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Annotation of embedaddon/sqlite3/test/tkt-fc62af4523.test, revision 1.1

1.1     ! misho       1: # 2010 June 16
        !             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. Specifically,
        !            12: # it tests that ticket [fc62af4523] has been resolved.
        !            13: #
        !            14: 
        !            15: set testdir [file dirname $argv0]
        !            16: source $testdir/tester.tcl
        !            17: source $testdir/lock_common.tcl
        !            18: source $testdir/malloc_common.tcl
        !            19: 
        !            20: do_test tkt-fc62af4523.1 {
        !            21:   execsql {
        !            22:     PRAGMA cache_size = 10;
        !            23:     PRAGMA journal_mode = persist;
        !            24:     CREATE TABLE t1(a UNIQUE, b UNIQUE);
        !            25:     INSERT INTO t1 SELECT randomblob(200), randomblob(300);
        !            26:     INSERT INTO t1 SELECT randomblob(200), randomblob(300) FROM t1; --  2
        !            27:     INSERT INTO t1 SELECT randomblob(200), randomblob(300) FROM t1; --  4
        !            28:     INSERT INTO t1 SELECT randomblob(200), randomblob(300) FROM t1; --  8
        !            29:     INSERT INTO t1 SELECT randomblob(200), randomblob(300) FROM t1; -- 16
        !            30:     INSERT INTO t1 SELECT randomblob(200), randomblob(300) FROM t1; -- 32
        !            31:     INSERT INTO t1 SELECT randomblob(200), randomblob(300) FROM t1; -- 64
        !            32:   }
        !            33:   execsql {
        !            34:     PRAGMA integrity_check;
        !            35:     SELECT count(*) FROM t1;
        !            36:   }
        !            37: } {ok 64}
        !            38: 
        !            39: # Launch an external process. Have it write (but not commit) a large
        !            40: # transaction to the database.
        !            41: #
        !            42: set ::chan [launch_testfixture]
        !            43: proc buddy {code} { testfixture $::chan $code }
        !            44: do_test tkt-fc62af4523.2 {
        !            45:   testfixture $::chan {
        !            46:     sqlite3 db test.db
        !            47:     db eval {
        !            48:       PRAGMA cache_size = 10;
        !            49:       BEGIN;
        !            50:         UPDATE t1 SET b = randomblob(400);
        !            51:         UPDATE t1 SET a = randomblob(201);
        !            52:     }
        !            53:   }
        !            54:   file exists test.db-journal
        !            55: } {1}
        !            56: 
        !            57: # Now do "PRAGMA journal_mode = DELETE" in this process. At one point
        !            58: # this was causing SQLite to delete the journal file from the file-system,
        !            59: # even though the external process is currently using it.
        !            60: #
        !            61: do_test tkt-fc62af4523.3 { execsql { PRAGMA journal_mode = DELETE } } {delete}
        !            62: do_test tkt-fc62af4523.4 { file exists test.db-journal } {1}
        !            63: 
        !            64: # Cause the external process to crash. Since it has already written 
        !            65: # uncommitted data into the database file, the next reader will have
        !            66: # to do a hot-journal rollback to recover the database.
        !            67: #
        !            68: # Or, if this test is run in a version with the bug present, the journal
        !            69: # file has already been deleted. In this case we are left with a corrupt
        !            70: # database file and no hot-journal to fix it with.
        !            71: #
        !            72: do_test tkt-fc62af4523.5 {
        !            73:   testfixture $::chan sqlite_abort
        !            74: } {ERROR: Child process hung up}
        !            75: after 200
        !            76: do_test tkt-fc62af4523.6 {
        !            77:   execsql {
        !            78:     PRAGMA integrity_check;
        !            79:     SELECT count(*) FROM t1;
        !            80:   }
        !            81: } {ok 64}
        !            82: 
        !            83: catch { close $::chan }
        !            84: finish_test