| /* |
| * 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.harmony.luni.tests.java.io; |
| |
| import junit.framework.TestSuite; |
| import org.apache.harmony.testframework.CharSinkTester; |
| import org.apache.harmony.testframework.CharWrapperTester; |
| import tests.support.Streams; |
| |
| import java.io.BufferedWriter; |
| import java.io.ByteArrayOutputStream; |
| import java.io.CharArrayWriter; |
| import java.io.File; |
| import java.io.FileReader; |
| import java.io.FileWriter; |
| import java.io.FilterWriter; |
| import java.io.IOException; |
| import java.io.OutputStreamWriter; |
| import java.io.PipedReader; |
| import java.io.PipedWriter; |
| import java.io.PrintWriter; |
| import java.io.StringWriter; |
| import java.io.Writer; |
| import java.util.concurrent.Callable; |
| import java.util.concurrent.ExecutorService; |
| import java.util.concurrent.Executors; |
| import java.util.concurrent.Future; |
| |
| /** |
| * Tests basic {@link Writer} behaviors for the luni implementations of the type. |
| */ |
| public class WriterTesterTest { |
| |
| public static junit.framework.Test suite() { |
| TestSuite suite = new TestSuite(); |
| |
| // sink tests |
| suite.addTest(new FileWriterCharSinkTester(true).createTests()); |
| suite.addTest(new FileWriterCharSinkTester(false).createTests()); |
| suite.addTest(new CharArrayWriterCharSinkTester().createTests()); |
| suite.addTest(new StringWriterCharSinkTester().createTests()); |
| suite.addTest(new PipedWriterCharSinkTester().createTests()); |
| |
| // wrapper tests |
| suite.addTest(new BufferedWriterCharSinkTester(1).createTests()); |
| suite.addTest(new BufferedWriterCharSinkTester(5).createTests()); |
| suite.addTest(new BufferedWriterCharSinkTester(1024).createTests()); |
| suite.addTest(new FilterWriterCharSinkTester().createTests()); |
| suite.addTest(new PrintWriterCharSinkTester().setThrowsExceptions(false).createTests()); |
| suite.addTest(new OutputStreamWriterCharSinkTester().createTests()); |
| |
| return suite; |
| } |
| |
| private static class FileWriterCharSinkTester extends CharSinkTester { |
| private final boolean append; |
| private File file; |
| |
| public FileWriterCharSinkTester(boolean append) { |
| this.append = append; |
| } |
| |
| @Override public Writer create() throws Exception { |
| file = File.createTempFile("FileOutputStreamSinkTester", "tmp"); |
| file.deleteOnExit(); |
| return new FileWriter(file, append); |
| } |
| |
| @Override public char[] getChars() throws Exception { |
| return Streams.streamToString(new FileReader(file)).toCharArray(); |
| } |
| } |
| |
| private static class CharArrayWriterCharSinkTester extends CharSinkTester { |
| private CharArrayWriter writer; |
| |
| @Override public Writer create() throws Exception { |
| writer = new CharArrayWriter(); |
| return writer; |
| } |
| |
| @Override public char[] getChars() throws Exception { |
| return writer.toCharArray(); |
| } |
| } |
| |
| private static class PipedWriterCharSinkTester extends CharSinkTester { |
| |
| private ExecutorService executor; |
| private Future<char[]> future; |
| |
| public Writer create() throws IOException { |
| final PipedReader in = new PipedReader(); |
| PipedWriter out = new PipedWriter(in); |
| |
| executor = Executors.newSingleThreadExecutor(); |
| future = executor.submit(new Callable<char[]>() { |
| final CharArrayWriter chars = new CharArrayWriter(); |
| public char[] call() throws Exception { |
| char[] buffer = new char[256]; |
| int count; |
| while ((count = in.read(buffer)) != -1) { |
| chars.write(buffer, 0, count); |
| } |
| return chars.toCharArray(); |
| } |
| }); |
| |
| return out; |
| } |
| |
| @Override public char[] getChars() throws Exception { |
| executor.shutdown(); |
| return future.get(); |
| } |
| } |
| |
| private static class StringWriterCharSinkTester extends CharSinkTester { |
| private StringWriter writer; |
| |
| @Override public Writer create() throws Exception { |
| writer = new StringWriter(); |
| return writer; |
| } |
| |
| @Override public char[] getChars() throws Exception { |
| return writer.toString().toCharArray(); |
| } |
| } |
| |
| private static class BufferedWriterCharSinkTester extends CharWrapperTester { |
| private final int bufferSize; |
| |
| private BufferedWriterCharSinkTester(int bufferSize) { |
| this.bufferSize = bufferSize; |
| } |
| |
| @Override public Writer create(Writer delegate) throws Exception { |
| return new BufferedWriter(delegate, bufferSize); |
| } |
| |
| @Override public char[] decode(char[] delegateChars) throws Exception { |
| return delegateChars; |
| } |
| } |
| |
| private static class FilterWriterCharSinkTester extends CharWrapperTester { |
| @Override public Writer create(Writer delegate) throws Exception { |
| return new FilterWriter(delegate) {}; |
| } |
| |
| @Override public char[] decode(char[] delegateChars) throws Exception { |
| return delegateChars; |
| } |
| } |
| |
| private static class PrintWriterCharSinkTester extends CharWrapperTester { |
| @Override public Writer create(Writer delegate) throws Exception { |
| return new PrintWriter(delegate) {}; |
| } |
| |
| @Override public char[] decode(char[] delegateChars) throws Exception { |
| return delegateChars; |
| } |
| } |
| |
| private static class OutputStreamWriterCharSinkTester extends CharSinkTester { |
| private ByteArrayOutputStream out; |
| |
| @Override public Writer create() throws Exception { |
| out = new ByteArrayOutputStream(); |
| return new OutputStreamWriter(out, "UTF-8"); |
| } |
| |
| @Override public char[] getChars() throws Exception { |
| return new String(out.toByteArray(), "UTF-8").toCharArray(); |
| } |
| } |
| } |