Removing obsolete and very incomplete test (replaced by Catch2-based test).

tests/test_smart_holder_poc.cpp

-#include "pybind11_tests.h"
-
-#include <pybind11/smart_holder_poc.h>
-
-#include <iostream>
-#include <string>
-
-namespace pybind11_tests {
-namespace smart_holder_poc {
-
-inline void to_cout(std::string msg) { std::cout << msg << std::endl; }
-
-template <typename T>
-struct functor_builtin_delete {
-  void operator()(T* ptr) { delete ptr; }
-};
-
-inline void exercise() {
-  to_cout("");
-  using pybindit::memory::smart_holder;
-  {
-    smart_holder hld;
-    hld.from_raw_ptr_owned(new int(13));
-    to_cout(hld.rtti_held->name());
-    {
-      std::shared_ptr<int> val = hld.as_shared_ptr<int>();
-      to_cout(std::to_string(*val));
-    }
-    {
-      std::unique_ptr<int> val(hld.as_raw_ptr_owned<int>());
-      to_cout(std::to_string(*val));
-    }
-  }  // namespace ;
-  {
-    std::unique_ptr<int> val(new int(13));
-    smart_holder hld;
-    hld.from_raw_ptr_unowned(val.get());
-    to_cout(std::to_string(*hld.as_raw_ptr_unowned<int>()));
-  }
-  {
-    std::unique_ptr<int> val(new int(13));
-    smart_holder hld;
-    hld.from_unique_ptr(std::move(val));
-    to_cout(std::to_string(*hld.as_raw_ptr_unowned<int>()));
-  }
-  {
-    smart_holder hld;
-    hld.from_raw_ptr_owned(new int(13));
-    to_cout(std::to_string(*hld.as_unique_ptr<int>()));
-  }
-  {
-    std::unique_ptr<int, functor_builtin_delete<int>> unq_ptr(new int(13));
-    smart_holder hld;
-    hld.from_unique_ptr_with_deleter(std::move(unq_ptr));
-    to_cout(std::to_string(unq_ptr.get() == nullptr));
-    to_cout(std::to_string(*hld.as_raw_ptr_unowned<int>()));
-    auto unq_ptr_retrieved =
-        hld.as_unique_ptr_with_deleter<int, functor_builtin_delete<int>>();
-    to_cout(std::to_string(hld.vptr.get() == nullptr));
-    to_cout(std::to_string(*unq_ptr_retrieved));
-  }
-  {
-    std::shared_ptr<int> val(new int(13));
-    smart_holder hld;
-    hld.from_shared_ptr(val);
-    to_cout(std::to_string(*hld.as_raw_ptr_unowned<int>()));
-  }
-}
-
-TEST_SUBMODULE(smart_holder_poc, m) { m.def("exercise", exercise); }
-
-}  // namespace smart_holder_poc
-}  // namespace pybind11_tests

tests/test_smart_holder_poc.py

-# -*- coding: utf-8 -*-
-import pytest
-
-from pybind11_tests import smart_holder_poc as m
-
-
-def test_exercise():
-    m.exercise()