components/camel-jcache/src/test/java/org/apache/camel/component/jcache/processor/idempotent/JCacheIdempotentRepositoryTest.java

/*
 * 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.
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package org.apache.camel.component.jcache.processor.idempotent;

import javax.cache.Cache;

import org.apache.camel.component.jcache.JCacheConfiguration;
import org.apache.camel.component.jcache.JCacheHelper;
import org.apache.camel.component.jcache.JCacheManager;
import org.apache.camel.test.junit4.CamelTestSupport;
import org.junit.After;
import org.junit.Before;
import org.junit.Test;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

public class JCacheIdempotentRepositoryTest extends CamelTestSupport {
    private static final Logger LOGGER = LoggerFactory.getLogger(JCacheIdempotentRepositoryTest.class);

    private JCacheManager<String, Boolean> cacheManager;
    private Cache<String, Boolean> cache;
    private JCacheIdempotentRepository repository;

    @Override
    @Before
    public void setUp() throws Exception {
        cacheManager = JCacheHelper.createManager(new JCacheConfiguration("idempotent-repository"));
        cache = cacheManager.getCache();

        repository = new JCacheIdempotentRepository();
        repository.setCache(cache);
        repository.start();
    }

    @Override
    @After
    public void tearDown() throws Exception {
        repository.stop();
        cacheManager.close();
    }

    @Test
    public void addsNewKeysToCache() throws Exception {
        assertTrue(repository.add("One"));
        assertTrue(repository.add("Two"));

        assertTrue(cache.containsKey("One"));
        assertTrue(cache.containsKey("Two"));
    }

    @Test
    public void skipsAddingSecondTimeTheSameKey() throws Exception {
        assertTrue(repository.add("One"));
        assertFalse(repository.add("One"));
    }

    @Test
    public void containsPreviouslyAddedKey() throws Exception {
        assertFalse(repository.contains("One"));
        repository.add("One");
        assertTrue(repository.contains("One"));
    }

    @Test
    public void removesAnExistingKey() throws Exception {
        cache.clear();

        repository.add("One");

        assertTrue(repository.remove("One"));
        assertFalse(repository.contains("One"));
    }

    @Test
    public void doesNotRemoveMissingKey() throws Exception {
        assertFalse(repository.remove("One"));
    }
    
    @Test
    public void clearCache() throws Exception {
        assertTrue(repository.add("One"));
        assertTrue(repository.add("Two"));

        assertTrue(cache.containsKey("One"));
        assertTrue(cache.containsKey("Two"));
        
        repository.clear();
        
        assertFalse(cache.containsKey("One"));
        assertFalse(cache.containsKey("Two"));
    }
}