Java tutorial
/* * Copyright (c) 2019 the Eclipse Milo Authors * * This program and the accompanying materials are made * available under the terms of the Eclipse Public License 2.0 * which is available at https://www.eclipse.org/legal/epl-2.0/ * * SPDX-License-Identifier: EPL-2.0 */ package org.eclipse.milo.opcua.sdk.server.events.conversions; import java.nio.ByteBuffer; import java.util.UUID; import io.netty.buffer.ByteBufUtil; import org.eclipse.milo.opcua.stack.core.types.builtin.ByteString; import org.testng.annotations.Test; import static org.testng.Assert.assertEquals; public class ByteStringConversionsTest { @Test public void testByteStringToGuid() { long msb = 0xABCDABCDABCDABCDL; long lsb = 0xEFEFEFEFEFEFEFEFL; ByteBuffer bb = ByteBuffer.wrap(new byte[16]); bb.putLong(msb).putLong(lsb); ByteString bs = ByteString.of(bb.array()); UUID uuid = new UUID(msb, lsb); assertEquals(uuid, ByteStringConversions.byteStringToGuid(bs)); } @Test public void testByteStringToString() { ByteString bs = ByteString.of(new byte[] { 0x01, 0x02, 0x03 }); assertEquals(ByteBufUtil.hexDump(bs.bytesOrEmpty()), ByteStringConversions.byteStringToString(bs)); } }