/*
* 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.jackrabbit.core.id;
import junit.framework.TestCase;
public class NodeIdTest extends TestCase {
private static final NodeId[] ids = {
NodeId.randomId(), // random id
new NodeId(0, 0),
new NodeId(-1, -1),
new NodeId("cafebabe-cafe-babe-cafe-babecafebabe")
};
public void testDenotesNode() {
for (NodeId id : ids) {
assertTrue(id.denotesNode());
}
}
public void testGetMostAndLeastSignificantBits() {
for (NodeId id : ids) {
long msb = id.getMostSignificantBits();
long lsb = id.getLeastSignificantBits();
assertEquals(id, new NodeId(msb, lsb));
}
}
public void testGetRawBytes() {
for (NodeId id : ids) {
assertEquals(id, new NodeId(id.getRawBytes()));
}
}
public void testToString() {
for (NodeId id : ids) {
assertEquals(id, new NodeId(id.toString()));
}
}
public void testCompareTo() {
for (NodeId id : ids) {
assertEquals(0, id.compareTo(id));
}
NodeId[] ordered = {
new NodeId(-1, -1),
new NodeId(-1, 0),
new NodeId(0, -1),
new NodeId(0, 0),
new NodeId(0, 1),
new NodeId(1, 0),
new NodeId(1, 1)
};
for (int i = 0; i < ordered.length; i++) {
for (int j = 0; j < i; j++) {
assertEquals(1, ordered[i].compareTo(ordered[j]));
}
assertEquals(0, ordered[i].compareTo(ordered[i]));
for (int j = i + 1; j < ordered.length; j++) {
assertEquals(-1, ordered[i].compareTo(ordered[j]));
}
}
}
public void testUuidFormat() {
long maxHigh = 0, maxLow = 0, minHigh = -1L, minLow = -1L;
for (int i = 0; i < 100; i++) {
NodeId id = NodeId.randomId();
assertUuidFormat(id);
maxHigh |= id.getMostSignificantBits();
maxLow |= id.getLeastSignificantBits();
minHigh &= id.getMostSignificantBits();
minLow &= id.getLeastSignificantBits();
}
NodeId max = new NodeId(maxHigh, maxLow);
assertEquals("ffffffff-ffff-4fff-bfff-ffffffffffff", max.toString());
NodeId min = new NodeId(minHigh, minLow);
assertEquals("00000000-0000-4000-8000-000000000000", min.toString());
}
private void assertUuidFormat(NodeId id) {
long high = id.getMostSignificantBits();
long low = id.getLeastSignificantBits();
long high2 = (high & (~0xf000L)) | 0x4000L; // version 4 (random)
assertEquals(high, high2);
long low2 = (low & 0x3fffffffffffffffL) | 0x8000000000000000L; // variant (Leach-Salz)
assertEquals(low, low2);
}
}