/**
* 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.mahout.cf.taste.impl.common;
import org.apache.mahout.cf.taste.impl.TasteTestCase;
import org.junit.Test;
public final class BitSetTest extends TasteTestCase {
private static final int NUM_BITS = 100;
@Test
public void testGetSet() {
BitSet bitSet = new BitSet(NUM_BITS);
for (int i = 0; i < NUM_BITS; i++) {
assertFalse(bitSet.get(i));
}
bitSet.set(0);
bitSet.set(NUM_BITS-1);
assertTrue(bitSet.get(0));
assertTrue(bitSet.get(NUM_BITS-1));
}
@Test(expected = ArrayIndexOutOfBoundsException.class)
public void testBounds1() {
BitSet bitSet = new BitSet(NUM_BITS);
bitSet.set(1000);
}
@Test(expected = ArrayIndexOutOfBoundsException.class)
public void testBounds2() {
BitSet bitSet = new BitSet(NUM_BITS);
bitSet.set(-1);
}
@Test
public void testClear() {
BitSet bitSet = new BitSet(NUM_BITS);
for (int i = 0; i < NUM_BITS; i++) {
bitSet.set(i);
}
for (int i = 0; i < NUM_BITS; i++) {
assertTrue(bitSet.get(i));
}
bitSet.clear();
for (int i = 0; i < NUM_BITS; i++) {
assertFalse(bitSet.get(i));
}
}
@Test
public void testClone() {
BitSet bitSet = new BitSet(NUM_BITS);
bitSet.set(NUM_BITS-1);
bitSet = bitSet.clone();
assertTrue(bitSet.get(NUM_BITS-1));
}
}