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Commons IO example source code file (TeeOutputStreamTest.java)

This example Commons IO source code file (TeeOutputStreamTest.java) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" TM.

Java - Commons IO tags/keywords

bytearrayoutputstream, bytearrayoutputstream, io, ioexception, ioexception, teeoutputstream, teeoutputstream, teeoutputstreamtest, teeoutputstreamtest, testcase

The Commons IO TeeOutputStreamTest.java source code

/*
 * 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.commons.io.output;


import java.io.ByteArrayOutputStream;
import java.io.IOException;

import junit.framework.TestCase;


/**
 * @version $Revision: 618694 $ $Date: 2008-02-05 16:34:21 +0000 (Tue, 05 Feb 2008) $
 */

public class TeeOutputStreamTest extends TestCase {

    public TeeOutputStreamTest(String name) {
        super(name);
    }

    public void testTee() throws IOException {
        ByteArrayOutputStream baos1 = new ByteArrayOutputStream();
        ByteArrayOutputStream baos2 = new ByteArrayOutputStream();
        TeeOutputStream tos = new TeeOutputStream(baos1, baos2);
        for(int i = 0; i < 20; i++) {
            tos.write(i);
        }
        assertByteArrayEquals("TeeOutputStream.write(int)", baos1.toByteArray(), baos2.toByteArray() );

        byte[] array = new byte[10];
        for(int i = 20; i < 30; i++) {
            array[i-20] = (byte)i;
        }
        tos.write(array);
        assertByteArrayEquals("TeeOutputStream.write(byte[])", baos1.toByteArray(), baos2.toByteArray() );

        for(int i = 25; i < 35; i++) {
            array[i-25] = (byte)i;
        }
        tos.write(array, 5, 5);
        assertByteArrayEquals("TeeOutputStream.write(byte[], int, int)", baos1.toByteArray(), baos2.toByteArray() );
    }

    private void assertByteArrayEquals(String msg, byte[] array1, byte[] array2) {
        assertEquals(msg+": array size mismatch", array1.length, array2.length);
        for(int i=0; i<array1.length; i++) {
            assertEquals(msg+": array[ " + i + "] mismatch", array1[i], array2[i]);
        }
    }

}

Other Commons IO examples (source code examples)

Here is a short list of links related to this Commons IO TeeOutputStreamTest.java source code file:

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