rostests/apitests/localspl/dll/fpEnumPrinters.c

   1 /*
   2  * PROJECT:     ReactOS Local Spooler API Tests Injected DLL
   3  * LICENSE:     GNU GPLv2 or any later version as published by the Free Software Foundation
   4  * PURPOSE:     Tests for fpEnumPrinters
   5  * COPYRIGHT:   Copyright 2015 Colin Finck <colin@reactos.org>
   6  */
   7
   8 #include <apitest.h>
   9
  10 #define WIN32_NO_STATUS
  11 #include <windef.h>
  12 #include <winbase.h>
  13 #include <wingdi.h>
  14 #include <winreg.h>
  15 #include <winspool.h>
  16 #include <winsplp.h>
  17
  18 #include "../localspl_apitest.h"
  19
  20 START_TEST(fpEnumPrinters)
  21 {
  22     DWORD cbNeeded;
  23     DWORD dwReturned;
  24     HMODULE hLocalspl;
  25     PInitializePrintProvidor pfnInitializePrintProvidor;
  26     PRINTPROVIDOR pp;
  27     PPRINTER_INFO_1W pPrinterInfo1;
  28
  29     // Get us a handle to the loaded localspl.dll.
  30     hLocalspl = GetModuleHandleW(L"localspl");
  31     if (!hLocalspl)
  32     {
  33         skip("GetModuleHandleW failed with error %lu!\n", GetLastError());
  34         return;
  35     }
  36
  37     // Get a pointer to its InitializePrintProvidor function.
  38     pfnInitializePrintProvidor = (PInitializePrintProvidor)GetProcAddress(hLocalspl, "InitializePrintProvidor");
  39     if (!pfnInitializePrintProvidor)
  40     {
  41         skip("GetProcAddress failed with error %lu!\n", GetLastError());
  42         return;
  43     }
  44
  45     // Get localspl's function pointers.
  46     if (!pfnInitializePrintProvidor(&pp, sizeof(pp), NULL))
  47     {
  48         skip("pfnInitializePrintProvidor failed with error %lu!\n", GetLastError());
  49         return;
  50     }
  51
  52     // Verify that localspl only returns information about a single print provider (namely itself).
  53     cbNeeded = 0xDEADBEEF;
  54     dwReturned = 0xDEADBEEF;
  55     SetLastError(0xDEADBEEF);
  56     ok(!pp.fpEnumPrinters(PRINTER_ENUM_LOCAL | PRINTER_ENUM_NAME, NULL, 1, NULL, 0, &cbNeeded, &dwReturned), "fpEnumPrinters returns TRUE\n");
  57     ok(GetLastError() == ERROR_INSUFFICIENT_BUFFER, "fpEnumPrinters returns error %lu!\n", GetLastError());
  58     ok(cbNeeded > 0, "cbNeeded is 0!\n");
  59     ok(dwReturned == 0, "dwReturned is %lu!\n", dwReturned);
  60
  61     SetLastError(0xDEADBEEF);
  62     pPrinterInfo1 = HeapAlloc(GetProcessHeap(), 0, cbNeeded);
  63     ok(pp.fpEnumPrinters(PRINTER_ENUM_LOCAL | PRINTER_ENUM_NAME, NULL, 1, (PBYTE)pPrinterInfo1, cbNeeded, &cbNeeded, &dwReturned), "fpEnumPrinters returns FALSE\n");
  64     ok(GetLastError() == ERROR_SUCCESS, "fpEnumPrinters returns error %lu!\n", GetLastError());
  65     ok(cbNeeded > 0, "cbNeeded is 0!\n");
  66     ok(dwReturned == 1, "dwReturned is %lu!\n", dwReturned);
  67
  68     // Verify the actual strings returned.
  69     ok(wcscmp(pPrinterInfo1->pName, L"Windows NT Local Print Providor") == 0, "pPrinterInfo1->pName is \"%S\"!\n", pPrinterInfo1->pName);
  70     ok(wcscmp(pPrinterInfo1->pDescription, L"Windows NT Local Printers") == 0, "pPrinterInfo1->pDescription is \"%S\"!\n", pPrinterInfo1->pDescription);
  71     ok(wcscmp(pPrinterInfo1->pComment, L"Locally connected Printers") == 0, "pPrinterInfo1->pComment is \"%S\"!\n", pPrinterInfo1->pComment);
  72 }