149 lines
4.8 KiB
Java
149 lines
4.8 KiB
Java
/**
|
|
* Copyright (c) 2011-2013, Lukas Eder, lukas.eder@gmail.com
|
|
* All rights reserved.
|
|
*
|
|
* This software is licensed to you under the Apache License, Version 2.0
|
|
* (the "License"); You may obtain a copy of the License at
|
|
*
|
|
* http://www.apache.org/licenses/LICENSE-2.0
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions are met:
|
|
*
|
|
* . Redistributions of source code must retain the above copyright notice, this
|
|
* list of conditions and the following disclaimer.
|
|
*
|
|
* . 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.
|
|
*
|
|
* . Neither the name "jOOU" nor the names of its contributors may be
|
|
* used to endorse or promote products derived from this software without
|
|
* specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "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 COPYRIGHT OWNER OR 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.
|
|
*/
|
|
package dorkbox.util;
|
|
|
|
import static dorkbox.util.bytes.Unsigned.uint;
|
|
import static junit.framework.Assert.assertEquals;
|
|
import static junit.framework.Assert.assertFalse;
|
|
import static junit.framework.Assert.assertTrue;
|
|
import static junit.framework.Assert.fail;
|
|
|
|
import java.io.ByteArrayInputStream;
|
|
import java.io.ByteArrayOutputStream;
|
|
import java.io.IOException;
|
|
import java.io.ObjectInputStream;
|
|
import java.io.ObjectOutputStream;
|
|
|
|
import org.junit.Test;
|
|
|
|
import dorkbox.util.bytes.UInteger;
|
|
|
|
public class UIntegerTest {
|
|
private static final int CACHE_SIZE=256;
|
|
private static final int NEAR_MISS_OFFSET=4;
|
|
|
|
@SuppressWarnings("deprecation")
|
|
@Test
|
|
public void testValueOfLong() {
|
|
for(long l=01; l<=UInteger.MAX_VALUE; l<<=1) {
|
|
assertEquals(l , uint(l).longValue());
|
|
}
|
|
}
|
|
|
|
@SuppressWarnings("deprecation")
|
|
@Test
|
|
public void testValueOfLongCachingShift() {
|
|
for(long l=01; l<CACHE_SIZE; l<<=1)
|
|
{
|
|
UInteger a = uint(l);
|
|
UInteger b = uint(l);
|
|
assertTrue(a == b);
|
|
}
|
|
}
|
|
|
|
@SuppressWarnings("deprecation")
|
|
@Test
|
|
public void testValueOfLongCachingNear() {
|
|
for(long l=CACHE_SIZE-NEAR_MISS_OFFSET; l<CACHE_SIZE; l++)
|
|
{
|
|
UInteger a = uint(l);
|
|
UInteger b = uint(l);
|
|
assertTrue(a == b);
|
|
}
|
|
}
|
|
|
|
@SuppressWarnings("deprecation")
|
|
@Test
|
|
public void testValueOfLongNoCachingShift() {
|
|
for(long l=CACHE_SIZE; l<=CACHE_SIZE; l<<=1)
|
|
{
|
|
UInteger a = uint(l);
|
|
UInteger b = uint(l);
|
|
assertFalse(a == b);
|
|
}
|
|
}
|
|
|
|
@SuppressWarnings("deprecation")
|
|
@Test
|
|
public void testValueOfLongNoCachingNear() {
|
|
for(long l=CACHE_SIZE; l<=CACHE_SIZE+NEAR_MISS_OFFSET; l++)
|
|
{
|
|
UInteger a = uint(l);
|
|
UInteger b = uint(l);
|
|
assertFalse(a == b);
|
|
}
|
|
}
|
|
|
|
@SuppressWarnings("deprecation")
|
|
@Test
|
|
public void testValueOfLongInvalid() {
|
|
try {
|
|
uint(UInteger.MIN_VALUE - 1);
|
|
fail();
|
|
}
|
|
catch (NumberFormatException e) {}
|
|
try {
|
|
uint(UInteger.MAX_VALUE + 1);
|
|
fail();
|
|
}
|
|
catch (NumberFormatException e) {}
|
|
}
|
|
|
|
@SuppressWarnings("deprecation")
|
|
@Test
|
|
public void testSerializeDeserialize() throws ClassNotFoundException, IOException {
|
|
ByteArrayOutputStream baos = new ByteArrayOutputStream();
|
|
ObjectOutputStream oos = new ObjectOutputStream(baos);
|
|
ByteArrayInputStream bais;
|
|
ObjectInputStream ois;
|
|
UInteger expected = uint(42);
|
|
UInteger input = uint(42);
|
|
UInteger actual;
|
|
Object o;
|
|
|
|
oos.writeObject(input);
|
|
oos.close();
|
|
bais = new ByteArrayInputStream(baos.toByteArray());
|
|
ois = new ObjectInputStream(bais);
|
|
o = ois.readObject();
|
|
if (!(o instanceof UInteger)) {
|
|
fail();
|
|
}
|
|
actual = (UInteger) o;
|
|
assertEquals(expected, actual); // same value
|
|
assertTrue(expected == actual); // identical objects
|
|
}
|
|
} |