/*
* Copyright 2015 Red Hat, Inc. and/or its affiliates.
*
* 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 org.optaplanner.core.impl.domain.variable.listener.support;
import java.util.Arrays;
import org.junit.Test;
import static org.junit.Assert.*;
public class SmallScalingOrderedSetTest {
@Test
public void addRemoveAroundThreshold() {
SmallScalingOrderedSet<String> set = new SmallScalingOrderedSet<>();
assertTrue(set.add("s1"));
assertFalse(set.add("s1"));
assertTrue(set.add("s2"));
assertFalse(set.add("s1"));
assertFalse(set.add("s2"));
assertTrue(set.remove("s2"));
assertFalse(set.remove("s2"));
assertTrue(set.add("s2"));
assertEquals(2, set.size());
assertTrue(set.contains("s1"));
assertTrue(set.contains("s2"));
for (int i = 0; i < SmallScalingOrderedSet.LIST_SIZE_THRESHOLD - 3; i++) {
set.add("filler " + i);
}
assertFalse(set.add("s2"));
assertTrue(set.add("s3"));
assertFalse(set.add("s2"));
assertEquals(SmallScalingOrderedSet.LIST_SIZE_THRESHOLD, set.size());
assertTrue(set.add("s4"));
assertFalse(set.add("s2"));
assertFalse(set.add("s3"));
assertFalse(set.add("s4"));
assertEquals(SmallScalingOrderedSet.LIST_SIZE_THRESHOLD + 1, set.size());
assertTrue(set.remove("s4"));
assertFalse(set.add("s2"));
assertFalse(set.add("s3"));
assertEquals(SmallScalingOrderedSet.LIST_SIZE_THRESHOLD, set.size());
assertTrue(set.add("s5"));
assertFalse(set.add("s2"));
assertFalse(set.add("s3"));
assertEquals(SmallScalingOrderedSet.LIST_SIZE_THRESHOLD + 1, set.size());
assertTrue(set.add("s6"));
assertFalse(set.add("s2"));
assertFalse(set.add("s3"));
assertEquals(SmallScalingOrderedSet.LIST_SIZE_THRESHOLD + 2, set.size());
assertTrue(set.contains("s1"));
assertTrue(set.contains("s2"));
assertTrue(set.contains("s3"));
assertFalse(set.contains("s4"));
assertTrue(set.contains("s5"));
assertTrue(set.contains("s6"));
}
@Test
public void addAllAroundThreshold() {
SmallScalingOrderedSet<String> set = new SmallScalingOrderedSet<>();
assertTrue(set.addAll(Arrays.asList("s1", "s2", "s3")));
assertEquals(3, set.size());
assertTrue(set.addAll(Arrays.asList("s1", "s3", "s4", "s5")));
assertFalse(set.addAll(Arrays.asList("s1", "s2", "s4")));
assertEquals(5, set.size());
assertTrue(set.contains("s1"));
assertTrue(set.contains("s2"));
assertTrue(set.contains("s3"));
assertTrue(set.contains("s4"));
assertTrue(set.contains("s5"));
for (int i = 0; i < SmallScalingOrderedSet.LIST_SIZE_THRESHOLD - 7; i++) {
set.add("filler " + i);
}
assertEquals(SmallScalingOrderedSet.LIST_SIZE_THRESHOLD - 2, set.size());
assertTrue(set.addAll(Arrays.asList("s6", "s7", "s2", "s3", "s8", "s9")));
assertEquals(SmallScalingOrderedSet.LIST_SIZE_THRESHOLD + 2, set.size());
assertTrue(set.remove("s1"));
assertTrue(set.remove("s5"));
assertEquals(SmallScalingOrderedSet.LIST_SIZE_THRESHOLD, set.size());
assertTrue(set.addAll(Arrays.asList("s1", "s2", "s10")));
assertEquals(SmallScalingOrderedSet.LIST_SIZE_THRESHOLD + 2, set.size());
assertTrue(set.contains("s1"));
assertTrue(set.contains("s2"));
assertTrue(set.contains("s3"));
assertTrue(set.contains("s4"));
assertFalse(set.contains("s5"));
assertTrue(set.contains("s6"));
assertTrue(set.contains("s7"));
assertTrue(set.contains("s8"));
assertTrue(set.contains("s9"));
assertTrue(set.contains("s10"));
}
}