/* ====================================================================
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.poi.util;
import junit.framework.*;
/**
* Class to test BitField functionality
*
* @author Marc Johnson
* @author Glen Stampoultzis (gstamp@iprimus.com.au)
*/
public class TestBitField
extends TestCase
{
private static BitField bf_multi = BitFieldFactory.getInstance(0x3F80);
private static BitField bf_single = BitFieldFactory.getInstance(0x4000);
/**
* Constructor TestBitField
*
* @param name
*/
public TestBitField(String name)
{
super(name);
}
/**
* test the getValue() method
*/
public void testGetValue()
{
assertEquals(bf_multi.getValue(-1), 127);
assertEquals(bf_multi.getValue(0), 0);
assertEquals(bf_single.getValue(-1), 1);
assertEquals(bf_single.getValue(0), 0);
}
/**
* test the getShortValue() method
*/
public void testGetShortValue()
{
assertEquals(bf_multi.getShortValue(( short ) -1), ( short ) 127);
assertEquals(bf_multi.getShortValue(( short ) 0), ( short ) 0);
assertEquals(bf_single.getShortValue(( short ) -1), ( short ) 1);
assertEquals(bf_single.getShortValue(( short ) 0), ( short ) 0);
}
/**
* test the getRawValue() method
*/
public void testGetRawValue()
{
assertEquals(bf_multi.getRawValue(-1), 0x3F80);
assertEquals(bf_multi.getRawValue(0), 0);
assertEquals(bf_single.getRawValue(-1), 0x4000);
assertEquals(bf_single.getRawValue(0), 0);
}
/**
* test the getShortRawValue() method
*/
public void testGetShortRawValue()
{
assertEquals(bf_multi.getShortRawValue(( short ) -1),
( short ) 0x3F80);
assertEquals(bf_multi.getShortRawValue(( short ) 0), ( short ) 0);
assertEquals(bf_single.getShortRawValue(( short ) -1),
( short ) 0x4000);
assertEquals(bf_single.getShortRawValue(( short ) 0), ( short ) 0);
}
/**
* test the isSet() method
*/
public void testIsSet()
{
assertTrue(!bf_multi.isSet(0));
for (int j = 0x80; j <= 0x3F80; j += 0x80)
{
assertTrue(bf_multi.isSet(j));
}
assertTrue(!bf_single.isSet(0));
assertTrue(bf_single.isSet(0x4000));
}
/**
* test the isAllSet() method
*/
public void testIsAllSet()
{
for (int j = 0; j < 0x3F80; j += 0x80)
{
assertTrue(!bf_multi.isAllSet(j));
}
assertTrue(bf_multi.isAllSet(0x3F80));
assertTrue(!bf_single.isAllSet(0));
assertTrue(bf_single.isAllSet(0x4000));
}
/**
* test the setValue() method
*/
public void testSetValue()
{
for (int j = 0; j < 128; j++)
{
assertEquals(bf_multi.getValue(bf_multi.setValue(0, j)), j);
assertEquals(bf_multi.setValue(0, j), j << 7);
}
// verify that excess bits are stripped off
assertEquals(bf_multi.setValue(0x3f80, 128), 0);
for (int j = 0; j < 2; j++)
{
assertEquals(bf_single.getValue(bf_single.setValue(0, j)), j);
assertEquals(bf_single.setValue(0, j), j << 14);
}
// verify that excess bits are stripped off
assertEquals(bf_single.setValue(0x4000, 2), 0);
}
/**
* test the setShortValue() method
*/
public void testSetShortValue()
{
for (int j = 0; j < 128; j++)
{
assertEquals(bf_multi
.getShortValue(bf_multi
.setShortValue(( short ) 0, ( short ) j)), ( short ) j);
assertEquals(bf_multi.setShortValue(( short ) 0, ( short ) j),
( short ) (j << 7));
}
// verify that excess bits are stripped off
assertEquals(bf_multi.setShortValue(( short ) 0x3f80, ( short ) 128),
( short ) 0);
for (int j = 0; j < 2; j++)
{
assertEquals(bf_single
.getShortValue(bf_single
.setShortValue(( short ) 0, ( short ) j)), ( short ) j);
assertEquals(bf_single.setShortValue(( short ) 0, ( short ) j),
( short ) (j << 14));
}
// verify that excess bits are stripped off
assertEquals(bf_single.setShortValue(( short ) 0x4000, ( short ) 2),
( short ) 0);
}
public void testByte()
{
assertEquals(1, BitFieldFactory.getInstance(1).setByteBoolean(( byte ) 0, true));
assertEquals(2, BitFieldFactory.getInstance(2).setByteBoolean(( byte ) 0, true));
assertEquals(4, BitFieldFactory.getInstance(4).setByteBoolean(( byte ) 0, true));
assertEquals(8, BitFieldFactory.getInstance(8).setByteBoolean(( byte ) 0, true));
assertEquals(16, BitFieldFactory.getInstance(16).setByteBoolean(( byte ) 0, true));
assertEquals(32, BitFieldFactory.getInstance(32).setByteBoolean(( byte ) 0, true));
assertEquals(64, BitFieldFactory.getInstance(64).setByteBoolean(( byte ) 0, true));
assertEquals(-128,
BitFieldFactory.getInstance(128).setByteBoolean(( byte ) 0, true));
assertEquals(0, BitFieldFactory.getInstance(1).setByteBoolean(( byte ) 1, false));
assertEquals(0, BitFieldFactory.getInstance(2).setByteBoolean(( byte ) 2, false));
assertEquals(0, BitFieldFactory.getInstance(4).setByteBoolean(( byte ) 4, false));
assertEquals(0, BitFieldFactory.getInstance(8).setByteBoolean(( byte ) 8, false));
assertEquals(0, BitFieldFactory.getInstance(16).setByteBoolean(( byte ) 16, false));
assertEquals(0, BitFieldFactory.getInstance(32).setByteBoolean(( byte ) 32, false));
assertEquals(0, BitFieldFactory.getInstance(64).setByteBoolean(( byte ) 64, false));
assertEquals(0, BitFieldFactory.getInstance(128).setByteBoolean(( byte ) 128,
false));
assertEquals(-2, BitFieldFactory.getInstance(1).setByteBoolean(( byte ) 255, false));
byte clearedBit = BitFieldFactory.getInstance(0x40).setByteBoolean(( byte ) -63,
false);
assertEquals(false, BitFieldFactory.getInstance(0x40).isSet(clearedBit));
}
/**
* test the clear() method
*/
public void testClear()
{
assertEquals(bf_multi.clear(-1), 0xFFFFC07F);
assertEquals(bf_single.clear(-1), 0xFFFFBFFF);
}
/**
* test the clearShort() method
*/
public void testClearShort()
{
assertEquals(bf_multi.clearShort(( short ) -1), ( short ) 0xC07F);
assertEquals(bf_single.clearShort(( short ) -1), ( short ) 0xBFFF);
}
/**
* test the set() method
*/
public void testSet()
{
assertEquals(bf_multi.set(0), 0x3F80);
assertEquals(bf_single.set(0), 0x4000);
}
/**
* test the setShort() method
*/
public void testSetShort()
{
assertEquals(bf_multi.setShort(( short ) 0), ( short ) 0x3F80);
assertEquals(bf_single.setShort(( short ) 0), ( short ) 0x4000);
}
/**
* test the setBoolean() method
*/
public void testSetBoolean()
{
assertEquals(bf_multi.set(0), bf_multi.setBoolean(0, true));
assertEquals(bf_single.set(0), bf_single.setBoolean(0, true));
assertEquals(bf_multi.clear(-1), bf_multi.setBoolean(-1, false));
assertEquals(bf_single.clear(-1), bf_single.setBoolean(-1, false));
}
/**
* test the setShortBoolean() method
*/
public void testSetShortBoolean()
{
assertEquals(bf_multi.setShort(( short ) 0),
bf_multi.setShortBoolean(( short ) 0, true));
assertEquals(bf_single.setShort(( short ) 0),
bf_single.setShortBoolean(( short ) 0, true));
assertEquals(bf_multi.clearShort(( short ) -1),
bf_multi.setShortBoolean(( short ) -1, false));
assertEquals(bf_single.clearShort(( short ) -1),
bf_single.setShortBoolean(( short ) -1, false));
}
/**
* main method to run the unit tests
*
* @param ignored_args
*/
public static void main(String [] ignored_args)
{
System.out.println("Testing util.BitField functionality");
junit.textui.TestRunner.run(TestBitField.class);
}
}
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