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#include "gtest/gtest.h"
#include <mbgl/map/map.hpp>
#include <mbgl/util/image.hpp>
#include <mbgl/util/io.hpp>
#include <mbgl/util/std.hpp>
#include <rapidjson/document.h>
#include <rapidjson/writer.h>
#include <rapidjson/stringbuffer.h>
#include <mbgl/platform/default/headless_view.hpp>
#include <mbgl/platform/default/headless_display.hpp>
#include "./fixtures/fixture_log.hpp"
#include <dirent.h>
const std::string base_directory = []{
std::string fn = __FILE__;
fn.erase(fn.find_last_of("/"));
fn.erase(fn.find_last_of("/"));
return fn + "/node_modules/mapbox-gl-test-suite/";
}();
auto display_ = std::make_shared<mbgl::HeadlessDisplay>();
class HeadlessTest : public ::testing::TestWithParam<std::string> {};
TEST_P(HeadlessTest, render) {
using namespace mbgl;
const std::string &base = GetParam();
std::string style = util::read_file(base_directory + "tests/" + base + "/style.json");
std::string info = util::read_file(base_directory + "tests/" + base + "/info.json");
// Parse style.
rapidjson::Document styleDoc;
styleDoc.Parse<0>((const char *const)style.c_str());
ASSERT_FALSE(styleDoc.HasParseError());
ASSERT_TRUE(styleDoc.IsObject());
rapidjson::StringBuffer buffer;
rapidjson::Writer<rapidjson::StringBuffer> writer(buffer);
styleDoc.Accept(writer);
style = buffer.GetString();
// Parse settings.
rapidjson::Document infoDoc;
infoDoc.Parse<0>((const char *const)info.c_str());
ASSERT_FALSE(infoDoc.HasParseError());
ASSERT_TRUE(infoDoc.IsObject());
Log::Set<FixtureLogBackend>();
for (auto it = infoDoc.MemberBegin(), end = infoDoc.MemberEnd(); it != end; it++) {
const std::string name { it->name.GetString(), it->name.GetStringLength() };
const rapidjson::Value &value = it->value;
ASSERT_TRUE(value.IsObject());
if (value.HasMember("center")) ASSERT_TRUE(value["center"].IsArray());
const std::string actual_image = base_directory + "tests/" + base + "/" + name + "/actual.png";
const double zoom = value.HasMember("zoom") ? value["zoom"].GetDouble() : 0;
const double bearing = value.HasMember("bearing") ? value["bearing"].GetDouble() : 0;
const double latitude = value.HasMember("center") ? value["center"][rapidjson::SizeType(0)].GetDouble() : 0;
const double longitude = value.HasMember("center") ? value["center"][rapidjson::SizeType(1)].GetDouble() : 0;
const unsigned int width = value.HasMember("width") ? value["width"].GetUint() : 512;
const unsigned int height = value.HasMember("height") ? value["height"].GetUint() : 512;
const unsigned int pixelRatio = value.HasMember("pixelRatio") ? value["pixelRatio"].GetUint() : 1;
std::vector<std::string> classes;
if (value.HasMember("classes")) {
const rapidjson::Value &js_classes = value["classes"];
ASSERT_TRUE(js_classes.IsArray());
for (rapidjson::SizeType i = 0; i < js_classes.Size(); i++) {
const rapidjson::Value &js_class = js_classes[i];
ASSERT_TRUE(js_class.IsString());
classes.push_back({ js_class.GetString(), js_class.GetStringLength() });
}
}
HeadlessView view(display_);
Map map(view);
map.setStyleJSON(style, base_directory);
map.setAppliedClasses(classes);
view.resize(width, height, pixelRatio);
map.resize(width, height, pixelRatio);
map.setLonLatZoom(longitude, latitude, zoom);
map.setBearing(bearing);
// Run the loop. It will terminate when we don't have any further listeners.
map.run();
const unsigned int w = width * pixelRatio;
const unsigned int h = height * pixelRatio;
const std::string image = util::compress_png(w, h, view.readPixels().get(), true);
util::write_file(actual_image, image);
}
}
INSTANTIATE_TEST_CASE_P(Headless, HeadlessTest, ::testing::ValuesIn([] {
std::vector<std::string> names;
DIR *dir = opendir((base_directory + "tests").c_str());
if (dir == nullptr) {
return names;
}
for (dirent *dp = nullptr; (dp = readdir(dir)) != nullptr;) {
const std::string name = dp->d_name;
if (name != "." && name != ".." && name != "index.html") {
names.push_back(name);
}
}
closedir(dir);
return names;
}()));
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