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+# 2005 February 15
+#
+# 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 that the VACUUM statement correctly
+# frees any memory used for a temporary cache.
+#
+# TESTRUNNER: slow
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix vacuummem
+
+if {[permutation]=="memsubsys1"} {
+ finish_test
+ return
+}
+
+# If ENABLE_MEMORY_MANAGEMENT is defined, when VACUUM is run the temp db
+# is able to borrow space from the main db (and it does, because the
+# temp db is configure with a very small cache). When the VACUUM is
+# finished and the temp db closed, all the page-cache memory currently
+# assigned to the temp db is freed. If ENABLE_MEMORY_MANAGEMENT is defined
+# this causes the total memory usage to drop much more than expected,
+# causing tests in this file to fail.
+#
+ifcapable memorymanage {
+ finish_test
+ return
+}
+
+
+proc memory_used {} {
+ set stat [sqlite3_status SQLITE_STATUS_MEMORY_USED 1]
+ lindex $stat 1
+}
+
+do_execsql_test 1.0 {
+ PRAGMA cache_size = -2000;
+ CREATE TABLE t1(a, b, c);
+
+ WITH r(i) AS (
+ SELECT 1 UNION ALL SELECT i+1 FROM r WHERE i<100000
+ )
+ INSERT INTO t1 SELECT randomblob(100),randomblob(100),randomblob(100) FROM r;
+
+ CREATE INDEX t1a ON t1(a);
+ CREATE INDEX t1b ON t1(b);
+ CREATE INDEX t1c ON t1(c);
+}
+set ans "#/[memory_used]/"
+
+do_test 1.1 { memory_used } $ans
+
+do_execsql_test 1.2 VACUUM
+
+do_test 1.3 { memory_used } $ans
+
+do_execsql_test 1.4 {
+ SELECT count(*) FROM t1 WHERE +a IS NOT NULL
+} {100000}
+
+do_test 1.5 { memory_used } $ans
+
+
+
+finish_test