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103 lines
3.4 KiB
Plaintext
103 lines
3.4 KiB
Plaintext
# 2008 January 8
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#
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# The author disclaims copyright to this source code. In place of
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# a legal notice, here is a blessing:
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#
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# May you do good and not evil.
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# May you find forgiveness for yourself and forgive others.
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# May you share freely, never taking more than you give.
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#
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#***********************************************************************
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#
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# This file contains additional tests to verify that SQLite database
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# file survive a power loss or OS crash.
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#
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# $Id: crash4.test,v 1.3 2008/01/16 17:46:38 drh Exp $
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set testdir [file dirname $argv0]
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source $testdir/tester.tcl
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ifcapable !crashtest {
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finish_test
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return
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}
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# A sequence of SQL commands:
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#
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set sql_cmd_list {
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{CREATE TABLE a(id INTEGER, name CHAR(50))}
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{INSERT INTO a(id,name) VALUES(1,'one')}
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{INSERT INTO a(id,name) VALUES(2,'two')}
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{INSERT INTO a(id,name) VALUES(3,'three')}
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{INSERT INTO a(id,name) VALUES(4,'four')}
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{INSERT INTO a(id,name) VALUES(5,'five')}
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{INSERT INTO a(id,name) VALUES(6,'six')}
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{INSERT INTO a(id,name) VALUES(7,'seven')}
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{INSERT INTO a(id,name) VALUES(8,'eight')}
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{INSERT INTO a(id,name) VALUES(9,'nine')}
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{INSERT INTO a(id,name) VALUES(10,'ten')}
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{UPDATE A SET name='new text for row 3' WHERE id=3}
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}
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# Assume that a database is created by evaluating the SQL statements
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# in $sql_cmd_list. Compute a set of checksums that capture the state
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# of the database after each statement. Also include a checksum for
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# the state of the database prior to any of these statements.
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#
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set crash4_cksum_set {}
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lappend crash4_cksum_set [allcksum db]
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foreach cmd $sql_cmd_list {
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db eval $cmd
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lappend crash4_cksum_set [allcksum db]
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}
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# Run the sequence of SQL statements shown above repeatedly.
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# Close and reopen the database right before the UPDATE statement.
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# On each repetition, introduce database corruption typical of
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# what might be seen in a power loss or OS crash.
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#
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# Slowly increase the delay before the crash, repeating the test
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# over and over. Stop testing when the entire sequence of SQL
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# statements runs to completing without hitting the crash.
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#
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for {set cnt 1; set fin 0} {!$fin} {incr cnt} {
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db close
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forcedelete test.db test.db-journal
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do_test crash4-1.$cnt.1 {
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set seed [expr {int(abs(rand()*10000))}]
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set delay [expr {int($cnt/50)+1}]
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set file [expr {($cnt&1)?"test.db":"test.db-journal"}]
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set c [crashsql -delay $delay -file $file -seed $seed -tclbody {
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db eval {CREATE TABLE a(id INTEGER, name CHAR(50))}
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db eval {INSERT INTO a(id,name) VALUES(1,'one')}
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db eval {INSERT INTO a(id,name) VALUES(2,'two')}
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db eval {INSERT INTO a(id,name) VALUES(3,'three')}
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db eval {INSERT INTO a(id,name) VALUES(4,'four')}
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db eval {INSERT INTO a(id,name) VALUES(5,'five')}
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db eval {INSERT INTO a(id,name) VALUES(6,'six')}
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db eval {INSERT INTO a(id,name) VALUES(7,'seven')}
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db eval {INSERT INTO a(id,name) VALUES(8,'eight')}
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db eval {INSERT INTO a(id,name) VALUES(9,'nine')}
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db eval {INSERT INTO a(id,name) VALUES(10,'ten')}
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db close
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sqlite3 db test.db
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db eval {UPDATE A SET name='new text for row 3' WHERE id=3}
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db close
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} {}]
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if {$c==[list 0 {}]} {
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set ::fin 1
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set c [list 1 {child process exited abnormally}]
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}
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set c
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} {1 {child process exited abnormally}}
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sqlite3 db test.db
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integrity_check crash4-1.$cnt.2
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do_test crash4-1.$cnt.3 {
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set x [lsearch $::crash4_cksum_set [allcksum db]]
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expr {$x>=0}
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} {1}
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}
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finish_test
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