com.netflix.curator.framework.recipes.locks.TestLockCleanlinessWithFaults.java Source code

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Here is the source code for com.netflix.curator.framework.recipes.locks.TestLockCleanlinessWithFaults.java

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/*
 * Copyright 2012 Netflix, Inc.
 *
 *    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 com.netflix.curator.framework.recipes.locks;

import java.util.List;

import org.apache.commons.io.IOUtils;
import org.apache.zookeeper.KeeperException;
import org.testng.annotations.Test;

import com.netflix.curator.framework.CuratorFramework;
import com.netflix.curator.framework.CuratorFrameworkFactory;
import com.netflix.curator.framework.recipes.BaseClassForTests;
import com.netflix.curator.retry.RetryNTimes;

import junit.framework.Assert;

public class TestLockCleanlinessWithFaults extends BaseClassForTests {
    @Test
    public void testNodeDeleted() throws Exception {
        final String PATH = "/foo/bar";

        CuratorFramework client = null;
        try {
            client = CuratorFrameworkFactory.newClient(server.getConnectString(), new RetryNTimes(0, 0));
            client.start();

            client.create().creatingParentsIfNeeded().forPath(PATH);
            Assert.assertEquals(client.checkExists().forPath(PATH).getNumChildren(), 0);

            LockInternals internals = new LockInternals(client, new StandardLockInternalsDriver(), PATH, "lock-",
                    1) {
                @Override
                List<String> getSortedChildren() throws Exception {
                    throw new KeeperException.NoNodeException();
                }
            };
            try {
                internals.attemptLock(0, null, null);
                Assert.fail();
            } catch (KeeperException.NoNodeException dummy) {
                // expected
            }

            // make sure no nodes are left lying around
            Assert.assertEquals(client.checkExists().forPath(PATH).getNumChildren(), 0);
        } finally {
            IOUtils.closeQuietly(client);
        }
    }
}