gh-46376: add (failing) tests for ctypes/pointer/cast/set_contents #108519
+499
−5
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Previous attempt to fix gh-46376 was incomplete and overall it didn't succeed, and was reverted. However, we have discovered some dangerous issues with ctypes, that aren't fixed or documented anywhere.
This commit adds tests (@expectedfailure) so at least developers are aware of situations where memory might be corrupted, leaked or when changing a pointer value might have no effect.
Hopefully, we should be able to remove @expectedfailure in the future, with new shiny ctypes implementation or at least a bugfix.
/cc @ambv