# 2017-07-20
#
# 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 used in
# check constraints and index expressions.
#

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
}

do_execsql_test date2-100 {
  CREATE TABLE t1(x, y, CHECK( date(x) BETWEEN '2017-07-01' AND '2017-07-31' ));
  INSERT INTO t1(x,y) VALUES('2017-07-20','one');
} {}
do_catchsql_test date2-110 {
  INSERT INTO t1(x,y) VALUES('now','two');
} {1 {non-deterministic use of date() in a CHECK constraint}}
do_execsql_test date2-120 {
  SELECT * FROM t1;
} {2017-07-20 one}
do_catchsql_test date2-130 {
  INSERT INTO t1(x,y) VALUES('2017-08-01','two');
} {1 {CHECK constraint failed: date(x) BETWEEN '2017-07-01' AND '2017-07-31'}}

# 2021-03-16 Forum post https://sqlite.org/forum/forumpost/464afd4086
do_catchsql_test date2-140 {
  DROP TABLE t1;
  CREATE TABLE t1(x, y, z AS (date()));
  INSERT INTO t1(x,y) VALUES(1,2);
} {1 {non-deterministic use of date() in a generated column}}

do_execsql_test date2-200 {
  CREATE TABLE t2(x,y);
  INSERT INTO t2(x,y) VALUES(1, '2017-07-20'), (2, 'xyzzy');
  CREATE INDEX t2y ON t2(date(y));
}
do_catchsql_test date2-210 {
  INSERT INTO t2(x,y) VALUES(3, 'now');
} {1 {non-deterministic use of date() in an index}}
do_execsql_test date2-220 {
  SELECT x, y FROM t2 ORDER BY x;
} {1 2017-07-20 2 xyzzy}

do_execsql_test date2-300 {
  CREATE TABLE t3(a INTEGER PRIMARY KEY,b);
  WITH RECURSIVE c(x) AS (VALUES(1) UNION ALL SELECT x+1 FROM c WHERE x<1000)
    INSERT INTO t3(a,b) SELECT x, julianday('2017-07-01')+x FROM c;
  UPDATE t3 SET b='now' WHERE a=500;
}
do_catchsql_test date2-310 {
  CREATE INDEX t3b1 ON t3(datetime(b));
} {1 {non-deterministic use of datetime() in an index}}
do_catchsql_test date2-320 {
  CREATE INDEX t3b1 ON t3(datetime(b)) WHERE typeof(b)='real';
} {0 {}}
do_execsql_test date2-330 {
  EXPLAIN QUERY PLAN
  SELECT a FROM t3
   WHERE typeof(b)='real'
     AND datetime(b) BETWEEN '2017-07-04' AND '2017-07-08';
} {/USING INDEX t3b/}
do_execsql_test date2-331 {
  SELECT a FROM t3
   WHERE typeof(b)='real'
     AND datetime(b) BETWEEN '2017-07-04' AND '2017-07-08'
  ORDER BY a;
} {3 4 5 6}

do_execsql_test date2-400 {
  CREATE TABLE t4(a INTEGER PRIMARY KEY,b);
  WITH RECURSIVE c(x) AS (VALUES(1) UNION ALL SELECT x+1 FROM c WHERE x<1000)
    INSERT INTO t4(a,b) SELECT x, julianday('2017-07-01')+x FROM c;
  UPDATE t4 SET b='now' WHERE a=500;
}
do_catchsql_test date2-410 {
  CREATE INDEX t4b1 ON t4(b)
    WHERE date(b) BETWEEN '2017-06-01' AND '2017-08-31';
} {1 {non-deterministic use of date() in an index}}
do_execsql_test date2-420 {
  DELETE FROM t4 WHERE a=500;
  CREATE INDEX t4b1 ON t4(b)
    WHERE date(b) BETWEEN '2017-06-01' AND '2017-08-31';
}
do_catchsql_test date2-430 {
  INSERT INTO t4(a,b) VALUES(9999,'now');
} {1 {non-deterministic use of date() in an index}}

do_execsql_test date2-500 {
  CREATE TABLE mods(x);
  INSERT INTO mods(x) VALUES
    ('+10 days'),
    ('-10 days'),
    ('+10 hours'),
    ('-10 hours'),
    ('+10 minutes'),
    ('-10 minutes'),
    ('+10 seconds'),
    ('-10 seconds'),
    ('+10 months'),
    ('-10 months'),
    ('+10 years'),
    ('-10 years'),
    ('start of month'),
    ('start of year'),
    ('start of day'),
    ('weekday 1'),
    ('unixepoch');
  CREATE TABLE t5(y,m);
  WITH RECURSIVE c(x) AS (VALUES(1) UNION ALL SELECT x+1 FROM c WHERE x<5)
    INSERT INTO t5(y,m) SELECT julianday('2017-07-01')+c.x, mods.x FROM c, mods;
  CREATE INDEX t5x1 on t5(y) WHERE datetime(y,m) IS NOT NULL;
}
do_catchsql_test date2-510 {
  INSERT INTO t5(y,m) VALUES('2017-07-20','localtime');
} {1 {non-deterministic use of datetime() in an index}}
do_catchsql_test date2-520 {
  INSERT INTO t5(y,m) VALUES('2017-07-20','utc');
} {1 {non-deterministic use of datetime() in an index}}

# 2019-10-30 Ticket 830277d9db6c3ba1
#
do_catchsql_test date2-600 {
  CREATE TABLE t600(a REAL CHECK( a<julianday('now') ));
  INSERT INTO t600(a) VALUES(1.0);
} {1 {non-deterministic use of julianday() in a CHECK constraint}}
do_catchsql_test date2-601 {
  CREATE TABLE t601(a REAL, b TEXT, CHECK( a<julianday(b) ));
  INSERT INTO t601(a,b) VALUES(1.0, '1970-01-01');
} {0 {}}
do_catchsql_test date2-602 {
  INSERT INTO t601(a,b) VALUES(1e100, '1970-01-01');
} {1 {CHECK constraint failed: a<julianday(b)}}
do_catchsql_test date2-603 {
  INSERT INTO t601(a,b) VALUES(10, 'now');
} {1 {non-deterministic use of julianday() in a CHECK constraint}}
do_catchsql_test date2-604 {
  INSERT INTO t600(a) VALUES(julianday('now')+10);
} {1 {non-deterministic use of julianday() in a CHECK constraint}}


do_catchsql_test date2-610 {
  CREATE TABLE t610(a,b);
  CREATE INDEX t610x1 ON t610(julianday('now')+b);
  INSERT INTO t610(a,b) VALUES(123,456);
} {1 {non-deterministic use of julianday() in an index}}
do_catchsql_test date2-611 {
  CREATE TABLE t611(a,b);
  CREATE INDEX t611x1 ON t611(julianday(a)+b);
  INSERT INTO t611(a,b) VALUES('1970-01-01',10.0);
} {0 {}}
do_catchsql_test date2-612 {
  INSERT INTO t611(a,b) VALUES('now',10.0);
} {1 {non-deterministic use of julianday() in an index}}

do_catchsql_test date3-620 {
  CREATE TABLE t620(a, b AS (a+julianday('now')));
  INSERT INTO t620 VALUES(10);
} {1 {non-deterministic use of julianday() in a generated column}}

finish_test