src-lib-test.atlas.lib.TestBytes Maven / Gradle / Ivy
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TDB is a storage subsystem for Jena and ARQ
/*
* (c) Copyright 2008, 2009 Hewlett-Packard Development Company, LP
* All rights reserved.
* [See end of file]
*/
package atlas.lib;
import java.nio.ByteBuffer;
import atlas.lib.Bytes;
import atlas.test.BaseTest;
import org.junit.Test;
public class TestBytes extends BaseTest
{
@Test public void packInt1()
{
byte[] b = new byte[4] ;
Bytes.setInt(0x01020304,b) ;
assertEquals(0x01, b[0]) ;
assertEquals(0x02, b[1]) ;
assertEquals(0x03, b[2]) ;
assertEquals(0x04, b[3]) ;
}
@Test public void packInt2()
{
byte[] b = new byte[8] ;
Bytes.setInt(0x01020304,b,0) ;
Bytes.setInt(0x05060708,b,4) ;
assertEquals(0x01, b[0]) ;
assertEquals(0x02, b[1]) ;
assertEquals(0x03, b[2]) ;
assertEquals(0x04, b[3]) ;
assertEquals(0x05, b[4]) ;
assertEquals(0x06, b[5]) ;
assertEquals(0x07, b[6]) ;
assertEquals(0x08, b[7]) ;
}
@Test public void packInt3()
{
byte[] b = new byte[4] ;
Bytes.setInt(0xF1F2F3F4,b) ;
int i = Bytes.getInt(b) ;
assertEquals(0xF1F2F3F4, i) ;
}
@Test public void packInt4()
{
byte[] b = new byte[8] ;
Bytes.setInt(0x01020304,b,0) ;
Bytes.setInt(0x05060708,b,4) ;
int i1 = Bytes.getInt(b,0) ;
int i2 = Bytes.getInt(b,4) ;
assertEquals(0x01020304, i1) ;
assertEquals(0x05060708, i2) ;
}
@Test public void packLong5()
{
byte[] b = new byte[8] ;
Bytes.setLong(0x0102030405060708L,b) ;
assertEquals(0x01, b[0]) ;
assertEquals(0x02, b[1]) ;
assertEquals(0x03, b[2]) ;
assertEquals(0x04, b[3]) ;
assertEquals(0x05, b[4]) ;
assertEquals(0x06, b[5]) ;
assertEquals(0x07, b[6]) ;
assertEquals(0x08, b[7]) ;
}
@Test public void packLong6()
{
byte[] b = new byte[16] ;
Bytes.setLong(0x0102030405060708L,b,0) ;
Bytes.setLong(0x1112131415161718L,b,8) ;
assertEquals(0x01, b[0]) ;
assertEquals(0x02, b[1]) ;
assertEquals(0x03, b[2]) ;
assertEquals(0x04, b[3]) ;
assertEquals(0x05, b[4]) ;
assertEquals(0x06, b[5]) ;
assertEquals(0x07, b[6]) ;
assertEquals(0x08, b[7]) ;
assertEquals(0x11, b[0+8]) ;
assertEquals(0x12, b[1+8]) ;
assertEquals(0x13, b[2+8]) ;
assertEquals(0x14, b[3+8]) ;
assertEquals(0x15, b[4+8]) ;
assertEquals(0x16, b[5+8]) ;
assertEquals(0x17, b[6+8]) ;
assertEquals(0x18, b[7+8]) ;
}
@Test public void packLong7()
{
byte[] b = new byte[8] ;
Bytes.setLong(0xF1F2F3F4F5F6F7F8L,b) ;
long i = Bytes.getLong(b) ;
assertEquals (0xF1F2F3F4F5F6F7F8L,i) ;
}
@Test public void packLong8()
{
byte[] b = new byte[16] ;
Bytes.setLong(0xF1F2F3F4F5F6F7F8L,b,0) ;
Bytes.setLong(0xA1A2A3A4A5A6A7A8L,b,8) ;
long i1 = Bytes.getLong(b,0) ;
long i2 = Bytes.getLong(b,8) ;
assertEquals(0xF1F2F3F4F5F6F7F8L,i1) ;
assertEquals(0xA1A2A3A4A5A6A7A8L,i2) ;
}
@Test public void compare1() { compare(0, new byte[]{}, new byte[]{}) ; }
@Test public void compare2() { compare(+1, new byte[]{1}, new byte[]{}) ; }
@Test public void compare3() { compare(-1, new byte[]{1}, new byte[]{1,2}) ; }
@Test public void compare4() { compare(+1, new byte[]{1,3}, new byte[]{1,2}) ; }
@Test public void compare5() { compare(+1, new byte[]{1,3}, new byte[]{1,2,3}) ; }
@Test public void compare6() { compare(-1, new byte[]{1,2}, new byte[]{1,2,3}) ; }
byte[] bytes = { 1, 2, 3, 4, 5, 6 } ;
@Test public void slice1()
{
byte[] x = Bytes.copyOf(bytes) ;
assertArrayEquals(bytes, x) ;
}
@Test public void slice3()
{
byte[] x = Bytes.copyOf(bytes,3) ;
byte[] y = new byte[]{4,5,6} ;
assertArrayEquals(y, x) ;
}
@Test public void slice2()
{
byte[] x = Bytes.copyOf(bytes,3,2) ;
byte[] y = new byte[]{4,5} ;
assertArrayEquals(y, x) ;
}
private static void compare(int expected, byte[] b1, byte[] b2)
{
int x = Bytes.compare(b1, b2) ;
if ( x > 0 && expected > 0 ) return ;
if ( x == 0 && expected == 0 ) return ;
if ( x < 0 && expected < 0 ) return ;
fail("Does not compare: "+Bytes.asHex(b1)+" :: "+Bytes.asHex(b2)) ;
}
private static void codec(String str)
{
ByteBuffer bb = ByteBuffer.allocate(16) ;
Bytes.toByteBuffer(str, bb) ;
bb.flip() ;
String str2 = Bytes.fromByteBuffer(bb) ;
assertEquals(str, str2) ;
}
static private final String asciiBase = "abc" ;
static private final String latinBase = "Àéíÿ" ;
static private final String latinExtraBase = "ỹfifl" ; // fi-ligature, fl-ligature
static private final String greekBase = "αβγ" ;
static private final String hewbrewBase = "אבג" ;
static private final String arabicBase = "ءآأ";
static private final String symbolsBase = "☺☻♪♫" ;
static private final String chineseBase = "孫子兵法" ; // The Art of War
static private final String japaneseBase = "日本" ; // Japanese
@Test public void codec1() { codec(asciiBase) ; }
@Test public void codec2() { codec("") ; }
@Test public void codec3() { codec(greekBase) ; }
@Test public void codec4() { codec(hewbrewBase) ; }
@Test public void codec5() { codec(arabicBase) ; }
@Test public void codec6() { codec(symbolsBase) ; }
@Test public void codec7() { codec(chineseBase) ; }
@Test public void codec8() { codec(japaneseBase) ; }
}
/*
* (c) Copyright 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