modules/rostests/apitests/kernel32/FormatMessage.c

   1 /*
   2  * PROJECT:         ReactOS api tests
   3  * LICENSE:         GPLv2+ - See COPYING in the top level directory
   4  * PURPOSE:         Test for FormatMessage and resources
   5  * PROGRAMMERS:     Pierre Schweitzer
   6  */
   7
   8 #include <apitest.h>
   9 #include <FormatMessage.h>
  10
  11 WCHAR First[] = L"This is a test message.\r\n";
  12 WCHAR Second[] = L"This is a second test message.\r\n";
  13
  14 START_TEST(FormatMessage)
  15 {
  16     PWSTR Buffer;
  17     DWORD Written;
  18
  19     Buffer = NULL;
  20     Written = FormatMessageW(FORMAT_MESSAGE_FROM_HMODULE | FORMAT_MESSAGE_ALLOCATE_BUFFER,
  21                              NULL, MSG_FIRST_MESSAGE, 0, (LPWSTR)&Buffer, 0, NULL);
  22     ok(Written != 0, "Unexpected error: %lx\n", GetLastError());
  23     ok(Buffer != NULL, "No buffer allocated\n");
  24     ok(Written == (sizeof(First) - sizeof(UNICODE_NULL)) / sizeof(WCHAR),
  25        "Invalid size: %ld (expected: %d)\n",
  26        Written, (sizeof(First) - sizeof(UNICODE_NULL)) / sizeof(WCHAR));
  27     ok(RtlCompareMemory(Buffer, First, sizeof(First) - sizeof(UNICODE_NULL)) ==
  28                         sizeof(First) - sizeof(UNICODE_NULL),
  29        "Mismatching string: %S (expected : %S)\n", Buffer, First);
  30     LocalFree(Buffer);
  31
  32     Buffer = NULL;
  33     Written = FormatMessageW(FORMAT_MESSAGE_FROM_HMODULE | FORMAT_MESSAGE_ALLOCATE_BUFFER,
  34                              NULL, MSG_SECOND_MESSAGE, 0, (LPWSTR)&Buffer, 0, NULL);
  35     ok(Written != 0, "Unexpected error: %lx\n", GetLastError());
  36     ok(Buffer != NULL, "No buffer allocated\n");
  37     ok(Written == (sizeof(Second) - sizeof(UNICODE_NULL)) / sizeof(WCHAR),
  38        "Invalid size: %ld (expected: %d)\n",
  39        Written, (sizeof(Second) - sizeof(UNICODE_NULL)) / sizeof(WCHAR));
  40     ok(RtlCompareMemory(Buffer, Second, sizeof(Second) - sizeof(UNICODE_NULL)) ==
  41        sizeof(Second) - sizeof(UNICODE_NULL),
  42        "Mismatching string: %S (expected: %S)\n", Buffer, Second);
  43     LocalFree(Buffer);
  44
  45     Buffer = NULL;
  46     Written = FormatMessageW(FORMAT_MESSAGE_FROM_HMODULE | FORMAT_MESSAGE_ALLOCATE_BUFFER,
  47                              NULL, MSG_SECOND_MESSAGE + 1, 0, (LPWSTR)&Buffer, 0, NULL);
  48     ok(Written == 0, "Unexpected success: %ld\n", Written);
  49     ok(Buffer == NULL, "Unexpected success: %p\n", Buffer);
  50     ok(GetLastError() == 0x13d, "Unexpected error: %lx\n", GetLastError());
  51 }