sqlite/test/mmapfault.test

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# 2013-05-23
#
# 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 $testdir/malloc_common.tcl
ifcapable !mmap {
finish_test
return
}
set testprefix mmapfault
set a_string_counter 1
proc a_string {n} {
global a_string_counter
incr a_string_counter
string range [string repeat "${a_string_counter}." $n] 1 $n
}
db func a_string a_string
do_test 1-pre {
execsql {
CREATE TABLE t1(a UNIQUE, b UNIQUE);
INSERT INTO t1 VALUES(a_string(200), a_string(300));
INSERT INTO t1 SELECT a_string(200), a_string(300) FROM t1;
INSERT INTO t1 SELECT a_string(200), a_string(300) FROM t1;
}
faultsim_save_and_close
} {}
do_faultsim_test 1 -prep {
faultsim_restore_and_reopen
db func a_string a_string
execsql {
PRAGMA mmap_size = 1000000;
PRAGMA cache_size = 5;
BEGIN;
INSERT INTO t1 SELECT a_string(200), a_string(300) FROM t1;
INSERT INTO t1 SELECT a_string(200), a_string(300) FROM t1;
INSERT INTO t1 SELECT a_string(200), a_string(300) FROM t1;
INSERT INTO t1 SELECT a_string(200), a_string(300) FROM t1;
}
} -body {
execsql { INSERT INTO t1 VALUES(a_string(200), a_string(300)) }
} -test {
faultsim_test_result {0 {}}
if {[sqlite3_get_autocommit db]} {
sqlite3 db2 test.db
set nRow [db2 one {SELECT count(*) FROM t1}]
if {$nRow!=4} { error "Database content appears incorrect (1)" }
db2 close
}
execsql { INSERT INTO t1 VALUES(a_string(201), a_string(301)) }
set nRow [db one {SELECT count(*) FROM t1}]
if {$nRow!=5 && $nRow!=66 && $nRow!=65} {
error "Database content appears incorrect (2) ($nRow)"
}
catch { execsql COMMIT }
}
finish_test