Adding test_multiple_registered_instances_for_same_pointee_leak. Subtle changes in smart_holder_type_caster_load, trying to work on weak_ptr for shared_ptr_trampoline_self_life_support, but that didn't work out. Manually fully leak-checked again.

tests/test_class_sh_trampoline_shared_from_this.py

@@ -170,6 +170,20 @@ def test_multiple_registered_instances_for_same_pointee():
             assert obj_pt.attachment_in_dict == "Obj0"
         else:
             assert not hasattr(obj_pt, "attachment_in_dict")
+        assert obj0.history == "PySft"
+        break  # Comment out for manual leak checking (use `top` command).
+
+
+def test_multiple_registered_instances_for_same_pointee_leak():
+    obj0 = PySft("")
+    while True:
+        stash1 = m.SftSharedPtrStash(1)
+        stash1.Add(m.Sft(obj0))
+        assert stash1.use_count(0) == 1
+        stash1.Add(m.Sft(obj0))
+        assert stash1.use_count(0) == 1
+        assert stash1.use_count(1) == 1
+        assert obj0.history == ""
         break  # Comment out for manual leak checking (use `top` command).
 
 

tests/test_class_sh_trampoline_shared_ptr_cpp_arg.py

@@ -130,7 +130,7 @@ def test_infinite():
     tester = m.SpBaseTester()
     while True:
         tester.set_object(m.SpBase())
-        return  # Comment out for manual leak checking (use `top` command).
+        break  # Comment out for manual leak checking (use `top` command).
 
 
 def test_std_make_shared_factory():
@@ -139,4 +139,6 @@ def test_std_make_shared_factory():
             super(PyChild, self).__init__(0)
 
     obj = PyChild()
-    assert m.pass_through_shd_ptr(obj) is obj
+    while True:
+        assert m.pass_through_shd_ptr(obj) is obj
+        break  # Comment out for manual leak checking (use `top` command).