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/*
* Copyright (C) 2017 Sebastiano Vigna
*
* Licensed 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 it.unimi.dsi.fastutil.objects;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertTrue;
import java.util.Random;
import org.junit.Test;
import it.unimi.dsi.fastutil.Hash;
import it.unimi.dsi.fastutil.MainRunner;
import it.unimi.dsi.fastutil.bytes.ByteArrays;
public class ObjectOpenCustomHashSetTest {
@Test
public void testGetNullKey() {
final ObjectOpenCustomHashSet<Integer> s = new ObjectOpenCustomHashSet<>(new Hash.Strategy<Integer>() {
@Override
public int hashCode(Integer o) {
return o == null ? 0 : o.intValue() % 10;
}
@Override
public boolean equals(Integer a, Integer b) {
if (((a == null) != (b == null)) || a == null) return false;
return ((a.intValue() - b.intValue()) % 10) == 0;
}
});
s.add(Integer.valueOf(10));
assertTrue(s.contains(Integer.valueOf(0)));
assertEquals(10, s.iterator().next().intValue());
}
@Test
public void testNullKey() {
Random random = new Random(0);
ObjectOpenCustomHashSet<byte[]> s = new ObjectOpenCustomHashSet<>(ByteArrays.HASH_STRATEGY);
for(int i = 0; i < 1000000; i++) {
byte[] a = new byte[random.nextInt(10)];
for(int j = a.length; j-- != 0;) a[j] = (byte) random.nextInt(4);
s.add(a);
}
}
@Test
public void testLegacyMainMethodTests() throws Exception {
MainRunner.callMainIfExists(ObjectOpenCustomHashSet.class, "test", /*num=*/"500", /*loadFactor=*/"0.75", /*seed=*/"3834745");
}
}
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