/**
* 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.fusesource.hawtdb.internal.util;
import static org.fusesource.hawtdb.internal.util.Ranges.range;
import static org.junit.Assert.assertEquals;
import java.util.ArrayList;
import org.fusesource.hawtdb.internal.util.Ranges;
import org.fusesource.hawtdb.internal.util.Ranges.Range;
import org.junit.Test;
/**
*
* @author <a href="http://hiramchirino.com">Hiram Chirino</a>
*/
public class RangesTest {
@Test
public void test() {
Ranges ranges = new Ranges();
// Example of a simple range merges..
ranges.add(0, 5);
ranges.add(15, 5);
ranges.add(5,10);
assertEquals(ranges(range(0,20)), ranges.toArrayList());
// Remove which splits an existing range into 2.
ranges.remove(5,10);
assertEquals(ranges(range(0,5),range(15,20)), ranges.toArrayList());
// overlapping add...
ranges.add(4,12);
assertEquals(ranges(range(0,20)), ranges.toArrayList());
// Removes are idempotent
ranges.remove(5,10);
assertEquals(ranges(range(0,5),range(15,20)), ranges.toArrayList());
ranges.remove(5,10);
assertEquals(ranges(range(0,5),range(15,20)), ranges.toArrayList());
// Adds are idempotent
ranges.add(5,10);
assertEquals(ranges(range(0,20)), ranges.toArrayList());
ranges.add(5,10);
assertEquals(ranges(range(0,20)), ranges.toArrayList());
}
ArrayList<Range> ranges(Range... args) {
ArrayList<Range> rc = new ArrayList<Range>();
for (Range range : args) {
rc.add(range);
}
return rc;
}
}