reactos/modules/rostests/apitests/user32/EmptyClipboard.c

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/*
* PROJECT: ReactOS api tests
* LICENSE: GPL - See COPYING in the top level directory
* PURPOSE: Test for EmptyClipboard
* PROGRAMMERS: Giannis Adamopoulos
*/
2017-12-02 20:17:22 +00:00
#include "precomp.h"
HWND hWnd1, hWnd2;
CRITICAL_SECTION CritSect;
/* FIXME: test for HWND_TOP, etc...*/
static int get_iwnd(HWND hWnd)
{
if(hWnd == hWnd1) return 1;
else if(hWnd2 && hWnd == hWnd2) return 2;
else return 0;
}
LRESULT CALLBACK ClipTestProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam)
{
int iwnd = get_iwnd(hWnd);
if(message > WM_USER || !iwnd || IsDWmMsg(message) || IseKeyMsg(message))
return DefWindowProc(hWnd, message, wParam, lParam);
switch(message)
{
case WM_GETICON :
case WM_SETICON:
break;
case WM_DESTROYCLIPBOARD:
Sleep(1000);
default:
EnterCriticalSection(&CritSect);
RECORD_MESSAGE(iwnd, message, SENT, 0,0);
LeaveCriticalSection(&CritSect);
}
return DefWindowProc(hWnd, message, wParam, lParam);
}
static void RecordAndDispatch(MSG* pmsg)
{
int iwnd = get_iwnd(pmsg->hwnd);
if(!(pmsg->message > WM_USER || !iwnd || IsDWmMsg(pmsg->message) || IseKeyMsg(pmsg->message)))
{
EnterCriticalSection(&CritSect);
RECORD_MESSAGE(iwnd, pmsg->message, POST,0,0);
LeaveCriticalSection(&CritSect);
}
DispatchMessageA( pmsg );
}
static void FlushMessages()
{
MSG msg;
while (PeekMessage( &msg, 0, 0, 0, PM_REMOVE ))
RecordAndDispatch(&msg);
}
static DWORD WINAPI ClipThread(PVOID Parameter)
{
BOOL ret;
hWnd2 = CreateWindowW(L"clipstest", L"clipstest", WS_OVERLAPPEDWINDOW,
20, 20, 300, 300, NULL, NULL, 0, NULL);
/* Get ownership of the clipboard and record the messages we get */
ret = OpenClipboard(hWnd2);
ok (ret, "OpenClipboard failed\n");
EnterCriticalSection(&CritSect);
RECORD_MESSAGE(1, WM_DESTROYCLIPBOARD, MARKER,0,0);
LeaveCriticalSection(&CritSect);
ret = EmptyClipboard();
ok (ret, "EmptyClipboard failed\n");
EnterCriticalSection(&CritSect);
RECORD_MESSAGE(1, WM_DESTROYCLIPBOARD, MARKER,1,0);
LeaveCriticalSection(&CritSect);
ret = CloseClipboard();
ok (ret, "CloseClipboard failed\n");
/* Record if we got any post messages */
FlushMessages();
/* Force the parent thread out of its loop */
PostMessageW(hWnd1, WM_QUIT, 0, 0);
return 0;
}
MSG_ENTRY EmptyClipboard_chain[]={
{1,WM_DESTROYCLIPBOARD, MARKER, 0},
{1,WM_DESTROYCLIPBOARD, SENT},
{1,WM_DESTROYCLIPBOARD, MARKER, 1},
{0,0}};
void TestMessages()
{
HANDLE hThread;
DWORD dwThread;
BOOL ret;
MSG msg;
/* Initialize the test */
InitializeCriticalSection(&CritSect);
RegisterSimpleClass(ClipTestProc, L"clipstest");
hWnd2 = NULL;
hWnd1 = CreateWindowW(L"clipstest", L"clipstest", WS_OVERLAPPEDWINDOW,
20, 20, 300, 300, NULL, NULL, 0, NULL);
ok (hWnd1 != NULL, "CreateWindowW failed\n");
EMPTY_CACHE();
/* Get ownership of the clipboard and record the messages we get */
ret = OpenClipboard(hWnd1);
ok (ret, "OpenClipboard failed\n");
ret = EmptyClipboard();
ok (ret, "EmptyClipboard failed\n");
ret = CloseClipboard();
ok (ret, "CloseClipboard failed\n");
/* Record posted messages */
FlushMessages();
COMPARE_CACHE(empty_chain);
/* Create the child thread and record messages till we get the WM_QUIT */
hThread = CreateThread(NULL, 0, ClipThread, NULL, 0, &dwThread);
while (GetMessage(&msg, 0, 0 ,0))
RecordAndDispatch(&msg);
COMPARE_CACHE(EmptyClipboard_chain);
CloseHandle(hThread);
}
void TestOwnership()
{
BOOL ret;
HWND hWnd, hWndClipOwner;
ret = OpenClipboard(NULL);
ok (ret, "OpenClipboard failed\n");
ret = EmptyClipboard();
ok (ret, "EmptyClipboard failed\n");
ret = CloseClipboard();
ok (ret, "CloseClipboard failed\n");
hWndClipOwner = GetClipboardOwner();
ok (hWndClipOwner == NULL, "Expected NULL owner\n");
hWnd = CreateWindowW(L"static", L"static", WS_OVERLAPPEDWINDOW, 20, 20, 300, 300, NULL, NULL, 0, NULL);
ok (hWnd != 0 , "CreateWindowW failed\n");
ret = OpenClipboard(hWnd);
ok (ret, "OpenClipboard failed\n");
hWndClipOwner = GetClipboardOwner();
ok (hWndClipOwner == NULL, "Expected NULL owner\n");
ret = EmptyClipboard();
ok (ret, "EmptyClipboard failed\n");
ret = CloseClipboard();
ok (ret, "CloseClipboard failed\n");
hWndClipOwner = GetClipboardOwner();
ok (hWndClipOwner == hWnd, "Expected hWnd owner\n");
DestroyWindow(hWnd);
}
START_TEST(EmptyClipboard)
{
TestOwnership();
TestMessages();
}