refine tests for SourcetrailDBWriter interface

core/include/NameHierarchy.h

@@ -26,6 +26,9 @@ namespace sourcetrail
 {
 	/**
 	* Struct that represents an entire name of a symbol.
+	*
+	* TODO: explain prefix and postfix
+	* TODO: alway provide prefix and postfix of all name elements to make them unique. Example from C++ (2 foo::bar (foo has different signature)
 	*/
 	struct NameHierarchy
 	{
@@ -33,6 +36,7 @@ namespace sourcetrail
 		std::vector<NameElement> nameElements;
 	};
 
+	std::string serializeNameHierarchyToDatabaseString(const NameHierarchy& nameHierarchy);
 	std::string serializeNameHierarchyToJson(const NameHierarchy& nameHierarchy);
 	NameHierarchy deserializeNameHierarchyFromJson(const std::string& serializedNameHierarchy);
 }

core/include/SourcetrailDBWriter.h

@@ -87,7 +87,6 @@ namespace sourcetrail
 		bool recordError(const std::string& message, bool fatal, const SourceRange& location);
 
 	private:
-		static std::string serializeNameHierarchy(const NameHierarchy& nameHierarchy);
 		void openDatabase();
 		void closeDatabase();
 		void setupDatabaseTables();