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# 2021 June 22
#
# 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.
#
#***********************************************************************
#
# Tests for the sqlite3_changes() and sqlite3_total_changes() APIs.
#
set testdir [file dirname $argv0]
source $testdir/tester.tcl
set testprefix changes
# To test that the change-counters do not suffer from 32-bit signed integer
# rollover, add the following line to the array of test cases below. The
# test will take will over an hour to run.
#
# 7 (1<<31)+10 ""
#
foreach {tn nRow wor} {
1 50 ""
2 50 "WITHOUT ROWID"
3 5000 ""
4 5000 "WITHOUT ROWID"
5 50000 ""
6 50000 "WITHOUT ROWID"
} {
reset_db
set nBig [expr $nRow]
do_execsql_test 1.$tn.0 "
PRAGMA journal_mode = off;
CREATE TABLE t1(x INTEGER PRIMARY KEY) $wor;
" {off}
do_execsql_test 1.$tn.1 {
WITH s(i) AS (
SELECT 1 UNION ALL SELECT i+1 FROM s WHERE i < $nBig
)
INSERT INTO t1 SELECT i FROM s;
}
do_test 1.$tn.2 {
db changes
} [expr $nBig]
do_test 1.$tn.3 {
db total_changes
} [expr $nBig]
do_execsql_test 1.$tn.4 {
INSERT INTO t1 VALUES(-1)
}
do_test 1.$tn.5 {
db changes
} [expr 1]
do_test 1.$tn.6 {
db total_changes
} [expr {$nBig+1}]
do_execsql_test 1.$tn.7a {
SELECT count(*) FROM t1
} [expr {$nBig+1}]
do_execsql_test 1.$tn.7 {
DELETE FROM t1
}
do_test 1.$tn.8 {
db changes
} [expr {$nBig+1}]
do_test 1.$tn.9 {
db total_changes
} [expr {2*($nBig+1)}]
}
finish_test
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