open Source
* Copyright 2014, Red Hat, Inc., and individual contributors
* by the @authors tag. See the copyright.txt in the distribution for a
* full listing of individual contributors.
*
* Licensed 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.jboss.weld.tests.unit.util.cache;
import java.util.HashSet;
import java.util.Set;
import org.jboss.weld.util.cache.ComputingCache;
import org.jboss.weld.util.cache.ComputingCacheBuilder;
import org.jboss.weld.util.collections.Iterables;
import org.junit.Assert;
import org.junit.Before;
import org.junit.Test;
/**
* Testcase for {@link ComputingCacheBuilder#buildReentrant(java.util.function.Function)}
*
* @author Jozef Hartinger
*
*/
public class ReentrantComputingCacheTest {
private ComputingCache<Class<?>, Integer> cache;
@Before
public void init() {
cache = ComputingCacheBuilder.newBuilder().build(
(x) -> x.getInterfaces().length + ((x.getSuperclass() == null) ? 0 : countInterfaces(x.getSuperclass())));
}
private int countInterfaces(Class<?> clazz) {
return cache.getValue(clazz);
}
@Test
public void testReentrantComputingCache() {
Assert.assertEquals(2, countInterfaces(Integer.class));
}
@Test
public void testGetAllPresentValues() {
ComputingCache<String, String> cache = ComputingCacheBuilder.newBuilder().build(x -> x);
cache.getValue("foo");
cache.getValue("bar");
cache.getValue("baz");
Set<String> values = new HashSet<>();
Iterables.addAll(values, cache.getAllPresentValues());
Assert.assertEquals(3, values.size());
Assert.assertTrue(values.contains("foo"));
Assert.assertTrue(values.contains("bar"));
Assert.assertTrue(values.contains("baz"));
}
}