# 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 The # cache is out of date.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 This causes # the integrity-check in the "-test" code to fail, as it is comparing the # cached (out-of-date) version of table t1 with the on disk (up-to-date) # version of index i1.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