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 #define TICKSPERSEC        10000000
  24 #define TICKSPERMSEC       10000
  25 #define SECSPERDAY         86400
  26
  27 static VOID (WINAPI *pRtlTimeToTimeFields)( const LARGE_INTEGER *liTime, PTIME_FIELDS TimeFields) ;
  28 static VOID (WINAPI *pRtlTimeFieldsToTime)(  PTIME_FIELDS TimeFields,  PLARGE_INTEGER Time) ;
  29
  30 static const int MonthLengths[2][12] =
  31 {
  32         { 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31 },
  33         { 31, 29, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31 }
  34 };
  35
  36 static inline int IsLeapYear(int Year)
  37 {
  38         return Year % 4 == 0 && (Year % 100 != 0 || Year % 400 == 0) ? 1 : 0;
  39 }
  40
  41 /* start time of the tests */
  42 TIME_FIELDS tftest = {1889,12,31,23,59,59,0,0};
  43
  44 static void test_pRtlTimeToTimeFields(void)
  45 {
  46     LARGE_INTEGER litime , liresult;
  47     TIME_FIELDS tfresult;
  48     int i=0;
  49     litime.QuadPart = ((ULONGLONG)0x0144017a << 32) | 0xf0b0a980;
  50     while( tftest.Year < 2110 ) {
  51         /* test at the last second of the month */
  52         pRtlTimeToTimeFields( &litime, &tfresult);
  53         ok( tfresult.Year == tftest.Year && tfresult.Month == tftest.Month &&
  54             tfresult.Day == tftest.Day && tfresult.Hour == tftest.Hour &&
  55             tfresult.Minute == tftest.Minute && tfresult.Second == tftest.Second,
  56             "#%d expected: %d-%d-%d %d:%d:%d  got:  %d-%d-%d %d:%d:%d\n", ++i,
  57             tftest.Year, tftest.Month, tftest.Day,
  58             tftest.Hour, tftest.Minute,tftest.Second,
  59             tfresult.Year, tfresult.Month, tfresult.Day,
  60             tfresult.Hour, tfresult.Minute, tfresult.Second);
  61         /* test the inverse */
  62         pRtlTimeFieldsToTime( &tfresult, &liresult);
  63         ok( liresult.QuadPart == litime.QuadPart," TimeFieldsToTime failed on %d-%d-%d %d:%d:%d. Error is %d ticks\n",
  64             tfresult.Year, tfresult.Month, tfresult.Day,
  65             tfresult.Hour, tfresult.Minute, tfresult.Second,
  66             (int) (liresult.QuadPart - litime.QuadPart) );
  67         /*  one second later is beginning of next month */
  68         litime.QuadPart +=  TICKSPERSEC ;
  69         pRtlTimeToTimeFields( &litime, &tfresult);
  70         ok( tfresult.Year == tftest.Year + (tftest.Month ==12) &&
  71             tfresult.Month == tftest.Month % 12 + 1 &&
  72             tfresult.Day == 1 && tfresult.Hour == 0 &&
  73             tfresult.Minute == 0 && tfresult.Second == 0,
  74             "#%d expected: %d-%d-%d %d:%d:%d  got:  %d-%d-%d %d:%d:%d\n", ++i,
  75             tftest.Year + (tftest.Month ==12),
  76             tftest.Month % 12 + 1, 1, 0, 0, 0,
  77             tfresult.Year, tfresult.Month, tfresult.Day,
  78             tfresult.Hour, tfresult.Minute, tfresult.Second);
  79         /* test the inverse */
  80         pRtlTimeFieldsToTime( &tfresult, &liresult);
  81         ok( liresult.QuadPart == litime.QuadPart," TimeFieldsToTime failed on %d-%d-%d %d:%d:%d. Error is %d ticks\n",
  82             tfresult.Year, tfresult.Month, tfresult.Day,
  83             tfresult.Hour, tfresult.Minute, tfresult.Second,
  84             (int) (liresult.QuadPart - litime.QuadPart) );
  85         /* advance to the end of the month */
  86         litime.QuadPart -=  TICKSPERSEC ;
  87         if( tftest.Month == 12) {
  88             tftest.Month = 1;
  89             tftest.Year += 1;
  90         } else
  91             tftest.Month += 1;
  92         tftest.Day = MonthLengths[IsLeapYear(tftest.Year)][tftest.Month - 1];
  93         litime.QuadPart +=  (LONGLONG) tftest.Day * TICKSPERSEC * SECSPERDAY;
  94     }
  95 }
  96
  97 START_TEST(time)
  98 {
  99     HMODULE mod = GetModuleHandleA("ntdll.dll");
 100     pRtlTimeToTimeFields = (void *)GetProcAddress(mod,"RtlTimeToTimeFields");
 101     pRtlTimeFieldsToTime = (void *)GetProcAddress(mod,"RtlTimeFieldsToTime");
 102     if (pRtlTimeToTimeFields && pRtlTimeFieldsToTime)
 103         test_pRtlTimeToTimeFields();
 104     else
 105         win_skip("Required time conversion functions are not available\n");
 106 }