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# 2010 September 20
#
# 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.
#
#***********************************************************************
# This file implements regression tests for SQLite library.
#
# This file implements tests to verify that ticket [313723c356] has been
# fixed.
#
set testdir [file dirname $argv0]
source $testdir/tester.tcl
source $testdir/malloc_common.tcl
if {![wal_is_capable]} { finish_test ; return }
do_execsql_test tkt-313723c356.1 {
PRAGMA page_size = 1024;
PRAGMA journal_mode = WAL;
CREATE TABLE t1(a, b);
CREATE INDEX i1 ON t1(a, b);
INSERT INTO t1 VALUES(randomblob(400), randomblob(400));
INSERT INTO t1 SELECT randomblob(400), randomblob(400) FROM t1;
INSERT INTO t1 SELECT randomblob(400), randomblob(400) FROM t1;
INSERT INTO t1 SELECT randomblob(400), randomblob(400) FROM t1;
INSERT INTO t1 SELECT randomblob(400), randomblob(400) FROM t1;
} {wal}
faultsim_save_and_close
do_faultsim_test tkt-313723c356.2 -faults shmerr* -prep {
faultsim_restore_and_reopen
sqlite3 db2 test.db
db eval { SELECT * FROM t1 }
db2 eval { UPDATE t1 SET a = randomblob(399) }
db2 close
} -body {
# At this point, the cache contains all of table t1 and none of index i1. The
# cache is out of date. When the bug existed and the right xShmLock() fails
# in the following statement, the internal cache of the WAL header was
# being updated, but the contents of the page-cache not flushed. This causes
# the integrity-check in the "-test" code to fail, as it is comparing the
# cached (out-of-date) version of table t1 with the on disk (up-to-date)
# version of index i1.
#
execsql { SELECT min(rowid) FROM t1 }
} -test {
faultsim_test_result {0 1}
faultsim_integrity_check
}
finish_test
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