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/**
* SPDX-License-Identifier: GPL-2.0-or-later
*
* This file is part of osm2pgsql (https://osm2pgsql.org/).
*
* Copyright (C) 2006-2023 by the osm2pgsql developer community.
* For a full list of authors see the git log.
*/
#include <catch.hpp>
#include "tile.hpp"
TEST_CASE("invalid tile", "[NoDB]")
{
tile_t const tile;
REQUIRE_FALSE(tile.valid());
}
TEST_CASE("tile access and comparison", "[NoDB]")
{
tile_t const a{3, 2, 1};
tile_t const b{3, 2, 1};
tile_t const c{3, 1, 2};
REQUIRE(a.valid());
REQUIRE(b.valid());
REQUIRE(c.valid());
REQUIRE(a.zoom() == 3);
REQUIRE(a.x() == 2);
REQUIRE(a.y() == 1);
REQUIRE(b.zoom() == 3);
REQUIRE(b.x() == 2);
REQUIRE(b.y() == 1);
REQUIRE(c.zoom() == 3);
REQUIRE(c.x() == 1);
REQUIRE(c.y() == 2);
REQUIRE(a == b);
REQUIRE_FALSE(a != b);
REQUIRE_FALSE(a == c);
REQUIRE(a != c);
REQUIRE_FALSE(a < b);
REQUIRE_FALSE(b < a);
REQUIRE_FALSE(a < c);
REQUIRE(c < a);
}
TEST_CASE("tile_t coordinates zoom=0", "[NoDB]")
{
tile_t const tile{0, 0, 0};
REQUIRE(tile.xmin() == Approx(-tile_t::half_earth_circumference));
REQUIRE(tile.ymin() == Approx(-tile_t::half_earth_circumference));
REQUIRE(tile.xmax() == Approx(tile_t::half_earth_circumference));
REQUIRE(tile.ymax() == Approx(tile_t::half_earth_circumference));
REQUIRE(tile.center().x() == Approx(0.0));
REQUIRE(tile.center().y() == Approx(0.0));
REQUIRE(tile.center() == geom::point_t{0.0, 0.0});
REQUIRE(tile.extent() == Approx(tile_t::earth_circumference));
geom::point_t const p{12345.6, 7891.0};
auto const tp = tile.to_tile_coords(p, 256);
auto const pp = tile.to_world_coords(tp, 256);
REQUIRE(p.x() == Approx(pp.x()));
REQUIRE(p.y() == Approx(pp.y()));
REQUIRE(tile.quadkey() == quadkey_t{0});
}
TEST_CASE("tile_t coordinates zoom=2", "[NoDB]")
{
tile_t const tile{2, 1, 2};
REQUIRE(tile.xmin() == Approx(-tile_t::half_earth_circumference / 2));
REQUIRE(tile.ymin() == Approx(-tile_t::half_earth_circumference / 2));
REQUIRE(tile.xmax() == Approx(0.0));
REQUIRE(tile.ymax() == Approx(0.0));
REQUIRE(tile.center().x() == Approx(-tile_t::half_earth_circumference / 4));
REQUIRE(tile.center().y() == Approx(-tile_t::half_earth_circumference / 4));
REQUIRE(tile.extent() == Approx(tile_t::half_earth_circumference / 2));
geom::point_t const p{-tile_t::half_earth_circumference / 4,
-tile_t::half_earth_circumference / 8};
auto const tp = tile.to_tile_coords(p, 4096);
REQUIRE(tp.x() == Approx(2048));
REQUIRE(tp.y() == Approx(2048 + 1024));
auto const pp = tile.to_world_coords(tp, 4096);
REQUIRE(p.x() == Approx(pp.x()));
REQUIRE(p.y() == Approx(pp.y()));
auto const q = tile.quadkey();
REQUIRE(tile == tile_t::from_quadkey(q, tile.zoom()));
}
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