dlls/ntdll/tests/time.c

   1 /*
   2  * Unit test suite for ntdll time functions
   3  *
   4  * Copyright 2004 Rein Klazes
   5  *
   6  * This library is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU Lesser General Public
   8  * License as published by the Free Software Foundation; either
   9  * version 2.1 of the License, or (at your option) any later version.
  10  *
  11  * This library is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * Lesser General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU Lesser General Public
  17  * License along with this library; if not, write to the Free Software
  18  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  19  */
  20
  21 #include "ntdll_test.h"
  22
  23 #ifdef __WINE_WINTERNL_H
  24
  25 #define TICKSPERSEC        10000000
  26 #define TICKSPERMSEC       10000
  27 #define SECSPERDAY         86400
  28
  29 static VOID (WINAPI *pRtlTimeToTimeFields)( const LARGE_INTEGER *liTime, PTIME_FIELDS TimeFields) ;
  30 static VOID (WINAPI *pRtlTimeFieldsToTime)(  PTIME_FIELDS TimeFields,  PLARGE_INTEGER Time) ;
  31
  32 static const int MonthLengths[2][12] =
  33 {
  34         { 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31 },
  35         { 31, 29, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31 }
  36 };
  37
  38 static inline int IsLeapYear(int Year)
  39 {
  40         return Year % 4 == 0 && (Year % 100 != 0 || Year % 400 == 0) ? 1 : 0;
  41 }
  42
  43 /* start time of the tests */
  44 TIME_FIELDS tftest = {1889,12,31,23,59,59,0,0};
  45
  46 static void test_pRtlTimeToTimeFields(void)
  47 {
  48     LARGE_INTEGER litime , liresult;
  49     TIME_FIELDS tfresult;
  50     int i=0;
  51     litime.QuadPart = ((ULONGLONG)0x0144017a << 32) | 0xf0b0a980;
  52     while( tftest.Year < 2110 ) {
  53         /* test at the last second of the month */
  54         pRtlTimeToTimeFields( &litime, &tfresult);
  55         ok( tfresult.Year == tftest.Year && tfresult.Month == tftest.Month &&
  56             tfresult.Day == tftest.Day && tfresult.Hour == tftest.Hour &&
  57             tfresult.Minute == tftest.Minute && tfresult.Second == tftest.Second,
  58             "#%d expected: %d-%d-%d %d:%d:%d  got:  %d-%d-%d %d:%d:%d\n", ++i,
  59             tftest.Year, tftest.Month, tftest.Day,
  60             tftest.Hour, tftest.Minute,tftest.Second,
  61             tfresult.Year, tfresult.Month, tfresult.Day,
  62             tfresult.Hour, tfresult.Minute, tfresult.Second);
  63         /* test the inverse */
  64         pRtlTimeFieldsToTime( &tfresult, &liresult);
  65         ok( liresult.QuadPart == litime.QuadPart," TimeFieldsToTime failed on %d-%d-%d %d:%d:%d. Error is %d ticks\n",
  66             tfresult.Year, tfresult.Month, tfresult.Day,
  67             tfresult.Hour, tfresult.Minute, tfresult.Second,
  68             (int) (liresult.QuadPart - litime.QuadPart) );
  69         /*  one second later is beginning of next month */
  70         litime.QuadPart +=  TICKSPERSEC ;
  71         pRtlTimeToTimeFields( &litime, &tfresult);
  72         ok( tfresult.Year == tftest.Year + (tftest.Month ==12) &&
  73             tfresult.Month == tftest.Month % 12 + 1 &&
  74             tfresult.Day == 1 && tfresult.Hour == 0 &&
  75             tfresult.Minute == 0 && tfresult.Second == 0,
  76             "#%d expected: %d-%d-%d %d:%d:%d  got:  %d-%d-%d %d:%d:%d\n", ++i,
  77             tftest.Year + (tftest.Month ==12),
  78             tftest.Month % 12 + 1, 1, 0, 0, 0,
  79             tfresult.Year, tfresult.Month, tfresult.Day,
  80             tfresult.Hour, tfresult.Minute, tfresult.Second);
  81         /* test the inverse */
  82         pRtlTimeFieldsToTime( &tfresult, &liresult);
  83         ok( liresult.QuadPart == litime.QuadPart," TimeFieldsToTime failed on %d-%d-%d %d:%d:%d. Error is %d ticks\n",
  84             tfresult.Year, tfresult.Month, tfresult.Day,
  85             tfresult.Hour, tfresult.Minute, tfresult.Second,
  86             (int) (liresult.QuadPart - litime.QuadPart) );
  87         /* advance to the end of the month */
  88         litime.QuadPart -=  TICKSPERSEC ;
  89         if( tftest.Month == 12) {
  90             tftest.Month = 1;
  91             tftest.Year += 1;
  92         } else
  93             tftest.Month += 1;
  94         tftest.Day = MonthLengths[IsLeapYear(tftest.Year)][tftest.Month - 1];
  95         litime.QuadPart +=  (LONGLONG) tftest.Day * TICKSPERSEC * SECSPERDAY;
  96     }
  97 }
  98 #endif
  99
 100 START_TEST(time)
 101 {
 102 #ifdef __WINE_WINTERNL_H
 103     HMODULE mod = GetModuleHandleA("ntdll.dll");
 104     pRtlTimeToTimeFields = (void *)GetProcAddress(mod,"RtlTimeToTimeFields");
 105     pRtlTimeFieldsToTime = (void *)GetProcAddress(mod,"RtlTimeFieldsToTime");
 106     if (pRtlTimeToTimeFields && pRtlTimeFieldsToTime)
 107         test_pRtlTimeToTimeFields();
 108 #endif
 109 }