Erich E. Hoover : user32/tests: Fix an inconsistent test case in clearing the clipboard.

[Alexandre Julliard]

Module: wine
Branch: master
Commit: f9b878101e1c44588cea32f74ca74c0ad2c4b75c
URL:    http://source.winehq.org/git/wine.git/?a=commit;h=f9b878101e1c44588cea32f74ca74c0ad2c4b75c

Author: Erich E. Hoover <erich.e.hoover at wine-staging.com>
Date:   Sat Nov 12 16:26:45 2016 -0700

user32/tests: Fix an inconsistent test case in clearing the clipboard.

Depending on our clipboard polling we can get an additional clipboard
update during the clipboard clear test.  This change forces a consistent
state when starting the test, which stops the additional window message
from possibly occurring.

Signed-off-by: Erich E. Hoover <erich.e.hoover at wine-staging.com>
Signed-off-by: Vincent Povirk <vincent at codeweavers.com>
Signed-off-by: Alexandre Julliard <julliard at winehq.org>

---

 dlls/user32/tests/msg.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/dlls/user32/tests/msg.c b/dlls/user32/tests/msg.c
index b132dfe..45b5222 100644
--- a/dlls/user32/tests/msg.c
+++ b/dlls/user32/tests/msg.c
@@ -14054,6 +14054,7 @@ static void test_clipboard_viewers(void)
     trace("clipbd viewers: hWnd1=%p, hWnd2=%p, hWnd3=%p\n", hWnd1, hWnd2, hWnd3);
     assert(hWnd1 && hWnd2 && hWnd3);
 
+    CountClipboardFormats(); /* Ensure that we do not have an X11 update to the clipboard */
     flush_sequence();
 
     /* Test getting the clipboard viewer and setting the viewer to NULL. */