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Annotation of embedaddon/sqlite3/test/walcrash3.test, revision 1.1

1.1     ! misho       1: # 2011 December 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: #
        !            12: # This test simulates an application crash immediately following a
        !            13: # system call to truncate a file. Specifically, the system call that
        !            14: # truncates the WAL file if "PRAGMA journal_size_limit" is configured.
        !            15: #
        !            16: 
        !            17: set testdir [file dirname $argv0]
        !            18: source $testdir/tester.tcl
        !            19: 
        !            20: ifcapable !wal {finish_test ; return }
        !            21: set testprefix walcrash3
        !            22: 
        !            23: db close
        !            24: testvfs tvfs
        !            25: tvfs filter {xTruncate xWrite}
        !            26: tvfs script tvfs_callback
        !            27: proc tvfs_callback {args} {}
        !            28: 
        !            29: sqlite3 db test.db -vfs tvfs
        !            30: do_execsql_test 1.1 {
        !            31:   PRAGMA page_size = 1024;
        !            32:   PRAGMA journal_mode = WAL;
        !            33:   PRAGMA wal_autocheckpoint = 128;
        !            34:   PRAGMA journal_size_limit = 16384;
        !            35: 
        !            36:   CREATE TABLE t1(a BLOB, b BLOB, UNIQUE(a, b));
        !            37:   INSERT INTO t1 VALUES(randomblob(10), randomblob(1000));
        !            38: } {wal 128 16384}
        !            39: 
        !            40: proc tvfs_callback {method file arglist} {
        !            41:   if {$::state==1} {
        !            42:     foreach f [glob -nocomplain xx_test.*] { forcedelete $f }
        !            43:     foreach f [glob -nocomplain test.*]    { forcecopy $f "xx_$f" }
        !            44:     set ::state 2
        !            45:   }
        !            46:   if {$::state==0 && $method=="xTruncate" && [file tail $file]=="test.db-wal"} {
        !            47:     set ::state 1
        !            48:   }
        !            49: }
        !            50: 
        !            51: for {set i 2} {$i<1000} {incr i} {
        !            52: 
        !            53:   # If the WAL file is truncated within the following, within the following
        !            54:   # xWrite call the [tvfs_callback] makes a copy of the database and WAL 
        !            55:   # files set sets $::state to 2. So that the copied files are in the same
        !            56:   # state as the real database and WAL files would be if an application crash 
        !            57:   # occurred immediately following the xTruncate().
        !            58:   # 
        !            59:   set ::state 0
        !            60:   do_execsql_test 1.$i.1 {
        !            61:     INSERT INTO t1 VALUES(randomblob(10), randomblob(1000));
        !            62:   }
        !            63: 
        !            64:   # If a copy was made, open it and run the integrity-check.
        !            65:   #
        !            66:   if {$::state==2} {
        !            67:     sqlite3 db2 xx_test.db
        !            68:     do_test 1.$i.2 { execsql { PRAGMA integrity_check  } db2 } "ok"
        !            69:     do_test 1.$i.3 { execsql { SELECT count(*) FROM t1 } db2 } [expr $i-1]
        !            70:     db2 close
        !            71:   }
        !            72: }
        !            73: catch { db close }
        !            74: tvfs delete
        !            75: 
        !            76: #--------------------------------------------------------------------------
        !            77: #
        !            78: catch { db close }
        !            79: forcedelete test.db
        !            80: 
        !            81: do_test 2.1 {
        !            82:   sqlite3 db test.db
        !            83:   execsql {
        !            84:     PRAGMA page_size = 512;
        !            85:     PRAGMA journal_mode = WAL;
        !            86:     PRAGMA wal_autocheckpoint = 128;
        !            87:     CREATE TABLE t1(a PRIMARY KEY, b);
        !            88:     INSERT INTO t1 VALUES(randomblob(25), randomblob(200));
        !            89:   }
        !            90: 
        !            91:   for {set i 0} {$i < 1500} {incr i} {
        !            92:     execsql { INSERT INTO t1 VALUES(randomblob(25), randomblob(200)) }
        !            93:   }
        !            94: 
        !            95:   db_save
        !            96:   db close
        !            97: } {}
        !            98: 
        !            99: set nInitialErr [set_test_counter errors]
        !           100: for {set i 2} {$i<10000 && [set_test_counter errors]==$nInitialErr} {incr i} {
        !           101: 
        !           102:   do_test 2.$i.1 {
        !           103:     catch { db close } 
        !           104:     db_restore
        !           105:     crashsql -delay 2 -file test.db-wal -seed $i {
        !           106:       SELECT * FROM sqlite_master;
        !           107:       PRAGMA synchronous = full;
        !           108:       PRAGMA wal_checkpoint;
        !           109:       BEGIN;
        !           110:         INSERT INTO t1 VALUES(randomblob(26), randomblob(200));
        !           111:         INSERT INTO t1 VALUES(randomblob(26), randomblob(200));
        !           112:         INSERT INTO t1 VALUES(randomblob(26), randomblob(200));
        !           113:         INSERT INTO t1 VALUES(randomblob(26), randomblob(200));
        !           114:         INSERT INTO t1 VALUES(randomblob(26), randomblob(200));
        !           115:         INSERT INTO t1 VALUES(randomblob(26), randomblob(200));
        !           116:         INSERT INTO t1 VALUES(randomblob(26), randomblob(200));
        !           117:         INSERT INTO t1 VALUES(randomblob(26), randomblob(200));
        !           118:       COMMIT;
        !           119:     }
        !           120:   } {1 {child process exited abnormally}}
        !           121: 
        !           122:   do_test 2.$i.2 {
        !           123:     sqlite3 db test.db
        !           124:     execsql { PRAGMA integrity_check } 
        !           125:   } {ok}
        !           126: }
        !           127: 
        !           128: finish_test
        !           129: