/**
* Copyright 2011 The Apache Software Foundation
*
* 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.hadoop.hbase.util;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertTrue;
import org.apache.hadoop.hbase.HRegionInfo;
import org.apache.hadoop.hbase.util.HBaseFsck.HbckInfo;
import org.apache.hadoop.hbase.util.HBaseFsck.MetaEntry;
import org.junit.Test;
/**
* Test the comparator used by Hbck.
*/
public class TestHBaseFsckComparator {
byte[] table = Bytes.toBytes("table1");
byte[] table2 = Bytes.toBytes("table2");
byte[] keyStart = Bytes.toBytes("");
byte[] keyA = Bytes.toBytes("A");
byte[] keyB = Bytes.toBytes("B");
byte[] keyC = Bytes.toBytes("C");
byte[] keyEnd = Bytes.toBytes("");
static HbckInfo genHbckInfo(byte[] table, byte[] start, byte[] end, int time) {
return new HbckInfo(new MetaEntry(new HRegionInfo(table, start, end), null,
time));
}
@Test
public void testEquals() {
HbckInfo hi1 = genHbckInfo(table, keyA, keyB, 0);
HbckInfo hi2 = genHbckInfo(table, keyA, keyB, 0);
assertEquals(0, HBaseFsck.cmp.compare(hi1, hi2));
assertEquals(0, HBaseFsck.cmp.compare(hi2, hi1));
}
@Test
public void testEqualsInstance() {
HbckInfo hi1 = genHbckInfo(table, keyA, keyB, 0);
HbckInfo hi2 = hi1;
assertEquals(0, HBaseFsck.cmp.compare(hi1, hi2));
assertEquals(0, HBaseFsck.cmp.compare(hi2, hi1));
}
@Test
public void testDiffTable() {
HbckInfo hi1 = genHbckInfo(table, keyA, keyC, 0);
HbckInfo hi2 = genHbckInfo(table2, keyA, keyC, 0);
assertTrue(HBaseFsck.cmp.compare(hi1, hi2) < 0);
assertTrue(HBaseFsck.cmp.compare(hi2, hi1) > 0);
}
@Test
public void testDiffStartKey() {
HbckInfo hi1 = genHbckInfo(table, keyStart, keyC, 0);
HbckInfo hi2 = genHbckInfo(table, keyA, keyC, 0);
assertTrue(HBaseFsck.cmp.compare(hi1, hi2) < 0);
assertTrue(HBaseFsck.cmp.compare(hi2, hi1) > 0);
}
@Test
public void testDiffEndKey() {
HbckInfo hi1 = genHbckInfo(table, keyA, keyB, 0);
HbckInfo hi2 = genHbckInfo(table, keyA, keyC, 0);
assertTrue(HBaseFsck.cmp.compare(hi1, hi2) < 0);
assertTrue(HBaseFsck.cmp.compare(hi2, hi1) > 0);
}
@Test
public void testAbsEndKey() {
HbckInfo hi1 = genHbckInfo(table, keyA, keyC, 0);
HbckInfo hi2 = genHbckInfo(table, keyA, keyEnd, 0);
assertTrue(HBaseFsck.cmp.compare(hi1, hi2) < 0);
assertTrue(HBaseFsck.cmp.compare(hi2, hi1) > 0);
}
@Test
public void testTiebreaker() {
HbckInfo hi1 = genHbckInfo(table, keyA, keyC, 0);
HbckInfo hi2 = genHbckInfo(table, keyA, keyC, 1);
assertTrue(HBaseFsck.cmp.compare(hi1, hi2) < 0);
assertTrue(HBaseFsck.cmp.compare(hi2, hi1) > 0);
}
}