/**
* 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.apache.hadoop.hbase.util.Order.ASCENDING;
import static org.apache.hadoop.hbase.util.Order.DESCENDING;
import static org.junit.Assert.assertArrayEquals;
import java.util.Arrays;
import java.util.Collections;
import org.apache.hadoop.hbase.testclassification.MiscTests;
import org.apache.hadoop.hbase.testclassification.SmallTests;
import org.junit.Test;
import org.junit.experimental.categories.Category;
@Category({MiscTests.class, SmallTests.class})
public class TestOrder {
byte[][] VALS = { Bytes.toBytes("foo"), Bytes.toBytes("bar"), Bytes.toBytes("baz") };
@Test
public void testApplyAscending() {
byte[][] vals = new byte[VALS.length][];
byte[][] ordered = new byte[VALS.length][];
for (int i = 0; i < VALS.length; i++) {
vals[i] = Arrays.copyOf(VALS[i], VALS[i].length);
ordered[i] = Arrays.copyOf(VALS[i], VALS[i].length);
ASCENDING.apply(ordered[i]);
}
Arrays.sort(vals, Bytes.BYTES_COMPARATOR);
Arrays.sort(ordered, Bytes.BYTES_COMPARATOR);
for (int i = 0; i < vals.length; i++) {
assertArrayEquals(vals[i], ordered[i]);
}
byte[] rangeApply = Arrays.copyOf(VALS[0], VALS[0].length);
ASCENDING.apply(rangeApply, 1, 1);
assertArrayEquals(VALS[0], rangeApply);
}
@Test
public void testApplyDescending() {
byte[][] vals = new byte[VALS.length][];
byte[][] ordered = new byte[VALS.length][];
for (int i = 0; i < VALS.length; i++) {
vals[i] = Arrays.copyOf(VALS[i], VALS[i].length);
ordered[i] = Arrays.copyOf(VALS[i], VALS[i].length);
DESCENDING.apply(ordered[i]);
}
Arrays.sort(vals, Collections.reverseOrder(Bytes.BYTES_COMPARATOR));
Arrays.sort(ordered, Bytes.BYTES_COMPARATOR);
for (int i = 0; i < vals.length; i++) {
DESCENDING.apply(ordered[i]);
assertArrayEquals(vals[i], ordered[i]);
}
byte[] expected = new byte[] { VALS[0][0], DESCENDING.apply(VALS[0][1]), VALS[0][2] };
byte[] rangeApply = Arrays.copyOf(VALS[0], VALS[0].length);
DESCENDING.apply(rangeApply, 1, 1);
assertArrayEquals(expected, rangeApply);
}
}