Add some tests

CMakeLists.txt

@@ -25,6 +25,7 @@ set(DUSK_CACHE_TARGET "dusk-target")
 set(DUSK_ROOT_DIR "${CMAKE_SOURCE_DIR}")
 set(DUSK_BUILD_DIR "${CMAKE_BINARY_DIR}")
 set(DUSK_SOURCES_DIR "${DUSK_ROOT_DIR}/src")
+set(DUSK_TEST_DIR "${DUSK_ROOT_DIR}/test")
 set(DUSK_TEMP_DIR "${DUSK_BUILD_DIR}/temp")
 set(DUSK_TOOLS_DIR "${DUSK_ROOT_DIR}/tools")
 set(DUSK_DATA_DIR "${DUSK_ROOT_DIR}/data")
@@ -75,7 +76,7 @@ add_subdirectory(assets)
 if(DUSK_TARGET_SYSTEM STREQUAL "linux")
   find_package(SDL2 REQUIRED)
   find_package(OpenGL REQUIRED)
-  target_link_libraries(${DUSK_LIBRARY_TARGET_NAME} PRIVATE 
+  target_link_libraries(${DUSK_LIBRARY_TARGET_NAME} PUBLIC 
     SDL2
     OpenGL::GL
     GL