000001  # 2003 October 31
000002  #
000003  # The author disclaims copyright to this source code.  In place of
000004  # a legal notice, here is a blessing:
000005  #
000006  #    May you do good and not evil.
000007  #    May you find forgiveness for yourself and forgive others.
000008  #    May you share freely, never taking more than you give.
000009  #
000010  #***********************************************************************
000011  # This file implements regression tests for SQLite library.  The
000012  # focus of this file is testing date and time functions.
000013  #
000014  # $Id: date.test,v 1.34 2009/04/16 12:58:03 drh Exp $
000015  
000016  set testdir [file dirname $argv0]
000017  source $testdir/tester.tcl
000018  
000019  # Do not use a codec for tests in this file, as the database file is
000020  # manipulated directly using tcl scripts (using the [hexio_write] command).
000021  #
000022  do_not_use_codec
000023  
000024  # Skip this whole file if date and time functions are omitted
000025  # at compile-time
000026  #
000027  ifcapable {!datetime} {
000028    finish_test
000029    return
000030  }
000031  
000032  proc datetest {tnum expr result} {
000033    do_test date-$tnum [subst {
000034      execsql "SELECT coalesce($expr,'NULL')"
000035    }] [list $result]
000036  }
000037  set tcl_precision 15
000038  datetest 1.1 julianday('2000-01-01') 2451544.5
000039  datetest 1.2 julianday('1970-01-01') 2440587.5
000040  datetest 1.3 julianday('1910-04-20') 2418781.5
000041  datetest 1.4 julianday('1986-02-09') 2446470.5
000042  datetest 1.5 julianday('12:00:00') 2451545.0
000043  datetest 1.6 {julianday('2000-01-01 12:00:00')} 2451545.0
000044  datetest 1.7 {julianday('2000-01-01 12:00')} 2451545.0
000045  datetest 1.8 julianday('bogus') NULL
000046  datetest 1.9 julianday('1999-12-31') 2451543.5
000047  datetest 1.10 julianday('1999-12-32') NULL
000048  datetest 1.11 julianday('1999-13-01') NULL
000049  datetest 1.12 julianday('2003-02-31') 2452701.5
000050  datetest 1.13 julianday('2003-03-03') 2452701.5
000051  datetest 1.14 julianday('+2000-01-01') NULL
000052  datetest 1.15 julianday('200-01-01') NULL
000053  datetest 1.16 julianday('2000-1-01') NULL
000054  datetest 1.17 julianday('2000-01-1') NULL
000055  datetest 1.18.1 {julianday('2000-01-01     12:00:00')} 2451545.0
000056  datetest 1.18.2 {julianday('2000-01-01T12:00:00')} 2451545.0
000057  datetest 1.18.3 {julianday('2000-01-01 T12:00:00')} 2451545.0
000058  datetest 1.18.4 {julianday('2000-01-01T 12:00:00')} 2451545.0
000059  datetest 1.18.4 {julianday('2000-01-01 T 12:00:00')} 2451545.0
000060  datetest 1.19 {julianday('2000-01-01 12:00:00.1')}   2451545.00000116
000061  datetest 1.20 {julianday('2000-01-01 12:00:00.01')}  2451545.00000012
000062  datetest 1.21 {julianday('2000-01-01 12:00:00.001')} 2451545.00000001
000063  datetest 1.22 {julianday('2000-01-01 12:00:00.')} NULL
000064  datetest 1.23 julianday(12345.6) 12345.6
000065  datetest 1.23b julianday(1721059.5) 1721059.5
000066  datetest 1.24 {julianday('2001-01-01 12:00:00 bogus')} NULL
000067  datetest 1.25 {julianday('2001-01-01 bogus')} NULL
000068  datetest 1.26 {julianday('2001-01-01 12:60:00')} NULL
000069  datetest 1.27 {julianday('2001-01-01 12:59:60')} NULL
000070  datetest 1.28 {julianday('2001-00-01')} NULL
000071  datetest 1.29 {julianday('2001-01-00')} NULL
000072  
000073  datetest 2.1 datetime(0,'unixepoch') {1970-01-01 00:00:00}
000074  datetest 2.1b datetime(0,'unixepoc') NULL
000075  datetest 2.1c datetime(0,'unixepochx') NULL
000076  datetest 2.1d datetime('2003-10-22','unixepoch') NULL
000077  datetest 2.2 datetime(946684800,'unixepoch') {2000-01-01 00:00:00}
000078  datetest 2.2b datetime('946684800','unixepoch') {2000-01-01 00:00:00}
000079  for {set i 0} {$i<1000} {incr i} {
000080    set sql [format {strftime('%%H:%%M:%%f',1237962480.%03d,'unixepoch')} $i]
000081    set res [format {06:28:00.%03d} $i]
000082    datetest 2.2c-$i $sql $res
000083  }
000084  datetest 2.3 {date('2003-10-22','weekday 0')} 2003-10-26
000085  datetest 2.4 {date('2003-10-22','weekday 1')} 2003-10-27
000086  datetest 2.4a {date('2003-10-22','weekday  1')} 2003-10-27
000087  datetest 2.4b {date('2003-10-22','weekday  1x')} NULL
000088  datetest 2.4c {date('2003-10-22','weekday  -1')} NULL
000089  datetest 2.4d {date('2003-10-22','weakday  1x')} NULL
000090  datetest 2.4e {date('2003-10-22','weekday ')} NULL
000091  datetest 2.5 {date('2003-10-22','weekday 2')} 2003-10-28
000092  datetest 2.6 {date('2003-10-22','weekday 3')} 2003-10-22
000093  datetest 2.7 {date('2003-10-22','weekday 4')} 2003-10-23
000094  datetest 2.8 {date('2003-10-22','weekday 5')} 2003-10-24
000095  datetest 2.9 {date('2003-10-22','weekday 6')} 2003-10-25
000096  datetest 2.10 {date('2003-10-22','weekday 7')} NULL
000097  datetest 2.11 {date('2003-10-22','weekday 5.5')} NULL
000098  datetest 2.12 {datetime('2003-10-22 12:34','weekday 0')} {2003-10-26 12:34:00}
000099  datetest 2.13 {datetime('2003-10-22 12:34','start of month')} \
000100     {2003-10-01 00:00:00}
000101  datetest 2.14 {datetime('2003-10-22 12:34','start of year')} \
000102     {2003-01-01 00:00:00}
000103  datetest 2.15 {datetime('2003-10-22 12:34','start of day')} \
000104     {2003-10-22 00:00:00}
000105  datetest 2.15a {datetime('2003-10-22 12:34','start of')} NULL
000106  datetest 2.15b {datetime('2003-10-22 12:34','start of bogus')} NULL
000107  datetest 2.16 time('12:34:56.43') 12:34:56
000108  datetest 2.17 {datetime('2003-10-22 12:34','1 day')} {2003-10-23 12:34:00}
000109  datetest 2.18 {datetime('2003-10-22 12:34','+1 day')} {2003-10-23 12:34:00}
000110  datetest 2.19 {datetime('2003-10-22 12:34','+1.25 day')} {2003-10-23 18:34:00}
000111  datetest 2.20 {datetime('2003-10-22 12:34','-1.0 day')} {2003-10-21 12:34:00}
000112  datetest 2.21 {datetime('2003-10-22 12:34','1 month')} {2003-11-22 12:34:00}
000113  datetest 2.22 {datetime('2003-10-22 12:34','11 month')} {2004-09-22 12:34:00}
000114  datetest 2.23 {datetime('2003-10-22 12:34','-13 month')} {2002-09-22 12:34:00}
000115  datetest 2.24 {datetime('2003-10-22 12:34','1.5 months')} {2003-12-07 12:34:00}
000116  datetest 2.25 {datetime('2003-10-22 12:34','-5 years')} {1998-10-22 12:34:00}
000117  datetest 2.26 {datetime('2003-10-22 12:34','+10.5 minutes')} \
000118    {2003-10-22 12:44:30}
000119  datetest 2.27 {datetime('2003-10-22 12:34','-1.25 hours')} \
000120    {2003-10-22 11:19:00}
000121  datetest 2.28 {datetime('2003-10-22 12:34','11.25 seconds')} \
000122    {2003-10-22 12:34:11}
000123  datetest 2.29 {datetime('2003-10-22 12:24','+5 bogus')} NULL
000124  datetest 2.30 {datetime('2003-10-22 12:24','+++')} NULL
000125  datetest 2.31 {datetime('2003-10-22 12:24','+12.3e4 femtoseconds')} NULL
000126  datetest 2.32 {datetime('2003-10-22 12:24','+12.3e4 uS')} NULL
000127  datetest 2.33 {datetime('2003-10-22 12:24','+1 abc')} NULL
000128  datetest 2.34 {datetime('2003-10-22 12:24','+1 abcd')} NULL
000129  datetest 2.35 {datetime('2003-10-22 12:24','+1 abcde')} NULL
000130  datetest 2.36 {datetime('2003-10-22 12:24','+1 abcdef')} NULL
000131  datetest 2.37 {datetime('2003-10-22 12:24','+1 abcdefg')} NULL
000132  datetest 2.38 {datetime('2003-10-22 12:24','+1 abcdefgh')} NULL
000133  datetest 2.39 {datetime('2003-10-22 12:24','+1 abcdefghi')} NULL
000134  set sqlite_current_time 1199243045
000135  datetest 2.40 {datetime()} {2008-01-02 03:04:05}
000136  set sqlite_current_time 0
000137  datetest 2.41 {datetime('2003-10-22 12:24','23 seconds')} {2003-10-22 12:24:23}
000138  datetest 2.42 {datetime('2003-10-22 12:24','345 second')} {2003-10-22 12:29:45}
000139  datetest 2.43 {datetime('2003-10-22 12:24','4 second')} {2003-10-22 12:24:04}
000140  datetest 2.44 {datetime('2003-10-22 12:24','56 second')} {2003-10-22 12:24:56}
000141  datetest 2.45 {datetime('2003-10-22 12:24','60 second')} {2003-10-22 12:25:00}
000142  datetest 2.46 {datetime('2003-10-22 12:24','70 second')} {2003-10-22 12:25:10}
000143  datetest 2.47 {datetime('2003-10-22 12:24','8.6 seconds')} {2003-10-22 12:24:08}
000144  datetest 2.48 {datetime('2003-10-22 12:24','9.4 second')} {2003-10-22 12:24:09}
000145  datetest 2.49 {datetime('2003-10-22 12:24','0000 second')} {2003-10-22 12:24:00}
000146  datetest 2.50 {datetime('2003-10-22 12:24','0001 second')} {2003-10-22 12:24:01}
000147  datetest 2.51 {datetime('2003-10-22 12:24','nonsense')} NULL
000148  
000149  datetest 3.1 {strftime('%d','2003-10-31 12:34:56.432')} 31
000150  datetest 3.2.1 {strftime('pre%fpost','2003-10-31 12:34:56.432')} pre56.432post
000151  datetest 3.2.2 {strftime('%f','2003-10-31 12:34:59.9999999')} 59.999
000152  datetest 3.3 {strftime('%H','2003-10-31 12:34:56.432')} 12
000153  datetest 3.4 {strftime('%j','2003-10-31 12:34:56.432')} 304
000154  datetest 3.5 {strftime('%J','2003-10-31 12:34:56.432')} 2452944.024264259
000155  datetest 3.6 {strftime('%m','2003-10-31 12:34:56.432')} 10
000156  datetest 3.7 {strftime('%M','2003-10-31 12:34:56.432')} 34
000157  datetest 3.8.1 {strftime('%s','2003-10-31 12:34:56.432')} 1067603696
000158  datetest 3.8.2 {strftime('%s','2038-01-19 03:14:07')} 2147483647
000159  datetest 3.8.3 {strftime('%s','2038-01-19 03:14:08')} 2147483648
000160  datetest 3.8.4 {strftime('%s','2201-04-09 12:00:00')} 7298164800
000161  datetest 3.8.5 {strftime('%s','9999-12-31 23:59:59')} 253402300799
000162  datetest 3.8.6 {strftime('%s','1969-12-31 23:59:59')} -1
000163  datetest 3.8.7 {strftime('%s','1901-12-13 20:45:52')} -2147483648
000164  datetest 3.8.8 {strftime('%s','1901-12-13 20:45:51')} -2147483649
000165  datetest 3.8.9 {strftime('%s','1776-07-04 00:00:00')} -6106060800
000166  datetest 3.9 {strftime('%S','2003-10-31 12:34:56.432')} 56
000167  datetest 3.10 {strftime('%w','2003-10-31 12:34:56.432')} 5
000168  datetest 3.11.1 {strftime('%W','2003-10-31 12:34:56.432')} 43
000169  datetest 3.11.2 {strftime('%W','2004-01-01')} 00
000170  datetest 3.11.3 {strftime('%W','2004-01-02')} 00
000171  datetest 3.11.4 {strftime('%W','2004-01-03')} 00
000172  datetest 3.11.5 {strftime('abc%Wxyz','2004-01-04')} abc00xyz
000173  datetest 3.11.6 {strftime('%W','2004-01-05')} 01
000174  datetest 3.11.7 {strftime('%W','2004-01-06')} 01
000175  datetest 3.11.8 {strftime('%W','2004-01-07')} 01
000176  datetest 3.11.9 {strftime('%W','2004-01-08')} 01
000177  datetest 3.11.10 {strftime('%W','2004-01-09')} 01
000178  datetest 3.11.11 {strftime('%W','2004-07-18')} 28
000179  datetest 3.11.12 {strftime('%W','2004-12-31')} 52
000180  datetest 3.11.13 {strftime('%W','2007-12-31')} 53
000181  datetest 3.11.14 {strftime('%W','2007-01-01')} 01
000182  datetest 3.11.15 {strftime('%W %j',2454109.04140970)} {02 008}
000183  datetest 3.11.16 {strftime('%W %j',2454109.04140971)} {02 008}
000184  datetest 3.11.17 {strftime('%W %j',2454109.04140972)} {02 008}
000185  datetest 3.11.18 {strftime('%W %j',2454109.04140973)} {02 008}
000186  datetest 3.11.19 {strftime('%W %j',2454109.04140974)} {02 008}
000187  datetest 3.11.20 {strftime('%W %j',2454109.04140975)} {02 008}
000188  datetest 3.11.21 {strftime('%W %j',2454109.04140976)} {02 008}
000189  datetest 3.11.22 {strftime('%W %j',2454109.04140977)} {02 008}
000190  datetest 3.11.23 {strftime('%W %j',2454109.04140978)} {02 008}
000191  datetest 3.11.24 {strftime('%W %j',2454109.04140979)} {02 008}
000192  datetest 3.11.25 {strftime('%W %j',2454109.04140980)} {02 008}
000193  datetest 3.11.99 {strftime('%W %j','2454109.04140970')} {02 008}
000194  datetest 3.12 {strftime('%Y','2003-10-31 12:34:56.432')} 2003
000195  datetest 3.13 {strftime('%%','2003-10-31 12:34:56.432')} %
000196  datetest 3.14 {strftime('%_','2003-10-31 12:34:56.432')} NULL
000197  datetest 3.15 {strftime('%Y-%m-%d','2003-10-31')} 2003-10-31
000198  proc repeat {n txt} {
000199    set x {} 
000200    while {$n>0} {
000201      append x $txt
000202      incr n -1
000203    }
000204    return $x
000205  }
000206  datetest 3.16 "strftime('[repeat 200 %Y]','2003-10-31')" [repeat 200 2003]
000207  datetest 3.17 "strftime('[repeat 200 abc%m123]','2003-10-31')" \
000208      [repeat 200 abc10123]
000209  
000210  foreach c {a b c e g h i k l n o p q r t v x y z
000211             A B C D E F G I K L N O P Q R T U V Z
000212             0 1 2 3 4 5 6 6 7 9 _} {
000213    datetest 3.18.$c "strftime('%$c','2003-10-31')" NULL
000214  }
000215  
000216  # Ticket #2276.  Make sure leading zeros are inserted where appropriate.
000217  #
000218  datetest 3.20 \
000219     {strftime('%d/%f/%H/%W/%j/%m/%M/%S/%Y','0421-01-02 03:04:05.006')} \
000220     02/05.006/03/00/002/01/04/05/0421
000221  
000222  set sqlite_current_time 1157124367
000223  datetest 4.1 {date('now')} {2006-09-01}
000224  set sqlite_current_time 0
000225  
000226  datetest 5.1 {datetime('1994-04-16 14:00:00 +05:00')} {1994-04-16 09:00:00}
000227  datetest 5.2 {datetime('1994-04-16 14:00:00 -05:15')} {1994-04-16 19:15:00}
000228  datetest 5.3 {datetime('1994-04-16 05:00:00 +08:30')} {1994-04-15 20:30:00}
000229  datetest 5.4 {datetime('1994-04-16 14:00:00 -11:55')} {1994-04-17 01:55:00}
000230  datetest 5.5 {datetime('1994-04-16 14:00:00 -11:60')} NULL
000231  datetest 5.6 {datetime('1994-04-16 14:00:00 -11:55  ')} {1994-04-17 01:55:00}
000232  datetest 5.7 {datetime('1994-04-16 14:00:00 -11:55 x')} NULL
000233  datetest 5.8 {datetime('1994-04-16T14:00:00Z')} {1994-04-16 14:00:00}
000234  datetest 5.9 {datetime('1994-04-16 14:00:00z')} {1994-04-16 14:00:00}
000235  datetest 5.10 {datetime('1994-04-16 14:00:00 Z')} {1994-04-16 14:00:00}
000236  datetest 5.11 {datetime('1994-04-16 14:00:00z    ')} {1994-04-16 14:00:00}
000237  datetest 5.12 {datetime('1994-04-16 14:00:00     z    ')} {1994-04-16 14:00:00}
000238  datetest 5.13 {datetime('1994-04-16 14:00:00Zulu')} NULL
000239  datetest 5.14 {datetime('1994-04-16 14:00:00Z +05:00')} NULL
000240  datetest 5.15 {datetime('1994-04-16 14:00:00 +05:00 Z')} NULL
000241  
000242  # localtime->utc and utc->localtime conversions.  These tests only work
000243  # if the localtime is in the US Eastern Time (the time in Charlotte, NC
000244  # and in New York.)
000245  #
000246  # On non-Vista Windows platform, '2006-03-31' is treated incorrectly as being
000247  # in DST giving a 4 hour offset instead of 5.  In 2007, DST was extended to 
000248  # start three weeks earlier (second Sunday in March) and end one week
000249  # later (first Sunday in November).  Older Windows systems apply this
000250  # new rule incorrectly to dates prior to 2007.
000251  #
000252  # It might be argued that this is masking a problem on non-Vista Windows
000253  # platform.  A ticket has already been opened for this issue 
000254  # (http://www.sqlite.org/cvstrac/tktview?tn=2322).  This is just to prevent
000255  # more confusion/reports of the issue.
000256  #
000257  
000258  # $tzoffset_old should be 5 if DST is working correctly.
000259  set tzoffset_old [db one {
000260    SELECT CAST(24*(julianday('2006-03-31') -
000261                    julianday('2006-03-31','localtime'))+0.5
000262                AS INT)
000263  }]
000264  
000265  # $tzoffset_new should be 4 if DST is working correctly.
000266  set tzoffset_new [db one {
000267    SELECT CAST(24*(julianday('2007-03-31') -
000268                    julianday('2007-03-31','localtime'))+0.5
000269                AS INT)
000270  }]
000271  
000272  # Warn about possibly broken Windows DST implementations.
000273  if {$::tcl_platform(platform)=="windows" && $tzoffset_new==4 && $tzoffset_old==4} {
000274    puts "******************************************************************"
000275    puts "N.B.:  The DST support provided by your current O/S seems to be"
000276    puts "suspect in that it is reporting incorrect DST values for dates"
000277    puts "prior to 2007.  This is the known case for most (all?) non-Vista"
000278    puts "Windows versions.  Please see ticket #2322 for more information."
000279    puts "******************************************************************"
000280  }
000281  
000282  if {$tzoffset_new==4} {
000283    datetest 6.1 {datetime('2000-10-29 05:59:00','localtime')}\
000284        {2000-10-29 01:59:00}
000285    datetest 6.1.1 {datetime('2006-10-29 05:59:00','localtime')}\
000286        {2006-10-29 01:59:00}
000287    datetest 6.1.2 {datetime('2007-11-04 05:59:00','localtime')}\
000288        {2007-11-04 01:59:00}
000289  
000290    # If the new and old DST rules seem to be working correctly...
000291    if {$tzoffset_new==4 && $tzoffset_old==5} {
000292      datetest 6.2 {datetime('2000-10-29 06:00:00','localtime')}\
000293          {2000-10-29 01:00:00}
000294      datetest 6.2.1 {datetime('2006-10-29 06:00:00','localtime')}\
000295          {2006-10-29 01:00:00}
000296    }
000297    datetest 6.2.2 {datetime('2007-11-04 06:00:00','localtime')}\
000298        {2007-11-04 01:00:00}
000299  
000300    # If the new and old DST rules seem to be working correctly...
000301    if {$tzoffset_new==4 && $tzoffset_old==5} {
000302      datetest 6.3 {datetime('2000-04-02 06:59:00','localtime')}\
000303          {2000-04-02 01:59:00}
000304      datetest 6.3.1 {datetime('2006-04-02 06:59:00','localtime')}\
000305          {2006-04-02 01:59:00}
000306    }
000307    datetest 6.3.2 {datetime('2007-03-11 07:00:00','localtime')}\
000308        {2007-03-11 03:00:00}
000309  
000310    datetest 6.4 {datetime('2000-04-02 07:00:00','localtime')}\
000311        {2000-04-02 03:00:00}
000312    datetest 6.4.1 {datetime('2006-04-02 07:00:00','localtime')}\
000313        {2006-04-02 03:00:00}
000314    datetest 6.4.2 {datetime('2007-03-11 07:00:00','localtime')}\
000315        {2007-03-11 03:00:00}
000316        
000317    datetest 6.5 {datetime('2000-10-29 01:59:00','utc')} {2000-10-29 05:59:00}
000318    datetest 6.5.1 {datetime('2006-10-29 01:59:00','utc')} {2006-10-29 05:59:00}
000319    datetest 6.5.2 {datetime('2007-11-04 01:59:00','utc')} {2007-11-04 05:59:00}
000320  
000321    # If the new and old DST rules seem to be working correctly...
000322    if {$tzoffset_new==4 && $tzoffset_old==5} {
000323      datetest 6.6 {datetime('2000-10-29 02:00:00','utc')} {2000-10-29 07:00:00}
000324      datetest 6.6.1 {datetime('2006-10-29 02:00:00','utc')} {2006-10-29 07:00:00}
000325    }
000326    datetest 6.6.2 {datetime('2007-11-04 02:00:00','utc')} {2007-11-04 07:00:00}
000327  
000328    # If the new and old DST rules seem to be working correctly...
000329    if {$tzoffset_new==4 && $tzoffset_old==5} {
000330      datetest 6.7 {datetime('2000-04-02 01:59:00','utc')} {2000-04-02 06:59:00}
000331      datetest 6.7.1 {datetime('2006-04-02 01:59:00','utc')} {2006-04-02 06:59:00}
000332    }
000333    datetest 6.7.2 {datetime('2007-03-11 01:59:00','utc')} {2007-03-11 06:59:00}
000334  
000335    datetest 6.8 {datetime('2000-04-02 02:00:00','utc')} {2000-04-02 06:00:00}
000336    datetest 6.8.1 {datetime('2006-04-02 02:00:00','utc')} {2006-04-02 06:00:00}
000337    datetest 6.8.2 {datetime('2007-03-11 02:00:00','utc')} {2007-03-11 06:00:00}
000338  
000339    # The 'utc' modifier is a no-op if the LHS is known to already be in UTC
000340    datetest 6.9.1 {datetime('2015-12-23 12:00:00','utc')} {2015-12-23 17:00:00}
000341    datetest 6.9.2 {datetime('2015-12-23 12:00:00z','utc')} {2015-12-23 12:00:00}
000342    datetest 6.9.3 {datetime('2015-12-23 12:00:00-03:00','utc')} \
000343           {2015-12-23 15:00:00}
000344    datetest 6.9.4 {datetime('2015-12-23 12:00:00','utc','utc','utc')} \
000345           {2015-12-23 17:00:00}
000346  
000347  
000348    datetest 6.10 {datetime('2000-01-01 12:00:00','localtime')} \
000349        {2000-01-01 07:00:00}
000350    datetest 6.11 {datetime('1969-01-01 12:00:00','localtime')} \
000351        {1969-01-01 07:00:00}
000352    datetest 6.12 {datetime('2039-01-01 12:00:00','localtime')} \
000353        {2039-01-01 07:00:00}
000354    datetest 6.13 {datetime('2000-07-01 12:00:00','localtime')} \
000355        {2000-07-01 08:00:00}
000356    datetest 6.14 {datetime('1969-07-01 12:00:00','localtime')} \
000357        {1969-07-01 07:00:00}
000358    datetest 6.15 {datetime('2039-07-01 12:00:00','localtime')} \
000359        {2039-07-01 07:00:00}
000360    set sqlite_current_time \
000361       [db eval {SELECT strftime('%s','2000-07-01 12:34:56')}]
000362    datetest 6.16 {datetime('now','localtime')} {2000-07-01 08:34:56}
000363    datetest 6.17 {datetime('now','localtimex')} NULL
000364    datetest 6.18 {datetime('now','localtim')} NULL
000365    set sqlite_current_time 0
000366  }
000367  
000368  # These two are a bit of a scam. They are added to ensure that 100% of
000369  # the date.c file is covered by testing, even when the time-zone
000370  # is not -0400 (the condition for running of the block of tests above).
000371  #
000372  datetest 6.19 {datetime('2039-07-01 12:00:00','localtime',null)} NULL
000373  datetest 6.20 {datetime('2039-07-01 12:00:00','utc',null)} NULL
000374  
000375  # Date-time functions that contain NULL arguments return a NULL
000376  # result.
000377  #
000378  datetest 7.1 {datetime(null)} NULL
000379  datetest 7.2 {datetime('now',null)} NULL
000380  datetest 7.3 {datetime('now','localtime',null)} NULL
000381  datetest 7.4 {time(null)} NULL
000382  datetest 7.5 {time('now',null)} NULL
000383  datetest 7.6 {time('now','localtime',null)} NULL
000384  datetest 7.7 {date(null)} NULL
000385  datetest 7.8 {date('now',null)} NULL
000386  datetest 7.9 {date('now','localtime',null)} NULL
000387  datetest 7.10 {julianday(null)} NULL
000388  datetest 7.11 {julianday('now',null)} NULL
000389  datetest 7.12 {julianday('now','localtime',null)} NULL
000390  datetest 7.13 {strftime(null,'now')} NULL
000391  datetest 7.14 {strftime('%s',null)} NULL
000392  datetest 7.15 {strftime('%s','now',null)} NULL
000393  datetest 7.16 {strftime('%s','now','localtime',null)} NULL
000394  
000395  # Test modifiers when the date begins as a julian day number - to
000396  # make sure the HH:MM:SS is preserved.  Ticket #551.
000397  #
000398  set sqlite_current_time [db eval {SELECT strftime('%s','2003-10-22 12:34:00')}]
000399  datetest 8.1 {datetime('now','weekday 0')} {2003-10-26 12:34:00}
000400  datetest 8.2 {datetime('now','weekday 1')} {2003-10-27 12:34:00}
000401  datetest 8.3 {datetime('now','weekday 2')} {2003-10-28 12:34:00}
000402  datetest 8.4 {datetime('now','weekday 3')} {2003-10-22 12:34:00}
000403  datetest 8.5 {datetime('now','start of month')} {2003-10-01 00:00:00}
000404  datetest 8.6 {datetime('now','start of year')} {2003-01-01 00:00:00}
000405  datetest 8.7 {datetime('now','start of day')} {2003-10-22 00:00:00}
000406  datetest 8.8 {datetime('now','1 day')} {2003-10-23 12:34:00}
000407  datetest 8.9 {datetime('now','+1 day')} {2003-10-23 12:34:00}
000408  datetest 8.10 {datetime('now','+1.25 day')} {2003-10-23 18:34:00}
000409  datetest 8.11 {datetime('now','-1.0 day')} {2003-10-21 12:34:00}
000410  datetest 8.12 {datetime('now','1 month')} {2003-11-22 12:34:00}
000411  datetest 8.13 {datetime('now','11 month')} {2004-09-22 12:34:00}
000412  datetest 8.14 {datetime('now','-13 month')} {2002-09-22 12:34:00}
000413  datetest 8.15 {datetime('now','1.5 months')} {2003-12-07 12:34:00}
000414  datetest 8.16 {datetime('now','-5 years')} {1998-10-22 12:34:00}
000415  datetest 8.17 {datetime('now','+10.5 minutes')} {2003-10-22 12:44:30}
000416  datetest 8.18 {datetime('now','-1.25 hours')} {2003-10-22 11:19:00}
000417  datetest 8.19 {datetime('now','11.25 seconds')} {2003-10-22 12:34:11}
000418  datetest 8.90 {datetime('now','abcdefghijklmnopqrstuvwyxzABCDEFGHIJLMNOP')} NULL
000419  set sqlite_current_time 0
000420  
000421  # Negative years work.  Example:  '-4713-11-26' is JD 1.5.
000422  #
000423  datetest 9.1 {julianday('-4713-11-24 12:00:00')} {0.0}
000424  datetest 9.2 {julianday(datetime(5))} {5.0}
000425  datetest 9.3 {julianday(datetime(10))} {10.0}
000426  datetest 9.4 {julianday(datetime(100))} {100.0}
000427  datetest 9.5 {julianday(datetime(1000))} {1000.0}
000428  datetest 9.6 {julianday(datetime(10000))} {10000.0}
000429  datetest 9.7 {julianday(datetime(100000))} {100000.0}
000430  
000431  # datetime() with just an HH:MM:SS correctly inserts the date 2000-01-01.
000432  #
000433  datetest 10.1 {datetime('01:02:03')}  {2000-01-01 01:02:03}
000434  datetest 10.2 {date('01:02:03')}  {2000-01-01}
000435  datetest 10.3 {strftime('%Y-%m-%d %H:%M','01:02:03')} {2000-01-01 01:02}
000436  
000437  # Test the new HH:MM:SS modifier
000438  #
000439  datetest 11.1 {datetime('2004-02-28 20:00:00', '-01:20:30')} \
000440     {2004-02-28 18:39:30}
000441  datetest 11.2 {datetime('2004-02-28 20:00:00', '+12:30:00')} \
000442     {2004-02-29 08:30:00}
000443  datetest 11.3 {datetime('2004-02-28 20:00:00', '+12:30')} \
000444     {2004-02-29 08:30:00}
000445  datetest 11.4 {datetime('2004-02-28 20:00:00', '12:30')} \
000446     {2004-02-29 08:30:00}
000447  datetest 11.5 {datetime('2004-02-28 20:00:00', '-12:00')} \
000448     {2004-02-28 08:00:00}
000449  datetest 11.6 {datetime('2004-02-28 20:00:00', '-12:01')} \
000450     {2004-02-28 07:59:00}
000451  datetest 11.7 {datetime('2004-02-28 20:00:00', '-11:59')} \
000452     {2004-02-28 08:01:00}
000453  datetest 11.8 {datetime('2004-02-28 20:00:00', '11:59')} \
000454     {2004-02-29 07:59:00}
000455  datetest 11.9 {datetime('2004-02-28 20:00:00', '12:01')} \
000456     {2004-02-29 08:01:00}
000457  datetest 11.10 {datetime('2004-02-28 20:00:00', '12:60')} NULL
000458  
000459  # Ticket #1964
000460  datetest 12.1 {datetime('2005-09-01')} {2005-09-01 00:00:00}
000461  datetest 12.2 {datetime('2005-09-01','+0 hours')} {2005-09-01 00:00:00}
000462  
000463  # Ticket #1991
000464  do_test date-13.1 {
000465    execsql {
000466      SELECT strftime('%Y-%m-%d %H:%M:%f', julianday('2006-09-24T10:50:26.047'))
000467    }
000468  } {{2006-09-24 10:50:26.047}}
000469  
000470  # Ticket #2153
000471  datetest 13.2 {strftime('%Y-%m-%d %H:%M:%S', '2007-01-01 12:34:59.6')} \
000472    {2007-01-01 12:34:59}
000473  datetest 13.3 {strftime('%Y-%m-%d %H:%M:%f', '2007-01-01 12:34:59.6')} \
000474    {2007-01-01 12:34:59.600}
000475  datetest 13.4 {strftime('%Y-%m-%d %H:%M:%S', '2007-01-01 12:59:59.6')} \
000476    {2007-01-01 12:59:59}
000477  datetest 13.5 {strftime('%Y-%m-%d %H:%M:%f', '2007-01-01 12:59:59.6')} \
000478    {2007-01-01 12:59:59.600}
000479  datetest 13.6 {strftime('%Y-%m-%d %H:%M:%S', '2007-01-01 23:59:59.6')} \
000480    {2007-01-01 23:59:59}
000481  datetest 13.7 {strftime('%Y-%m-%d %H:%M:%f', '2007-01-01 23:59:59.6')} \
000482    {2007-01-01 23:59:59.600}
000483  
000484  # Ticket #3618
000485  datetest 13.11 {julianday(2454832.5,'-1 day')} {2454831.5}
000486  datetest 13.12 {julianday(2454832.5,'+1 day')} {2454833.5}
000487  datetest 13.13 {julianday(2454832.5,'-1.5 day')} {2454831.0}
000488  datetest 13.14 {julianday(2454832.5,'+1.5 day')} {2454834.0}
000489  datetest 13.15 {julianday(2454832.5,'-3 hours')} {2454832.375}
000490  datetest 13.16 {julianday(2454832.5,'+3 hours')} {2454832.625}
000491  datetest 13.17 {julianday(2454832.5,'-45 minutes')} {2454832.46875}
000492  datetest 13.18 {julianday(2454832.5,'+45 minutes')} {2454832.53125}
000493  datetest 13.19 {julianday(2454832.5,'-675 seconds')} {2454832.4921875}
000494  datetest 13.20 {julianday(2454832.5,'+675 seconds')} {2454832.5078125}
000495  datetest 13.21 {julianday(2454832.5,'-1.5 months')} {2454786.5}
000496  datetest 13.22 {julianday(2454832.5,'+1.5 months')} {2454878.5}
000497  datetest 13.23 {julianday(2454832.5,'-1.5 years')} {2454284.0}
000498  datetest 13.24 {julianday(2454832.5,'+1.5 years')} {2455380.0}
000499  
000500  datetest 13.30 {date('2000-01-01','+1.5 years')} {2001-07-02}
000501  datetest 13.31 {date('2001-01-01','+1.5 years')} {2002-07-02}
000502  datetest 13.32 {date('2002-01-01','+1.5 years')} {2003-07-02}
000503  datetest 13.33 {date('2002-01-01','-1.5 years')} {2000-07-02}
000504  datetest 13.34 {date('2001-01-01','-1.5 years')} {1999-07-02}
000505  
000506  # Test for issues reported by BareFeet (list.sql at tandb.com.au)
000507  # on mailing list on 2008-06-12.
000508  #
000509  # Put a floating point number in the database so that we can manipulate
000510  # raw bits using the hexio interface.
000511  #
000512  if {0==[sqlite3 -has-codec]} {
000513    do_test date-14.1 {
000514      execsql {
000515        PRAGMA auto_vacuum=OFF;
000516        PRAGMA page_size = 1024;
000517        CREATE TABLE t1(x);
000518        INSERT INTO t1 VALUES(1.1);
000519      }
000520      db close
000521      hexio_write test.db 2040 4142ba32bffffff9
000522      sqlite3 db test.db
000523      db eval {SELECT * FROM t1}
000524    } {2454629.5}
000525    
000526    # Changing the least significant byte of the floating point value between
000527    # 00 and FF should always generate a time of either 23:59:59 or 00:00:00,
000528    # never 24:00:00
000529    #
000530    for {set i 0} {$i<=255} {incr i} {
000531      db close
000532      hexio_write test.db 2047 [format %02x $i]
000533      sqlite3 db test.db
000534      do_test date-14.2.$i {
000535        set date [db one {SELECT datetime(x) FROM t1}]
000536        expr {$date eq "2008-06-12 00:00:00" || $date eq "2008-06-11 23:59:59"}
000537      } {1}
000538    }
000539  }
000540  
000541  # Verify that multiple calls to date functions with 'now' return the
000542  # same answer.
000543  #
000544  # EVIDENCE-OF: R-34818-13664 The 'now' argument to date and time
000545  # functions always returns exactly the same value for multiple
000546  # invocations within the same sqlite3_step() call.
000547  #
000548  proc sleeper {} {after 100}
000549  do_test date-15.1 {
000550    db func sleeper sleeper
000551    db eval {
000552       SELECT c - a FROM (SELECT julianday('now') AS a,
000553                                 sleeper(), julianday('now') AS c);
000554    }
000555  } {0.0}
000556  do_test date-15.2 {
000557    db eval {
000558       SELECT a==b FROM (SELECT current_timestamp AS a,
000559                                 sleeper(), current_timestamp AS b);
000560    }
000561  } {1}
000562  
000563  # Tests of extreme values in date/time functions.  Run with UBSan or the
000564  # equivalent to verify no signed interger overflow warnings.
000565  #
000566  datetest 16.1 {date(147483649)} NULL
000567  datetest 16.2 {datetime(0)} {-4713-11-24 12:00:00}
000568  datetest 16.3 {datetime(5373484.49999999)} {9999-12-31 23:59:59}
000569  datetest 16.4 {julianday('-4713-11-24 12:00:00')} 0.0
000570  datetest 16.5 {julianday('9999-12-31 23:59:59.999')} 5373484.49999999
000571  datetest 16.6 {datetime(0,'+464269060799 seconds')} {9999-12-31 23:59:59}
000572  datetest 16.7 {datetime(0,'+464269060800 seconds')} NULL
000573  datetest 16.8 {datetime(0,'+7737817679 minutes')} {9999-12-31 23:59:00}
000574  datetest 16.9 {datetime(0,'+7737817680 minutes')} NULL
000575  datetest 16.10 {datetime(0,'+128963627 hours')} {9999-12-31 23:00:00}
000576  datetest 16.11 {datetime(0,'+128963628 hours')} NULL
000577  datetest 16.12 {datetime(0,'+5373484 days')} {9999-12-31 12:00:00}
000578  datetest 16.13 {datetime(0,'+5373485 days')} NULL
000579  datetest 16.14 {datetime(0,'+176545 months')} {9999-12-24 12:00:00}
000580  datetest 16.15 {datetime(0,'+176546 months')} NULL
000581  datetest 16.16 {datetime(0,'+14712 years')} {9999-11-24 12:00:00}
000582  datetest 16.17 {datetime(0,'+14713 years')} NULL
000583  datetest 16.20 {datetime(5373484.4999999,'-464269060799 seconds')} \
000584                  {-4713-11-24 12:00:00}
000585  datetest 16.21 {datetime(5373484,'-464269060800 seconds')} NULL
000586  datetest 16.22 {datetime(5373484.4999999,'-7737817679 minutes')} \
000587                 {-4713-11-24 12:00:59}
000588  datetest 16.23 {datetime(5373484,'-7737817680 minutes')} NULL
000589  datetest 16.24 {datetime(5373484.4999999,'-128963627 hours')} \
000590                 {-4713-11-24 12:59:59}
000591  datetest 16.25 {datetime(5373484,'-128963628 hours')} NULL
000592  datetest 16.26 {datetime(5373484,'-5373484 days')} {-4713-11-24 12:00:00}
000593  datetest 16.27 {datetime(5373484,'-5373485 days')} NULL
000594  datetest 16.28 {datetime(5373484,'-176545 months')} {-4713-12-01 12:00:00}
000595  datetest 16.29 {datetime(5373484,'-176546 months')} NULL
000596  datetest 16.30 {datetime(5373484,'-14712 years')} {-4713-12-31 12:00:00}
000597  datetest 16.31 {datetime(5373484,'-14713 years')} NULL
000598  
000599  # 2017-03-02: Wrong 'start of day' computation.
000600  # https://www.sqlite.org/src/info/6097cb92745327a1
000601  #
000602  datetest 17.1 {datetime(2457754, 'start of day')} {2016-12-31 00:00:00}
000603  datetest 17.2 {datetime(2457828)} {2017-03-15 12:00:00}
000604  datetest 17.3 {datetime(2457828,'start of day')} {2017-03-15 00:00:00}
000605  datetest 17.4 {datetime(2457828,'start of month')} {2017-03-01 00:00:00}
000606  datetest 17.5 {datetime(2457828,'start of year')} {2017-01-01 00:00:00}
000607  datetest 17.6 {datetime(37,'start of year')} NULL
000608  datetest 17.7 {datetime(38,'start of year')} {-4712-01-01 00:00:00}
000609  
000610  
000611  
000612  finish_test