/*
* Copyright (c) 2008-2017, Hazelcast, Inc. All Rights Reserved.
*
* 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 com.hazelcast.util;
import com.hazelcast.test.HazelcastParallelClassRunner;
import com.hazelcast.test.HazelcastTestSupport;
import com.hazelcast.test.annotation.ParallelTest;
import com.hazelcast.test.annotation.QuickTest;
import org.junit.Before;
import org.junit.Test;
import org.junit.experimental.categories.Category;
import org.junit.runner.RunWith;
import java.util.ArrayList;
import java.util.BitSet;
import java.util.List;
import static org.junit.Assert.assertFalse;
import static org.junit.Assert.assertTrue;
@RunWith(HazelcastParallelClassRunner.class)
@Category({QuickTest.class, ParallelTest.class})
public class BitSetUtilsTest extends HazelcastTestSupport {
private static final int SIZE = 10;
private BitSet bitSet;
private List<Integer> indexes;
@Before
public void setUp() {
bitSet = new BitSet(SIZE);
indexes = new ArrayList<Integer>(SIZE);
for (int i = 0; i < SIZE; i++) {
indexes.add(i);
}
}
@Test
public void testConstructor() {
assertUtilityConstructor(BitSetUtils.class);
}
@Test
public void hasAtLeastOneBitSet_whenEmptyBitSet_thenReturnFalse() {
boolean isBitSet = BitSetUtils.hasAtLeastOneBitSet(bitSet, indexes);
assertFalse(isBitSet);
}
@Test
public void hasAtLeastOneBitSet_whenBitIsSet_thenReturnTrue() {
for (int position = 0; position < SIZE; position++) {
bitSet = new BitSet(SIZE);
bitSet.set(position);
boolean isBitSet = BitSetUtils.hasAtLeastOneBitSet(bitSet, indexes);
assertTrue(isBitSet);
}
}
@Test
public void setBits_thenSetAllBits() {
BitSetUtils.setBits(bitSet, indexes);
assertBitsAtPositionsAreSet(bitSet, indexes);
}
private static void assertBitsAtPositionsAreSet(BitSet bitSet, List<Integer> indexes) {
for (int index : indexes) {
boolean isSet = bitSet.get(index);
assertTrue(isSet);
}
}
}