content: /*
   * 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 com.datastax.dse.driver.api.core.graph.predicates;
  
  import static org.assertj.core.api.Assertions.assertThat;
  
  import com.datastax.dse.driver.api.core.data.geometry.LineString;
  import com.datastax.dse.driver.api.core.data.geometry.Point;
  import com.datastax.dse.driver.api.core.data.geometry.Polygon;
  import org.apache.tinkerpop.gremlin.process.traversal.P;
  import org.junit.Test;
  
  public class GeoTest {
  
    @Test
    public void should_convert_units_to_degrees() {
      assertThat(Geo.Unit.DEGREES.toDegrees(100.0)).isEqualTo(100.0);
      assertThat(Geo.Unit.MILES.toDegrees(68.9722)).isEqualTo(0.9982455747535043);
      assertThat(Geo.Unit.KILOMETERS.toDegrees(111.0)).isEqualTo(0.9982456082154465);
      assertThat(Geo.Unit.METERS.toDegrees(111000.0)).isEqualTo(0.9982456082154464);
    }
  
    @Test
    public void should_test_if_point_is_inside_circle_with_cartesian_coordinates() {
      P<Object> inside = Geo.inside(Point.fromCoordinates(30, 30), 14.142135623730951);
      assertThat(inside.test(Point.fromCoordinates(40, 40))).isTrue();
      assertThat(inside.test(Point.fromCoordinates(40.1, 40))).isFalse();
    }
  
    @Test
    public void should_test_if_point_is_inside_circle_with_geo_coordinates() {
      P<Object> inside =
          Geo.inside(Point.fromCoordinates(30, 30), 12.908258700131379, Geo.Unit.DEGREES);
      assertThat(inside.test(Point.fromCoordinates(40, 40))).isTrue();
      assertThat(inside.test(Point.fromCoordinates(40.1, 40))).isFalse();
    }
  
    @Test
    public void should_test_if_point_is_inside_polygon() {
      P<Object> inside =
          Geo.inside(
              Polygon.builder()
                  .addRing(
                      Point.fromCoordinates(30, 30),
                      Point.fromCoordinates(40, 40),
                      Point.fromCoordinates(40, 30))
                  .build());
      assertThat(inside.test(Point.fromCoordinates(35, 32))).isTrue();
      assertThat(inside.test(Point.fromCoordinates(33, 37))).isFalse();
    }
  
    @Test
    public void should_build_line_string_from_coordinates() {
      LineString lineString = Geo.lineString(1, 2, 3, 4, 5, 6);
      assertThat(lineString.getPoints())
          .hasSize(3)
          .contains(Point.fromCoordinates(1, 2))
          .contains(Point.fromCoordinates(3, 4))
          .contains(Point.fromCoordinates(5, 6));
    }
  
    @Test(expected = IllegalArgumentException.class)
    public void should_fail_to_build_line_string_if_not_enough_coordinates() {
      Geo.lineString(1, 2);
    }
  
    @Test(expected = IllegalArgumentException.class)
    public void should_fail_to_build_line_string_if_uneven_number_of_coordinates() {
      Geo.lineString(1, 2, 3, 4, 5);
    }
  
    @Test
    public void should_build_polygon_from_coordinates() {
      Polygon polygon = Geo.polygon(1, 2, 3, 4, 5, 6, 7, 8);
      assertThat(polygon.getExteriorRing())
          .hasSize(4)
          .contains(Point.fromCoordinates(1, 2))
          .contains(Point.fromCoordinates(3, 4))
          .contains(Point.fromCoordinates(5, 6))
          .contains(Point.fromCoordinates(7, 8));
      assertThat(polygon.getInteriorRings()).isEmpty();
    }
  
    @Test(expected = IllegalArgumentException.class)
    public void should_fail_to_build_polygon_if_not_enough_coordinates() {
      Geo.polygon(1, 2, 3, 4);
    }
  
    @Test(expected = IllegalArgumentException.class)
    public void should_fail_to_build_polygon_if_uneven_number_of_coordinates() {
      Geo.polygon(1, 2, 3, 4, 5, 6, 7);
    }
  }
  