| Index: third_party/sqlite/src/test/crash5.test
|
| diff --git a/third_party/sqlite/src/test/crash5.test b/third_party/sqlite/src/test/crash5.test
|
| new file mode 100644
|
| index 0000000000000000000000000000000000000000..e8faa01b1721c8ee17d6e38d54d134cd723daa57
|
| --- /dev/null
|
| +++ b/third_party/sqlite/src/test/crash5.test
|
| @@ -0,0 +1,110 @@
|
| +
|
| +# 2007 Aug 13
|
| +#
|
| +# The author disclaims copyright to this source code. In place of
|
| +# a legal notice, here is a blessing:
|
| +#
|
| +# May you do good and not evil.
|
| +# May you find forgiveness for yourself and forgive others.
|
| +# May you share freely, never taking more than you give.
|
| +#
|
| +#***********************************************************************
|
| +#
|
| +# This file tests aspects of recovery from a malloc() failure
|
| +# in a CREATE INDEX statement.
|
| +#
|
| +# $Id: crash5.test,v 1.3 2008/07/12 14:52:20 drh Exp $
|
| +
|
| +set testdir [file dirname $argv0]
|
| +source $testdir/tester.tcl
|
| +
|
| +# Only run these tests if memory debugging is turned on.
|
| +#
|
| +ifcapable !memdebug||!crashtest||!memorymanage {
|
| + puts "Skipping crash5 tests: not compiled with -DSQLITE_MEMDEBUG..."
|
| + finish_test
|
| + return
|
| +}
|
| +
|
| +db close
|
| +
|
| +for {set ii 0} {$ii < 10} {incr ii} {
|
| + for {set jj 50} {$jj < 100} {incr jj} {
|
| +
|
| + # Set up the database so that it is an auto-vacuum database
|
| + # containing a single table (root page 3) with a single row.
|
| + # The row has an overflow page (page 4).
|
| + file delete -force test.db test.db-journal
|
| + sqlite3 db test.db
|
| + set c [string repeat 3 1500]
|
| + db eval {
|
| + pragma auto_vacuum = 1;
|
| + CREATE TABLE t1(a, b, c);
|
| + INSERT INTO t1 VALUES('1111111111', '2222222222', $c);
|
| + }
|
| + db close
|
| +
|
| + do_test crash5-$ii.$jj.1 {
|
| + crashsql -delay 1 -file test.db-journal -seed $ii -tclbody [join [list \
|
| + [list set iFail $jj] {
|
| + sqlite3_crashparams 0 [file join [pwd] test.db-journal]
|
| +
|
| + # Begin a transaction and evaluate a "CREATE INDEX" statement
|
| + # with the iFail'th malloc() set to fail. This operation will
|
| + # have to move the current contents of page 4 (the overflow
|
| + # page) to make room for the new root page. The bug is that
|
| + # if malloc() fails at a particular point in sqlite3PagerMovepage(),
|
| + # sqlite mistakenly thinks that the page being moved (page 4) has
|
| + # been safely synced into the journal. If the page is written
|
| + # to later in the transaction, it may be written out to the database
|
| + # before the relevant part of the journal has been synced.
|
| + #
|
| + db eval BEGIN
|
| + sqlite3_memdebug_fail $iFail -repeat 0
|
| + catch {db eval { CREATE UNIQUE INDEX i1 ON t1(a); }} msg
|
| + # puts "$n $msg ac=[sqlite3_get_autocommit db]"
|
| +
|
| + # If the transaction is still active (it may not be if the malloc()
|
| + # failure occured in the OS layer), write to the database. Make sure
|
| + # page 4 is among those written.
|
| + #
|
| + if {![sqlite3_get_autocommit db]} {
|
| + db eval {
|
| + DELETE FROM t1; -- This will put page 4 on the free list.
|
| + INSERT INTO t1 VALUES('111111111', '2222222222', '33333333');
|
| + INSERT INTO t1 SELECT * FROM t1; -- 2
|
| + INSERT INTO t1 SELECT * FROM t1; -- 4
|
| + INSERT INTO t1 SELECT * FROM t1; -- 8
|
| + INSERT INTO t1 SELECT * FROM t1; -- 16
|
| + INSERT INTO t1 SELECT * FROM t1; -- 32
|
| + INSERT INTO t1 SELECT * FROM t1 WHERE rowid%2; -- 48
|
| + }
|
| + }
|
| +
|
| + # If the right malloc() failed during the 'CREATE INDEX' above and
|
| + # the transaction was not rolled back, then the sqlite cache now
|
| + # has a dirty page 4 that it incorrectly believes is already safely
|
| + # in the synced part of the journal file. When
|
| + # sqlite3_release_memory() is called sqlite tries to free memory
|
| + # by writing page 4 out to the db file. If it crashes later on,
|
| + # before syncing the journal... Corruption!
|
| + #
|
| + sqlite3_crashparams 1 [file join [pwd] test.db-journal]
|
| + sqlite3_release_memory 8092
|
| + }]] {}
|
| + expr 1
|
| + } {1}
|
| +
|
| + sqlite3 db test.db
|
| + do_test crash5-$ii.$jj.2 {
|
| + db eval {pragma integrity_check}
|
| + } {ok}
|
| + do_test crash5-$ii.$jj.3 {
|
| + db eval {SELECT * FROM t1}
|
| + } [list 1111111111 2222222222 $::c]
|
| + db close
|
| + }
|
| +}
|
| +
|
| +
|
| +finish_test
|
|
|