Add unit test main

test/unit/CMakeLists.txt

@@ -1,2 +1,18 @@
 project(centurion-test-unit CXX)
 
+add_executable(centurion-unit-tests)
+
+file(GLOB_RECURSE CEN_UNIT_TEST_SOURCE_FILES CONFIGURE_DEPENDS
+     "${PROJECT_SOURCE_DIR}/**/*.cpp"
+     )
+target_sources(centurion-unit-tests PRIVATE "${CEN_UNIT_TEST_SOURCE_FILES}")
+
+cen_prepare_target_options(centurion-unit-tests)
+
+target_link_libraries(centurion-unit-tests
+                      PRIVATE
+                      centurion::centurion
+                      GTest::gtest
+                      )
+
+cen_install_assets("${PROJECT_BINARY_DIR}")

test/unit/centurion/main.cpp

@@ -0,0 +1,52 @@
+// Copyright (C) 2019-2023 Albin Johansson (MIT License)
+
+#include <iomanip>
+#include <iostream>
+
+#include <SDL3/SDL.h>
+#include <gtest/gtest.h>
+
+#include "centurion/core/init.hpp"
+#include "centurion/core/version.hpp"
+
+auto main(int argc, char* argv[]) -> int
+{
+  std::cout << "Centurion version: " << cen::version::current() << '\n';
+
+  const auto sdl_flags = SDL_INIT_TIMER | SDL_INIT_EVENTS | SDL_INIT_VIDEO;
+  const auto sdl [[maybe_unused]] = cen::sdl_library::init(sdl_flags).value();
+
+  std::cout << "SDL header version: " << cen::sdl_header_version() << '\n';
+  std::cout << "SDL linked version: " << cen::sdl_linked_version() << '\n';
+  std::cout << "SDL revision: " << std::quoted(SDL_GetRevision()) << '\n';
+
+#ifndef CENTURION_NO_SDL_IMAGE
+  const auto img_flags = IMG_INIT_PNG;
+  const auto img [[maybe_unused]] = cen::img_library::init(img_flags).value();
+
+  std::cout << "SDL_image header version: " << cen::img_header_version()
+            << '\n';
+  std::cout << "SDL_image linked version: " << cen::img_linked_version()
+            << '\n';
+#endif  // CENTURION_NO_SDL_IMAGE
+
+#ifndef CENTURION_NO_SDL_MIXER
+  const auto mix_flags = MIX_INIT_MP3;
+  const auto mix [[maybe_unused]] = cen::mix_library::init(mix_flags).value();
+
+  std::cout << "SDL_mixer header version: " << cen::mix_header_version()
+            << '\n';
+  std::cout << "SDL_mixer linked version: " << cen::mix_linked_version()
+            << '\n';
+#endif  // CENTURION_NO_SDL_MIXER
+
+#ifndef CENTURION_NO_SDL_TTF
+  const auto ttf [[maybe_unused]] = cen::ttf_library::init().value();
+
+  std::cout << "SDL_ttf header version: " << cen::ttf_header_version() << '\n';
+  std::cout << "SDL_ttf linked version: " << cen::ttf_linked_version() << '\n';
+#endif  // CENTURION_NO_SDL_TTF
+
+  testing::InitGoogleTest(&argc, argv);
+  return RUN_ALL_TESTS();
+}