1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/os/persistentdata/persistentstorage/sqlite3api/TEST/TclScript/memsubsys2.test Fri Jun 15 03:10:57 2012 +0200
1.3 @@ -0,0 +1,173 @@
1.4 +# 2008 June 18
1.5 +#
1.6 +# The author disclaims copyright to this source code. In place of
1.7 +# a legal notice, here is a blessing:
1.8 +#
1.9 +# May you do good and not evil.
1.10 +# May you find forgiveness for yourself and forgive others.
1.11 +# May you share freely, never taking more than you give.
1.12 +#
1.13 +#***********************************************************************
1.14 +#
1.15 +# This file contains tests of the memory allocation subsystem.
1.16 +#
1.17 +# $Id: memsubsys2.test,v 1.2 2008/08/12 15:21:12 drh Exp $
1.18 +
1.19 +set testdir [file dirname $argv0]
1.20 +source $testdir/tester.tcl
1.21 +sqlite3_reset_auto_extension
1.22 +
1.23 +# This procedure constructs a new database in test.db. It fills
1.24 +# this database with many small records (enough to force multiple
1.25 +# rebalance operations in the btree-layer and to require a large
1.26 +# page cache), verifies correct results, then returns.
1.27 +#
1.28 +proc build_test_db {testname pragmas} {
1.29 + catch {db close}
1.30 + file delete -force test.db test.db-journal
1.31 + sqlite3 db test.db
1.32 + db eval $pragmas
1.33 + db eval {
1.34 + CREATE TABLE t1(x, y);
1.35 + CREATE TABLE t2(a, b);
1.36 + CREATE INDEX i1 ON t1(x,y);
1.37 + INSERT INTO t1 VALUES(1, 100);
1.38 + INSERT INTO t1 VALUES(2, 200);
1.39 + }
1.40 + for {set i 2} {$i<5000} {incr i $i} {
1.41 + db eval {INSERT INTO t2 SELECT * FROM t1}
1.42 + db eval {INSERT INTO t1 SELECT a+$i, a+b*100 FROM t2}
1.43 + db eval {DELETE FROM t2}
1.44 + }
1.45 + do_test $testname.1 {
1.46 + db eval {SELECT count(*) FROM t1}
1.47 + } 8192
1.48 + integrity_check $testname.2
1.49 +}
1.50 +
1.51 +# Reset all of the highwater marks.
1.52 +#
1.53 +proc reset_highwater_marks {} {
1.54 + sqlite3_status SQLITE_STATUS_MEMORY_USED 1
1.55 + sqlite3_status SQLITE_STATUS_MALLOC_SIZE 1
1.56 + sqlite3_status SQLITE_STATUS_PAGECACHE_USED 1
1.57 + sqlite3_status SQLITE_STATUS_PAGECACHE_OVERFLOW 1
1.58 + sqlite3_status SQLITE_STATUS_PAGECACHE_SIZE 1
1.59 + sqlite3_status SQLITE_STATUS_SCRATCH_USED 1
1.60 + sqlite3_status SQLITE_STATUS_SCRATCH_OVERFLOW 1
1.61 + sqlite3_status SQLITE_STATUS_SCRATCH_SIZE 1
1.62 + sqlite3_status SQLITE_STATUS_PARSER_STACK 1
1.63 +}
1.64 +
1.65 +# Test 1: Verify that calling sqlite3_malloc(0) returns a NULL
1.66 +# pointer.
1.67 +#
1.68 +set highwater [sqlite3_memory_highwater 0]
1.69 +do_test memsubsys2-1.1 {
1.70 + sqlite3_malloc 0
1.71 +} {0}
1.72 +do_test memsubsys2-1.2 {
1.73 + sqlite3_memory_highwater 0
1.74 +} $highwater
1.75 +
1.76 +
1.77 +# Test 2: Verify that the highwater mark increases after a large
1.78 +# allocation.
1.79 +#
1.80 +sqlite3_memory_highwater 1
1.81 +set highwater [sqlite3_memory_highwater 0]
1.82 +do_test memsubsys2-2.1 {
1.83 + sqlite3_free [set x [sqlite3_malloc 100000]]
1.84 + expr {$x!="0"}
1.85 +} {1}
1.86 +do_test memsubsys2-2.2 {
1.87 + expr {[sqlite3_memory_highwater 0]>=[sqlite3_memory_used]+$highwater}
1.88 +} {1}
1.89 +
1.90 +# Test 3: Verify that turning of memstatus disables the statistics
1.91 +# tracking.
1.92 +#
1.93 +db close
1.94 +sqlite3_shutdown
1.95 +sqlite3_config_memstatus 0
1.96 +sqlite3_initialize
1.97 +reset_highwater_marks
1.98 +set highwater [sqlite3_memory_highwater 0]
1.99 +do_test memsubsys2-3.1 {
1.100 + set highwater
1.101 +} {0}
1.102 +do_test memsubsys2-3.2 {
1.103 + sqlite3_malloc 0
1.104 +} {0}
1.105 +do_test memsubsys2-3.3 {
1.106 + sqlite3_memory_highwater 0
1.107 +} {0}
1.108 +do_test memsubsys2-3.4 {
1.109 + sqlite3_memory_used
1.110 +} {0}
1.111 +do_test memsubsys2-3.5 {
1.112 + set ::allocation [sqlite3_malloc 100000]
1.113 + expr {$::allocation!="0"}
1.114 +} {1}
1.115 +do_test memsubsys2-3.6 {
1.116 + sqlite3_memory_highwater 0
1.117 +} {0}
1.118 +do_test memsubsys2-3.7 {
1.119 + sqlite3_memory_used
1.120 +} {0}
1.121 +do_test memsubsys2-3.8 {
1.122 + sqlite3_free $::allocation
1.123 +} {}
1.124 +do_test memsubsys2-3.9 {
1.125 + sqlite3_free 0
1.126 +} {}
1.127 +
1.128 +
1.129 +# Test 4: Verify that turning on memstatus reenables the statistics
1.130 +# tracking.
1.131 +#
1.132 +sqlite3_shutdown
1.133 +sqlite3_config_memstatus 1
1.134 +sqlite3_initialize
1.135 +reset_highwater_marks
1.136 +set highwater [sqlite3_memory_highwater 0]
1.137 +do_test memsubsys2-4.1 {
1.138 + set highwater
1.139 +} {0}
1.140 +do_test memsubsys2-4.2 {
1.141 + sqlite3_malloc 0
1.142 +} {0}
1.143 +do_test memsubsys2-4.3 {
1.144 + sqlite3_memory_highwater 0
1.145 +} {0}
1.146 +do_test memsubsys2-4.4 {
1.147 + sqlite3_memory_used
1.148 +} {0}
1.149 +do_test memsubsys2-4.5 {
1.150 + set ::allocation [sqlite3_malloc 100000]
1.151 + expr {$::allocation!="0"}
1.152 +} {1}
1.153 +do_test memsubsys2-4.6 {
1.154 + expr {[sqlite3_memory_highwater 0]>=100000}
1.155 +} {1}
1.156 +do_test memsubsys2-4.7 {
1.157 + expr {[sqlite3_memory_used]>=100000}
1.158 +} {1}
1.159 +do_test memsubsys2-4.8 {
1.160 + sqlite3_free $::allocation
1.161 +} {}
1.162 +do_test memsubsys2-4.9 {
1.163 + sqlite3_free 0
1.164 +} {}
1.165 +do_test memsubsys2-4.10 {
1.166 + expr {[sqlite3_memory_highwater 0]>=100000}
1.167 +} {1}
1.168 +do_test memsubsys2-4.11 {
1.169 + sqlite3_memory_used
1.170 +} {0}
1.171 +
1.172 +
1.173 +
1.174 +
1.175 +autoinstall_test_functions
1.176 +finish_test