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All of the malloc test cases run. Still seeing failures in malloc4.test. (CVS 4272)

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FossilOrigin-Name: 205d0b881d541db65837ce6cf44d58d607635bc2
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drh
2007-08-22 22:04:37 +00:00
parent f3a65f7e44
commit ed138fb3bc
18 changed files with 216 additions and 677 deletions
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110
test/malloc7.test
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@ -11,130 +11,33 @@
# This file contains additional out-of-memory checks (see malloc.tcl)
# added to expose a bug in out-of-memory handling for sqlite3_prepare16().
#
# $Id: malloc7.test,v 1.2 2006/07/26 14:57:30 drh Exp $
# $Id: malloc7.test,v 1.3 2007/08/22 22:04:37 drh Exp $
set testdir [file dirname $argv0]
source $testdir/tester.tcl
# Only run these tests if memory debugging is turned on.
#
if {[info command sqlite_malloc_stat]==""} {
ifcapable !memdebug {
puts "Skipping malloc tests: not compiled with -DSQLITE_MEMDEBUG..."
finish_test
return
}
source $testdir/malloc_common.tcl
# Usage: do_malloc_test <test number> <options...>
#
# The first argument, <test number>, is an integer used to name the
# tests executed by this proc. Options are as follows:
#
# -tclprep TCL script to run to prepare test.
# -sqlprep SQL script to run to prepare test.
# -tclbody TCL script to run with malloc failure simulation.
# -sqlbody TCL script to run with malloc failure simulation.
# -cleanup TCL script to run after the test.
#
# This command runs a series of tests to verify SQLite's ability
# to handle an out-of-memory condition gracefully. It is assumed
# that if this condition occurs a malloc() call will return a
# NULL pointer. Linux, for example, doesn't do that by default. See
# the "BUGS" section of malloc(3).
#
# Each iteration of a loop, the TCL commands in any argument passed
# to the -tclbody switch, followed by the SQL commands in any argument
# passed to the -sqlbody switch are executed. Each iteration the
# Nth call to sqliteMalloc() is made to fail, where N is increased
# each time the loop runs starting from 1. When all commands execute
# successfully, the loop ends.
#
proc do_malloc_test {tn args} {
array unset ::mallocopts
array set ::mallocopts $args
set ::go 1
for {set ::n 1} {$::go && $::n < 50000} {incr ::n} {
do_test malloc7-$tn.$::n {
# Remove all traces of database files test.db and test2.db from the files
# system. Then open (empty database) "test.db" with the handle [db].
#
sqlite_malloc_fail 0
catch {db close}
catch {file delete -force test.db}
catch {file delete -force test.db-journal}
catch {file delete -force test2.db}
catch {file delete -force test2.db-journal}
catch {sqlite3 db test.db}
set ::DB [sqlite3_connection_pointer db]
# Execute any -tclprep and -sqlprep scripts.
#
if {[info exists ::mallocopts(-tclprep)]} {
eval $::mallocopts(-tclprep)
}
if {[info exists ::mallocopts(-sqlprep)]} {
execsql $::mallocopts(-sqlprep)
}
# Now set the ${::n}th malloc() to fail and execute the -tclbody and
# -sqlbody scripts.
#
sqlite_malloc_fail $::n
set ::mallocbody {}
if {[info exists ::mallocopts(-tclbody)]} {
append ::mallocbody "$::mallocopts(-tclbody)\n"
}
if {[info exists ::mallocopts(-sqlbody)]} {
append ::mallocbody "db eval {$::mallocopts(-sqlbody)}"
}
set v [catch $::mallocbody msg]
# If the test fails (if $v!=0) and the database connection actually
# exists, make sure the failure code is SQLITE_NOMEM.
if {$v && [info command db]=="db" && [info exists ::mallocopts(-sqlbody)]
&& [db errorcode]!=7} {
set v 999
}
set leftover [lindex [sqlite_malloc_stat] 2]
if {$leftover>0} {
if {$leftover>1} {puts "\nLeftover: $leftover\nReturn=$v Message=$msg"}
set ::go 0
if {$v} {
puts "\nError message returned: $msg"
} else {
set v {1 1}
}
} else {
set v2 [expr {$msg=="" || $msg=="out of memory"}]
if {!$v2} {puts "\nError message returned: $msg"}
lappend v $v2
}
} {1 1}
if {[info exists ::mallocopts(-cleanup)]} {
catch [list uplevel #0 $::mallocopts(-cleanup)] msg
}
}
unset ::mallocopts
}
db eval {
do_malloc_test malloc7-1 -sqlprep {
CREATE TABLE t1(a,b,c,d);
CREATE INDEX i1 ON t1(b,c);
}
do_malloc_test 1 -tclbody {
} -tclbody {
set sql16 [encoding convertto unicode "SELECT * FROM sqlite_master"]
append sql16 "\00\00"
set nbyte [string length $sql16]
set ::STMT [sqlite3_prepare16 $::DB $sql16 $nbyte DUMMY]
set ::STMT [sqlite3_prepare16 db $sql16 $nbyte DUMMY]
sqlite3_finalize $::STMT
}
# Ensure that no file descriptors were leaked.
do_test malloc-99.X {
catch {db close}
@ -142,5 +45,4 @@ do_test malloc-99.X {
} {0}
puts open-file-count=$sqlite_open_file_count
sqlite_malloc_fail 0
finish_test