1/* 2 * Copyright (C) 2010 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17package libcore.java.nio.channels; 18 19import java.io.IOException; 20import java.nio.ByteBuffer; 21import java.nio.channels.Channels; 22import java.nio.channels.IllegalBlockingModeException; 23import java.nio.channels.Pipe; 24import java.nio.channels.WritableByteChannel; 25import junit.framework.TestCase; 26 27public final class ChannelsTest extends TestCase { 28 29 public void testStreamNonBlocking() throws IOException { 30 Pipe.SourceChannel sourceChannel = createNonBlockingChannel("abc".getBytes("UTF-8")); 31 try { 32 Channels.newInputStream(sourceChannel).read(); 33 fail(); 34 } catch (IllegalBlockingModeException expected) { 35 } 36 } 37 38 /** 39 * This fails on the RI which violates its own promise to throw when 40 * read in non-blocking mode. 41 */ 42 public void testReaderNonBlocking() throws IOException { 43 Pipe.SourceChannel sourceChannel = createNonBlockingChannel("abc".getBytes("UTF-8")); 44 try { 45 Channels.newReader(sourceChannel, "UTF-8").read(); 46 fail(); 47 } catch (IllegalBlockingModeException expected) { 48 } 49 } 50 51 private Pipe.SourceChannel createNonBlockingChannel(byte[] content) throws IOException { 52 Pipe pipe = Pipe.open(); 53 WritableByteChannel sinkChannel = pipe.sink(); 54 sinkChannel.write(ByteBuffer.wrap(content)); 55 Pipe.SourceChannel sourceChannel = pipe.source(); 56 sourceChannel.configureBlocking(false); 57 return sourceChannel; 58 } 59} 60 61