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| 1 # 2010 September 20 | |
| 2 # | |
| 3 # The author disclaims copyright to this source code. In place of | |
| 4 # a legal notice, here is a blessing: | |
| 5 # | |
| 6 # May you do good and not evil. | |
| 7 # May you find forgiveness for yourself and forgive others. | |
| 8 # May you share freely, never taking more than you give. | |
| 9 # | |
| 10 #*********************************************************************** | |
| 11 # This file implements regression tests for SQLite library. | |
| 12 # | |
| 13 # This file implements tests to verify that ticket [313723c356] has been | |
| 14 # fixed. | |
| 15 # | |
| 16 | |
| 17 set testdir [file dirname $argv0] | |
| 18 source $testdir/tester.tcl | |
| 19 source $testdir/malloc_common.tcl | |
| 20 | |
| 21 ifcapable !wal { finish_test ; return } | |
| 22 | |
| 23 do_execsql_test tkt-313723c356.1 { | |
| 24 PRAGMA page_size = 1024; | |
| 25 PRAGMA journal_mode = WAL; | |
| 26 CREATE TABLE t1(a, b); | |
| 27 CREATE INDEX i1 ON t1(a, b); | |
| 28 INSERT INTO t1 VALUES(randomblob(400), randomblob(400)); | |
| 29 INSERT INTO t1 SELECT randomblob(400), randomblob(400) FROM t1; | |
| 30 INSERT INTO t1 SELECT randomblob(400), randomblob(400) FROM t1; | |
| 31 INSERT INTO t1 SELECT randomblob(400), randomblob(400) FROM t1; | |
| 32 INSERT INTO t1 SELECT randomblob(400), randomblob(400) FROM t1; | |
| 33 } {wal} | |
| 34 faultsim_save_and_close | |
| 35 | |
| 36 do_faultsim_test tkt-313723c356.2 -faults shmerr* -prep { | |
| 37 faultsim_restore_and_reopen | |
| 38 sqlite3 db2 test.db | |
| 39 db eval { SELECT * FROM t1 } | |
| 40 db2 eval { UPDATE t1 SET a = randomblob(399) } | |
| 41 db2 close | |
| 42 } -body { | |
| 43 # At this point, the cache contains all of table t1 and none of index i1. The | |
| 44 # cache is out of date. When the bug existed and the right xShmLock() fails | |
| 45 # in the following statement, the internal cache of the WAL header was | |
| 46 # being updated, but the contents of the page-cache not flushed. This causes | |
| 47 # the integrity-check in the "-test" code to fail, as it is comparing the | |
| 48 # cached (out-of-date) version of table t1 with the on disk (up-to-date) | |
| 49 # version of index i1. | |
| 50 # | |
| 51 execsql { SELECT min(rowid) FROM t1 } | |
| 52 } -test { | |
| 53 faultsim_test_result {0 1} | |
| 54 faultsim_integrity_check | |
| 55 } | |
| 56 | |
| 57 finish_test | |
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