| /* |
| * 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.livy.client.common; |
| |
| import java.nio.ByteBuffer; |
| |
| import org.junit.Test; |
| import static org.junit.Assert.*; |
| |
| public class TestBufferUtils { |
| |
| @Test |
| public void testWrappedArray() { |
| byte[] array = new byte[] { 0x1b, 0x2b }; |
| byte[] unwrapped = BufferUtils.toByteArray(ByteBuffer.wrap(array)); |
| assertSame(array, unwrapped); |
| } |
| |
| @Test |
| public void testShortArray() { |
| byte[] array = new byte[] { 0x1b, 0x2b }; |
| byte[] unwrapped = BufferUtils.toByteArray(ByteBuffer.wrap(array, 0, 1)); |
| assertNotSame(array, unwrapped); |
| assertEquals(1, unwrapped.length); |
| } |
| |
| @Test |
| public void testOffsetArray() { |
| byte[] array = new byte[] { 0x1b, 0x2b }; |
| byte[] unwrapped = BufferUtils.toByteArray(ByteBuffer.wrap(array, 1, 1)); |
| assertNotSame(array, unwrapped); |
| assertEquals(1, unwrapped.length); |
| } |
| |
| @Test |
| public void testDirectBuffer() { |
| ByteBuffer direct = ByteBuffer.allocateDirect(1); |
| direct.put((byte) 0x1b); |
| assertFalse(direct.hasArray()); |
| direct.flip(); |
| |
| byte[] unwrapped = BufferUtils.toByteArray(direct); |
| assertEquals(0x1b, unwrapped[0]); |
| } |
| |
| } |