267 lines
7.9 KiB
Java
267 lines
7.9 KiB
Java
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/* ====================================================================
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* The Apache Software License, Version 1.1
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*
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* Copyright (c) 2002 The Apache Software Foundation. All rights
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* reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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*
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* 3. The end-user documentation included with the redistribution,
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* if any, must include the following acknowledgment:
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* "This product includes software developed by the
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* Apache Software Foundation (http://www.apache.org/)."
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* Alternately, this acknowledgment may appear in the software itself,
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* if and wherever such third-party acknowledgments normally appear.
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*
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* 4. The names "Apache" and "Apache Software Foundation" and
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* "Apache POI" must not be used to endorse or promote products
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* derived from this software without prior written permission. For
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* written permission, please contact apache@apache.org.
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*
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* 5. Products derived from this software may not be called "Apache",
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* "Apache POI", nor may "Apache" appear in their name, without
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* prior written permission of the Apache Software Foundation.
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*
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* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
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* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
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* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
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* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
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* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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* ====================================================================
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*
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* This software consists of voluntary contributions made by many
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* individuals on behalf of the Apache Software Foundation. For more
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* information on the Apache Software Foundation, please see
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* <http://www.apache.org/>.
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*/
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package org.apache.poi.util;
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import junit.framework.*;
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import java.io.*;
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/**
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* Test ShortField code
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*
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* @author Marc Johnson (mjohnson at apache dot org)
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*/
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public class TestShortField
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extends TestCase
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{
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/**
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* Constructor
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*
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* @param name
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*/
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public TestShortField(String name)
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{
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super(name);
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}
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static private final short[] _test_array =
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{
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Short.MIN_VALUE, ( short ) -1, ( short ) 0, ( short ) 1,
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Short.MAX_VALUE
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};
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/**
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* Test constructors.
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*/
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public void testConstructors()
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{
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try
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{
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new ShortField(-1);
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fail("Should have caught ArrayIndexOutOfBoundsException");
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}
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catch (ArrayIndexOutOfBoundsException ignored_e)
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{
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// as expected
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}
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ShortField field = new ShortField(2);
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assertEquals(0, field.get());
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try
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{
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new ShortField(-1, ( short ) 1);
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fail("Should have caught ArrayIndexOutOfBoundsException");
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}
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catch (ArrayIndexOutOfBoundsException ignored_e)
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{
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// as expected
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}
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field = new ShortField(2, ( short ) 0x1234);
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assertEquals(0x1234, field.get());
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byte[] array = new byte[ 4 ];
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try
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{
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new ShortField(-1, ( short ) 1, array);
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fail("Should have caught ArrayIndexOutOfBoundsException");
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}
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catch (ArrayIndexOutOfBoundsException ignored_e)
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{
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// as expected
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}
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field = new ShortField(2, ( short ) 0x1234, array);
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assertEquals(( short ) 0x1234, field.get());
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assertEquals(( byte ) 0x34, array[ 2 ]);
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assertEquals(( byte ) 0x12, array[ 3 ]);
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array = new byte[ 3 ];
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try
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{
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new ShortField(2, ( short ) 5, array);
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fail("should have gotten ArrayIndexOutOfBoundsException");
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}
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catch (ArrayIndexOutOfBoundsException ignored_e)
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{
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// as expected
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}
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for (int j = 0; j < _test_array.length; j++)
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{
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array = new byte[ 2 ];
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new ShortField(0, _test_array[ j ], array);
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assertEquals(_test_array[ j ], new ShortField(0, array).get());
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}
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}
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/**
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* Test set() methods
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*/
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public void testSet()
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{
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ShortField field = new ShortField(0);
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byte[] array = new byte[ 2 ];
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for (int j = 0; j < _test_array.length; j++)
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{
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field.set(_test_array[ j ]);
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assertEquals("testing _1 " + j, _test_array[ j ], field.get());
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field = new ShortField(0);
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field.set(_test_array[ j ], array);
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assertEquals("testing _2 ", _test_array[ j ], field.get());
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assertEquals("testing _3.0 " + _test_array[ j ],
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( byte ) (_test_array[ j ] % 256), array[ 0 ]);
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assertEquals("testing _3.1 " + _test_array[ j ],
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( byte ) ((_test_array[ j ] >> 8) % 256),
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array[ 1 ]);
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}
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}
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/**
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* Test readFromBytes
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*/
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public void testReadFromBytes()
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{
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ShortField field = new ShortField(1);
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byte[] array = new byte[ 2 ];
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try
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{
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field.readFromBytes(array);
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fail("should have caught ArrayIndexOutOfBoundsException");
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}
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catch (ArrayIndexOutOfBoundsException ignored_e)
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{
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// as expected
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}
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field = new ShortField(0);
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for (int j = 0; j < _test_array.length; j++)
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{
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array[ 0 ] = ( byte ) (_test_array[ j ] % 256);
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array[ 1 ] = ( byte ) ((_test_array[ j ] >> 8) % 256);
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field.readFromBytes(array);
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assertEquals("testing " + j, _test_array[ j ], field.get());
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}
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}
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/**
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* Test readFromStream
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*
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* @exception IOException
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*/
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public void testReadFromStream()
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throws IOException
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{
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ShortField field = new ShortField(0);
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byte[] buffer = new byte[ _test_array.length * 2 ];
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for (int j = 0; j < _test_array.length; j++)
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{
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buffer[ (j * 2) + 0 ] = ( byte ) (_test_array[ j ] % 256);
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buffer[ (j * 2) + 1 ] = ( byte ) ((_test_array[ j ] >> 8) % 256);
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}
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ByteArrayInputStream stream = new ByteArrayInputStream(buffer);
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for (int j = 0; j < buffer.length / 2; j++)
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{
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field.readFromStream(stream);
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assertEquals("Testing " + j, _test_array[ j ], field.get());
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}
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}
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/**
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* test writeToBytes
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*/
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public void testWriteToBytes()
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{
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ShortField field = new ShortField(0);
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byte[] array = new byte[ 2 ];
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for (int j = 0; j < _test_array.length; j++)
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{
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field.set(_test_array[ j ]);
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field.writeToBytes(array);
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short val = ( short ) (array[ 1 ] << 8);
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val &= ( short ) 0xFF00;
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val += ( short ) (array[ 0 ] & 0x00FF);
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assertEquals("testing ", _test_array[ j ], val);
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}
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}
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/**
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* Main
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*
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* @param args
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*/
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public static void main(String [] args)
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{
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System.out.println("Testing util.ShortField functionality");
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junit.textui.TestRunner.run(TestShortField.class);
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}
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}
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