All tests pass when using m.make_derived_as_base0_raw_ptr(), with USE_SH defined or not defined. [ci skip]

Author: rwgk

tests/test_mi_debug.cpp

@@ -16,15 +16,21 @@ namespace test_mi_debug {
 
 struct Base0 {
     virtual ~Base0() = default;
+    Base0() = default;
+    Base0(const Base0 &) = delete;
 };
 
 struct Base1 {
     virtual ~Base1() = default;
     std::vector<int> vec = {1, 2, 3, 4, 5};
+    Base1() = default;
+    Base1(const Base1 &) = delete;
 };
 
 struct Derived : Base1, Base0 {
     ~Derived() override = default;
+    Derived() = default;
+    Derived(const Derived &) = delete;
 };
 
 } // namespace test_mi_debug
@@ -50,10 +56,27 @@ TEST_SUBMODULE(mi_debug, m) {
 
     m.def("make_derived_as_base0", []() -> std::shared_ptr<Base0> {
         auto ret_der = std::make_shared<Derived>();
+        printf("\nLOOOK [%lu] %s:%d\n", (std::size_t) ret_der.get(), __FILE__, __LINE__);
+        fflush(stdout);
         auto ret = std::dynamic_pointer_cast<Base0>(ret_der);
+        printf("\nLOOOK [%lu] %s:%d\n", (std::size_t) ret.get(), __FILE__, __LINE__);
+        fflush(stdout);
         return ret;
     });
 
+    m.def(
+        "make_derived_as_base0_raw_ptr",
+        []() {
+            auto ret_der = new Derived{};
+            printf("\nLOOOK [%lu] %s:%d\n", (std::size_t) ret_der, __FILE__, __LINE__);
+            fflush(stdout);
+            auto ret = dynamic_cast<Base0 *>(ret_der);
+            printf("\nLOOOK [%lu] %s:%d\n", (std::size_t) ret, __FILE__, __LINE__);
+            fflush(stdout);
+            return ret;
+        },
+        py::return_value_policy::take_ownership);
+
     // class_ OK
     // classh FAIL
     m.def("get_vec_size_raw_ptr_base0", [](const Base0 *obj) -> std::size_t {
@@ -66,7 +89,11 @@ TEST_SUBMODULE(mi_debug, m) {
 
     // class_ OK
     // classh FAIL
-    m.def("get_vec_size_raw_ptr_derived", [](const Derived *obj) { return obj->vec.size(); });
+    m.def("get_vec_size_raw_ptr_derived", [](const Derived *obj) {
+        printf("\nLOOOK [%lu] %s:%d\n", (std::size_t) obj, __FILE__, __LINE__);
+        fflush(stdout);
+        return obj->vec.size();
+    });
 
     // class_ OK
     // classh FAIL

tests/test_mi_debug.py

@@ -2,15 +2,15 @@
 
 
 def test_get_vec_size_raw_ptr_base0():
-    obj = m.make_derived_as_base0()
+    obj = m.make_derived_as_base0_raw_ptr()
     assert m.get_vec_size_raw_ptr_base0(obj) == 5
 
 
 def test_get_vec_size_raw_ptr_derived():
-    obj = m.make_derived_as_base0()
+    obj = m.make_derived_as_base0_raw_ptr()
     assert m.get_vec_size_raw_ptr_derived(obj) == 5
 
 
 def test_get_vec_size_shared_ptr_derived():
-    obj = m.make_derived_as_base0()
+    obj = m.make_derived_as_base0_raw_ptr()
     assert m.get_vec_size_shared_ptr_derived(obj) == 5