159 lines
3.4 KiB
C++
159 lines
3.4 KiB
C++
#include "catch.hpp"
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#include "test_tile_data.hpp"
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#include <osmium/geom/tile.hpp>
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#include <cmath>
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#include <sstream>
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TEST_CASE("Helper functions") {
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REQUIRE(osmium::geom::num_tiles_in_zoom(0) == 1);
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REQUIRE(osmium::geom::num_tiles_in_zoom(1) == 2);
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REQUIRE(osmium::geom::num_tiles_in_zoom(12) == 4096);
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REQUIRE(osmium::geom::tile_extent_in_zoom(1) == osmium::geom::detail::max_coordinate_epsg3857);
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}
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TEST_CASE("Tile from x0.0 y0.0 at zoom 0") {
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const osmium::Location l{0.0, 0.0};
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const osmium::geom::Tile t{0, l};
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REQUIRE(t.x == 0);
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REQUIRE(t.y == 0);
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REQUIRE(t.z == 0);
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REQUIRE(t.valid());
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}
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TEST_CASE("Tile from x180.0 y90.0 at zoom 0") {
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const osmium::Location l{180.0, 90.0};
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const osmium::geom::Tile t{0, l};
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REQUIRE(t.x == 0);
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REQUIRE(t.y == 0);
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REQUIRE(t.z == 0);
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REQUIRE(t.valid());
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}
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TEST_CASE("Tile from x180.0 y90.0 at zoom 4") {
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const osmium::Location l{180.0, 90.0};
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const osmium::geom::Tile t{4, l};
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REQUIRE(t.x == (1U << 4U) - 1);
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REQUIRE(t.y == 0);
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REQUIRE(t.z == 4);
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REQUIRE(t.valid());
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}
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TEST_CASE("Tile from x0.0 y0.0 at zoom 4") {
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const osmium::Location l{0.0, 0.0};
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const osmium::geom::Tile t{4, l};
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const auto n = 1U << (4U - 1U);
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REQUIRE(t.x == n);
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REQUIRE(t.y == n);
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REQUIRE(t.z == 4);
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REQUIRE(t.valid());
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}
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TEST_CASE("Tile from max values at zoom 4") {
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const osmium::geom::Tile t{4U, 15U, 15U};
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REQUIRE(t.valid());
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}
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TEST_CASE("Tile from max values at zoom 30") {
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const osmium::geom::Tile t{30U, (1U << 30U) - 1, (1U << 30U) - 1};
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REQUIRE(t.valid());
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}
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TEST_CASE("Tile from coordinates") {
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const osmium::geom::Coordinates c{9.99312, 53.55078};
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const osmium::geom::Tile t{12, osmium::geom::lonlat_to_mercator(c)};
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REQUIRE(t.valid());
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REQUIRE(t.x == 2161);
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REQUIRE(t.y == 1323);
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}
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TEST_CASE("Tile equality") {
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const osmium::geom::Tile a{4, 3, 4};
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const osmium::geom::Tile b{4, 3, 4};
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const osmium::geom::Tile c{4, 4, 3};
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REQUIRE(a == b);
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REQUIRE(a != c);
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REQUIRE(b != c);
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}
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TEST_CASE("Tile order") {
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const osmium::geom::Tile a{4, 3, 4};
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const osmium::geom::Tile b{6, 3, 4};
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const osmium::geom::Tile c{6, 4, 3};
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const osmium::geom::Tile d{6, 4, 2};
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REQUIRE(a < b);
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REQUIRE(a < c);
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REQUIRE(b < c);
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REQUIRE(d < c);
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}
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TEST_CASE("Check a random list of tiles") {
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std::istringstream input_data{s};
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int n = 0;
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while (input_data) {
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double lon = NAN;
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double lat = NAN;
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uint32_t x = 0;
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uint32_t y = 0;
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uint32_t zoom = 0;
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input_data >> lon;
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input_data >> lat;
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input_data >> x;
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input_data >> y;
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input_data >> zoom;
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if (std::isnan(lon)) {
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break;
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}
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const osmium::Location l{lon, lat};
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const osmium::geom::Tile t{zoom, l};
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REQUIRE(t.x == x);
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REQUIRE(t.y == y);
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++n;
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}
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REQUIRE(n == 472);
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}
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TEST_CASE("Invalid tiles") {
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osmium::geom::Tile tile{0, 0, 0};
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REQUIRE(tile.valid());
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SECTION("Zoom level out of bounds") {
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tile.z = 100;
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}
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SECTION("x out of bounds") {
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tile.x = 1;
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}
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SECTION("y out of bounds") {
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tile.y = 1;
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}
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SECTION("x out of bounds") {
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tile.z = 4;
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tile.x = 100;
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}
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SECTION("y out of bounds") {
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tile.z = 4;
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tile.y = 100;
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}
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REQUIRE_FALSE(tile.valid());
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}
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