6bee8866de
git-subtree-dir: third_party/vtzero git-subtree-split: 2b43c8f5c7cc461a874a657673dfc15f8fb21d1d
140 lines
3.4 KiB
C++
140 lines
3.4 KiB
C++
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#include <test.hpp>
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#include <vtzero/vector_tile.hpp>
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#include <string>
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#include <vector>
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TEST_CASE("open a vector tile with string") {
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const auto data = load_test_tile();
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REQUIRE(vtzero::is_vector_tile(data));
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vtzero::vector_tile tile{data};
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REQUIRE_FALSE(tile.empty());
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REQUIRE(tile.count_layers() == 12);
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}
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TEST_CASE("open a vector tile with data_view") {
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const auto data = load_test_tile();
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const vtzero::data_view dv{data};
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vtzero::vector_tile tile{dv};
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REQUIRE_FALSE(tile.empty());
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REQUIRE(tile.count_layers() == 12);
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}
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TEST_CASE("open a vector tile with pointer and size") {
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const auto data = load_test_tile();
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vtzero::vector_tile tile{data.data(), data.size()};
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REQUIRE_FALSE(tile.empty());
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REQUIRE(tile.count_layers() == 12);
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}
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TEST_CASE("get layer by index") {
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const auto data = load_test_tile();
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vtzero::vector_tile tile{data};
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auto layer = tile.get_layer(0);
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REQUIRE(layer);
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REQUIRE(layer.name() == "landuse");
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layer = tile.get_layer(1);
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REQUIRE(layer);
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REQUIRE(layer.name() == "waterway");
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layer = tile.get_layer(11);
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REQUIRE(layer);
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REQUIRE(layer.name() == "waterway_label");
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layer = tile.get_layer(12);
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REQUIRE_FALSE(layer);
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}
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TEST_CASE("get layer by name") {
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const auto data = load_test_tile();
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vtzero::vector_tile tile{data};
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auto layer = tile.get_layer_by_name("landuse");
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REQUIRE(layer);
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REQUIRE(layer.name() == "landuse");
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layer = tile.get_layer_by_name(std::string{"road"});
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REQUIRE(layer);
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REQUIRE(layer.name() == "road");
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const vtzero::data_view name{"poi_label"};
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layer = tile.get_layer_by_name(name);
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REQUIRE(layer);
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REQUIRE(layer.name() == "poi_label");
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layer = tile.get_layer_by_name("unknown");
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REQUIRE_FALSE(layer);
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}
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TEST_CASE("iterate over layers") {
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const auto data = load_test_tile();
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vtzero::vector_tile tile{data};
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std::vector<std::string> names;
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SECTION("external iterator") {
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while (auto layer = tile.next_layer()) {
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names.emplace_back(layer.name());
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}
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}
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SECTION("internal iterator") {
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const bool done = tile.for_each_layer([&names](const vtzero::layer& layer) {
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names.emplace_back(layer.name());
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return true;
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});
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REQUIRE(done);
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}
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REQUIRE(names.size() == 12);
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static std::vector<std::string> expected = {
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"landuse", "waterway", "water", "barrier_line", "building", "road",
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"bridge", "place_label", "water_label", "poi_label", "road_label",
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"waterway_label"
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};
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REQUIRE(names == expected);
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tile.reset_layer();
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int num = 0;
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while (auto layer = tile.next_layer()) {
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++num;
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}
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REQUIRE(num == 12);
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}
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TEST_CASE("iterate over some of the layers") {
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const auto data = load_test_tile();
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vtzero::vector_tile tile{data};
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int num_layers = 0;
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SECTION("external iterator") {
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while (auto layer = tile.next_layer()) {
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++num_layers;
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if (layer.name() == "water") {
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break;
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}
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}
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}
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SECTION("internal iterator") {
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const bool done = tile.for_each_layer([&num_layers](const vtzero::layer& layer) noexcept {
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++num_layers;
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return layer.name() != "water";
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});
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REQUIRE_FALSE(done);
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}
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REQUIRE(num_layers == 3);
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}
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