Initialize catch-2 based unit tests

CMakeLists.txt

@@ -33,6 +33,7 @@ option(GPU_DEBUG_INFO "Enable additional GPU debugging info" OFF)
 option(ENABLE_OPENGL "Enable OpenGL rendering backend" ON)
 option(ENABLE_VULKAN "Enable Vulkan rendering backend" ON)
 option(ENABLE_LTO "Enable link-time optimization" OFF)
+option(ENABLE_TESTS "Compile unit-tests" OFF)
 option(ENABLE_USER_BUILD "Make a user-facing build. These builds have various assertions disabled, LTO, and more" OFF)
 option(ENABLE_HTTP_SERVER "Enable HTTP server. Used for Discord bot support" OFF)
 option(ENABLE_DISCORD_RPC "Compile with Discord RPC support (disabled by default)" ON)
@@ -520,3 +521,19 @@ endif()
 if(ENABLE_LTO OR ENABLE_USER_BUILD)
     set_target_properties(Alber PROPERTIES INTERPROCEDURAL_OPTIMIZATION TRUE)
 endif()
+
+if(ENABLE_TESTS)
+    enable_testing()
+    find_package(Catch2 3 REQUIRED)
+    add_executable(AlberTests
+        tests/dynapica.cpp
+    )
+    target_link_libraries(
+        AlberTests
+        PRIVATE
+        Catch2::Catch2WithMain
+        AlberCore
+    )
+
+    add_test(AlberTests AlberTests)
+endif()

tests/dynapica.cpp

@@ -0,0 +1,10 @@
+#include <PICA/dynapica/shader_rec.hpp>
+#include <catch2/catch_approx.hpp>
+#include <catch2/catch_test_macros.hpp>
+
+#include "PICA/shader.hpp"
+
+#if defined(PANDA3DS_SHADER_JIT_SUPPORTED)
+TEST_CASE("Test", "[shader][dynapica]") {}
+
+#endif