| // Protocol Buffers - Google's data interchange format |
| // Copyright 2008 Google Inc. All rights reserved. |
| // https://developers.google.com/protocol-buffers/ |
| // |
| // Redistribution and use in source and binary forms, with or without |
| // modification, are permitted provided that the following conditions are |
| // met: |
| // |
| // * Redistributions of source code must retain the above copyright |
| // notice, this list of conditions and the following disclaimer. |
| // * Redistributions in binary form must reproduce the above |
| // copyright notice, this list of conditions and the following disclaimer |
| // in the documentation and/or other materials provided with the |
| // distribution. |
| // * Neither the name of Google Inc. nor the names of its |
| // contributors may be used to endorse or promote products derived from |
| // this software without specific prior written permission. |
| // |
| // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| |
| package com.google.protobuf; |
| |
| import java.io.ByteArrayOutputStream; |
| import java.io.IOException; |
| import java.nio.ByteBuffer; |
| import java.util.Arrays; |
| import java.util.Random; |
| import junit.framework.TestCase; |
| |
| /** Tests for {@link ByteBufferWriter}. */ |
| public class ByteBufferWriterTest extends TestCase { |
| |
| public void testHeapBuffer() throws IOException { |
| // Test a small and large buffer. |
| testWrite(ByteBuffer.allocate(100)); |
| testWrite(ByteBuffer.allocate(1024 * 100)); |
| } |
| |
| public void testDirectBuffer() throws IOException { |
| // Test a small and large buffer. |
| testWrite(ByteBuffer.allocateDirect(100)); |
| testWrite(ByteBuffer.allocateDirect(1024 * 100)); |
| } |
| |
| private void testWrite(ByteBuffer buffer) throws IOException { |
| fillRandom(buffer); |
| ByteArrayOutputStream os = new ByteArrayOutputStream(buffer.remaining()); |
| ByteBufferWriter.write(buffer, os); |
| assertEquals(0, buffer.position()); |
| assertTrue(Arrays.equals(toArray(buffer), os.toByteArray())); |
| } |
| |
| private void fillRandom(ByteBuffer buf) { |
| byte[] bytes = new byte[buf.remaining()]; |
| new Random().nextBytes(bytes); |
| buf.put(bytes); |
| buf.flip(); |
| return; |
| } |
| |
| private byte[] toArray(ByteBuffer buf) { |
| int originalPosition = buf.position(); |
| byte[] bytes = new byte[buf.remaining()]; |
| buf.get(bytes); |
| buf.position(originalPosition); |
| return bytes; |
| } |
| } |