mapnik/test/unit/core/exceptions_test.cpp

#include "catch.hpp"

#include <iostream>
#include <mapnik/projection.hpp>
#include <mapnik/unicode.hpp>
#include <mapnik/map.hpp>
#include <mapnik/save_map.hpp>
#include <mapnik/feature.hpp>
#include <mapnik/memory_datasource.hpp>
#include <mapnik/feature_type_style.hpp>
#include <mapnik/feature_factory.hpp>
#include <mapnik/rule.hpp>
#include <mapnik/expression.hpp>
#include <mapnik/layer.hpp>
#include <mapnik/agg_renderer.hpp>
#include <mapnik/config_error.hpp>
#include <mapnik/datasource_cache.hpp>
#include <mapnik/params.hpp>
#include <mapnik/util/fs.hpp>
#include <vector>
#include <algorithm>

TEST_CASE("exceptions") {

SECTION("handling") {
    try {
        mapnik::projection srs("foo");
        // to avoid unused variable warning
        srs.params();
        REQUIRE(false);
    } catch (...) {
        REQUIRE(true);
    }

    // https://github.com/mapnik/mapnik/issues/2170
    try {
        mapnik::projection srs("+proj=longlat foo",true);
        REQUIRE(srs.is_geographic());
        REQUIRE(true);
        srs.init_proj4();
        // oddly init_proj4 does not throw with old proj/ubuntu precise
        //REQUIRE(false);
    } catch (...) {
        REQUIRE(true);
    }

    try {
        mapnik::transcoder tr("bogus encoding");
        REQUIRE(false);
    } catch (...) {
        REQUIRE(true);
    }

    mapnik::Map map(256,256);
    mapnik::rule r;
    r.set_filter(mapnik::parse_expression("[foo]='bar'"));
    r.append(mapnik::markers_symbolizer());
    mapnik::feature_type_style style;
    style.add_rule(std::move(r));
    map.insert_style("style", std::move(style));

    std::string csv_plugin("./plugins/input/csv.input");
    if (mapnik::util::exists(csv_plugin)) {
        try {
            mapnik::parameters p;
            p["type"]="csv";
            p["inline"]="x,y\n0,0";
            mapnik::datasource_ptr ds = mapnik::datasource_cache::instance().create(p);
            mapnik::layer l("layer");
            l.set_datasource(ds);
            l.add_style("style");
            mapnik::Map m = map;
            m.add_layer(l);
            m.zoom_all();
            mapnik::image_rgba8 im(m.width(),m.height());
            mapnik::agg_renderer<mapnik::image_rgba8> ren(m,im);
            //std::clog << mapnik::save_map_to_string(m) << "\n";
            REQUIRE(true);
            // should throw here with "CSV Plugin: no attribute 'foo'. Valid attributes are: x,y."
            ren.apply();
            REQUIRE(false);
        } catch (...) {
            REQUIRE(true);
        }
    }

    std::string shape_plugin("./plugins/input/shape.input");
    if (mapnik::util::exists(shape_plugin)) {
        try {
            mapnik::parameters p2;
            p2["type"]="shape";
            p2["file"]="foo";
            mapnik::datasource_cache::instance().create(p2);
            REQUIRE(false);
        } catch (...) {
            REQUIRE(true);
        }
    }

}
}