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# 2014 June 17
#
# 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 script is testing the FTS5 module.
#
# Specifically, this tests that, provided the amount of data remains
# constant, the FTS index does not grow indefinitely as rows are inserted
# and deleted,
#
source [file join [file dirname [info script]] fts5_common.tcl]
set testprefix fts5aj
# If SQLITE_ENABLE_FTS5 is defined, omit this file.
ifcapable !fts5 {
finish_test
return
}
proc doc {} {
set dict [list a b c d e f g h i j k l m n o p q r s t u v w x y z]
set res [list]
for {set i 0} {$i < 20} {incr i} {
lappend res [lindex $dict [expr int(rand() * 26)]]
}
set res
}
proc structure {} {
set val [db one {SELECT fts5_decode(rowid,block) FROM t1_data WHERE rowid=10}]
foreach lvl [lrange $val 1 end] {
lappend res [expr [llength $lvl]-2]
}
set res
}
expr srand(0)
do_execsql_test 1.0 {
CREATE VIRTUAL TABLE t1 USING fts5(x);
INSERT INTO t1(t1, rank) VALUES('pgsz', 64);
}
for {set iTest 0} {$iTest < 50000} {incr iTest} {
if {$iTest > 1000} { execsql { DELETE FROM t1 WHERE rowid=($iTest-1000) } }
set new [doc]
execsql { INSERT INTO t1 VALUES($new) }
if {$iTest==10000} { set sz1 [db one {SELECT count(*) FROM t1_data}] }
if {0==($iTest % 1000)} {
set sz [db one {SELECT count(*) FROM t1_data}]
set s [structure]
do_execsql_test 1.$iTest.$sz.{$s} {
INSERT INTO t1(t1) VALUES('integrity-check')
}
}
}
do_execsql_test 2.0 { INSERT INTO t1(t1) VALUES('integrity-check') }
finish_test