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/*
* (C) Copyright 1996- ECMWF.
*
* This software is licensed under the terms of the Apache Licence Version 2.0
* which can be obtained at http://www.apache.org/licenses/LICENSE-2.0.
*
* In applying this licence, ECMWF does not waive the privileges and immunities
* granted to itr by virtue of its status as an intergovernmental organisation nor
* does itr submit to any jurisdiction.
*/
#include <memory>
#include <string>
#include <vector>
#include "eckit/geo/eckit_geo_config.h"
#include "eckit/testing/Test.h"
#include "eckit/geo/Grid.h"
namespace eckit::geo::test {
using eckit::geo::Grid;
CASE("gridSpec") {
struct test_type {
const std::string spec;
const std::vector<size_t> shape;
};
SECTION("regular lat/lon") {
std::unique_ptr<const Grid> grid1(GridFactory::make_from_string("grid: 2/1.0"));
EXPECT(grid1->spec_str() == R"({"grid":[2,1]})");
std::unique_ptr<const Grid> grid2(GridFactory::make_from_string("grid: .250/001e-1"));
EXPECT(grid2->spec_str() == R"({"grid":[0.25,0.1]})");
std::vector<test_type> tests{
{R"({"grid":[0.05,0.05]})", {3601, 7200}},
{R"({"grid":[0.1,0.1]})", {1801, 3600}},
{R"({"grid":[0.125,0.125]})", {1441, 2880}},
{R"({"grid":[0.15,0.15]})", {1201, 2400}},
{R"({"grid":[0.2,0.2]})", {901, 1800}},
{R"({"grid":[0.25,0.25]})", {721, 1440}},
{R"({"grid":[0.3,0.3]})", {601, 1200}},
{R"({"grid":[0.35,0.35]})", {515, 1029}},
{R"({"grid":[0.4,0.4]})", {451, 900}},
{R"({"grid":[0.5,0.5]})", {361, 720}},
{R"({"grid":[0.6,0.6]})", {301, 600}},
{R"({"grid":[0.7,0.7]})", {257, 515}},
{R"({"grid":[0.75,0.75]})", {241, 480}},
{R"({"grid":[0.8,0.8]})", {225, 450}},
{R"({"grid":[0.9,0.9]})", {201, 400}},
{R"({"grid":[1,1]})", {181, 360}},
{R"({"grid":[1.2,1.2]})", {151, 300}},
{R"({"grid":[1.25,1.25]})", {145, 288}},
{R"({"grid":[1.4,1.4]})", {129, 258}},
{R"({"grid":[1.5,1.5]})", {121, 240}},
{R"({"grid":[1.6,1.6]})", {113, 225}},
{R"({"grid":[1.8,1.8]})", {101, 200}},
{R"({"grid":[2,2]})", {91, 180}},
{R"({"grid":[2.5,2.5]})", {73, 144}},
{R"({"grid":[5,5]})", {37, 72}},
{R"({"grid":[10,10]})", {19, 36}},
{R"({"grid":[30,30]})", {7, 12}},
};
for (const auto& t : tests) {
std::unique_ptr<const Grid> grid(GridFactory::make_from_string(t.spec));
EXPECT(grid->spec_str() == t.spec);
EXPECT(grid->shape() == t.shape);
}
}
SECTION("HEALPix") {
std::vector<test_type> tests{
{R"({"grid":"H2","order":"nested"})", {48}}, {R"({"grid":"H2"})", {48}},
{R"({"grid":"H4","order":"nested"})", {192}}, {R"({"grid":"H4"})", {192}},
{R"({"grid":"H8","order":"nested"})", {768}}, {R"({"grid":"H8"})", {768}},
{R"({"grid":"H16","order":"nested"})", {3072}}, {R"({"grid":"H16"})", {3072}},
{R"({"grid":"H32","order":"nested"})", {12288}}, {R"({"grid":"H32"})", {12288}},
{R"({"grid":"H64","order":"nested"})", {49152}}, {R"({"grid":"H64"})", {49152}},
{R"({"grid":"H128","order":"nested"})", {196608}}, {R"({"grid":"H128"})", {196608}},
{R"({"grid":"H256","order":"nested"})", {786432}}, {R"({"grid":"H256"})", {786432}},
{R"({"grid":"H512","order":"nested"})", {3145728}}, {R"({"grid":"H512"})", {3145728}},
{R"({"grid":"H1024","order":"nested"})", {12582912}}, {R"({"grid":"H1024"})", {12582912}},
};
for (const auto& t : tests) {
std::unique_ptr<const Grid> grid(GridFactory::make_from_string(t.spec));
EXPECT(grid->spec_str() == t.spec);
EXPECT(grid->shape() == t.shape);
}
}
SECTION("Gaussian grids") {
std::vector<test_type> tests{
{R"({"grid":"N32"})", {6114}}, {R"({"grid":"N48"})", {13280}}, {R"({"grid":"N64"})", {23112}},
{R"({"grid":"N80"})", {35718}}, {R"({"grid":"N96"})", {50662}}, {R"({"grid":"N128"})", {88838}},
{R"({"grid":"N160"})", {138346}}, {R"({"grid":"N200"})", {213988}}, {R"({"grid":"N256"})", {348528}},
{R"({"grid":"N320"})", {542080}}, {R"({"grid":"N400"})", {843490}}, {R"({"grid":"N512"})", {1373624}},
{R"({"grid":"N640"})", {2140702}}, {R"({"grid":"N1024"})", {5447118}}, {R"({"grid":"N1280"})", {8505906}},
{R"({"grid":"O32"})", {5248}}, {R"({"grid":"O48"})", {10944}}, {R"({"grid":"O64"})", {18688}},
{R"({"grid":"O80"})", {28480}}, {R"({"grid":"O96"})", {40320}}, {R"({"grid":"O128"})", {70144}},
{R"({"grid":"O160"})", {108160}}, {R"({"grid":"O200"})", {167200}}, {R"({"grid":"O256"})", {271360}},
{R"({"grid":"O320"})", {421120}}, {R"({"grid":"O400"})", {654400}}, {R"({"grid":"O512"})", {1067008}},
{R"({"grid":"O640"})", {1661440}}, {R"({"grid":"O1024"})", {4231168}}, {R"({"grid":"O1280"})", {6599680}},
{R"({"grid":"O2560"})", {26306560}},
};
for (const auto& t : tests) {
std::unique_ptr<const Grid> grid(GridFactory::make_from_string(t.spec));
EXPECT(grid->spec_str() == t.spec);
EXPECT(grid->shape() == t.shape);
}
}
if (eckit_HAVE_ECKIT_CODEC) {
SECTION("gridSpec (FESOM)") {
std::vector<test_type> tests{
{R"({"grid":"pi_N"})", {3140}},
};
for (const auto& t : tests) {
std::unique_ptr<const Grid> grid(GridFactory::make_from_string(t.spec));
EXPECT(grid->spec_str() == t.spec);
EXPECT(grid->shape() == t.shape);
}
}
SECTION("gridSpec (ICON)") {
std::vector<test_type> tests{
{R"({"grid":"icon-grid-0055-r02b05-n"})", {2656}},
};
for (const auto& t : tests) {
std::unique_ptr<const Grid> grid(GridFactory::make_from_string(t.spec));
EXPECT(grid->spec_str() == t.spec);
EXPECT(grid->shape() == t.shape);
}
}
SECTION("gridSpec (ORCA)") {
std::vector<test_type> tests{
{R"({"grid":"ORCA2_T"})", {182, 149}}, // eORCA025_T [1740494] is too large as an integration test
};
for (const auto& t : tests) {
std::unique_ptr<const Grid> grid(GridFactory::make_from_string(t.spec));
EXPECT(grid->spec_str() == t.spec);
EXPECT(grid->shape() == t.shape);
}
}
}
}
} // namespace eckit::geo::test
int main(int argc, char** argv) {
return eckit::testing::run_tests(argc, argv);
}
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