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#include "gtest/gtest.h"
#include <llmr/map/map.hpp>
#include <llmr/util/image.hpp>
#include <llmr/util/io.hpp>
#include <llmr/util/std.hpp>
#include <rapidjson/document.h>
#include "../common/headless_view.hpp"
#include <dirent.h>
const std::string base_directory = []{
std::string fn = __FILE__;
fn.erase(fn.find_last_of("/"));
return fn + "/fixtures/styles";
}();
class HeadlessTest : public ::testing::TestWithParam<std::string> {};
TEST_P(HeadlessTest, render) {
const std::string &base = GetParam();
const std::string style = llmr::util::read_file(base_directory + "/" + base + ".style.json");
const std::string info = llmr::util::read_file(base_directory + "/" + base + ".info.json");
const std::string expected_image = base_directory + "/" + base + ".expected.png";
const std::string actual_image = base_directory + "/" + base + ".actual.png";
// Parse settings.
rapidjson::Document doc;
doc.Parse<0>((const char *const)info.c_str());
ASSERT_EQ(false, doc.HasParseError());
const double zoom = doc.HasMember("zoom") ? doc["zoom"].GetDouble() : 0;
const double angle = doc.HasMember("angle") ? doc["angle"].GetDouble() : 0;
const double longitude = doc.HasMember("longitude") ? doc["longitude"].GetDouble() : 0;
const double latitude = doc.HasMember("latitude") ? doc["latitude"].GetDouble() : 0;
const unsigned int width = doc.HasMember("width") ? doc["width"].GetUint() : 0;
const unsigned int height = doc.HasMember("height") ? doc["height"].GetUint() : 0;
// Setup OpenGL
llmr::HeadlessView view;
llmr::Map map(view);
view.resize(width, height);
map.resize(width, height);
map.setStyleJSON(style);
map.setLonLatZoom(longitude, latitude, zoom);
map.setAngle(angle);
map.setDebug(false);
// Run the loop. It will terminate when we don't have any further listeners.
map.run();
const std::unique_ptr<uint32_t[]> pixels(new uint32_t[width * height]);
glReadPixels(0, 0, width, height, GL_RGBA, GL_UNSIGNED_BYTE, pixels.get());
const std::string image = llmr::util::compress_png(width, height, pixels.get(), true);
llmr::util::write_file(actual_image, image);
}
INSTANTIATE_TEST_CASE_P(Headless, HeadlessTest,
::testing::ValuesIn([]{
std::vector<std::string> names;
const std::string ending = ".info.json";
DIR *dir = opendir(base_directory.c_str());
if (dir == nullptr) return names;
for (dirent *dp = nullptr; (dp = readdir(dir)) != nullptr;) {
const std::string name = dp->d_name;
if (name.length() >= ending.length() && name.compare(name.length() - ending.length(), ending.length(), ending) == 0) {
names.push_back(name.substr(0, name.length() - ending.length()));
}
}
closedir(dir);
return names;
}()));
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