1// Copyright 2014 The Chromium Authors. All rights reserved. 2// Use of this source code is governed by a BSD-style license that can be 3// found in the LICENSE file. 4 5package org.chromium.mojo; 6 7import java.nio.ByteBuffer; 8import java.nio.ByteOrder; 9import java.util.Random; 10 11/** 12 * Utilities methods for tests. 13 */ 14public final class TestUtils { 15 16 private static final Random RANDOM = new Random(); 17 18 /** 19 * Returns a new direct ByteBuffer of the given size with random (but reproducible) data. 20 */ 21 public static ByteBuffer newRandomBuffer(int size) { 22 byte bytes[] = new byte[size]; 23 RANDOM.setSeed(size); 24 RANDOM.nextBytes(bytes); 25 ByteBuffer data = ByteBuffer.allocateDirect(size); 26 data.order(ByteOrder.LITTLE_ENDIAN); 27 data.put(bytes); 28 data.flip(); 29 return data; 30 } 31 32} 33