Add build script for unit tests

tests/CMakeLists.txt

@@ -53,3 +53,4 @@ function(cen_prepare_target target)
   endif ()
 endfunction()
 
+add_subdirectory(unit-tests)

tests/unit-tests/CMakeLists.txt

@@ -0,0 +1,26 @@
+project(centurion-unit-tests LANGUAGES CXX)
+
+file(GLOB_RECURSE CENTURION_UNIT_TEST_FILES
+     CONFIGURE_DEPENDS
+     ${PROJECT_SOURCE_DIR}/src/*.hpp
+     ${PROJECT_SOURCE_DIR}/src/*.cpp
+     )
+
+add_executable(centurion-tests ${CENTURION_UNIT_TEST_FILES})
+
+cen_prepare_target(centurion-tests)
+
+target_include_directories(centurion-tests PRIVATE ${PROJECT_SOURCE_DIR})
+
+target_link_libraries(centurion-tests
+                      PRIVATE
+                      cen::centurion
+                      GTest::gtest
+                      )
+
+if (WIN32)
+  file(COPY ${SDL3_BINARY_DIR}/SDL3.dll DESTINATION ${CMAKE_CURRENT_BINARY_DIR})
+  file(COPY ${CMAKE_BINARY_DIR}/external/SDL_image/SDL3_image.dll DESTINATION ${CMAKE_CURRENT_BINARY_DIR})
+  file(COPY ${CMAKE_BINARY_DIR}/external/SDL_mixer/SDL3_mixer.dll DESTINATION ${CMAKE_CURRENT_BINARY_DIR})
+  file(COPY ${CMAKE_BINARY_DIR}/external/SDL_ttf/SDL3_ttf.dll DESTINATION ${CMAKE_CURRENT_BINARY_DIR})
+endif ()