[PATCH 1/2] kernel32: test that HeapSize() works on GMEM_MOVEABLE global memory on Windows

[Damjan Jovanovic]

In #38924, Tapps 2, DirMaster, and even wxWidgets' sample code (and
thus probably many more wxWidgets applications out in the field), all
crash during drag-and-drop with custom formats, which they use to
implement within-application actions such as rearranging shapes and
moving text.

Luckily wxWidgets is our dog food and builds easily, so it could be
patched to investigate.

It turns out that wxWidgets expects HeapSize() to succeed on the
pointer to global memory returned by GlobalLock(). On Wine this fails,
causing wxWidgets to pass a NULL pointer to the application for the
drag-and-drop data. Application accesses NULL pointer -> crash.

This patch adds a test for this problem.

Signed-off-by: Damjan Jovanovic <damjan.jov(a)gmail.com>
---
 dlls/kernel32/tests/heap.c | 10 ++++++++++
 1 file changed, 10 insertions(+)

[Marvin]

Hi,

While running your changed tests, I think I found new failures.
Being a bot and all I'm not very good at pattern recognition, so I might be
wrong, but could you please double-check?

Full results can be found at:
https://testbot.winehq.org/JobDetails.pl?Key=58458

Your paranoid android.


=== wvistau64 (task log) ===

Task errors:
The previous 1 run(s) terminated abnormally