mapnik/test/unit/datasource/geojson.cpp
2022-02-14 10:15:09 +01:00

967 lines
41 KiB
C++

/*****************************************************************************
*
* This file is part of Mapnik (c++ mapping toolkit)
*
* Copyright (C) 2021 Artem Pavlenko
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*
*****************************************************************************/
#include "catch.hpp"
#include "ds_test_util.hpp"
#include <mapnik/unicode.hpp>
#include <mapnik/datasource.hpp>
#include <mapnik/datasource_cache.hpp>
#include <mapnik/geometry.hpp>
#include <mapnik/geometry/geometry_type.hpp>
#include <mapnik/json/geometry_parser.hpp>
#include <mapnik/util/geometry_to_geojson.hpp>
#include <mapnik/util/fs.hpp>
#include <cstdlib>
#include <algorithm>
#include <cctype>
#include <locale>
#include <boost/optional/optional_io.hpp>
/*
Compile and run just this test:
clang++ -o test-geojson -g -I./test/ test/unit/run.cpp test/unit/datasource/geojson.cpp `mapnik-config --all-flags`
./test-geojson -d yes
*/
namespace {
std::pair<mapnik::datasource_ptr, mapnik::feature_ptr> fetch_first_feature(std::string const& filename,
bool cache_features)
{
mapnik::parameters params;
params["type"] = "geojson";
params["file"] = filename;
params["cache_features"] = cache_features;
auto ds = mapnik::datasource_cache::instance().create(params);
CHECK(ds->type() == mapnik::datasource::datasource_t::Vector);
auto fields = ds->get_descriptor().get_descriptors();
mapnik::query query(ds->envelope());
for (auto const& field : fields)
{
query.add_property_name(field.get_name());
}
auto features = ds->features(query);
auto feature = features->next();
return std::make_pair(ds, feature);
}
void iterate_over_features(mapnik::featureset_ptr features)
{
auto feature = features->next();
while (feature != nullptr)
{
feature = features->next();
}
}
} // namespace
TEST_CASE("geojson")
{
const bool have_geojson_plugin = mapnik::datasource_cache::instance().plugin_registered("geojson");
if (have_geojson_plugin)
{
SECTION("GeoJSON I/O errors")
{
std::string filename = "does_not_exist.geojson";
for (auto create_index : {true, false})
{
if (create_index)
{
int ret = create_disk_index(filename);
int ret_posix = (ret >> 8) & 0x000000ff;
INFO(ret);
INFO(ret_posix);
// index wont be created
CHECK(!mapnik::util::exists(filename + ".index"));
}
for (auto cache_features : {true, false})
{
mapnik::parameters params;
params["type"] = "geojson";
params["file"] = filename;
params["cache_features"] = cache_features;
REQUIRE_THROWS(mapnik::datasource_cache::instance().create(params));
}
}
}
SECTION("GeoJSON an empty FeatureCollection")
{
for (auto cache_features : {true, false})
{
mapnik::parameters params;
params["type"] = "geojson";
params["file"] = "./test/data/json/empty_featurecollection.json";
params["cache_features"] = cache_features;
REQUIRE_THROWS(mapnik::datasource_cache::instance().create(params));
}
}
SECTION("GeoJSON empty Geometries handling")
{
auto valid_empty_geometries = {"null", // Point can't be empty
"{ \"type\": \"LineString\", \"coordinates\": [] }",
"{ \"type\": \"Polygon\", \"coordinates\": [ [ ] ] } ",
"{ \"type\": \"MultiPoint\", \"coordinates\": [ ] }",
"{ \"type\": \"MultiLineString\", \"coordinates\": [ [] ] }",
"{ \"type\": \"MultiPolygon\", \"coordinates\": [[ []] ] }"};
for (auto const& in : valid_empty_geometries)
{
std::string json(in);
mapnik::geometry::geometry<double> geom;
CHECK(mapnik::json::from_geojson(json, geom));
// round trip
std::string json_out;
CHECK(mapnik::util::to_geojson(json_out, geom));
json.erase(std::remove_if(std::begin(json),
std::end(json),
[l = std::locale{}](auto ch) { return std::isspace(ch, l); }),
std::end(json));
REQUIRE(json == json_out);
}
auto invalid_empty_geometries = {"{ \"type\": \"Point\", \"coordinates\": [] }",
"{ \"type\": \"LineString\", \"coordinates\": [[]] }"
"{ \"type\": \"Polygon\", \"coordinates\": [[[]]] }",
"{ \"type\": \"MultiPoint\", \"coordinates\": [[]] }",
"{ \"type\": \"MultiLineString\", \"coordinates\": [[[]]] }",
"{ \"type\": \"MultiPolygon\", \"coordinates\": [[[[]]]] }"};
for (auto const& json : invalid_empty_geometries)
{
mapnik::geometry::geometry<double> geom;
CHECK(!mapnik::json::from_geojson(json, geom));
}
}
SECTION("GeoJSON num_features_to_query")
{
std::string filename = "./test/data/json/featurecollection-multipleprops.geojson";
for (mapnik::value_integer num_features_to_query : {mapnik::value_integer(-1),
mapnik::value_integer(0),
mapnik::value_integer(1),
mapnik::value_integer(2),
mapnik::value_integer(3),
std::numeric_limits<mapnik::value_integer>::max()})
{
for (auto create_index : {true, false})
{
if (create_index)
{
int ret = create_disk_index(filename);
int ret_posix = (ret >> 8) & 0x000000ff;
INFO(ret);
INFO(ret_posix);
CHECK(mapnik::util::exists(filename + ".index"));
}
for (auto cache_features : {true, false})
{
mapnik::parameters params;
params["type"] = "geojson";
params["file"] = filename;
params["cache_features"] = cache_features;
params["num_features_to_query"] = num_features_to_query;
auto ds = mapnik::datasource_cache::instance().create(params);
CHECK(ds != nullptr);
auto fields = ds->get_descriptor().get_descriptors();
if (!create_index && cache_features)
{
// when there's no index and caching is enabled descriptor is always fully initialised
REQUIRE(fields.size() == 2);
}
else
{
// at least 1 feature should be queried
REQUIRE(fields.size() == std::min(std::max(mapnik::value_integer(1), num_features_to_query),
mapnik::value_integer(2)));
}
}
// cleanup
if (create_index && mapnik::util::exists(filename + ".index"))
{
mapnik::util::remove(filename + ".index");
}
}
}
}
SECTION("GeoJSON attribute descriptors are alphabetically ordered")
{
for (auto cache_features : {true, false})
{
mapnik::parameters params;
params["type"] = "geojson";
params["file"] = "./test/data/json/properties.json";
params["cache_features"] = cache_features;
auto ds = mapnik::datasource_cache::instance().create(params);
CHECK(ds != nullptr);
std::vector<std::string> expected_names = {"a", "b", "c", "d", "e"};
auto fields = ds->get_descriptor().get_descriptors();
std::size_t index = 0;
for (auto const& field : fields)
{
REQUIRE(field.get_name() == expected_names[index++]);
}
}
}
SECTION("GeoJSON invalid Point")
{
for (auto cache_features : {true, false})
{
mapnik::parameters params;
params["type"] = "geojson";
params["file"] = "./test/data/json/point-invalid.json";
params["cache_features"] = cache_features;
REQUIRE_THROWS(mapnik::datasource_cache::instance().create(params));
}
}
SECTION("GeoJSON Point")
{
for (auto cache_features : {true, false})
{
auto result = fetch_first_feature("./test/data/json/point.json", cache_features);
auto feature = result.second;
auto ds = result.first;
CHECK(ds->get_geometry_type() == mapnik::datasource_geometry_t::Point);
auto const& geometry = feature->get_geometry();
REQUIRE(mapnik::geometry::geometry_type(geometry) == mapnik::geometry::Point);
auto const& pt = mapnik::util::get<mapnik::geometry::point<double>>(geometry);
REQUIRE(pt.x == 100);
REQUIRE(pt.y == 0);
}
}
SECTION("GeoJSON LineString")
{
for (auto cache_features : {true, false})
{
auto result = fetch_first_feature("./test/data/json/linestring.json", cache_features);
auto feature = result.second;
auto ds = result.first;
CHECK(ds->get_geometry_type() == mapnik::datasource_geometry_t::LineString);
auto const& geometry = feature->get_geometry();
REQUIRE(mapnik::geometry::geometry_type(geometry) == mapnik::geometry::LineString);
auto const& line = mapnik::util::get<mapnik::geometry::line_string<double>>(geometry);
REQUIRE(line.size() == 2);
REQUIRE(mapnik::geometry::envelope(line) == mapnik::box2d<double>(100, 0, 101, 1));
}
}
SECTION("GeoJSON Polygon")
{
for (auto cache_features : {true, false})
{
auto result = fetch_first_feature("./test/data/json/polygon.json", cache_features);
auto feature = result.second;
auto ds = result.first;
CHECK(ds->get_geometry_type() == mapnik::datasource_geometry_t::Polygon);
auto const& geometry = feature->get_geometry();
REQUIRE(mapnik::geometry::geometry_type(geometry) == mapnik::geometry::Polygon);
auto const& poly = mapnik::util::get<mapnik::geometry::polygon<double>>(geometry);
REQUIRE(poly.size() == 2);
REQUIRE(poly[0].size() == 5);
REQUIRE(poly[1].size() == 5);
REQUIRE(mapnik::geometry::envelope(poly) == mapnik::box2d<double>(100, 0, 101, 1));
}
}
SECTION("GeoJSON MultiPoint")
{
for (auto cache_features : {true, false})
{
auto result = fetch_first_feature("./test/data/json/multipoint.json", cache_features);
auto feature = result.second;
auto ds = result.first;
CHECK(ds->get_geometry_type() == mapnik::datasource_geometry_t::Point);
auto const& geometry = feature->get_geometry();
REQUIRE(mapnik::geometry::geometry_type(geometry) == mapnik::geometry::MultiPoint);
auto const& multi_pt = mapnik::util::get<mapnik::geometry::multi_point<double>>(geometry);
REQUIRE(multi_pt.size() == 2);
REQUIRE(mapnik::geometry::envelope(multi_pt) == mapnik::box2d<double>(100, 0, 101, 1));
}
}
SECTION("GeoJSON MultiLineString")
{
for (auto cache_features : {true, false})
{
auto result = fetch_first_feature("./test/data/json/multilinestring.json", cache_features);
auto feature = result.second;
auto ds = result.first;
CHECK(ds->get_geometry_type() == mapnik::datasource_geometry_t::LineString);
auto const& geometry = feature->get_geometry();
REQUIRE(mapnik::geometry::geometry_type(geometry) == mapnik::geometry::MultiLineString);
auto const& multi_line = mapnik::util::get<mapnik::geometry::multi_line_string<double>>(geometry);
REQUIRE(multi_line.size() == 2);
REQUIRE(multi_line[0].size() == 2);
REQUIRE(multi_line[1].size() == 2);
REQUIRE(mapnik::geometry::envelope(multi_line) == mapnik::box2d<double>(100, 0, 103, 3));
}
}
SECTION("GeoJSON MultiPolygon")
{
for (auto cache_features : {true, false})
{
auto result = fetch_first_feature("./test/data/json/multipolygon.json", cache_features);
auto feature = result.second;
auto ds = result.first;
CHECK(ds->get_geometry_type() == mapnik::datasource_geometry_t::Polygon);
// test
auto const& geometry = feature->get_geometry();
REQUIRE(mapnik::geometry::geometry_type(geometry) == mapnik::geometry::MultiPolygon);
auto const& multi_poly = mapnik::util::get<mapnik::geometry::multi_polygon<double>>(geometry);
REQUIRE(multi_poly.size() == 2);
REQUIRE(multi_poly[0].size() == 1);
REQUIRE(multi_poly[1].size() == 2);
REQUIRE(mapnik::geometry::envelope(multi_poly) == mapnik::box2d<double>(100, 0, 103, 3));
}
}
SECTION("GeoJSON GeometryCollection")
{
std::string filename("./test/data/json/geometrycollection.json");
for (auto create_index : {true, false})
{
if (create_index)
{
int ret = create_disk_index(filename);
int ret_posix = (ret >> 8) & 0x000000ff;
INFO(ret);
INFO(ret_posix);
// index will not exist because this is not a featurecollection
CHECK(!mapnik::util::exists(filename + ".index"));
}
for (auto cache_features : {true, false})
{
auto result = fetch_first_feature(filename, cache_features);
auto feature = result.second;
auto ds = result.first;
CHECK(ds->get_geometry_type() == mapnik::datasource_geometry_t::Collection);
// test
auto const& geometry = feature->get_geometry();
REQUIRE(mapnik::geometry::geometry_type(geometry) == mapnik::geometry::GeometryCollection);
auto const& collection = mapnik::util::get<mapnik::geometry::geometry_collection<double>>(geometry);
REQUIRE(collection.size() == 2);
REQUIRE(mapnik::geometry::geometry_type(collection[0]) == mapnik::geometry::Point);
REQUIRE(mapnik::geometry::geometry_type(collection[1]) == mapnik::geometry::LineString);
REQUIRE(mapnik::geometry::envelope(collection) == mapnik::box2d<double>(100, 0, 102, 1));
}
}
}
SECTION("GeoJSON Feature")
{
// Create datasource
mapnik::parameters params;
params["type"] = "geojson";
std::string base("./test/data/json/");
std::string file("feature.json");
params["base"] = base;
params["file"] = file;
std::string filename = base + file;
for (auto create_index : {true, false})
{
if (create_index)
{
int ret = create_disk_index(filename);
int ret_posix = (ret >> 8) & 0x000000ff;
INFO(ret);
INFO(ret_posix);
// index will not exist because this is not a featurecollection
CHECK(!mapnik::util::exists(filename + ".index"));
}
for (auto cache_features : {true, false})
{
params["cache_features"] = cache_features;
auto ds = mapnik::datasource_cache::instance().create(params);
REQUIRE(bool(ds));
CHECK(ds->get_geometry_type() == mapnik::datasource_geometry_t::Point);
auto fields = ds->get_descriptor().get_descriptors();
mapnik::query query(ds->envelope());
for (auto const& field : fields)
{
query.add_property_name(field.get_name());
}
auto features = ds->features(query);
auto features2 = ds->features_at_point(ds->envelope().center(), 0);
auto feature = features->next();
auto feature2 = features2->next();
REQUIRE(feature != nullptr);
REQUIRE(feature2 != nullptr);
CHECK(feature->id() == 1);
CHECK(feature2->id() == 1);
mapnik::value val = feature->get("name");
CHECK(val.to_string() == "Dinagat Islands");
mapnik::value val2 = feature2->get("name");
CHECK(val2.to_string() == "Dinagat Islands");
REQUIRE(features->next() == nullptr);
REQUIRE(features2->next() == nullptr);
}
}
}
SECTION("GeoJSON ensure empty and null properties are handled")
{
mapnik::parameters params;
params["type"] = "geojson";
for (auto const& c_str :
{"./test/data/json/feature-null-properties.json", "./test/data/json/feature-empty-properties.json"})
{
std::string filename(c_str);
params["file"] = filename;
// cleanup in the case of a failed previous run
if (mapnik::util::exists(filename + ".index"))
{
mapnik::util::remove(filename + ".index");
}
for (auto create_index : {true, false})
{
if (create_index)
{
CHECK(!mapnik::util::exists(filename + ".index"));
int ret = create_disk_index(filename);
int ret_posix = (ret >> 8) & 0x000000ff;
INFO(ret);
INFO(ret_posix);
CHECK(!mapnik::util::exists(filename + ".index"));
}
for (auto cache_features : {true, false})
{
params["cache_features"] = cache_features;
auto ds = mapnik::datasource_cache::instance().create(params);
REQUIRE(bool(ds));
CHECK(ds->get_geometry_type() == mapnik::datasource_geometry_t::Point);
auto fields = ds->get_descriptor().get_descriptors();
CHECK(fields.size() == 0);
}
// cleanup
if (create_index && mapnik::util::exists(filename + ".index"))
{
mapnik::util::remove(filename + ".index");
}
}
}
}
SECTION("GeoJSON FeatureCollection")
{
std::string filename("./test/data/json/featurecollection.json");
// cleanup in the case of a failed previous run
if (mapnik::util::exists(filename + ".index"))
{
mapnik::util::remove(filename + ".index");
}
for (auto create_index : {true, false})
{
if (create_index)
{
int ret = create_disk_index(filename);
int ret_posix = (ret >> 8) & 0x000000ff;
INFO(ret);
INFO(ret_posix);
CHECK(mapnik::util::exists(filename + ".index"));
}
mapnik::parameters params;
params["type"] = "geojson";
params["file"] = filename;
for (auto cache_features : {true, false})
{
params["cache_features"] = cache_features;
auto ds = mapnik::datasource_cache::instance().create(params);
CHECK(ds->get_geometry_type() == mapnik::datasource_geometry_t::Collection);
auto fields = ds->get_descriptor().get_descriptors();
mapnik::query query(ds->envelope());
for (auto const& field : fields)
{
query.add_property_name(field.get_name());
}
auto features = ds->features(query);
auto features2 = ds->features_at_point(ds->envelope().center(), 10);
auto bounding_box = ds->envelope();
mapnik::box2d<double> bbox;
mapnik::value_integer count = 0;
while (true)
{
auto feature = features->next();
auto feature2 = features2->next();
if (!feature || !feature2)
break;
if (!bbox.valid())
bbox = feature->envelope();
else
bbox.expand_to_include(feature->envelope());
++count;
REQUIRE(feature->id() == count);
REQUIRE(feature2->id() == count);
}
REQUIRE(count == 3);
REQUIRE(bounding_box == bbox);
}
if (mapnik::util::exists(filename + ".index"))
{
CHECK(mapnik::util::remove(filename + ".index"));
}
}
}
SECTION("GeoJSON extra properties")
{
// Create datasource
mapnik::parameters params;
params["type"] = "geojson";
std::string filename("./test/data/json/feature_collection_extra_properties.json");
params["file"] = filename;
// cleanup in the case of a failed previous run
if (mapnik::util::exists(filename + ".index"))
{
mapnik::util::remove(filename + ".index");
}
for (auto create_index : {true, false})
{
if (create_index)
{
int ret = create_disk_index(filename);
int ret_posix = (ret >> 8) & 0x000000ff;
INFO(ret);
INFO(ret_posix);
CHECK(mapnik::util::exists(filename + ".index"));
}
for (auto cache_features : {true, false})
{
params["cache_features"] = cache_features;
auto ds = mapnik::datasource_cache::instance().create(params);
CHECK(ds->get_geometry_type() == mapnik::datasource_geometry_t::Point);
REQUIRE(bool(ds));
auto fields = ds->get_descriptor().get_descriptors();
mapnik::query query(ds->envelope());
for (auto const& field : fields)
{
query.add_property_name(field.get_name());
}
auto features = ds->features(query);
auto feature = features->next();
REQUIRE(feature != nullptr);
REQUIRE(feature->envelope() == mapnik::box2d<double>(123, 456, 123, 456));
}
// cleanup
if (create_index && mapnik::util::exists(filename + ".index"))
{
mapnik::util::remove(filename + ".index");
}
}
}
SECTION("GeoJSON \"type\":\"FeatureCollection\" in Feature properties (#4140)")
{
// Create datasource
mapnik::parameters params;
params["type"] = "geojson";
std::string filename("./test/data/json/feature_collection_issue_4140.json");
params["file"] = filename;
// cleanup in the case of a failed previous run
if (mapnik::util::exists(filename + ".index"))
{
mapnik::util::remove(filename + ".index");
}
for (auto create_index : {true, false})
{
if (create_index)
{
int ret = create_disk_index(filename);
int ret_posix = (ret >> 8) & 0x000000ff;
INFO(ret);
INFO(ret_posix);
CHECK(mapnik::util::exists(filename + ".index"));
}
for (auto cache_features : {true, false})
{
params["cache_features"] = cache_features;
auto ds = mapnik::datasource_cache::instance().create(params);
CHECK(ds->get_geometry_type() == mapnik::datasource_geometry_t::Point);
REQUIRE(bool(ds));
auto fields = ds->get_descriptor().get_descriptors();
mapnik::query query(ds->envelope());
for (auto const& field : fields)
{
query.add_property_name(field.get_name());
}
auto features = ds->features(query);
auto feature1 = features->next();
REQUIRE(feature1 != nullptr);
REQUIRE(feature1->envelope() == mapnik::box2d<double>(-122.0, 48.0, -122.0, 48.0));
auto feature2 = features->next();
REQUIRE(feature2 != nullptr);
REQUIRE(feature2->envelope() == mapnik::box2d<double>(0.0, 51.0, 0.0, 51.0));
REQUIRE(ds->envelope() == mapnik::box2d<double>(-122.0, 48.0, 0.0, 51.0));
}
// cleanup
if (create_index && mapnik::util::exists(filename + ".index"))
{
mapnik::util::remove(filename + ".index");
}
}
}
SECTION("GeoJSON ensure mapnik::datasource_cache::instance().create() throws on malformed input")
{
mapnik::parameters params;
params["type"] = "geojson";
for (auto const& c_str : {"./test/data/json/feature-malformed-1.geojson",
"./test/data/json/feature-malformed-2.geojson",
"./test/data/json/feature-malformed-3.geojson"})
{
std::string filename(c_str);
params["file"] = filename;
// cleanup in the case of a failed previous run
if (mapnik::util::exists(filename + ".index"))
{
mapnik::util::remove(filename + ".index");
}
for (auto create_index : {true, false})
{
if (create_index)
{
CHECK(!mapnik::util::exists(filename + ".index"));
int ret = create_disk_index(filename);
int ret_posix = (ret >> 8) & 0x000000ff;
INFO(ret);
INFO(ret_posix);
CHECK(!mapnik::util::exists(filename + ".index"));
}
for (auto cache_features : {true, false})
{
params["cache_features"] = cache_features;
CHECK_THROWS(mapnik::datasource_cache::instance().create(params));
}
// cleanup
if (create_index && mapnik::util::exists(filename + ".index"))
{
mapnik::util::remove(filename + ".index");
}
}
}
}
SECTION("GeoJSON ensure mapnik::featureset::next() throws on malformed input")
{
std::string filename{"./test/data/json/featurecollection-malformed.json"};
mapnik::parameters params;
params["type"] = "geojson";
params["file"] = filename;
// cleanup in the case of a failed previous run
if (mapnik::util::exists(filename + ".index"))
{
mapnik::util::remove(filename + ".index");
}
CHECK(!mapnik::util::exists(filename + ".index"));
int ret = create_disk_index(filename);
int ret_posix = (ret >> 8) & 0x000000ff;
INFO(ret);
INFO(ret_posix);
CHECK(mapnik::util::exists(filename + ".index"));
for (auto cache_features : {true, false})
{
params["cache_features"] = cache_features;
auto ds = mapnik::datasource_cache::instance().create(params);
auto fields = ds->get_descriptor().get_descriptors();
mapnik::query query(ds->envelope());
auto features = ds->features(query);
REQUIRE_THROWS(iterate_over_features(features));
}
// cleanup
if (mapnik::util::exists(filename + ".index"))
{
mapnik::util::remove(filename + ".index");
}
}
SECTION("GeoJSON ensure input fully consumed and throw exception otherwise")
{
mapnik::parameters params;
params["type"] = "geojson";
std::string filename("./test/data/json/points-malformed.geojson");
params["file"] = filename; // mismatched parentheses
// cleanup in the case of a failed previous run
if (mapnik::util::exists(filename + ".index"))
{
mapnik::util::remove(filename + ".index");
}
for (auto create_index : {true, false})
{
if (create_index)
{
CHECK(!mapnik::util::exists(filename + ".index"));
int ret = create_disk_index(filename);
int ret_posix = (ret >> 8) & 0x000000ff;
INFO(ret);
INFO(ret_posix);
CHECK(mapnik::util::exists(filename + ".index"));
}
for (auto cache_features : {true, false})
{
// unfortunately when using an index or not
// caching features we use the bbox grammar
// which is not strict (and would be a perf hit if it were strict).
// So this is one known hole where invalid data may silently parse okay
// refs https://github.com/mapnik/mapnik/issues/3125
if (!create_index && cache_features == true)
{
std::stringstream msg;
msg << "testcase: create index " << create_index << " cache_features " << cache_features;
params["cache_features"] = cache_features;
INFO(msg.str());
CHECK_THROWS(mapnik::datasource_cache::instance().create(params));
}
}
// cleanup
if (create_index && mapnik::util::exists(filename + ".index"))
{
mapnik::util::remove(filename + ".index");
}
}
}
SECTION("GeoJSON ensure original feature ordering is preserved")
{
mapnik::parameters params;
params["type"] = "geojson";
std::string filename("./test/data/json/ordered.json");
params["file"] = filename;
// cleanup in the case of a failed previous run
if (mapnik::util::exists(filename + ".index"))
{
mapnik::util::remove(filename + ".index");
}
for (auto create_index : {true, false})
{
if (create_index)
{
CHECK(!mapnik::util::exists(filename + ".index"));
int ret = create_disk_index(filename);
int ret_posix = (ret >> 8) & 0x000000ff;
INFO(ret);
INFO(ret_posix);
CHECK(mapnik::util::exists(filename + ".index"));
}
for (auto cache_features : {true, false})
{
params["cache_features"] = cache_features;
auto ds = mapnik::datasource_cache::instance().create(params);
REQUIRE(bool(ds));
auto fields = ds->get_descriptor().get_descriptors();
mapnik::query query(ds->envelope());
for (auto const& field : fields)
{
query.add_property_name(field.get_name());
}
auto features = ds->features(query);
auto feature = features->next();
mapnik::value_integer count = 0;
while (feature != nullptr)
{
// ids are in ascending order, starting from 1
mapnik::value val = feature->get("id");
REQUIRE(val.get<mapnik::value_integer>() == ++count);
feature = features->next();
}
}
// cleanup
if (create_index && mapnik::util::exists(filename + ".index"))
{
mapnik::util::remove(filename + ".index");
}
}
}
SECTION("GeoJSON descriptor returns all field names")
{
mapnik::parameters params;
params["type"] = "geojson";
std::string filename("./test/data/json/featurecollection-multipleprops.geojson");
params["file"] = filename;
// cleanup in the case of a failed previous run
if (mapnik::util::exists(filename + ".index"))
{
mapnik::util::remove(filename + ".index");
}
for (auto create_index : {true, false})
{
if (create_index)
{
CHECK(!mapnik::util::exists(filename + ".index"));
int ret = create_disk_index(filename);
int ret_posix = (ret >> 8) & 0x000000ff;
INFO(ret);
INFO(ret_posix);
CHECK(mapnik::util::exists(filename + ".index"));
}
for (auto cache_features : {true, false})
{
params["cache_features"] = cache_features;
auto ds = mapnik::datasource_cache::instance().create(params);
REQUIRE(bool(ds));
auto fields = ds->get_descriptor().get_descriptors();
std::initializer_list<std::string> names = {"one", "two"};
REQUIRE_FIELD_NAMES(fields, names);
}
// cleanup
if (create_index && mapnik::util::exists(filename + ".index"))
{
mapnik::util::remove(filename + ".index");
}
}
}
SECTION("GeoJSON properties are properly expressed")
{
mapnik::transcoder tr("utf8");
mapnik::parameters params;
params["type"] = "geojson";
std::string filename("./test/data/json/escaped.geojson");
params["file"] = filename;
// cleanup in the case of a failed previous run
if (mapnik::util::exists(filename + ".index"))
{
mapnik::util::remove(filename + ".index");
}
for (auto create_index : {true, false})
{
if (create_index)
{
CHECK(!mapnik::util::exists(filename + ".index"));
int ret = create_disk_index(filename);
int ret_posix = (ret >> 8) & 0x000000ff;
INFO(ret);
INFO(ret_posix);
CHECK(mapnik::util::exists(filename + ".index"));
}
for (auto cache_features : {true, false})
{
params["cache_features"] = cache_features;
auto ds = mapnik::datasource_cache::instance().create(params);
REQUIRE(bool(ds));
auto fields = ds->get_descriptor().get_descriptors();
std::initializer_list<std::string> names = {"NOM_FR",
"array",
"boolean",
"description",
"double",
"empty_array",
"empty_object",
"int",
"name",
"object",
"spaces"};
REQUIRE_FIELD_NAMES(fields, names);
auto fs = all_features(ds);
std::initializer_list<attr> attrs = {
attr{"name", tr.transcode("Test")},
attr{"NOM_FR", tr.transcode("Québec")},
attr{"boolean", mapnik::value_bool(true)},
attr{"description", tr.transcode("Test: \u005C")},
attr{"double", mapnik::value_double(1.1)},
attr{"int", mapnik::value_integer(1)},
attr{"object",
tr.transcode(
"{\"name\":\"waka\",\"spaces\":\"value with "
"spaces\",\"int\":1,\"double\":1.1,\"boolean\":false"
",\"NOM_FR\":\"Québec\",\"array\":[\"string\",\"value with spaces\",3,1.1,null,true"
",\"Québec\"],\"another_object\":{\"name\":\"nested object\"}}")},
attr{"spaces", tr.transcode("this has spaces")},
attr{"array",
tr.transcode("[\"string\",\"value with spaces\",3,1.1,null,true,"
"\"Québec\",{\"name\":\"object within an array\"},"
"[\"array\",\"within\",\"an\",\"array\"]]")},
attr{"empty_array", tr.transcode("[]")},
attr{"empty_object", tr.transcode("{}")},
};
auto feature = fs->next();
REQUIRE(bool(feature));
REQUIRE_ATTRIBUTES(feature, attrs);
}
// cleanup
if (create_index && mapnik::util::exists(filename + ".index"))
{
mapnik::util::remove(filename + ".index");
}
}
}
}
}