/*
 * 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.document;

import java.util.HashSet;
import java.util.Set;
import org.apache.lucene.geo.XYPolygon;
import org.apache.lucene.tests.util.LuceneTestCase;
import org.apache.lucene.util.BytesRef;

public class TestTessellatorCureAddsTriangleTwice extends LuceneTestCase {

  public void testCuredTriangleIndexedOnce() {
    // self-crossing ring POLYGON((6 3, 0 6, 4 0, 3 4, 5 1, 3 2, 6 3)), repaired by the cure step
    XYPolygon polygon =
        new XYPolygon(new float[] {6, 0, 4, 3, 5, 3, 6}, new float[] {3, 6, 0, 4, 1, 2, 3});
    Field[] triangles = XYShape.createIndexableFields("f", polygon);
    Set<BytesRef> distinct = new HashSet<>();
    for (Field triangle : triangles) {
      distinct.add(triangle.binaryValue());
    }
    assertEquals(
        "indexed triangles (expected: each distinct triangle once)",
        distinct.size(),
        triangles.length);
  }
}