# 2011 Mar 21
#
# 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.
#
#***********************************************************************
#
# The focus of this file is testing the session module.
#
if {![info exists testdir]} {
set testdir [file join [file dirname [info script]] .. .. test]
}
source [file join [file dirname [info script]] session_common.tcl]
source $testdir/tester.tcl
set testprefix sessionfault
forcedelete test.db2
sqlite3 db2 test.db2
do_common_sql {
CREATE TABLE t1(a, b, c, PRIMARY KEY(a, b));
INSERT INTO t1 VALUES(1, 2, 3);
INSERT INTO t1 VALUES(4, 5, 6);
}
faultsim_save_and_close
db2 close
#-------------------------------------------------------------------------
# Test OOM error handling when collecting and applying a simple changeset.
#
# Test 1.1 attaches tables individually by name to the session object.
# Whereas test 1.2 passes NULL to sqlite3session_attach() to attach all
# tables.
#
do_faultsim_test 1.1 -faults oom-* -prep {
catch {db2 close}
catch {db close}
faultsim_restore_and_reopen
sqlite3 db2 test.db2
} -body {
do_then_apply_sql {
INSERT INTO t1 VALUES(7, 8, 9);
UPDATE t1 SET c = 10 WHERE a = 1;
DELETE FROM t1 WHERE a = 4;
}
} -test {
faultsim_test_result {0 {}} {1 SQLITE_NOMEM}
faultsim_integrity_check
if {$testrc==0} { compare_db db db2 }
}
do_faultsim_test 1.2 -faults oom-* -prep {
catch {db2 close}
catch {db close}
faultsim_restore_and_reopen
} -body {
sqlite3session S db main
S attach *
execsql {
INSERT INTO t1 VALUES(7, 8, 9);
UPDATE t1 SET c = 10 WHERE a = 1;
DELETE FROM t1 WHERE a = 4;
}
set ::changeset [S changeset]
set {} {}
} -test {
catch { S delete }
faultsim_test_result {0 {}} {1 SQLITE_NOMEM}
faultsim_integrity_check
if {$testrc==0} {
proc xConflict {args} { return "OMIT" }
sqlite3 db2 test.db2
sqlite3changeset_apply db2 $::changeset xConflict
compare_db db db2
}
}
#-------------------------------------------------------------------------
# The following block of tests - 2.* - are designed to check
# the handling of faults in the sqlite3changeset_apply() function.
#
catch {db close}
catch {db2 close}
forcedelete test.db2 test.db
sqlite3 db2 test.db2
sqlite3 db test.db
do_common_sql {
CREATE TABLE t1(a, b, c, PRIMARY KEY(a, b));
INSERT INTO t1 VALUES('apple', 'orange', 'pear');
CREATE TABLE t2(x PRIMARY KEY, y);
}
db2 close
faultsim_save_and_close
foreach {tn conflict_policy sql sql2} {
1 OMIT { INSERT INTO t1 VALUES('one text', 'two text', X'00ff00') } {}
2 OMIT { DELETE FROM t1 WHERE a = 'apple' } {}
3 OMIT { UPDATE t1 SET c = 'banana' WHERE b = 'orange' } {}
4 REPLACE { INSERT INTO t2 VALUES('keyvalue', 'value 1') } {
INSERT INTO t2 VALUES('keyvalue', 'value 2');
}
} {
proc xConflict args [list return $conflict_policy]
do_faultsim_test 2.$tn -faults oom-transient -prep {
catch {db2 close}
catch {db close}
faultsim_restore_and_reopen
set ::changeset [changeset_from_sql $::sql]
sqlite3 db2 test.db2
sqlite3_db_config_lookaside db2 0 0 0
execsql $::sql2 db2
} -body {
sqlite3changeset_apply db2 $::changeset xConflict
} -test {
faultsim_test_result {0 {}} {1 SQLITE_NOMEM}
faultsim_integrity_check
if {$testrc==0} { compare_db db db2 }
}
}
#-------------------------------------------------------------------------
# This test case is designed so that a malloc() failure occurs while
# resizing the session object hash-table from 256 to 512 buckets. This
# is not an error, just a sub-optimal condition.
#
do_faultsim_test 3 -faults oom-* -prep {
catch {db2 close}
catch {db close}
faultsim_restore_and_reopen
sqlite3 db2 test.db2
sqlite3session S db main
S attach t1
execsql { BEGIN }
for {set i 0} {$i < 125} {incr i} {
execsql {INSERT INTO t1 VALUES(10+$i, 10+$i, 10+$i)}
}
} -body {
for {set i 125} {$i < 133} {incr i} {
execsql {INSERT INTO t1 VALUES(10+$i, 10+$i, 1-+$i)}
}
S changeset
set {} {}
} -test {
faultsim_test_result {0 {}} {1 SQLITE_NOMEM}
if {$testrc==0} {
sqlite3changeset_apply db2 [S changeset] xConflict
compare_db db db2
}
catch { S delete }
faultsim_integrity_check
}
catch { db close }
catch { db2 close }
forcedelete test.db2 test.db
sqlite3 db2 test.db2
sqlite3 db test.db
proc xConflict {op tbl type args} {
if { $type=="CONFLICT" || $type=="DATA" } {
return "REPLACE"
}
return "OMIT"
}
do_test 4.0 {
execsql {
PRAGMA encoding = 'utf16';
CREATE TABLE t1(a PRIMARY KEY, b);
INSERT INTO t1 VALUES(5, 32);
}
execsql {
PRAGMA encoding = 'utf16';
CREATE TABLE t1(a PRIMARY KEY, b NOT NULL);
INSERT INTO t1 VALUES(1, 2);
INSERT INTO t1 VALUES(2, 4);
INSERT INTO t1 VALUES(4, 16);
} db2
} {}
faultsim_save_and_close
db2 close
do_faultsim_test 4 -faults oom-* -prep {
catch {db2 close}
catch {db close}
faultsim_restore_and_reopen
sqlite3 db2 test.db2
sqlite3session S db main
S attach t1
execsql {
INSERT INTO t1 VALUES(1, 45);
INSERT INTO t1 VALUES(2, 55);
INSERT INTO t1 VALUES(3, 55);
UPDATE t1 SET a = 4 WHERE a = 5;
}
} -body {
sqlite3changeset_apply db2 [S changeset] xConflict
} -test {
catch { S delete }
faultsim_test_result {0 {}} {1 SQLITE_NOMEM}
if {$testrc==0} { compare_db db db2 }
}
#-------------------------------------------------------------------------
# This block of tests verifies that OOM faults in the
# sqlite3changeset_invert() function are handled correctly.
#
catch {db close}
catch {db2 close}
forcedelete test.db
sqlite3 db test.db
execsql {
CREATE TABLE t1(a, b, PRIMARY KEY(b));
CREATE TABLE t2(a PRIMARY KEY, b);
INSERT INTO t1 VALUES('string', 1);
INSERT INTO t1 VALUES(4, 2);
INSERT INTO t1 VALUES(X'FFAAFFAAFFAA', 3);
}
set changeset [changeset_from_sql {
INSERT INTO t1 VALUES('xxx', 'yyy');
DELETE FROM t1 WHERE a = 'string';
UPDATE t1 SET a = 20 WHERE b = 2;
}]
db close
do_faultsim_test 5 -faults oom* -body {
set ::inverse [sqlite3changeset_invert $::changeset]
set {} {}
} -test {
faultsim_test_result {0 {}} {1 SQLITE_NOMEM}
if {$testrc==0} {
set x [list]
sqlite3session_foreach c $::inverse { lappend x $c }
foreach c {
{DELETE t1 0 {t xxx t yyy} {}}
{INSERT t1 0 {} {t string i 1}}
{UPDATE t1 0 {i 20 {} {}} {i 4 i 2}}
} { lappend y $c }
if {$x != $y} { error "changeset no good" }
}
}
finish_test