[render-test] Add support for feature state APIs

render-test/runner.cpp

@@ -15,6 +15,7 @@
 #include <mbgl/util/run_loop.hpp>
 #include <mbgl/util/string.hpp>
 #include <mbgl/util/timer.hpp>
+#include <mbgl/renderer/renderer.hpp>
 
 #include <mapbox/pixelmatch.hpp>
 
@@ -197,6 +198,9 @@ bool TestRunner::runOperations(const std::string& key, TestMetadata& metadata) {
     static const std::string memoryProbeOp("probeMemory");
     static const std::string memoryProbeStartOp("probeMemoryStart");
     static const std::string memoryProbeEndOp("probeMemoryEnd");
+    static const std::string setFeatureStateOp("setFeatureState");
+    static const std::string getFeatureStateOp("getFeatureState");
+    static const std::string removeFeatureStateOp("removeFeatureState");
 
     // wait
     if (operationArray[0].GetString() == waitOp) {
@@ -453,6 +457,140 @@ bool TestRunner::runOperations(const std::string& key, TestMetadata& metadata) {
         assert(AllocationIndex::isActive());
         AllocationIndex::setActive(false);
         AllocationIndex::reset();
+
+    // setFeatureState
+    } else if (operationArray[0].GetString() == setFeatureStateOp) {
+        assert(operationArray.Size() >= 3u);
+        assert(operationArray[1].IsObject());
+        assert(operationArray[2].IsObject());
+
+        using namespace mbgl;
+        using namespace mbgl::style::conversion;
+
+        std::string sourceID;
+        mbgl::optional<std::string> sourceLayer;
+        std::string featureID;
+        std::string stateKey;
+        Value stateValue;
+        bool valueParsed = false;
+        FeatureState parsedState;
+
+        const auto& featureOptions = operationArray[1].GetObject();
+        if (featureOptions.HasMember("source")) {
+            sourceID = featureOptions["source"].GetString();
+        }
+        if (featureOptions.HasMember("sourceLayer")) {
+            sourceLayer = { featureOptions["sourceLayer"].GetString() };
+        }
+        if (featureOptions.HasMember("id")) {
+            featureID = featureOptions["id"].GetString();
+        }
+        const JSValue* state = &operationArray[2];
+
+        const std::function<optional<Error> (const std::string&, const Convertible&)> convertFn = [&] (const std::string& k, const Convertible& v) -> optional<Error> {
+            optional<Value> value = toValue(v);
+            if (value) {
+                stateValue = std::move(*value);
+                valueParsed = true;
+            } else if (isArray(v)) {
+                std::vector<Value> array;
+                std::size_t length = arrayLength(v);
+                array.reserve(length);
+                for (size_t i = 0; i < length; ++i) {
+                    optional<Value> arrayVal = toValue(arrayMember(v, i));
+                    if (arrayVal) {
+                        array.emplace_back(*arrayVal);
+                    }
+                }
+                std::unordered_map<std::string, Value> result;
+                result[k]= std::move(array);
+                stateValue = std::move(result);
+                valueParsed = true;
+                return {};
+
+            } else if (isObject(v)) {
+                eachMember(v, convertFn);
+            }
+
+            if (!valueParsed) {
+                metadata.errorMessage = std::string("Could not get feature state value, state key: ")  + k;
+                return nullopt;
+            }
+            stateKey = k;
+            parsedState[stateKey] = stateValue;
+            return nullopt;
+        };
+
+        eachMember(state, convertFn);
+
+        try {
+            frontend.render(map);
+        } catch (const std::exception&) {
+            return false;
+        }
+        frontend.getRenderer()->setFeatureState(sourceID, sourceLayer, featureID, parsedState);
+
+    // getFeatureState
+    } else if (operationArray[0].GetString() == getFeatureStateOp) {
+        assert(operationArray.Size() >= 2u);
+        assert(operationArray[1].IsObject());
+
+        std::string sourceID;
+        mbgl::optional<std::string> sourceLayer;
+        std::string featureID;
+
+        const auto& featureOptions = operationArray[1].GetObject();
+        if (featureOptions.HasMember("source")) {
+            sourceID = featureOptions["source"].GetString();
+        }
+        if (featureOptions.HasMember("sourceLayer")) {
+            sourceLayer = { featureOptions["sourceLayer"].GetString() };
+        }
+        if (featureOptions.HasMember("id")) {
+            featureID = featureOptions["id"].GetString();
+        }
+
+        try {
+            frontend.render(map);
+        } catch (const std::exception&) {
+            return false;
+        }
+        mbgl::FeatureState state;
+        frontend.getRenderer()->getFeatureState(state, sourceID, sourceLayer, featureID);
+
+    // removeFeatureState
+    } else if (operationArray[0].GetString() == removeFeatureStateOp) {
+        assert(operationArray.Size() >= 2u);
+        assert(operationArray[1].IsObject());
+
+        std::string sourceID;
+        mbgl::optional<std::string> sourceLayer;
+        std::string featureID;
+        mbgl::optional<std::string> stateKey;
+
+        const auto& featureOptions = operationArray[1].GetObject();
+        if (featureOptions.HasMember("source")) {
+            sourceID = featureOptions["source"].GetString();
+        }
+        if (featureOptions.HasMember("sourceLayer")) {
+            sourceLayer = { featureOptions["sourceLayer"].GetString() };
+        }
+        if (featureOptions.HasMember("id")) {
+            featureID = featureOptions["id"].GetString();
+        }
+
+        if (operationArray.Size() >= 3u) {
+            assert(operationArray[2].IsString());
+            stateKey = { operationArray[2].GetString() };
+        }
+
+        try {
+            frontend.render(map);
+        } catch (const std::exception&) {
+            return false;
+        }
+        frontend.getRenderer()->removeFeatureState(sourceID, sourceLayer, featureID, stateKey);
+
     } else {
         metadata.errorMessage = std::string("Unsupported operation: ")  + operationArray[0].GetString();
         return false;