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129 lines
3.7 KiB
Plaintext
129 lines
3.7 KiB
Plaintext
# 2011 December 16
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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 test simulates an application crash immediately following a
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# system call to truncate a file. Specifically, the system call that
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# truncates the WAL file if "PRAGMA journal_size_limit" is configured.
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#
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set testdir [file dirname $argv0]
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source $testdir/tester.tcl
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ifcapable !wal {finish_test ; return }
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set testprefix walcrash3
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db close
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testvfs tvfs
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tvfs filter {xTruncate xWrite}
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tvfs script tvfs_callback
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proc tvfs_callback {args} {}
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sqlite3 db test.db -vfs tvfs
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do_execsql_test 1.1 {
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PRAGMA page_size = 1024;
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PRAGMA journal_mode = WAL;
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PRAGMA wal_autocheckpoint = 128;
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PRAGMA journal_size_limit = 16384;
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CREATE TABLE t1(a BLOB, b BLOB, UNIQUE(a, b));
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INSERT INTO t1 VALUES(randomblob(10), randomblob(1000));
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} {wal 128 16384}
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proc tvfs_callback {method file arglist} {
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if {$::state==1} {
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foreach f [glob -nocomplain xx_test.*] { forcedelete $f }
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foreach f [glob -nocomplain test.*] { forcecopy $f "xx_$f" }
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set ::state 2
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}
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if {$::state==0 && $method=="xTruncate" && [file tail $file]=="test.db-wal"} {
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set ::state 1
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}
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}
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for {set i 2} {$i<1000} {incr i} {
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# If the WAL file is truncated within the following, within the following
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# xWrite call the [tvfs_callback] makes a copy of the database and WAL
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# files set sets $::state to 2. So that the copied files are in the same
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# state as the real database and WAL files would be if an application crash
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# occurred immediately following the xTruncate().
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#
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set ::state 0
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do_execsql_test 1.$i.1 {
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INSERT INTO t1 VALUES(randomblob(10), randomblob(1000));
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}
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# If a copy was made, open it and run the integrity-check.
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#
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if {$::state==2} {
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sqlite3 db2 xx_test.db
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do_test 1.$i.2 { execsql { PRAGMA integrity_check } db2 } "ok"
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do_test 1.$i.3 { execsql { SELECT count(*) FROM t1 } db2 } [expr $i-1]
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db2 close
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}
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}
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catch { db close }
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tvfs delete
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#--------------------------------------------------------------------------
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#
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catch { db close }
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forcedelete test.db
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do_test 2.1 {
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sqlite3 db test.db
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execsql {
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PRAGMA page_size = 512;
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PRAGMA journal_mode = WAL;
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PRAGMA wal_autocheckpoint = 128;
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CREATE TABLE t1(a PRIMARY KEY, b);
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INSERT INTO t1 VALUES(randomblob(25), randomblob(200));
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}
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for {set i 0} {$i < 1500} {incr i} {
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execsql { INSERT INTO t1 VALUES(randomblob(25), randomblob(200)) }
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}
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db_save
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db close
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} {}
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set nInitialErr [set_test_counter errors]
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for {set i 2} {$i<10000 && [set_test_counter errors]==$nInitialErr} {incr i} {
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do_test 2.$i.1 {
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catch { db close }
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db_restore
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crashsql -delay 2 -file test.db-wal -seed $i {
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SELECT * FROM sqlite_master;
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PRAGMA synchronous = full;
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PRAGMA wal_checkpoint;
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BEGIN;
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INSERT INTO t1 VALUES(randomblob(26), randomblob(200));
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INSERT INTO t1 VALUES(randomblob(26), randomblob(200));
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INSERT INTO t1 VALUES(randomblob(26), randomblob(200));
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INSERT INTO t1 VALUES(randomblob(26), randomblob(200));
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INSERT INTO t1 VALUES(randomblob(26), randomblob(200));
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INSERT INTO t1 VALUES(randomblob(26), randomblob(200));
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INSERT INTO t1 VALUES(randomblob(26), randomblob(200));
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INSERT INTO t1 VALUES(randomblob(26), randomblob(200));
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COMMIT;
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}
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} {1 {child process exited abnormally}}
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do_test 2.$i.2 {
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sqlite3 db test.db
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execsql { PRAGMA integrity_check }
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} {ok}
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}
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finish_test
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