rostests/apitests/win32nt/ntgdi/NtGdiGetRandomRgn.c

   1 /*
   2  * PROJECT:         ReactOS api tests
   3  * LICENSE:         GPL - See COPYING in the top level directory
   4  * PURPOSE:         Test for NtGdiGetRandomRgn
   5  * PROGRAMMERS:
   6  */
   7
   8 #include <win32nt.h>
   9
  10 START_TEST(NtGdiGetRandomRgn)
  11 {
  12     HINSTANCE hinst = GetModuleHandle(NULL);
  13         HWND hWnd;
  14         HDC hDC;
  15         HRGN hrgn, hrgn2;
  16
  17         /* Create a window */
  18         hWnd = CreateWindowW(L"BUTTON", L"TestWindow", WS_OVERLAPPEDWINDOW | WS_VISIBLE,
  19                             CW_USEDEFAULT, CW_USEDEFAULT, 100, 100,
  20                             NULL, NULL, hinst, 0);
  21 //      UpdateWindow(hWnd);
  22         hDC = GetDC(hWnd);
  23
  24         ASSERT(hDC != NULL);
  25
  26         hrgn = CreateRectRgn(0,0,0,0);
  27         hrgn2 = CreateRectRgn(3,3,10,10);
  28         SetLastError(ERROR_SUCCESS);
  29         RTEST(NtGdiGetRandomRgn(0, hrgn, 0) == -1);
  30         RTEST(GetLastError() == ERROR_INVALID_HANDLE);
  31
  32         SetLastError(ERROR_SUCCESS);
  33         RTEST(NtGdiGetRandomRgn((HDC)2345, hrgn, 1) == -1);
  34         RTEST(GetLastError() == ERROR_INVALID_HANDLE);
  35
  36         SetLastError(ERROR_SUCCESS);
  37         RTEST(NtGdiGetRandomRgn((HDC)2345, hrgn, 10) == -1);
  38         RTEST(GetLastError() == ERROR_INVALID_HANDLE);
  39
  40         SetLastError(ERROR_SUCCESS);
  41         RTEST(NtGdiGetRandomRgn((HDC)2345, (HRGN)10, 10) == -1);
  42         RTEST(GetLastError() == ERROR_INVALID_HANDLE);
  43
  44         SetLastError(ERROR_SUCCESS);
  45         RTEST(NtGdiGetRandomRgn((HDC)2345, 0, 1) == -1);
  46         RTEST(GetLastError() == ERROR_INVALID_HANDLE);
  47
  48         SetLastError(ERROR_SUCCESS);
  49         RTEST(NtGdiGetRandomRgn(hDC, 0, 0) == 0);
  50         RTEST(NtGdiGetRandomRgn(hDC, 0, 1) == 0);
  51         RTEST(NtGdiGetRandomRgn(hDC, (HRGN)-5, 0) == 0);
  52         RTEST(NtGdiGetRandomRgn(hDC, (HRGN)-5, 1) == 0);
  53         RTEST(NtGdiGetRandomRgn(hDC, hrgn, 0) == 0);
  54         RTEST(NtGdiGetRandomRgn(hDC, hrgn, 1) == 0);
  55         TEST(NtGdiGetRandomRgn(hDC, hrgn, 2) == 0);
  56         RTEST(NtGdiGetRandomRgn(hDC, hrgn, 3) == 0);
  57         RTEST(NtGdiGetRandomRgn(hDC, hrgn, 4) == 1);
  58         RTEST(NtGdiGetRandomRgn(hDC, hrgn, 5) == 0);
  59         RTEST(NtGdiGetRandomRgn(hDC, hrgn, 10) == 0);
  60         RTEST(NtGdiGetRandomRgn(hDC, hrgn, -10) == 0);
  61         RTEST(GetLastError() == ERROR_SUCCESS);
  62
  63         SelectClipRgn(hDC, hrgn2);
  64         RTEST(NtGdiGetRandomRgn(hDC, 0, 1) == -1);
  65         RTEST(GetLastError() == ERROR_SUCCESS);
  66         RTEST(NtGdiGetRandomRgn(hDC, hrgn, 1) == 1);
  67         RTEST(CombineRgn(hrgn, hrgn, hrgn, RGN_OR) == SIMPLEREGION);
  68         RTEST(CombineRgn(hrgn, hrgn, hrgn2, RGN_XOR) == NULLREGION);
  69
  70         SetRectRgn(hrgn2,0,0,0,0);
  71         SelectClipRgn(hDC, hrgn2);
  72         RTEST(NtGdiGetRandomRgn(hDC, hrgn, 1) == 1);
  73
  74         RTEST(CombineRgn(hrgn2, hrgn, hrgn2, RGN_XOR) == NULLREGION);
  75         RTEST(CombineRgn(hrgn2, hrgn, hrgn, RGN_OR) == NULLREGION);
  76
  77         SelectClipRgn(hDC, NULL);
  78         RTEST(NtGdiGetRandomRgn(hDC, hrgn, 1) == 0);
  79
  80
  81         RTEST(NtGdiGetRandomRgn(hDC, hrgn, 4) == 1);
  82
  83         RTEST(GetLastError() == ERROR_SUCCESS);
  84
  85         ReleaseDC(hWnd, hDC);
  86         DestroyWindow(hWnd);
  87
  88 }