[Bug 50783] New: WineTest declares dlls with dots in their name as missing

[WineHQ Bugzilla]

https://bugs.winehq.org/show_bug.cgi?id=50783

Bug ID: 50783
           Summary: WineTest declares dlls with dots in their name as
                    missing
           Product: Wine
           Version: 6.3
          Hardware: x86-64
                OS: Linux
            Status: NEW
          Severity: normal
          Priority: P2
         Component: testcases
          Assignee: [e-mail]
          Reporter: [e-mail]
      Distribution: ---

It turns out that winetest.exe has been checking the presence of the 
dlls by calling LoadLibrary("serialui") and not 
LoadLibrary("serialui.dll"). Surprisingly this works.

But if the dll name contains dots, such as "lib.and.dot.dll", then
LoadLibrary("lib.and.dot") does not work, even if lib.and.dot.dll does exist,
as confirmed by LoadLibrary("lib.and.dot.dll"). At least in Wine.
So this causes winetest.exe to skip the lib.and.dot tests because the dll is
missing.

Maybe that's a LoadLibrary() Wine bug.

Or maybe the fix would be to add the '.dll' extension... except if the name
from 
the test executable ends in .exe, .com, .ocx, etc. But this would require a
list of authorized library extensions (or do the checks twice: once without and
once with the extra .dll extension).

lib.and.dot_test.exe -> lib.and.dot.dll
  msscript.ocx_test.exe -> msscript.ocx
  serialui_test.exe -> serialui.dll
  reg.exe_test.exe -> reg.exe (yes WineTest calls LoadLibrary("reg.exe"))
  chcp.com_test.exe -> chcp.com
  ndis.sys_test.exe -> ndis.sys
  ...

Or change the test executable filenames so they always have the full name of
the tested dll.

Or this could be fixed by not doing the LoadLibrary() check at all:
https://bugs.winehq.org/show_bug.cgi?id=45032#c1