293 lines
12 KiB
C++
293 lines
12 KiB
C++
/*****************************************************************************
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*
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* This file is part of Mapnik (c++ mapping toolkit)
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*
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* Copyright (C) 2015 Artem Pavlenko
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*
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*****************************************************************************/
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#include "catch.hpp"
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#include <mapnik/map.hpp>
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#include <mapnik/datasource.hpp>
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#include <mapnik/datasource_cache.hpp>
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#include <mapnik/geometry.hpp>
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#include <mapnik/geometry_type.hpp>
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#include <mapnik/util/fs.hpp>
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#include <cstdlib>
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namespace detail {
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mapnik::feature_ptr fetch_first_feature(std::string const& filename, bool cache_features)
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{
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mapnik::parameters params;
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params["type"] = "geojson";
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params["file"] = filename;
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params["cache-features"] = cache_features;
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auto ds = mapnik::datasource_cache::instance().create(params);
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auto fields = ds->get_descriptor().get_descriptors();
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mapnik::query query(ds->envelope());
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for (auto const& field : fields)
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{
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query.add_property_name(field.get_name());
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}
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auto features = ds->features(query);
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auto feature = features->next();
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return feature;
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}
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int create_disk_index(std::string const& filename, bool silent)
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{
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std::string cmd = "mapnik-index " + filename;
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if (silent)
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{
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#ifndef _WINDOWS
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cmd += " 2>/dev/null";
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#else
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cmd += "2> nul";
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#endif
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}
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return std::system(cmd.c_str());
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}
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}
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TEST_CASE("geojson") {
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std::string geojson_plugin("./plugins/input/geojson.input");
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if (mapnik::util::exists(geojson_plugin))
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{
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SECTION("GeoJSON Point")
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{
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for (auto cache_features : {true, false})
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{
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auto feature = detail::fetch_first_feature("./test/data/json/point.json", cache_features);
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auto const& geometry = feature->get_geometry();
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REQUIRE(mapnik::geometry::geometry_type(geometry) == mapnik::geometry::Point);
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auto const& pt = mapnik::util::get<mapnik::geometry::point<double> >(geometry);
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REQUIRE(pt.x == 100);
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REQUIRE(pt.y == 0);
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}
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}
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SECTION("GeoJSON LineString")
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{
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for (auto cache_features : {true, false})
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{
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auto feature = detail::fetch_first_feature("./test/data/json/linestring.json", cache_features);
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auto const& geometry = feature->get_geometry();
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REQUIRE(mapnik::geometry::geometry_type(geometry) == mapnik::geometry::LineString);
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auto const& line = mapnik::util::get<mapnik::geometry::line_string<double> >(geometry);
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REQUIRE(line.size() == 2);
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REQUIRE(mapnik::geometry::envelope(line) == mapnik::box2d<double>(100,0,101,1));
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}
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}
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SECTION("GeoJSON Polygon")
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{
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for (auto cache_features : {true, false})
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{
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auto feature = detail::fetch_first_feature("./test/data/json/polygon.json", cache_features);
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auto const& geometry = feature->get_geometry();
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REQUIRE(mapnik::geometry::geometry_type(geometry) == mapnik::geometry::Polygon);
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auto const& poly = mapnik::util::get<mapnik::geometry::polygon<double> >(geometry);
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REQUIRE(poly.num_rings() == 2);
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REQUIRE(poly.exterior_ring.size() == 5);
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REQUIRE(poly.interior_rings.size() == 1);
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REQUIRE(poly.interior_rings[0].size() == 5);
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REQUIRE(mapnik::geometry::envelope(poly) == mapnik::box2d<double>(100,0,101,1));
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}
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}
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SECTION("GeoJSON MultiPoint")
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{
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for (auto cache_features : {true, false})
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{
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auto feature = detail::fetch_first_feature("./test/data/json/multipoint.json", cache_features);
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auto const& geometry = feature->get_geometry();
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REQUIRE(mapnik::geometry::geometry_type(geometry) == mapnik::geometry::MultiPoint);
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auto const& multi_pt = mapnik::util::get<mapnik::geometry::multi_point<double> >(geometry);
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REQUIRE(multi_pt.size() == 2);
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REQUIRE(mapnik::geometry::envelope(multi_pt) == mapnik::box2d<double>(100,0,101,1));
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}
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}
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SECTION("GeoJSON MultiLineString")
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{
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for (auto cache_features : {true, false})
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{
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auto feature = detail::fetch_first_feature("./test/data/json/multilinestring.json", cache_features);
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auto const& geometry = feature->get_geometry();
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REQUIRE(mapnik::geometry::geometry_type(geometry) == mapnik::geometry::MultiLineString);
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auto const& multi_line = mapnik::util::get<mapnik::geometry::multi_line_string<double> >(geometry);
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REQUIRE(multi_line.size() == 2);
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REQUIRE(multi_line[0].size() == 2);
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REQUIRE(multi_line[1].size() == 2);
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REQUIRE(mapnik::geometry::envelope(multi_line) == mapnik::box2d<double>(100,0,103,3));
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}
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}
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SECTION("GeoJSON MultiPolygon")
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{
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for (auto cache_features : {true, false})
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{
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auto feature = detail::fetch_first_feature("./test/data/json/multipolygon.json", cache_features);
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// test
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auto const& geometry = feature->get_geometry();
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REQUIRE(mapnik::geometry::geometry_type(geometry) == mapnik::geometry::MultiPolygon);
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auto const& multi_poly = mapnik::util::get<mapnik::geometry::multi_polygon<double> >(geometry);
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REQUIRE(multi_poly.size() == 2);
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REQUIRE(multi_poly[0].num_rings() == 1);
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REQUIRE(multi_poly[1].num_rings() == 2);
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REQUIRE(mapnik::geometry::envelope(multi_poly) == mapnik::box2d<double>(100,0,103,3));
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}
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}
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SECTION("GeoJSON GeometryCollection")
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{
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for (auto cache_features : {true, false})
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{
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auto feature = detail::fetch_first_feature("./test/data/json/geometrycollection.json", cache_features);
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// test
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auto const& geometry = feature->get_geometry();
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REQUIRE(mapnik::geometry::geometry_type(geometry) == mapnik::geometry::GeometryCollection);
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auto const& collection = mapnik::util::get<mapnik::geometry::geometry_collection<double> >(geometry);
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REQUIRE(collection.size() == 2);
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REQUIRE(mapnik::geometry::geometry_type(collection[0]) == mapnik::geometry::Point);
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REQUIRE(mapnik::geometry::geometry_type(collection[1]) == mapnik::geometry::LineString);
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REQUIRE(mapnik::geometry::envelope(collection) == mapnik::box2d<double>(100,0,102,1));
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}
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}
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SECTION("GeoJSON Feature")
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{
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// Create datasource
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mapnik::parameters params;
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params["type"] = "geojson";
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params["file"] = "./test/data/json/feature.json";
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for (auto cache_features : {true, false})
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{
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params["cache-features"] = cache_features;
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auto ds = mapnik::datasource_cache::instance().create(params);
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REQUIRE(bool(ds));
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auto fields = ds->get_descriptor().get_descriptors();
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mapnik::query query(ds->envelope());
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for (auto const& field : fields)
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{
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query.add_property_name(field.get_name());
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}
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auto features = ds->features(query);
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REQUIRE(features != nullptr);
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auto feature = features->next();
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REQUIRE(feature != nullptr);
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}
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}
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SECTION("GeoJSON FeatureCollection")
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{
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std::string filename("./test/data/json/featurecollection.json");
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for (auto create_index : { true, false })
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{
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if (create_index)
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{
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detail::create_disk_index(filename, true);
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CHECK(mapnik::util::exists(filename + ".index"));
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}
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mapnik::parameters params;
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params["type"] = "geojson";
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params["file"] = filename;
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for (auto cache_features : {true, false})
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{
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params["cache_features"] = cache_features;
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auto ds = mapnik::datasource_cache::instance().create(params);
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auto fields = ds->get_descriptor().get_descriptors();
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mapnik::query query(ds->envelope());
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for (auto const& field : fields)
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{
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query.add_property_name(field.get_name());
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}
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auto features = ds->features(query);
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auto bounding_box = ds->envelope();
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mapnik::box2d<double> bbox;
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mapnik::value_integer count = 0;
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while (true)
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{
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auto feature = features->next();
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if (!feature) break;
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if (!bbox.valid()) bbox = feature->envelope();
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else bbox.expand_to_include(feature->envelope());
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++count;
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REQUIRE(feature->id() == count);
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}
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REQUIRE(count == 3);
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REQUIRE(bounding_box == bbox);
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}
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if (mapnik::util::exists(filename + ".index"))
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{
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CHECK(mapnik::util::remove(filename + ".index"));
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}
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}
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}
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SECTION("GeoJSON extra properties")
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{
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// Create datasource
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mapnik::parameters params;
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params["type"] = "geojson";
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params["file"] = "./test/data/json/feature_collection_extra_properties.json";
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for (auto cache_features : {true, false})
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{
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params["cache-features"] = cache_features;
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auto ds = mapnik::datasource_cache::instance().create(params);
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REQUIRE(bool(ds));
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auto fields = ds->get_descriptor().get_descriptors();
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mapnik::query query(ds->envelope());
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for (auto const& field : fields)
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{
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query.add_property_name(field.get_name());
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}
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auto features = ds->features(query);
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REQUIRE(features != nullptr);
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auto feature = features->next();
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REQUIRE(feature != nullptr);
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REQUIRE(feature->envelope() == mapnik::box2d<double>(123,456,123,456));
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}
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}
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SECTION("GeoJSON ensure input fully consumed and throw exception otherwise")
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{
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mapnik::parameters params;
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params["type"] = "geojson";
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params["file"] = "./test/data/json/points-malformed.geojson"; // mismatched parentheses
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for (auto cache_features : {true, false})
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{
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params["cache-features"] = cache_features;
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REQUIRE_THROWS(mapnik::datasource_cache::instance().create(params));
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params["cache-features"] = true;
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REQUIRE_THROWS(mapnik::datasource_cache::instance().create(params));
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}
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}
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}
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}
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