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123 lines
3.3 KiB
Plaintext
123 lines
3.3 KiB
Plaintext
# 2007 Aug 13
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#
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# The author disclaims copyright to this source code. In place of
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# a legal notice, here is a blessing:
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#
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# May you do good and not evil.
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# May you find forgiveness for yourself and forgive others.
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# May you share freely, never taking more than you give.
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#
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#***********************************************************************
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#
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# This file tests aspects of the malloc failure while parsing
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# CREATE TABLE statements in auto_vacuum mode.
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#
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# $Id: mallocC.test,v 1.10 2009/04/11 16:27:50 drh Exp $
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set testdir [file dirname $argv0]
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source $testdir/tester.tcl
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source $testdir/malloc_common.tcl
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# Only run these tests if memory debugging is turned on.
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#
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if {!$MEMDEBUG} {
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puts "Skipping mallocC tests: not compiled with -DSQLITE_MEMDEBUG..."
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finish_test
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return
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}
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proc do_mallocC_test {tn args} {
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array set ::mallocopts $args
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#set sum [allcksum db]
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for {set ::n 1} {true} {incr ::n} {
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# Run the SQL. Malloc number $::n is set to fail. A malloc() failure
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# may or may not be reported.
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sqlite3_memdebug_fail $::n -repeat 1
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do_test mallocC-$tn.$::n.1 {
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set res [catchsql [string trim $::mallocopts(-sql)]]
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set rc [expr {
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0==[string compare $res {1 {out of memory}}] ||
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[db errorcode] == 3082 ||
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0==[lindex $res 0]
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}]
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if {$rc!=1} {
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puts "Error: $res"
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}
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set rc
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} {1}
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# If $::n is greater than the number of malloc() calls required to
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# execute the SQL, then this test is finished. Break out of the loop.
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set nFail [sqlite3_memdebug_fail -1]
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if {$nFail==0} {
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break
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}
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# Recover from the malloc failure.
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#
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# Update: The new malloc() failure handling means that a transaction may
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# still be active even if a malloc() has failed. But when these tests were
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# written this was not the case. So do a manual ROLLBACK here so that the
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# tests pass.
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do_test mallocC-$tn.$::n.2 {
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catch {
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execsql {
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ROLLBACK;
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}
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}
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expr 0
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} {0}
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# Checksum the database.
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#do_test mallocC-$tn.$::n.3 {
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# allcksum db
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#} $sum
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#integrity_check mallocC-$tn.$::n.4
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}
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unset ::mallocopts
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}
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sqlite3_extended_result_codes db 1
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execsql {
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PRAGMA auto_vacuum=1;
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CREATE TABLE t0(a, b, c);
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}
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# The number of memory allocation failures is different on 64-bit
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# and 32-bit systems due to larger structures on 64-bit systems
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# overflowing the lookaside more often. To debug problems, it is
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# sometimes helpful to reduce the size of the lookaside allocation
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# blocks. But this is normally disabled.
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#
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if {0} {
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db close
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sqlite3_shutdown
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sqlite3_config_lookaside 50 500
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sqlite3_initialize
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autoinstall_test_functions
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sqlite3 db test.db
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}
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do_mallocC_test 1 -sql {
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BEGIN;
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-- Allocate 32 new root pages. This will exercise the 'extract specific
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-- page from the freelist' code when in auto-vacuum mode (see the
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-- allocatePage() routine in btree.c).
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CREATE TABLE t1(a UNIQUE, b UNIQUE, c UNIQUE);
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CREATE TABLE t2(a UNIQUE, b UNIQUE, c UNIQUE);
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CREATE TABLE t3(a UNIQUE, b UNIQUE, c UNIQUE);
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CREATE TABLE t4(a UNIQUE, b UNIQUE, c UNIQUE);
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CREATE TABLE t5(a UNIQUE, b UNIQUE, c UNIQUE);
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CREATE TABLE t6(a UNIQUE, b UNIQUE, c UNIQUE);
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CREATE TABLE t7(a UNIQUE, b UNIQUE, c UNIQUE);
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CREATE TABLE t8(a UNIQUE, b UNIQUE, c UNIQUE);
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ROLLBACK;
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}
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finish_test
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