Add C++ interface for the Python interpreter
diff --git a/tests/test_embed/catch.cpp b/tests/test_embed/catch.cpp
index f79fe17..cface48 100644
--- a/tests/test_embed/catch.cpp
+++ b/tests/test_embed/catch.cpp
@@ -1,5 +1,16 @@
-// Catch provides the `int main()` function here. This is a standalone
+// The Catch implementation is compiled here. This is a standalone
// translation unit to avoid recompiling it for every test change.
-#define CATCH_CONFIG_MAIN
+#include <pybind11/embed.h>
+
+#define CATCH_CONFIG_RUNNER
#include <catch.hpp>
+
+namespace py = pybind11;
+
+int main(int argc, const char *argv[]) {
+ py::scoped_interpreter guard{};
+ auto result = Catch::Session().run(argc, argv);
+
+ return result < 0xff ? result : 0xff;
+}