/* * 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.cassandra.db.marshal; import java.util.Arrays; import java.util.Random; import org.junit.Test; public class TimeUUIDTypeTest { TimeUUIDType timeUUIDType = new TimeUUIDType(); @Test public void testTimestampComparison() { Random rng = new Random(); byte[][] uuids = new byte[100][]; for (int i = 0; i < uuids.length; i++) { uuids[i] = new byte[16]; rng.nextBytes(uuids[i]); // set version to 1 uuids[i][6] &= 0x0F; uuids[i][6] |= 0x10; } Arrays.sort(uuids, timeUUIDType); for (int i = 1; i < uuids.length; i++) { long i0 = LexicalUUIDType.getUUID(uuids[i - 1]).timestamp(); long i1 = LexicalUUIDType.getUUID(uuids[i]).timestamp(); assert i0 <= i1; } } }