/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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 org.apache.giraph.comm;
import org.apache.giraph.utils.IncreasingBitSet;
import org.junit.Test;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertFalse;
import static org.junit.Assert.assertTrue;
/**
* Test IncreasingBitSetTest
*/
public class IncreasingBitSetTest {
@Test
public void add256kIntegers() {
IncreasingBitSet IncreasingBitSet = new IncreasingBitSet();
for (int i = 0; i < 256 * 1024; ++i) {
assertFalse(IncreasingBitSet.has(i));
assertTrue(IncreasingBitSet.add(i));
assertTrue(IncreasingBitSet.has(i));
assertTrue(IncreasingBitSet.size() <=
IncreasingBitSet.MIN_BITS_TO_SHIFT);
}
assertEquals(256 * 1024L, IncreasingBitSet.getLastBaseKey());
}
@Test
public void add256kIntegersAlternate() {
IncreasingBitSet IncreasingBitSet = new IncreasingBitSet();
for (int i = 0; i < 256 * 1024; i += 2) {
assertFalse(IncreasingBitSet.has(i));
assertTrue(IncreasingBitSet.add(i));
assertTrue(IncreasingBitSet.has(i));
assertFalse(IncreasingBitSet.has(i + 1));
assertTrue(IncreasingBitSet.size() <= 256 * 1024);
}
assertEquals(128 * 1024L, IncreasingBitSet.cardinality());
for (int i = 1; i < 256 * 1024; i += 2) {
assertFalse(IncreasingBitSet.has(i));
assertTrue(IncreasingBitSet.add(i));
assertTrue(IncreasingBitSet.has(i));
assertTrue(IncreasingBitSet.has(i - 1));
assertTrue(IncreasingBitSet.size() <= 256 * 1024);
}
assertEquals(256 * 1024L, IncreasingBitSet.cardinality());
}
@Test
public void add256kIntegersOutOfOrder() {
IncreasingBitSet IncreasingBitSet = new IncreasingBitSet();
for (int i = 128 * 1024; i < 256 * 1024; ++i) {
assertFalse(IncreasingBitSet.has(i));
assertTrue(IncreasingBitSet.add(i));
assertTrue(IncreasingBitSet.has(i));
assertTrue(IncreasingBitSet.size() <= 512 * 1024);
}
assertEquals(128 * 1024L, IncreasingBitSet.cardinality());
for (int i = 0; i < 128 * 1024; ++i) {
assertFalse(IncreasingBitSet.has(i));
assertTrue(IncreasingBitSet.add(i));
assertTrue(IncreasingBitSet.has(i));
assertTrue(IncreasingBitSet.size() <= 512 * 1024);
}
assertEquals(256 * 1024L, IncreasingBitSet.cardinality());
assertEquals(256 * 1024L, IncreasingBitSet.getLastBaseKey());
}
}