[test] Added GlyphManager.ImmediateFileSource

test/src/mbgl/test/stub_file_source.cpp

@@ -17,7 +17,12 @@ public:
     StubFileSource& fileSource;
 };
 
-StubFileSource::StubFileSource() {
+StubFileSource::StubFileSource(ResponseType type_)
+        : type(type_) {
+    if (type == ResponseType::Synchronous) {
+        return;
+    }
+
     timer.start(1ms, 1ms, [this] {
         // Explicit copy to avoid iterator invalidation if ~StubFileRequest gets called within the loop.
         auto pending_ = pending;
@@ -46,7 +51,14 @@ StubFileSource::~StubFileSource() = default;
 
 std::unique_ptr<AsyncRequest> StubFileSource::request(const Resource& resource, Callback callback) {
     auto req = std::make_unique<StubFileRequest>(*this);
-    pending.emplace(req.get(), std::make_tuple(resource, response, callback));
+    if (type == ResponseType::Synchronous) {
+        optional<Response> res = response(resource);
+        if (res) {
+            callback(*res);
+        }
+    } else {
+        pending.emplace(req.get(), std::make_tuple(resource, response, callback));
+    }
     return std::move(req);
 }
 

test/src/mbgl/test/stub_file_source.hpp

@@ -9,7 +9,12 @@ namespace mbgl {
 
 class StubFileSource : public FileSource {
 public:
-    StubFileSource();
+    enum class ResponseType {
+        Asynchronous = 0,
+        Synchronous
+    };
+
+    StubFileSource(ResponseType = ResponseType::Asynchronous);
     ~StubFileSource() override;
 
     std::unique_ptr<AsyncRequest> request(const Resource&, Callback) override;
@@ -36,6 +41,7 @@ private:
     optional<Response> defaultResponse(const Resource&);
 
     std::unordered_map<AsyncRequest*, std::tuple<Resource, ResponseFunction, Callback>> pending;
+    ResponseType type;
     util::Timer timer;
 };