modules/rostests/apitests/crt/mbtowc.c

   1 /*
   2  * PROJECT:         ReactOS API tests
   3  * LICENSE:         GPL-2.0-or-later (https://spdx.org/licenses/GPL-2.0-or-later)
   4  * PURPOSE:         Tests for mbtowc
   5  * COPYRIGHT:       Copyright 2020 George Bișoc <george.bisoc@reactos.org>
   6  */
   7
   8 #include <apitest.h>
   9 #include <apitest_guard.h>
  10
  11 #define WIN32_NO_STATUS
  12 #include <stdio.h>
  13 #include <stdlib.h>
  14
  15 START_TEST(mbtowc)
  16 {
  17     int Length;
  18     wchar_t BufferDest[3];
  19     char *ch;
  20
  21     ch = AllocateGuarded(sizeof(ch));
  22     if (!ch)
  23     {
  24         skip("Buffer allocation failed!\n");
  25         return;
  26     }
  27
  28     /* Assign a character for tests */
  29     *ch = 'A';
  30
  31     /* Everything is NULL */
  32     Length = mbtowc(NULL, NULL, 0);
  33     ok(Length == 0, "Expected 0 characters to be converted as everything is NULL but got %u.\n", Length);
  34
  35     /* Don't examine the number of bytes pointed by multibyte parameter */
  36     Length = mbtowc(BufferDest, ch, 0);
  37     ok(Length == 0, "Expected 0 characters to be converted but got %u.\n", Length);
  38
  39     /* Wide character argument is invalid */
  40     Length = mbtowc(NULL, ch, 0);
  41     ok(Length == 0, "Expected 0 characters to be converted but got %u.\n", Length);
  42
  43     /* The multibyte argument is invalid */
  44     Length = mbtowc(BufferDest, NULL, 0);
  45     ok(Length == 0, "Expected 0 characters to be converted but got %u.\n", Length);
  46
  47     /* The multibyte argument is invalid but count number for examination is correct */
  48     Length = mbtowc(BufferDest, NULL, MB_CUR_MAX);
  49     ok(Length == 0, "Expected 0 characters to be converted but got %u.\n", Length);
  50
  51     /* Don't give the output but the count character inspection argument is valid */
  52     Length = mbtowc(NULL, ch, MB_CUR_MAX);
  53     ok(Length == 1, "The number of bytes to check should be 1 but got %u.\n", Length);
  54
  55     /* Convert the character and validate the output that we should get */
  56     Length = mbtowc(BufferDest, ch, MB_CUR_MAX);
  57     ok(Length == 1, "Expected 1 character to be converted but got %u.\n", Length);
  58     ok_int(BufferDest[0], L'A');
  59
  60     FreeGuarded(ch);
  61 }