/*
* 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.lucene.spatial.util;
import org.apache.lucene.spatial.geopoint.document.GeoPointField;
import org.apache.lucene.util.BytesRefBuilder;
import org.apache.lucene.util.LuceneTestCase;
import static org.apache.lucene.geo.GeoTestUtil.nextLatitude;
import static org.apache.lucene.geo.GeoTestUtil.nextLongitude;
import static org.apache.lucene.spatial.geopoint.document.GeoPointField.encodeLatLon;
import static org.apache.lucene.spatial.geopoint.document.GeoPointField.geoCodedToPrefixCoded;
import static org.apache.lucene.spatial.geopoint.document.GeoPointField.prefixCodedToGeoCoded;
/**
* Tests encoding methods in {@link GeoPointField}
*/
public class TestGeoPointField extends LuceneTestCase {
/**
* Tests stability of {@link GeoPointField#geoCodedToPrefixCoded}
*/
public void testGeoPrefixCoding() throws Exception {
int numIters = atLeast(1000);
long hash;
long decodedHash;
BytesRefBuilder brb = new BytesRefBuilder();
while (numIters-- >= 0) {
hash = encodeLatLon(nextLatitude(), nextLongitude());
for (int i=32; i<64; ++i) {
geoCodedToPrefixCoded(hash, i, brb);
decodedHash = prefixCodedToGeoCoded(brb.get());
assertEquals((hash >>> i) << i, decodedHash);
}
}
}
}