Fix missing files for unit tests running on Emscripten

Tests/CMakeLists.txt

@@ -5,7 +5,9 @@ include("${PROJECT_SOURCE_DIR}/CMake/DependenciesForTests.cmake")
 
 if(EMSCRIPTEN)
 	# Add data for tests to emscripten targets
-	set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -sLLD_REPORT_UNDEFINED --preload-file \"${CMAKE_CURRENT_SOURCE_DIR}/Data/@/Tests/Data/\"")
+	set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -sLLD_REPORT_UNDEFINED")
+	set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} --preload-file \"${CMAKE_CURRENT_SOURCE_DIR}/Data/@/Tests/Data/\"")
+	set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} --preload-file \"${PROJECT_SOURCE_DIR}/Samples/basic/demo/data/@/basic/demo/data/\"")
 endif()
 
 add_subdirectory("Source")