poi/src/testcases/org/apache/poi/util/TestLongField.java

308 lines
10 KiB
Java

/* ====================================================================
* The Apache Software License, Version 1.1
*
* Copyright (c) 2002 The Apache Software Foundation. All rights
* reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* 3. The end-user documentation included with the redistribution,
* if any, must include the following acknowledgment:
* "This product includes software developed by the
* Apache Software Foundation (http://www.apache.org/)."
* Alternately, this acknowledgment may appear in the software itself,
* if and wherever such third-party acknowledgments normally appear.
*
* 4. The names "Apache" and "Apache Software Foundation" and
* "Apache POI" must not be used to endorse or promote products
* derived from this software without prior written permission. For
* written permission, please contact apache@apache.org.
*
* 5. Products derived from this software may not be called "Apache",
* "Apache POI", nor may "Apache" appear in their name, without
* prior written permission of the Apache Software Foundation.
*
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
* ====================================================================
*
* This software consists of voluntary contributions made by many
* individuals on behalf of the Apache Software Foundation. For more
* information on the Apache Software Foundation, please see
* <http://www.apache.org/>.
*/
package org.apache.poi.util;
import junit.framework.*;
import java.io.*;
/**
* Test LongField code
*
* @author Marc Johnson (mjohnson at apache dot org)
*/
public class TestLongField
extends TestCase
{
/**
* Constructor
*
* @param name
*/
public TestLongField(String name)
{
super(name);
}
static private final long[] _test_array =
{
Long.MIN_VALUE, -1L, 0L, 1L, Long.MAX_VALUE
};
/**
* Test constructors.
*/
public void testConstructors()
{
try
{
new LongField(-1);
fail("Should have caught ArrayIndexOutOfBoundsException");
}
catch (ArrayIndexOutOfBoundsException ignored_e)
{
// as expected
}
LongField field = new LongField(2);
assertEquals(0L, field.get());
try
{
new LongField(-1, 1L);
fail("Should have caught ArrayIndexOutOfBoundsException");
}
catch (ArrayIndexOutOfBoundsException ignored_e)
{
// as expected
}
field = new LongField(2, 0x123456789ABCDEF0L);
assertEquals(0x123456789ABCDEF0L, field.get());
byte[] array = new byte[ 10 ];
try
{
new LongField(-1, 1L, array);
fail("Should have caught ArrayIndexOutOfBoundsException");
}
catch (ArrayIndexOutOfBoundsException ignored_e)
{
// as expected
}
field = new LongField(2, 0x123456789ABCDEF0L, array);
assertEquals(0x123456789ABCDEF0L, field.get());
assertEquals(( byte ) 0xF0, array[ 2 ]);
assertEquals(( byte ) 0xDE, array[ 3 ]);
assertEquals(( byte ) 0xBC, array[ 4 ]);
assertEquals(( byte ) 0x9A, array[ 5 ]);
assertEquals(( byte ) 0x78, array[ 6 ]);
assertEquals(( byte ) 0x56, array[ 7 ]);
assertEquals(( byte ) 0x34, array[ 8 ]);
assertEquals(( byte ) 0x12, array[ 9 ]);
array = new byte[ 9 ];
try
{
new LongField(2, 5L, array);
fail("should have gotten ArrayIndexOutOfBoundsException");
}
catch (ArrayIndexOutOfBoundsException ignored_e)
{
// as expected
}
for (int j = 0; j < _test_array.length; j++)
{
array = new byte[ 8 ];
new LongField(0, _test_array[ j ], array);
assertEquals(_test_array[ j ], new LongField(0, array).get());
}
}
/**
* Test set() methods
*/
public void testSet()
{
LongField field = new LongField(0);
byte[] array = new byte[ 8 ];
for (int j = 0; j < _test_array.length; j++)
{
field.set(_test_array[ j ]);
assertEquals("testing _1 " + j, _test_array[ j ], field.get());
field = new LongField(0);
field.set(_test_array[ j ], array);
assertEquals("testing _2 ", _test_array[ j ], field.get());
assertEquals("testing _3.0 " + _test_array[ j ],
( byte ) (_test_array[ j ] % 256), array[ 0 ]);
assertEquals("testing _3.1 " + _test_array[ j ],
( byte ) ((_test_array[ j ] >> 8) % 256),
array[ 1 ]);
assertEquals("testing _3.2 " + _test_array[ j ],
( byte ) ((_test_array[ j ] >> 16) % 256),
array[ 2 ]);
assertEquals("testing _3.3 " + _test_array[ j ],
( byte ) ((_test_array[ j ] >> 24) % 256),
array[ 3 ]);
assertEquals("testing _3.4 " + _test_array[ j ],
( byte ) ((_test_array[ j ] >> 32) % 256),
array[ 4 ]);
assertEquals("testing _3.5 " + _test_array[ j ],
( byte ) ((_test_array[ j ] >> 40) % 256),
array[ 5 ]);
assertEquals("testing _3.6 " + _test_array[ j ],
( byte ) ((_test_array[ j ] >> 48) % 256),
array[ 6 ]);
assertEquals("testing _3.7 " + _test_array[ j ],
( byte ) ((_test_array[ j ] >> 56) % 256),
array[ 7 ]);
}
}
/**
* Test readFromBytes
*/
public void testReadFromBytes()
{
LongField field = new LongField(1);
byte[] array = new byte[ 8 ];
try
{
field.readFromBytes(array);
fail("should have caught ArrayIndexOutOfBoundsException");
}
catch (ArrayIndexOutOfBoundsException ignored_e)
{
// as expected
}
field = new LongField(0);
for (int j = 0; j < _test_array.length; j++)
{
array[ 0 ] = ( byte ) (_test_array[ j ] % 256);
array[ 1 ] = ( byte ) ((_test_array[ j ] >> 8) % 256);
array[ 2 ] = ( byte ) ((_test_array[ j ] >> 16) % 256);
array[ 3 ] = ( byte ) ((_test_array[ j ] >> 24) % 256);
array[ 4 ] = ( byte ) ((_test_array[ j ] >> 32) % 256);
array[ 5 ] = ( byte ) ((_test_array[ j ] >> 40) % 256);
array[ 6 ] = ( byte ) ((_test_array[ j ] >> 48) % 256);
array[ 7 ] = ( byte ) ((_test_array[ j ] >> 56) % 256);
field.readFromBytes(array);
assertEquals("testing " + j, _test_array[ j ], field.get());
}
}
/**
* Test readFromStream
*
* @exception IOException
*/
public void testReadFromStream()
throws IOException
{
LongField field = new LongField(0);
byte[] buffer = new byte[ _test_array.length * 8 ];
for (int j = 0; j < _test_array.length; j++)
{
buffer[ (j * 8) + 0 ] = ( byte ) (_test_array[ j ] % 256);
buffer[ (j * 8) + 1 ] = ( byte ) ((_test_array[ j ] >> 8) % 256);
buffer[ (j * 8) + 2 ] = ( byte ) ((_test_array[ j ] >> 16) % 256);
buffer[ (j * 8) + 3 ] = ( byte ) ((_test_array[ j ] >> 24) % 256);
buffer[ (j * 8) + 4 ] = ( byte ) ((_test_array[ j ] >> 32) % 256);
buffer[ (j * 8) + 5 ] = ( byte ) ((_test_array[ j ] >> 40) % 256);
buffer[ (j * 8) + 6 ] = ( byte ) ((_test_array[ j ] >> 48) % 256);
buffer[ (j * 8) + 7 ] = ( byte ) ((_test_array[ j ] >> 56) % 256);
}
ByteArrayInputStream stream = new ByteArrayInputStream(buffer);
for (int j = 0; j < buffer.length / 8; j++)
{
field.readFromStream(stream);
assertEquals("Testing " + j, _test_array[ j ], field.get());
}
}
/**
* test writeToBytes
*/
public void testWriteToBytes()
{
LongField field = new LongField(0);
byte[] array = new byte[ 8 ];
for (int j = 0; j < _test_array.length; j++)
{
field.set(_test_array[ j ]);
field.writeToBytes(array);
long val = (( long ) array[ 7 ]) << 56;
val &= 0xFF00000000000000L;
val += ((( long ) array[ 6 ]) << 48) & 0x00FF000000000000L;
val += ((( long ) array[ 5 ]) << 40) & 0x0000FF0000000000L;
val += ((( long ) array[ 4 ]) << 32) & 0x000000FF00000000L;
val += ((( long ) array[ 3 ]) << 24) & 0x00000000FF000000L;
val += ((( long ) array[ 2 ]) << 16) & 0x0000000000FF0000L;
val += ((( long ) array[ 1 ]) << 8) & 0x000000000000FF00L;
val += (array[ 0 ] & 0x00000000000000FFL);
assertEquals("testing ", _test_array[ j ], val);
}
}
/**
* Main
*
* @param args
*/
public static void main(String [] args)
{
System.out.println("Testing util.LongField functionality");
junit.textui.TestRunner.run(TestLongField.class);
}
}