3 # The author disclaims copyright to this source code. In place of
4 # a legal notice, here is a blessing:
6 # May you do good and not evil.
7 # May you find forgiveness for yourself and forgive others.
8 # May you share freely, never taking more than you give.
10 #***********************************************************************
11 # This file implements regression tests for SQLite library. The
12 # focus of this file is testing date and time functions.
15 set testdir [file dirname $argv0]
16 source $testdir/tester.tcl
18 # Skip this whole file if date and time functions are omitted
21 ifcapable {!datetime} {
26 proc datetest {tnum expr result} {
27 do_test date3-$tnum [subst {
28 execsql "SELECT coalesce($expr,'NULL')"
33 # EVIDENCE-OF: R-45708-63005 unixepoch(time-value, modifier, modifier,
36 datetest 1.1 {unixepoch('1970-01-01')} {0}
37 datetest 1.2 {unixepoch('1969-12-31 23:59:59')} {-1}
38 datetest 1.3 {unixepoch('2106-02-07 06:28:15')} {4294967295}
39 datetest 1.4 {unixepoch('2106-02-07 06:28:16')} {4294967296}
40 datetest 1.5 {unixepoch('9999-12-31 23:59:59')} {253402300799}
41 datetest 1.6 {unixepoch('0000-01-01 00:00:00')} {-62167219200}
43 # EVIDENCE-OF: R-30877-63179 The unixepoch() function returns a unix
44 # timestamp - the number of seconds since 1970-01-01 00:00:00 UTC.
46 for {set i 1} {$i<=100} {incr i} {
47 set x [expr {int(rand()*0xfffffffff)-0xffffffff}]
48 datetest 1.7.$i "unixepoch($x,'unixepoch')==$x" {1}
51 # EVIDENCE-OF: R-62992-54137 The unixepoch() always returns an integer,
52 # even if the input time-value has millisecond precision.
54 datetest 1.8 {unixepoch('2022-01-27 12:59:28.052')} {1643288368}
56 # EVIDENCE-OF: R-05412-24332 If the time-value is numeric (the
57 # DDDDDDDDDD format) then the 'auto' modifier causes the time-value to
58 # interpreted as either a julian day number or a unix timestamp,
59 # depending on its magnitude.
61 # EVIDENCE-OF: R-56763-40111 If the value is between 0.0 and
62 # 5373484.499999, then it is interpreted as a julian day number
63 # (corresponding to dates between -4713-11-24 12:00:00 and 9999-12-31
64 # 23:59:59, inclusive).
66 # EVIDENCE-OF: R-07289-49223 For numeric values outside of the range of
67 # valid julian day numbers, but within the range of -210866760000 to
68 # 253402300799, the 'auto' modifier causes the value to be interpreted
69 # as a unix timestamp.
71 # EVIDENCE-OF: R-20795-34947 Other numeric values are out of range and
72 # cause a NULL return.
74 foreach {tn jd date} {
75 2.1 0.0 {-4713-11-24 12:00:00}
76 2.2 5373484.4999999 {9999-12-31 23:59:59}
77 2.3 2440587.5 {1970-01-01 00:00:00}
78 2.4 2440587.49998843 {1969-12-31 23:59:59}
79 2.5 2440615.7475463 {1970-01-29 05:56:28}
81 2.10 -1 {1969-12-31 23:59:59}
82 2.11 5373485 {1970-03-04 04:38:05}
83 2.12 -210866760000 {-4713-11-24 12:00:00}
84 2.13 253402300799 {9999-12-31 23:59:59}
86 2.20 -210866760001 {NULL}
87 2.21 253402300800 {NULL}
89 datetest $tn "datetime($jd,'auto')" $date
92 # EVIDENCE-OF: R-38886-35357 The 'auto' modifier is a no-op for text
95 datetest 2.30 {date('2022-01-29','auto')==date('2022-01-29')} {1}
97 # EVIDENCE-OF: R-53132-26856 The 'auto' modifier can be used to work
98 # with date/time values even in cases where it is not known if the
99 # julian day number or unix timestamp formats are in use.
101 do_execsql_test date3-2.40 {
102 WITH tx(timeval,datetime) AS (
103 VALUES('2022-01-27 13:15:44','2022-01-27 13:15:44'),
104 (2459607.05260275,'2022-01-27 13:15:44'),
105 (1643289344,'2022-01-27 13:15:44')
107 SELECT datetime(timeval,'auto') == datetime FROM tx;
110 # EVIDENCE-OF: R-49255-55373 The "unixepoch" modifier (11) only works if
111 # it immediately follows a time value in the DDDDDDDDDD format.
113 # EVIDENCE-OF: R-23075-39245 This modifier causes the DDDDDDDDDD to be
114 # interpreted not as a Julian day number as it normally would be, but as
115 # Unix Time - the number of seconds since 1970.
117 datetest 3.1 {datetime(2459607.05,'+1 hour','unixepoch')} {NULL}
118 datetest 3.2 {datetime(2459607.05,'unixepoch','+1 hour')} {1970-01-29 12:13:27}
120 # EVIDENCE-OF: R-21150-52363 The "julianday" modifier must immediately
121 # follow the initial time-value which must be of the form DDDDDDDDD.
123 # EVIDENCE-OF: R-31176-64601 Any other use of the 'julianday' modifier
124 # is an error and causes the function to return NULL.
126 # EVIDENCE-OF: R-32483-36353 The 'julianday' modifier forces the
127 # time-value number to be interpreted as a julian-day number.
129 # EVIDENCE-OF: R-25859-20124 The only difference is that adding
130 # 'julianday' forces the DDDDDDDDD time-value format, and causes a NULL
131 # to be returned if any other time-value format is used.
133 datetest 4.1 {datetime(2459607,'julianday')} {2022-01-27 12:00:00}
134 datetest 4.2 {datetime(2459607,'+1 hour','julianday')} {NULL}
135 datetest 4.3 {datetime('2022-01-27','julianday')} {NULL}
139 # EVIDENCE-OF: R-33431-18865 Unix timestamps for the first 63 days of
140 # 1970 will be interpreted as julian day numbers.
142 do_execsql_test date3-5.0 {
143 WITH inc(x) AS (VALUES(-10) UNION ALL SELECT x+1 FROM inc WHERE x<100)
144 SELECT count(*) FROM inc
145 WHERE datetime('1970-01-01',format('%+d days',x))
146 <> datetime(unixepoch('1970-01-01',format('%+d days',x)),'auto');