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#include "catch.hpp"
#include "utils.hpp"
#include <osmium/handler.hpp>
#include <osmium/handler/node_locations_for_ways.hpp>
#include <osmium/index/map/flex_mem.hpp>
#include <osmium/io/xml_input.hpp>
#include <osmium/memory/buffer.hpp>
#include <osmium/visitor.hpp>
TEST_CASE("apply with lambdas on reader") {
const osmium::io::File file{with_data_dir("t/relations/data.osm")};
osmium::io::Reader reader{file};
int count_n = 0;
int count_w = 0;
int count_r = 0;
int count_o = 0;
int count_a = 0;
osmium::apply(reader,
[&](const osmium::Node& node) {
count_n += node.version();
},
[&](const osmium::Way& way) {
if (way.id() == 20) {
++count_w;
}
},
[&](const osmium::Relation& relation) {
if (relation.id() > 30) {
++count_r;
}
},
[&](const osmium::OSMObject& object) {
if (object.id() % 10 == 0) {
++count_o;
}
},
[&](const osmium::Way& way) {
if (way.id() == 21) {
++count_w;
}
},
[&](const osmium::Area& /*area*/) {
++count_a;
}
);
REQUIRE(count_n == 5);
REQUIRE(count_w == 2);
REQUIRE(count_r == 2);
REQUIRE(count_o == 3);
REQUIRE(count_a == 0);
}
TEST_CASE("apply with lambda on buffer") {
const osmium::io::File file{with_data_dir("t/relations/data.osm")};
osmium::io::Reader reader{file};
const auto buffer = reader.read();
reader.close();
std::size_t members = 0;
osmium::apply(buffer, [&](const osmium::Relation& relation) {
members += relation.members().size();
});
REQUIRE(members == 5);
}
TEST_CASE("apply on non-const buffer can change data") {
const osmium::io::File file{with_data_dir("t/relations/data.osm")};
osmium::io::Reader reader{file};
auto buffer = reader.read();
reader.close();
int nodes = 0;
osmium::apply(buffer,
[&](osmium::Node& node) {
node.set_version(123);
},
[&](const osmium::Node& node) {
++nodes;
REQUIRE(node.version() == 123);
}
);
REQUIRE(nodes == 5);
}
TEST_CASE("apply with handler and lambda") {
using index_type = osmium::index::map::FlexMem<osmium::unsigned_object_id_type, osmium::Location>;
using location_handler_type = osmium::handler::NodeLocationsForWays<index_type>;
const osmium::io::File file{with_data_dir("t/relations/data.osm")};
osmium::io::Reader reader{file};
auto buffer = reader.read();
reader.close();
index_type index;
location_handler_type location_handler{index};
int64_t x = 0;
int64_t y = 0;
osmium::apply(buffer,
[&](const osmium::Way& way) {
REQUIRE_FALSE(way.nodes().front().location().valid());
},
location_handler,
[&](const osmium::Way& way) {
REQUIRE(way.nodes().front().location().valid());
for (const auto& wn : way.nodes()) {
x += wn.location().x();
y += wn.location().y();
}
}
);
REQUIRE(x == 44000000);
REQUIRE(y == 40000000);
}
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