3 * Copyright (c) 2013 Cisco Systems, Inc. and others. All rights reserved.
5 * This program and the accompanying materials are made available under the
6 * terms of the Eclipse Public License v1.0 which accompanies this distribution,
7 * and is available at http://www.eclipse.org/legal/epl-v10.html
10 package org.openflow.util;
12 import java.math.BigInteger;
14 import junit.framework.TestCase;
16 public class U64Test extends TestCase {
18 * Tests that we correctly translate unsigned values in and out of a long
21 public void test() throws Exception {
22 BigInteger val = new BigInteger("ffffffffffffffff", 16);
23 TestCase.assertEquals(-1, U64.t(val));
24 TestCase.assertEquals(val, U64.f(-1));