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/*
* (c) Copyright 2006, 2007, 2008, 2009 Hewlett-Packard Development Company, LP
* All rights reserved.
* [See end of file]
*/
package atlas.lib;
import atlas.lib.BitsInt;
import atlas.test.BaseTest;
import org.junit.Test;
public class TestBitsInt extends BaseTest
{
@Test public void testMask1()
{
int v = BitsInt.mask(0,1) ;
check(0x1, v) ;
}
@Test public void testMask2()
{
int v = BitsInt.mask(0,2) ;
check(0x3, v) ;
}
@Test public void testMask3()
{
int v = BitsInt.mask(1,2) ;
check(0x2, v) ;
}
@Test public void testMask4()
{
int v = BitsInt.mask(0,32) ;
check(-1, v) ;
}
@Test public void testMask5()
{
int v = BitsInt.mask(16,24) ;
check(0x00FF0000, v) ;
}
@Test public void testMask6()
{
int v = BitsInt.mask(16,32) ;
check(0xFFFF0000, v) ;
}
@Test public void testMask7()
{
int v = BitsInt.mask(0, 0) ;
check(0, v) ;
}
@Test public void testMaskZero1()
{
int v = BitsInt.maskZero(0,1) ;
check(~0x1, v) ;
}
@Test public void testMaskZero2()
{
int v = BitsInt.maskZero(0,2) ;
check(~0x3, v) ;
}
@Test public void testMaskZero3()
{
int v = BitsInt.maskZero(1,2) ;
check(0xFFFFFFFD, v) ;
}
@Test public void testMaskZero4()
{
int v = BitsInt.maskZero(0,32) ;
check(0, v) ;
}
@Test public void testMaskZero5()
{
int v = BitsInt.maskZero(16,24) ;
check(0xFF00FFFF, v) ;
}
@Test public void testMaskZero6()
{
int v = BitsInt.maskZero(16,32) ;
check(0xFFFF, v) ;
}
@Test public void testMaskZero7()
{
int v = BitsInt.maskZero(0, 0) ;
check(-1, v) ;
}
@Test public void testClear1()
{
int v = 0xF0F0 ;
v = BitsInt.clear(v, 4, 8) ;
String s = Integer.toHexString(v) ;
check(0xF000, v ) ;
}
@Test public void testClear2()
{
int v = 0x80000000;
v = BitsInt.clear(v, 31, 32) ;
String s = Integer.toHexString(v) ;
check(0x0, v ) ;
}
@Test public void testClear3()
{
int v = 0xC0000000;
v = BitsInt.clear(v, 31, 32) ;
String s = Integer.toHexString(v) ;
check(0x40000000, v ) ;
}
@Test public void testClear4()
{
int v = -1 ;
v = BitsInt.clear(v, 31, 32) ;
String s = Integer.toHexString(v) ;
check(0x7FFFFFFF, v ) ;
}
@Test public void testClear5()
{
int v = -1 ;
v = BitsInt.clear(v, 16, 32) ;
String s = Integer.toHexString(v) ;
check(0x0000FFFF, v ) ;
}
@Test public void testClear6()
{
int v = -1 ;
v = BitsInt.clear(v, 0, 16) ;
String s = Integer.toHexString(v) ;
check(0xFFFF0000, v ) ;
}
@Test public void testClear7()
{
int v = -1 ;
v = BitsInt.clear(v, 0, 0) ;
String s = Integer.toHexString(v) ;
check(-1, v ) ;
}
@Test public void testSet1()
{
int v = 0x0 ;
v = BitsInt.set(v, 0, 1) ;
check(1, v) ;
}
@Test public void testSet2()
{
int v = 0x1 ;
v = BitsInt.set(v, 0, 1) ;
check(1, v) ;
}
@Test public void testSet3()
{
int v = 0xF0 ;
v = BitsInt.set(v, 0, 1) ;
check(0xF1, v) ;
}
@Test public void testSet4()
{
int v = 0xF0F0F0F0 ;
v = BitsInt.set(v, 0, 8) ;
check(0xF0F0F0FF, v) ;
}
@Test public void testSet5()
{
int v = 0 ;
v = BitsInt.set(v, 16, 24) ;
check(0x00FF0000, v) ;
}
@Test public void testSet6()
{
int v = 0 ;
v = BitsInt.set(v, 31, 32) ;
check(0x80000000, v) ;
}
@Test public void testSet7()
{
int v = 0 ;
v = BitsInt.set(v, 30, 32) ;
check(0xC0000000, v) ;
}
@Test public void testSet8()
{
int v = 0 ;
v = BitsInt.set(v, 0, 32) ;
check(-1, v) ;
}
@Test public void testSet9()
{
int v = 0 ;
v = BitsInt.set(v, 10, 10) ;
check(0, v) ;
}
@Test public void testSetBit1()
{
int v = 0 ;
v = BitsInt.set(v, 0) ;
check(1, v) ;
}
@Test public void testSetBit2()
{
int v = 0 ;
v = BitsInt.set(v, 1) ;
check(2, v) ;
}
@Test public void testSetBit3()
{
int v = 1 ;
v = BitsInt.set(v, 0) ;
check(1, v) ;
}
@Test public void testSetBit4()
{
int v = -1 ;
v = BitsInt.set(v, 0) ;
check(-1, v) ;
}
@Test public void testSetBit5()
{
int v = 0 ;
v = BitsInt.set(v, 30) ;
check(0x40000000, v) ;
}
@Test public void testSetBit6()
{
int v = 0 ;
v = BitsInt.set(v, 31) ;
check(0x80000000, v) ;
}
@Test public void testBitTest1()
{
int v = 0 ;
assertTrue(BitsInt.test(v, false, 0)) ;
}
@Test public void testBitTest2()
{
int v = 1 ;
assertTrue(BitsInt.test(v, true, 0)) ;
}
@Test public void testBitTest3()
{
int v = -1 ;
assertTrue(BitsInt.test(v, true, 31)) ;
}
@Test public void testBitTest4()
{
int v = 0x7FFFFFFF ;
assertTrue(BitsInt.test(v, false, 31)) ;
}
@Test public void testBitsTest1()
{
int v = 0x76543210 ;
assertTrue(BitsInt.test(v, 0x0, 0, 4)) ;
}
@Test public void testBitsTest2()
{
int v = 0x76543210 ;
assertTrue(BitsInt.test(v, 0x10, 0, 8)) ;
}
@Test public void testBitsTest3()
{
int v = 0x76543210 ;
assertTrue(BitsInt.test(v, v, 0, 32)) ;
}
@Test public void testBitsTest4()
{
int v = 0x76543210 ;
assertFalse(BitsInt.test(v, 0, 0, 32)) ;
}
@Test public void testBitsTest5()
{
int v = 0x76543210 ;
assertTrue(BitsInt.test(v, 0x00543200, 8, 24)) ;
}
@Test public void testIsSet1()
{
int v = 0x00000010 ;
BitsInt.isSet(v, 4) ;
assertTrue(BitsInt.isSet(v, 4)) ;
assertFalse(BitsInt.isSet(v, 3)) ;
assertFalse(BitsInt.isSet(v, 5)) ;
}
@Test public void testAccess1()
{
int v = -1 ;
v = BitsInt.access(v, 4, 8) ;
check(0xF0, v ) ;
}
@Test public void testAccess2()
{
int v = 0x76543210 ;
v = BitsInt.access(v, 0, 8) ;
check(0x10, v ) ;
}
@Test public void testAccess3()
{
int v = 0x76543210 ;
v = BitsInt.access(v, 0, 32) ;
check(0x76543210, v ) ;
}
@Test public void testAccess4()
{
int v = 0xFEF43210 ;
v = BitsInt.access(v, 30, 32) ;
check(0xC0000000, v ) ;
}
@Test public void testAccess5()
{
int v = 0x76543210 ;
v = BitsInt.access(v, 0, 2) ;
check(0, v ) ;
}
@Test public void testPack1()
{
int v = 0 ;
v = BitsInt.pack(v, 0xF, 0, 4) ;
check(0xF, v ) ;
}
@Test public void testPack2()
{
int v = 0xF0 ;
v = BitsInt.pack(v, 0x2, 0, 4) ;
check(0xF2, v ) ;
}
@Test public void testPack3()
{
int v = -1 ;
v = BitsInt.pack(v, 0x2, 0, 8) ;
check(0xFFFFFF02, v ) ;
}
@Test public void testPack4()
{
int v = 0xFFFF0000 ;
v = BitsInt.pack(v, 0x2, 8, 16) ;
check(0xFFFF0200, v ) ;
}
@Test public void testPack5()
{
int v = 0xFFFF0000 ;
v = BitsInt.pack(v, 0xFF, 8, 16) ;
check(0xFFFFFF00, v ) ;
}
@Test public void testUnpack1()
{
int v = 0xABCDABCD ;
v = BitsInt.unpack(v, 0, 4) ;
check(0xD, v ) ;
}
@Test public void testUnpack2()
{
int v = 0xABCDABCD ;
v = BitsInt.unpack(v, 31, 32) ;
check(1, v ) ;
}
@Test public void testUnpack3()
{
int v = 0xABCDABCD ;
v = BitsInt.unpack(v, 24, 32) ;
check(0xAB, v ) ;
}
@Test public void testUnpack4()
{
int v = 0xAB1234CD ;
v = BitsInt.unpack(v, 8, 24) ;
check(0x1234, v ) ;
}
@Test public void testUnpackStr1()
{
String s = "ABCD" ;
int v = BitsInt.unpack(s, 0, 4) ;
check(0xABCD, v ) ;
}
@Test public void testUnpackStr2()
{
String s = "ABCD" ;
int v = BitsInt.unpack(s, 2, 4) ;
check(0xCD, v ) ;
}
@Test public void testUnpackStr3()
{
String s = "ABCD" ;
int v = BitsInt.unpack(s, 0, 2) ;
check(0xAB, v ) ;
}
private void check(int expected, int actual)
{
check(null, expected, actual) ;
}
private void check(String msg, int expected, int actual)
{
if ( expected == actual ) return ;
String s = "Expected: "+Integer.toHexString(expected)+" : Got: "+Integer.toHexString(actual) ;
if ( msg != null )
s = msg+": "+s ;
assertFalse(s, true) ;
}
}
/*
* (c) Copyright 2006, 2007, 2008, 2009 Hewlett-Packard Development Company, LP
* 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 name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS 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 AUTHOR 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.
*/© 2015 - 2025 Weber Informatics LLC | Privacy Policy