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/*
* Licensed to Elasticsearch under one or more contributor
* license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright
* ownership. Elasticsearch 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.elasticsearch.common.hppc;
import com.carrotsearch.hppc.ObjectHashSet;
import org.elasticsearch.common.collect.HppcMaps;
import org.elasticsearch.test.ESTestCase;
import java.util.ArrayList;
import java.util.List;
import static org.hamcrest.Matchers.equalTo;
public class HppcMapsTests extends ESTestCase {
public void testIntersection() throws Exception {
boolean enabled = false;
assert enabled = true;
assumeTrue("assertions enabled", enabled);
ObjectHashSet<String> set1 = ObjectHashSet.from("1", "2", "3");
ObjectHashSet<String> set2 = ObjectHashSet.from("1", "2", "3");
List<String> values = toList(HppcMaps.intersection(set1, set2));
assertThat(values.size(), equalTo(3));
assertThat(values.contains("1"), equalTo(true));
assertThat(values.contains("2"), equalTo(true));
assertThat(values.contains("3"), equalTo(true));
set1 = ObjectHashSet.from("1", "2", "3");
set2 = ObjectHashSet.from("3", "4", "5");
values = toList(HppcMaps.intersection(set1, set2));
assertThat(values.size(), equalTo(1));
assertThat(values.get(0), equalTo("3"));
set1 = ObjectHashSet.from("1", "2", "3");
set2 = ObjectHashSet.from("4", "5", "6");
values = toList(HppcMaps.intersection(set1, set2));
assertThat(values.size(), equalTo(0));
set1 = ObjectHashSet.from();
set2 = ObjectHashSet.from("3", "4", "5");
values = toList(HppcMaps.intersection(set1, set2));
assertThat(values.size(), equalTo(0));
set1 = ObjectHashSet.from("1", "2", "3");
set2 = ObjectHashSet.from();
values = toList(HppcMaps.intersection(set1, set2));
assertThat(values.size(), equalTo(0));
set1 = ObjectHashSet.from();
set2 = ObjectHashSet.from();
values = toList(HppcMaps.intersection(set1, set2));
assertThat(values.size(), equalTo(0));
set1 = null;
set2 = ObjectHashSet.from();
try {
toList(HppcMaps.intersection(set1, set2));
fail();
} catch (AssertionError e) {}
set1 = ObjectHashSet.from();
set2 = null;
try {
toList(HppcMaps.intersection(set1, set2));
fail();
} catch (AssertionError e) {}
set1 = null;
set2 = null;
try {
toList(HppcMaps.intersection(set1, set2));
fail();
} catch (AssertionError e) {}
}
private List<String> toList(Iterable<String> iterable) {
List<String> list = new ArrayList<>();
for (String s : iterable) {
list.add(s);
}
return list;
}
}
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