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sqlite/test/timediff1.test
drh d34ce81867 Extended the time-diff format so that it can have a 5-digit year. This enables
time differences to span the full range of dates supported by SQLite.  Also
fix some inaccuracies in the computation of time differences and add new
test cases.

FossilOrigin-Name: d57ddbf4eeeb3ccfe31871f098045b9e58634153a3c3030f597cb58c1177218a
2023-06-13 16:55:24 +00:00

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# 2023-05-30
#
# The author disclaims copyright to this source code. In place of
# a legal notice, here is a blessing:
#
# May you do good and not evil.
# May you find forgiveness for yourself and forgive others.
# May you share freely, never taking more than you give.
#
#***********************************************************************
# This file implements regression tests for SQLite library. The
# focus of this file is testing date and time functions.
#
set testdir [file dirname $argv0]
source $testdir/tester.tcl
# Skip this whole file if date and time functions are omitted
# at compile-time
#
ifcapable {!datetime} {
finish_test
return
}
proc datetest {tnum expr result} {
do_test timediff-$tnum [subst {
execsql "SELECT coalesce($expr,'NULL')"
}] [list $result]
}
set tcl_precision 15
# February overflow on a leap year
datetest 1.1 {datetime('2000-01-31','+1 month')} {2000-03-02 00:00:00}
datetest 1.2 {datetime('2004-01-29','+1 month')} {2004-02-29 00:00:00}
datetest 1.3 {datetime('2000-03-01','-1 day')} {2000-02-29 00:00:00}
datetest 1.4 {datetime('2000-03-31','-1 month')} {2000-03-02 00:00:00}
datetest 1.5 {datetime('2000-03-30','-1 month')} {2000-03-01 00:00:00}
datetest 1.6 {datetime('2000-03-29','-1 month')} {2000-02-29 00:00:00}
datetest 1.7 {datetime('2000-03-28','-1 month')} {2000-02-28 00:00:00}
datetest 1.8 {datetime('2000-02-29','+1 year')} {2001-03-01 00:00:00}
datetest 1.9 {datetime('2000-02-29','+4 years')} {2004-02-29 00:00:00}
datetest 1.10 {datetime('1998-11-10','+0001-03-19 12:34:56')} \
{2000-02-29 12:34:56}
datetest 1.11 {datetime('2000-01-31','+0004-01-00 12:34:56')} \
{2004-03-02 12:34:56}
datetest 1.12 {datetime('2000-01-29','+0008-01-00 12:34:56')} \
{2008-02-29 12:34:56}
datetest 1.13 {datetime('2001-03-31','-0001-01-00 06:10')} \
{2000-03-01 17:50:00}
# February overflow on a non-leap year
datetest 2.1 {datetime('2001-01-31','+1 month')} {2001-03-03 00:00:00}
datetest 2.2 {datetime('2005-01-29','+1 month')} {2005-03-01 00:00:00}
datetest 2.3 {datetime('2001-03-01','-1 day')} {2001-02-28 00:00:00}
datetest 2.4 {datetime('2001-03-31','-1 month')} {2001-03-03 00:00:00}
datetest 2.5 {datetime('2001-03-30','-1 month')} {2001-03-02 00:00:00}
datetest 2.6 {datetime('2001-03-29','-1 month')} {2001-03-01 00:00:00}
datetest 2.7 {datetime('2001-03-28','-1 month')} {2001-02-28 00:00:00}
datetest 2.10 {datetime('1999-11-10','+0001-03-19 12:34:56')} \
{2001-03-01 12:34:56}
datetest 2.11 {datetime('2000-01-31','+0005-01-00 12:34:56')} \
{2005-03-03 12:34:56}
datetest 2.12 {datetime('2000-01-29','+0009-01-00 12:34:56')} \
{2009-03-01 12:34:56}
datetest 2.13 {datetime('2002-03-31','-0001-01-00 06:10')} \
{2001-03-02 17:50:00}
# timediff
datetest 3.1 {timediff('2000-03-02','2000-01-31')} {+0000-01-00 00:00:00.000}
datetest 3.2 {timediff('2000-01-31','2000-03-02')} {-0000-01-02 00:00:00.000}
datetest 3.3 {timediff('2000-03-02','1999-01-31')} {+0001-01-00 00:00:00.000}
datetest 3.4 {timediff('1999-01-31','2000-03-02')} {-0001-01-02 00:00:00.000}
unset -nocomplain p1
unset -nocomplain p2
set p1 {
0 {-4713-11-24 12:00:00}
1 {-2000-04-30 05:19:26}
2 {0000-01-01 12:34:56}
3 {1776-07-04 13:00:00}
4 {1969-07-20 20:17}
5 {2440587.5}
6 {2000-05-29 14:26}
7 {2023-05-29 18:11}
8 {2050-05-29 14:26}
9 {4796-02-29 11:23:55.46}
}
set p2 {
A {1066-10-14}
B {1900-02-28 11:00}
C {1900-03-01 12:00}
D {1904-02-29 11:25}
E {2000-02-29 13:00}
E {2000-03-01 14:00}
F {2001-03-31 15:15}
G {2002-04-01 16:59}
H {2003-04-30 17:00}
I {2004-05-01 23:59:59}
J {2005-06-01}
K {2006-06-30 01:23:45}
L {2007-12-31 02:00}
M {2008-01-01 01:59}
N {3152-07-04 12:00}
P {9999-12-31 23:59:59}
}
foreach {x1 d1} $p1 {
foreach {x2 d2} $p2 {
set r1 [db one {SELECT datetime($d1)}]
do_execsql_test timediff-4-$x1$x2 {
SELECT datetime($d2, timediff($d1,$d2));
} [list $r1]
set r2 [db one {SELECT datetime($d2)}]
do_execsql_test timediff-4-$x2$x1 {
SELECT datetime($d1, timediff($d2,$d1));
} [list $r2]
}
}
# Partial time-diffs as modifiers
#
datetest 5-1 {datetime('2000-01-01','+0001-02-03')} {2001-03-04 00:00:00}
datetest 5-2 {datetime('2000-01-01','+0001-02-03x')} {NULL}
datetest 5-3 {datetime('2000-01-01','+0001-11-03')} {2001-12-04 00:00:00}
datetest 5-4 {datetime('2000-01-01','+0001-12-03')} {NULL}
datetest 5-5 {datetime('2000-01-01','+0001-02-30')} {2001-03-31 00:00:00}
datetest 5-6 {datetime('2000-01-01','+0001-02-31')} {NULL}
datetest 5-7 {datetime('2000-01-01','+0001-02-03 0')} {NULL}
datetest 5-8 {datetime('2000-01-01','+0001-02-03 01')} {NULL}
datetest 5-9 {datetime('2000-01-01','+0001-02-03 01:')} {NULL}
datetest 5-10 {datetime('2000-01-01','+0001-02-03 01:0')} {NULL}
datetest 5-11 {datetime('2000-01-01','+0001-02-03 01:02')} {2001-03-04 01:02:00}
datetest 5-12 {datetime('2000-01-01','+0001-02-03 01:02:')} {NULL}
datetest 5-13 {datetime('2000-01-01','+0001-02-03 01:02:0')} {NULL}
datetest 5-14 {datetime('2000-01-01','+0001-02-03 01:02:03')} \
{2001-03-04 01:02:03}
datetest 5-15 {datetime('2000-01-01','+0001-02-03 01:02:03.')} NULL
datetest 5-16 {datetime('2000-01-01','+0001-02-03 01:02:03.5')} \
{2001-03-04 01:02:03}
datetest 5-17 {datetime('2000-01-01','+0001-02-03 01:02:03.50')} \
{2001-03-04 01:02:03}
datetest 5-18 {datetime('2000-01-01','+0001-02-03 01:02:03.500')} \
{2001-03-04 01:02:03}
datetest 5-19 {datetime('2000-01-01','+0001-02-03 01:02:03.500x')} {NULL}
datetest 5-20 {datetime('2000-01-01','+0001-02-03 01:02:03.500 x')} {NULL}
unset -nocomplain p1
unset -nocomplain p2
set p1 {
a {2000-01-01 00:00:00}
b {2000-01-31 23:59:59}
c {2000-02-01 00:00:00}
d {2000-02-29 23:59:59}
e {2000-03-01 00:00:00}
f {2000-03-31 23:59:59}
g {2000-04-01 00:00:00}
h {2000-04-30 23:59:59}
i {2000-05-01 00:00:00}
j {2000-05-31 23:59:59}
k {2000-06-01 00:00:00}
l {2000-06-30 23:59:59}
m {2000-07-01 00:00:00}
n {2000-07-31 23:59:59}
o {2000-08-01 00:00:00}
p {2000-08-31 23:59:59}
q {2000-09-01 00:00:00}
r {2000-09-30 23:59:59}
s {2000-10-01 00:00:00}
t {2000-10-31 23:59:59}
u {2000-11-01 00:00:00}
v {2000-11-30 23:59:59}
w {2000-12-01 00:00:00}
x {2000-12-31 23:59:59}
}
set p2 {
A {2001-01-01 00:00:00}
B {2001-01-31 23:59:59}
C {2001-02-01 00:00:00}
D {2001-02-28 23:59:59}
E {2001-03-01 00:00:00}
F {2001-03-31 23:59:59}
G {2001-04-01 00:00:00}
H {2001-04-30 23:59:59}
I {2001-05-01 00:00:00}
J {2001-05-31 23:59:59}
K {2001-06-01 00:00:00}
L {2001-06-30 23:59:59}
M {2001-07-01 00:00:00}
N {2001-07-31 23:59:59}
O {2001-08-01 00:00:00}
P {2001-08-31 23:59:59}
Q {2001-09-01 00:00:00}
R {2001-09-30 23:59:59}
S {2001-10-01 00:00:00}
T {2001-10-31 23:59:59}
U {2001-11-01 00:00:00}
V {2001-11-30 23:59:59}
W {2001-12-01 00:00:00}
X {2001-12-31 23:59:59}
}
foreach {x1 d1} $p1 {
foreach {x2 d2} $p2 {
set r1 [db one {SELECT datetime($d1)}]
do_execsql_test timediff-6-$x1$x2 {
SELECT datetime($d2, timediff($d1,$d2));
} [list $r1]
set r2 [db one {SELECT datetime($d2)}]
do_execsql_test timediff-6-$x2$x1 {
SELECT datetime($d1, timediff($d2,$d1));
} [list $r2]
}
}
finish_test