storage-handlers/hbase/src/test/org/apache/hcatalog/hbase/snapshot/lock/ZNodeNameTest.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.
 */

package org.apache.hcatalog.hbase.snapshot.lock;

import junit.framework.TestCase;

import java.util.SortedSet;
import java.util.TreeSet;

import org.junit.Test;

/**
 * test for znodenames. This class is taken as-is from zookeeper lock recipe test.
 * The package name has been changed.
 */
public class ZNodeNameTest extends TestCase {
    @Test
    public void testOrderWithSamePrefix() throws Exception {
        String[] names = { "x-3", "x-5", "x-11", "x-1" };
        String[] expected = { "x-1", "x-3", "x-5", "x-11" };
        assertOrderedNodeNames(names, expected);
    }
    @Test
    public void testOrderWithDifferentPrefixes() throws Exception {
        String[] names = { "r-3", "r-2", "r-1", "w-2", "w-1" };
        String[] expected = { "r-1", "r-2", "r-3", "w-1", "w-2" };
        assertOrderedNodeNames(names, expected);
    }

    protected void assertOrderedNodeNames(String[] names, String[] expected) {
        int size = names.length;
        assertEquals("The two arrays should be the same size!", names.length, expected.length);
        SortedSet<ZNodeName> nodeNames = new TreeSet<ZNodeName>();
        for (String name : names) {
            nodeNames.add(new ZNodeName(name));
        }

        int index = 0;
        for (ZNodeName nodeName : nodeNames) {
            String name = nodeName.getName();
            assertEquals("Node " + index, expected[index++], name);
        }
    }

}