GeoJsonModuleUnitTests.java

/*
 * Copyright 2015-2017 the original author or authors.
 *
 * 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.springframework.data.mongodb.core.geo;

import static org.hamcrest.CoreMatchers.*;
import static org.junit.Assert.*;

import java.io.IOException;
import java.util.Arrays;

import org.junit.Before;
import org.junit.Test;
import org.springframework.data.geo.Point;

import com.fasterxml.jackson.core.JsonParseException;
import com.fasterxml.jackson.databind.JsonMappingException;
import com.fasterxml.jackson.databind.ObjectMapper;

/**
 * @author Christoph Strobl
 */
public class GeoJsonModuleUnitTests {

	ObjectMapper mapper;

	@Before
	public void setUp() {

		mapper = new ObjectMapper();
		mapper.registerModule(new GeoJsonModule());
	}

	@Test // DATAMONGO-1181
	public void shouldDeserializeJsonPointCorrectly() throws JsonParseException, JsonMappingException, IOException {

		String json = "{ \"type\": \"Point\", \"coordinates\": [10.0, 20.0] }";

		assertThat(mapper.readValue(json, GeoJsonPoint.class), is(new GeoJsonPoint(10D, 20D)));
	}

	@Test // DATAMONGO-1181
	public void shouldDeserializeGeoJsonLineStringCorrectly() throws JsonParseException, JsonMappingException,
			IOException {

		String json = "{ \"type\": \"LineString\", \"coordinates\": [ [10.0, 20.0], [30.0, 40.0], [50.0, 60.0] ]}";

		assertThat(mapper.readValue(json, GeoJsonLineString.class),
				is(new GeoJsonLineString(Arrays.asList(new Point(10, 20), new Point(30, 40), new Point(50, 60)))));
	}

	@Test // DATAMONGO-1181
	public void shouldDeserializeGeoJsonMultiPointCorrectly() throws JsonParseException, JsonMappingException,
			IOException {

		String json = "{ \"type\": \"MultiPoint\", \"coordinates\": [ [10.0, 20.0], [30.0, 40.0], [50.0, 60.0] ]}";

		assertThat(mapper.readValue(json, GeoJsonLineString.class),
				is(new GeoJsonMultiPoint(Arrays.asList(new Point(10, 20), new Point(30, 40), new Point(50, 60)))));
	}

	@Test // DATAMONGO-1181
	@SuppressWarnings("unchecked")
	public void shouldDeserializeGeoJsonMultiLineStringCorrectly() throws JsonParseException, JsonMappingException,
			IOException {

		String json = "{ \"type\": \"MultiLineString\", \"coordinates\": [ [ [10.0, 20.0], [30.0, 40.0] ], [ [50.0, 60.0] , [70.0, 80.0] ] ]}";

		assertThat(
				mapper.readValue(json, GeoJsonMultiLineString.class),
				is(new GeoJsonMultiLineString(Arrays.asList(new Point(10, 20), new Point(30, 40)), Arrays.asList(new Point(50,
						60), new Point(70, 80)))));
	}

	@Test // DATAMONGO-1181
	public void shouldDeserializeGeoJsonPolygonCorrectly() throws JsonParseException, JsonMappingException, IOException {

		String json = "{ \"type\": \"Polygon\", \"coordinates\": [ [ [100.0, 0.0], [101.0, 0.0], [101.0, 1.0], [100.0, 1.0], [100.0, 0.0] ] ]}";

		assertThat(
				mapper.readValue(json, GeoJsonPolygon.class),
				is(new GeoJsonPolygon(Arrays.asList(new Point(100, 0), new Point(101, 0), new Point(101, 1), new Point(100, 1),
						new Point(100, 0)))));
	}

	@Test // DATAMONGO-1181
	public void shouldDeserializeGeoJsonMultiPolygonCorrectly() throws JsonParseException, JsonMappingException,
			IOException {

		String json = "{ \"type\": \"Polygon\", \"coordinates\": ["
				+ "[[[102.0, 2.0], [103.0, 2.0], [103.0, 3.0], [102.0, 3.0], [102.0, 2.0]]],"
				+ "[[[100.0, 0.0], [101.0, 0.0], [101.0, 1.0], [100.0, 1.0], [100.0, 0.0]],"
				+ "[[100.2, 0.2], [100.8, 0.2], [100.8, 0.8], [100.2, 0.8], [100.2, 0.2]]]"//
				+ "]}";

		assertThat(
				mapper.readValue(json, GeoJsonMultiPolygon.class),
				is(new GeoJsonMultiPolygon(Arrays.asList(
						new GeoJsonPolygon(Arrays.asList(new Point(102, 2), new Point(103, 2), new Point(103, 3),
								new Point(102, 3), new Point(102, 2))),
						new GeoJsonPolygon(Arrays.asList(new Point(100, 0), new Point(101, 0), new Point(101, 1),
								new Point(100, 1), new Point(100, 0))),
						new GeoJsonPolygon(Arrays.asList(new Point(100.2, 0.2), new Point(100.8, 0.2), new Point(100.8, 0.8),
								new Point(100.2, 0.8), new Point(100.2, 0.2)))))));

	}
}