/**
* Copyright 2010 JogAmp Community. 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.
*
* THIS SOFTWARE IS PROVIDED BY JogAmp Community ``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 JogAmp Community 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.
*
* The views and conclusions contained in the software and documentation are those of the
* authors and should not be interpreted as representing official policies, either expressed
* or implied, of JogAmp Community.
*/
package com.jogamp.common.util;
import java.util.*;
import java.io.IOException;
import org.junit.Assert;
import org.junit.Test;
import com.jogamp.junit.util.SingletonJunitCase;
import org.junit.FixMethodOrder;
import org.junit.runners.MethodSorters;
@FixMethodOrder(MethodSorters.NAME_ASCENDING)
public class TestArrayHashSet01 extends SingletonJunitCase {
public static class Dummy {
int i1, i2, i3;
public Dummy(final int i1, final int i2, final int i3) {
this.i1 = i1;
this.i2 = i2;
this.i3 = i3;
}
public boolean equals(final Object o) {
if(o instanceof Dummy) {
final Dummy d = (Dummy)o;
return this.i1 == d.i1 &&
this.i2 == d.i2 &&
this.i3 == d.i3 ;
}
return false;
}
public final int hashCode() {
// 31 * x == (x << 5) - x
int hash = 31 + i1;
hash = ((hash << 5) - hash) + i2;
hash = ((hash << 5) - hash) + i3;
return hash;
}
public String toString() {
return "Dummy["+super.toString()+": "+i1+", "+i2+", "+i3+"]";
}
}
void populate(final List<Dummy> l, final int start, final int len,
final int i2, final int i3, final int expectedPlusSize) {
final int oldSize = l.size();
for(int pos = start+len-1; pos>=start; pos--) {
l.add(new Dummy(pos, i2, i3));
}
Assert.assertEquals(expectedPlusSize, l.size() - oldSize);
}
boolean checkOrder(final List<Dummy> l, final int startIdx, final int start, final int len) {
for(int i=0; i<len; i++) {
final Dummy d = l.get(startIdx+i);
final int i1 = start+len-1-i;
if( d.i1 != i1 ) {
return false;
}
}
return true;
}
@Test
public void test01ArrayHashSetWithNullValue() {
testArrayHashSetImpl(true);
}
@Test
public void test02ArrayHashSetWithoutNullValue() {
testArrayHashSetImpl(false);
}
void testArrayHashSetImpl(final boolean supportNullValue) {
final ArrayHashSet<Dummy> l =
new ArrayHashSet<Dummy>(supportNullValue,
ArrayHashSet.DEFAULT_INITIAL_CAPACITY,
ArrayHashSet.DEFAULT_LOAD_FACTOR);
Assert.assertEquals(supportNullValue, l.supportsNullValue());
final int p7_22_34_idx;
final Dummy p7_22_34_orig;
final int p6_22_34_idx;
final Dummy p6_22_34_orig;
{
populate(l, 10, 100, 22, 34, 100); // [109 .. 10]
Assert.assertTrue(checkOrder(l, 0, 10, 100));
populate(l, 10, 100, 22, 34, 0); // [109 .. 10]
Assert.assertTrue(checkOrder(l, 0, 10, 100));
populate(l, 6, 5, 22, 34, 4); // [ 9 .. 6], 10 already exists
Assert.assertTrue(checkOrder(l, 100, 6, 4));
p7_22_34_idx = l.size() - 2;
p7_22_34_orig = l.get(p7_22_34_idx);
p6_22_34_idx = l.size() - 1;
p6_22_34_orig = l.get(p6_22_34_idx);
}
Assert.assertNotNull(p7_22_34_orig);
Assert.assertEquals(7, p7_22_34_orig.i1);
Assert.assertEquals(l.getData().get(p7_22_34_idx), p7_22_34_orig);
Assert.assertNotNull(p6_22_34_orig);
Assert.assertEquals(6, p6_22_34_orig.i1);
Assert.assertEquals(l.getData().get(p6_22_34_idx), p6_22_34_orig);
final Dummy p7_22_34_other = new Dummy(7, 22, 34);
Assert.assertEquals(p7_22_34_other, p7_22_34_orig);
Assert.assertTrue(p7_22_34_other.hashCode() == p7_22_34_orig.hashCode());
Assert.assertTrue(p7_22_34_other != p7_22_34_orig); // diff reference
final Dummy p6_22_34_other = new Dummy(6, 22, 34);
Assert.assertEquals(p6_22_34_other, p6_22_34_orig);
Assert.assertTrue(p6_22_34_other.hashCode() == p6_22_34_orig.hashCode());
Assert.assertTrue(p6_22_34_other != p6_22_34_orig); // diff reference
// slow get on position ..
final int i = l.indexOf(p6_22_34_other);
Dummy q = l.get(i);
Assert.assertNotNull(q);
Assert.assertEquals(p6_22_34_other, q);
Assert.assertTrue(p6_22_34_other.hashCode() == q.hashCode());
Assert.assertTrue(p6_22_34_other != q); // diff reference
Assert.assertTrue(p6_22_34_orig == q); // same reference
// fast identity ..
q = l.get(p6_22_34_other);
Assert.assertNotNull(q);
Assert.assertEquals(p6_22_34_other, q);
Assert.assertTrue(p6_22_34_other.hashCode() == q.hashCode());
Assert.assertTrue(p6_22_34_other != q); // diff reference
Assert.assertTrue(p6_22_34_orig == q); // same reference
Assert.assertTrue(!l.add(q)); // add same
Assert.assertTrue(!l.add(p6_22_34_other)); // add equivalent
q = l.getOrAdd(p6_22_34_other); // not added test w/ diff hash-obj
Assert.assertNotNull(q);
Assert.assertEquals(p6_22_34_other, q);
Assert.assertTrue(p6_22_34_other.hashCode() == q.hashCode());
Assert.assertTrue(p6_22_34_other != q); // diff reference
Assert.assertTrue(p6_22_34_orig == q); // same reference
Assert.assertTrue(checkOrder(l, 0, 10, 100));
Assert.assertTrue(checkOrder(l, 100, 6, 4));
final Dummy p1_2_3 = new Dummy(1, 2, 3); // a new one ..
q = l.getOrAdd(p1_2_3); // added test
Assert.assertNotNull(q);
Assert.assertEquals(p1_2_3, q);
Assert.assertTrue(p1_2_3.hashCode() == q.hashCode());
Assert.assertTrue(p1_2_3 == q); // _same_ reference, since getOrAdd added it
Assert.assertTrue(checkOrder(l, 0, 10, 100));
Assert.assertTrue(checkOrder(l, 100, 6, 4));
final Dummy pNull = null;
NullPointerException npe = null;
try {
q = l.getOrAdd(pNull);
Assert.assertNull(q);
} catch (final NullPointerException _npe) { npe = _npe; }
if( l.supportsNullValue() ) {
Assert.assertNull(npe);
} else {
Assert.assertNotNull(npe);
}
try {
Assert.assertTrue(l.remove(pNull));
} catch (final NullPointerException _npe) { npe = _npe; }
if( l.supportsNullValue() ) {
Assert.assertNull(npe);
} else {
Assert.assertNotNull(npe);
}
}
public static void main(final String args[]) throws IOException {
final String tstname = TestArrayHashSet01.class.getName();
org.junit.runner.JUnitCore.main(tstname);
}
}