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# 2021 August 16
#
# 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.
#
#***********************************************************************
#
set testdir [file dirname $argv0]
source $testdir/tester.tcl
source $testdir/malloc_common.tcl
set testprefix walseh1
set ::seh_countdown 0
set ::seh_errno 10
proc seh_faultsim_callback {iFault} {
if {$iFault==650} {
incr ::seh_countdown -1
if {$::seh_countdown==0} { return $::seh_errno }
}
return 0
}
proc seh_injectinstall {} {
sqlite3_test_control_fault_install seh_faultsim_callback
}
proc seh_injectuninstall {} {
sqlite3_test_control_fault_install
}
proc seh_injectstart {iFail} {
set ::seh_errno [expr 2+$iFail*10]
set ::seh_countdown $iFail
}
proc seh_injectstop {} {
set res [expr $::seh_countdown<=0]
set ::seh_countdown 0
set res
}
set FAULTSIM(seh) [list \
-injectinstall seh_injectinstall \
-injectstart seh_injectstart \
-injectstop seh_injectstop \
-injecterrlist {{1 {disk I/O error}}} \
-injectuninstall seh_injectuninstall \
]
proc test_system_errno {db expect} {
set serrno [sqlite3_system_errno $db]
if {$serrno!=$expect} {
error "surprising system_errno. Expected $expect, got $serrno"
}
}
do_execsql_test 1.0 {
PRAGMA journal_mode = wal;
CREATE TABLE t1(x, y);
INSERT INTO t1 VALUES(1, 2);
INSERT INTO t1 VALUES(3, 4);
} {wal}
faultsim_save_and_close
do_faultsim_test 1 -faults seh -prep {
catch { db2 close }
faultsim_restore_and_reopen
execsql { SELECT * FROM sqlite_schema }
sqlite3 db2 test.db
} -body {
execsql { SELECT * FROM t1 } db2
} -test {
faultsim_test_result {0 {1 2 3 4}}
if {$testrc} { test_system_errno db2 $::seh_errno }
}
catch { db2 close }
faultsim_save_and_close
do_faultsim_test 2 -faults seh -prep {
catch { db close }
faultsim_restore_and_reopen
} -body {
execsql { SELECT * FROM t1 }
} -test {
faultsim_test_result {0 {1 2 3 4}}
if {$testrc} { test_system_errno db $::seh_errno }
}
do_faultsim_test 3 -faults seh -prep {
catch { db close }
faultsim_restore_and_reopen
} -body {
execsql { INSERT INTO t1 VALUES(5, 6) }
execsql { SELECT * FROM t1 }
} -test {
faultsim_test_result {0 {1 2 3 4 5 6}}
if {$testrc} { test_system_errno db $::seh_errno }
}
do_faultsim_test 4 -faults seh -prep {
catch { db close }
faultsim_restore_and_reopen
} -body {
execsql { PRAGMA wal_checkpoint }
execsql { INSERT INTO t1 VALUES(7, 8) }
execsql { SELECT * FROM t1 }
} -test {
faultsim_test_result {0 {1 2 3 4 7 8}}
if {$testrc} { test_system_errno db $::seh_errno }
}
catch { db close }
do_faultsim_test 5 -faults seh -prep {
catch { db close }
faultsim_restore_and_reopen
execsql {
PRAGMA cache_size = 5;
BEGIN;
WITH s(i) AS (
SELECT 1 UNION ALL SELECT i+1 FROM s WHERE i<50
)
INSERT INTO t1 SELECT randomblob(500), randomblob(500) FROM s;
}
} -body {
execsql ROLLBACK
} -test {
faultsim_test_result {0 {}}
if {$testrc} { test_system_errno db $::seh_errno }
}
catch { db close }
do_faultsim_test 6 -faults seh -prep {
catch { db close }
faultsim_restore_and_reopen
} -body {
execsql { PRAGMA wal_checkpoint = TRUNCATE }
execsql { INSERT INTO t1 VALUES(7, 8) }
execsql { SELECT * FROM t1 }
} -test {
faultsim_test_result {0 {1 2 3 4 7 8}}
if {$testrc} { test_system_errno db $::seh_errno }
}
catch { db close }
finish_test
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