47 lines
1.3 KiB
Plaintext
47 lines
1.3 KiB
Plaintext
# 2011 November 16
|
|
#
|
|
# 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 contains test cases for sqlite3_db_release_memory and
|
|
# the PRAGMA shrink_memory statement.
|
|
#
|
|
|
|
set testdir [file dirname $argv0]
|
|
source $testdir/tester.tcl
|
|
|
|
unset -nocomplain baseline
|
|
do_test shrink-1.1 {
|
|
db eval {
|
|
PRAGMA cache_size = 2000;
|
|
CREATE TABLE t1(x,y);
|
|
INSERT INTO t1 VALUES(randomblob(1000000),1);
|
|
}
|
|
set ::baseline sqlite3_memory_used
|
|
# EVIDENCE-OF: R-58814-63508 The sqlite3_db_release_memory(D) interface
|
|
# attempts to free as much heap memory as possible from database
|
|
# connection D.
|
|
sqlite3_db_release_memory db
|
|
expr {$::baseline > [sqlite3_memory_used]+500000}
|
|
} {1}
|
|
do_test shrink-1.2 {
|
|
set baseline [sqlite3_memory_used]
|
|
db eval {
|
|
UPDATE t1 SET y=y+1;
|
|
}
|
|
expr {$::baseline+500000 < [sqlite3_memory_used]}
|
|
} {1}
|
|
do_test shrink-1.3 {
|
|
set baseline [sqlite3_memory_used]
|
|
db eval {PRAGMA shrink_memory}
|
|
expr {$::baseline > [sqlite3_memory_used]+500000}
|
|
} {1}
|
|
|
|
finish_test
|