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Annotation of embedaddon/sqlite3/test/crash4.test, revision 1.1

1.1     ! misho       1: # 2008 January 8
        !             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 file contains additional tests to verify that SQLite database
        !            13: # file survive a power loss or OS crash.
        !            14: #
        !            15: # $Id: crash4.test,v 1.3 2008/01/16 17:46:38 drh Exp $
        !            16: 
        !            17: set testdir [file dirname $argv0]
        !            18: source $testdir/tester.tcl
        !            19: 
        !            20: ifcapable !crashtest {
        !            21:   finish_test
        !            22:   return
        !            23: }
        !            24: 
        !            25: 
        !            26: # A sequence of SQL commands:
        !            27: #
        !            28: set sql_cmd_list {
        !            29:   {CREATE TABLE a(id INTEGER, name CHAR(50))}
        !            30:   {INSERT INTO a(id,name) VALUES(1,'one')}
        !            31:   {INSERT INTO a(id,name) VALUES(2,'two')}
        !            32:   {INSERT INTO a(id,name) VALUES(3,'three')}
        !            33:   {INSERT INTO a(id,name) VALUES(4,'four')}
        !            34:   {INSERT INTO a(id,name) VALUES(5,'five')}
        !            35:   {INSERT INTO a(id,name) VALUES(6,'six')}
        !            36:   {INSERT INTO a(id,name) VALUES(7,'seven')}
        !            37:   {INSERT INTO a(id,name) VALUES(8,'eight')}
        !            38:   {INSERT INTO a(id,name) VALUES(9,'nine')}
        !            39:   {INSERT INTO a(id,name) VALUES(10,'ten')}
        !            40:   {UPDATE A SET name='new text for row 3' WHERE id=3}
        !            41: }
        !            42: 
        !            43: # Assume that a database is created by evaluating the SQL statements
        !            44: # in $sql_cmd_list.  Compute a set of checksums that capture the state
        !            45: # of the database after each statement.  Also include a checksum for
        !            46: # the state of the database prior to any of these statements.
        !            47: #
        !            48: set crash4_cksum_set {}
        !            49: lappend crash4_cksum_set [allcksum db]
        !            50: foreach cmd $sql_cmd_list {
        !            51:   db eval $cmd
        !            52:   lappend crash4_cksum_set [allcksum db]
        !            53: }
        !            54: 
        !            55: # Run the sequence of SQL statements shown above repeatedly.
        !            56: # Close and reopen the database right before the UPDATE statement.
        !            57: # On each repetition, introduce database corruption typical of
        !            58: # what might be seen in a power loss or OS crash.  
        !            59: #
        !            60: # Slowly increase the delay before the crash, repeating the test
        !            61: # over and over.  Stop testing when the entire sequence of SQL
        !            62: # statements runs to completing without hitting the crash.
        !            63: #
        !            64: for {set cnt 1; set fin 0} {!$fin} {incr cnt} {
        !            65:   db close
        !            66:   forcedelete test.db test.db-journal
        !            67:   do_test crash4-1.$cnt.1 {
        !            68:     set seed [expr {int(abs(rand()*10000))}]
        !            69:     set delay [expr {int($cnt/50)+1}]
        !            70:     set file [expr {($cnt&1)?"test.db":"test.db-journal"}]
        !            71:     set c [crashsql -delay $delay -file $file -seed $seed -tclbody {
        !            72:       db eval {CREATE TABLE a(id INTEGER, name CHAR(50))}
        !            73:       db eval {INSERT INTO a(id,name) VALUES(1,'one')}
        !            74:       db eval {INSERT INTO a(id,name) VALUES(2,'two')}
        !            75:       db eval {INSERT INTO a(id,name) VALUES(3,'three')}
        !            76:       db eval {INSERT INTO a(id,name) VALUES(4,'four')}
        !            77:       db eval {INSERT INTO a(id,name) VALUES(5,'five')}
        !            78:       db eval {INSERT INTO a(id,name) VALUES(6,'six')}
        !            79:       db eval {INSERT INTO a(id,name) VALUES(7,'seven')}
        !            80:       db eval {INSERT INTO a(id,name) VALUES(8,'eight')}
        !            81:       db eval {INSERT INTO a(id,name) VALUES(9,'nine')}
        !            82:       db eval {INSERT INTO a(id,name) VALUES(10,'ten')}
        !            83:       db close
        !            84:       sqlite3 db test.db
        !            85:       db eval {UPDATE A SET name='new text for row 3' WHERE id=3}
        !            86:       db close
        !            87:     } {}]
        !            88:     if {$c==[list 0 {}]} {
        !            89:       set ::fin 1
        !            90:       set c [list 1 {child process exited abnormally}]
        !            91:     }
        !            92:     set c
        !            93:   } {1 {child process exited abnormally}}
        !            94:   sqlite3 db test.db
        !            95:   integrity_check crash4-1.$cnt.2
        !            96:   do_test crash4-1.$cnt.3 {
        !            97:     set x [lsearch $::crash4_cksum_set [allcksum db]]
        !            98:     expr {$x>=0}
        !            99:   } {1}
        !           100: }
        !           101: 
        !           102: finish_test