test style parser

Author: stmitt

CMakeLists.txt

@@ -10,13 +10,15 @@ if(APPLE)
   file(GLOB_RECURSE mapscore_SRC
           "shared/public/*.cpp"
           "shared/src/*.cpp"
+          "external/djinni/support-lib/cpp/*.cpp"
   )
 else()
   # Include Android-specific files only if not on Apple devices
   file(GLOB_RECURSE mapscore_SRC
           "shared/public/*.cpp"
           "shared/src/*.cpp"
           "android/src/main/cpp/graphics/*.cpp"
+          "external/djinni/support-lib/cpp/*.cpp"
   )
 endif()
 
@@ -97,6 +99,8 @@ else()
   target_compile_definitions(mapscore PRIVATE OPENMOBILEMAPS_GL=1)
 endif()
 
+target_compile_definitions(mapscore PUBLIC DATAREF_CPP=1)
+
 target_compile_features(mapscore PRIVATE cxx_std_20)
 target_compile_options(mapscore PRIVATE -Werror -Wno-deprecated -Wno-reorder -fPIC) # fPIC so we can "embed" into shared mapscore_jni
 target_link_libraries(mapscore ${OPENGL_LIBRARIES})

external/djinni

@@ -14,7 +14,9 @@ add_executable(tests
   "TestTileSource.cpp"
   "TestGeometryHandler.cpp"
   "TestValueEvaluate.cpp"
+  "TestStyleParser.cpp"
   "helper/TestData.cpp"
+  "helper/TestLocalDataProvider.h"
 )
 # Use mapscore _private_ include to allow testing functionality declared in internal headers.
 target_include_directories(tests PRIVATE

shared/test/CMakeLists.txt

@@ -0,0 +1,78 @@
+#include "DataRef.hpp"
+#include "GeoJsonTypes.h"
+#include "Tiled2dMapVectorLayerParserHelper.h"
+#include "VectorLayerDescription.h"
+#include "geojsonvt.hpp"
+#include "helper/TestData.h"
+#include "helper/TestLocalDataProvider.h"
+#include "helper/TestScheduler.h"
+
+#include <catch2/benchmark/catch_benchmark.hpp>
+#include <catch2/catch_test_macros.hpp>
+#include <catch2/generators/catch_generators.hpp>
+#include <random>
+
+class TestGeoJSONTileDelegate : public GeoJSONTileDelegate, public ActorObject {
+public:
+    bool didLoadCalled = false;
+    bool failedToLoadCalled = false;
+
+    void didLoad(uint8_t maxZoom) override {
+        didLoadCalled = true;
+    }
+
+    void failedToLoad() override {
+        failedToLoadCalled = true;
+    }
+};
+
+
+TEST_CASE("TestStyleParser", "[GeoJson inline]") {
+    auto jsonString = TestData::readFileToString("style/geojson_style_inline.json");
+    auto result = Tiled2dMapVectorLayerParserHelper::parseStyleJsonFromString("test", jsonString, nullptr, {}, {});
+    REQUIRE(result.mapDescription != nullptr);
+    REQUIRE(!result.mapDescription->geoJsonSources.empty());
+
+    std::shared_ptr<GeoJSONVTInterface> geojsonSource = result.mapDescription->geoJsonSources.begin()->second;
+    REQUIRE(geojsonSource->getMinZoom() == 0);
+    REQUIRE(geojsonSource->getMaxZoom() == 0);
+
+    REQUIRE(result.mapDescription->layers[0]->sourceMinZoom == 0);
+    REQUIRE(result.mapDescription->layers[0]->sourceMaxZoom == 0);
+    REQUIRE_NOTHROW(geojsonSource->getTile(0,0,0));
+    REQUIRE_THROWS(geojsonSource->getTile(6,33,22));
+}
+
+TEST_CASE("TestStyleParser", "[GeoJson local provider]") {
+    auto jsonString = TestData::readFileToString("style/geojson_style_provider.json");
+    auto provider = std::make_shared<TestLocalDataProvider>(std::unordered_map<std::string, std::string>{
+        {"wsource", "geojson.geojson"}
+    });
+    auto result = Tiled2dMapVectorLayerParserHelper::parseStyleJsonFromString("test", jsonString, provider, {}, {});
+    REQUIRE(result.mapDescription != nullptr);
+    REQUIRE(!result.mapDescription->geoJsonSources.empty());
+
+    std::shared_ptr<GeoJSONVTInterface> geojsonSource = result.mapDescription->geoJsonSources.begin()->second;
+
+    auto scheduler = std::make_shared<TestScheduler>();
+    auto delegate = Actor<TestGeoJSONTileDelegate>(std::make_shared<Mailbox>(scheduler), std::make_shared<TestGeoJSONTileDelegate>());
+
+    geojsonSource->setDelegate(delegate.weakActor<GeoJSONTileDelegate>());
+
+    REQUIRE(!delegate.unsafe()->didLoadCalled);
+
+    auto promise = std::make_shared<::djinni::Promise<std::shared_ptr<DataLoaderResult>>>();
+    geojsonSource->waitIfNotLoaded(promise);
+    promise->getFuture().wait();
+
+    scheduler->drain();
+
+    REQUIRE(delegate.unsafe()->didLoadCalled);
+
+    REQUIRE(geojsonSource->getMinZoom() == 0);
+    REQUIRE(geojsonSource->getMaxZoom() == 25);
+
+    const auto &tile = geojsonSource->getTile(6,33,22);
+
+    REQUIRE(!tile.getFeatures().empty());
+}

shared/test/TestStyleParser.cpp

@@ -0,0 +1,31 @@
+{
+  "version": 8,
+  "name": "s",
+  "sources": {
+    "wsource": {
+      "type": "geojson",
+      "minzoom": 0,
+      "maxzoom": 25,
+      "data": {
+        "type": "Point",
+        "coordinates": [102.0, 0.5]
+      }
+    }
+  },
+  "sprite": "localdata-sprites",
+  "layers": [
+    {
+      "id": "w",
+      "type": "fill",
+      "metadata": {
+        "blend-mode": "multiply"
+      },
+      "minzoom": 0,
+      "maxzoom": 6,
+      "source": "wsource",
+      "paint": {
+        "fill-color": "rgb(202, 154, 255)"
+      }
+    }
+  ]
+}

shared/test/data/style/geojson.geojson

@@ -0,0 +1,28 @@
+{
+  "version": 8,
+  "name": "s",
+  "sources": {
+    "wsource": {
+      "type": "geojson",
+      "minzoom": 0,
+      "maxzoom": 25,
+      "data": "localdata-url"
+    }
+  },
+  "sprite": "localdata-sprites",
+  "layers": [
+    {
+      "id": "w",
+      "type": "fill",
+      "metadata": {
+        "blend-mode": "multiply"
+      },
+      "minzoom": 0,
+      "maxzoom": 6,
+      "source": "wsource",
+      "paint": {
+        "fill-color": "rgb(202, 154, 255)"
+      }
+    }
+  ]
+}

shared/test/data/style/geojson_style_inline.json

@@ -8,6 +8,7 @@
  *  SPDX-License-Identifier: MPL-2.0
  */
 
+#pragma once
 #include <vector>
 #include <string>
 

shared/test/data/style/geojson_style_provider.json

@@ -0,0 +1,41 @@
+#pragma once
+#include "TestData.h"
+#include "Tiled2dMapVectorLayerLocalDataProviderInterface.h"
+
+#include <string>
+#include <utility>
+
+class TestLocalDataProvider: public Tiled2dMapVectorLayerLocalDataProviderInterface {
+public:
+    explicit TestLocalDataProvider(const std::unordered_map<std::string, std::string> &&geojsonMapping)
+        : geojsonMapping(geojsonMapping) {}
+
+    djinni::Future<DataLoaderResult> loadGeojson(const std::string &sourceName, const std::string &url) override {
+        auto promise = ::djinni::Promise<DataLoaderResult>();
+        auto it = geojsonMapping.find(sourceName);
+        if (it != geojsonMapping.end()) {
+            auto data = TestData::readFileToBuffer(("style/" + it->second).c_str());
+            std::vector<uint8_t> uint8Vec(data.begin(), data.end());
+            promise.setValue(DataLoaderResult(::djinni::DataRef(uint8Vec), std::nullopt, LoaderStatus::OK, std::nullopt));
+        } else {
+            throw std::runtime_error("Failed to load geojson from file");
+        }
+        return promise.getFuture();
+    }
+    std::optional<std::string> getStyleJson() override {
+        return std::nullopt;
+    }
+    djinni::Future<TextureLoaderResult> loadSpriteAsync(int32_t scale) override {
+        auto promise = ::djinni::Promise<TextureLoaderResult>();
+        promise.setValue(TextureLoaderResult(nullptr, std::nullopt, LoaderStatus::ERROR_404, std::nullopt));
+        return promise.getFuture();
+    }
+    djinni::Future<DataLoaderResult> loadSpriteJsonAsync(int32_t scale) override {
+        auto promise = ::djinni::Promise<DataLoaderResult>();
+        promise.setValue(DataLoaderResult(std::nullopt, std::nullopt, LoaderStatus::ERROR_404, std::nullopt));
+        return promise.getFuture();
+    }
+
+private:
+    std::unordered_map<std::string, std::string> geojsonMapping;
+};