95 lines
2.6 KiB
Plaintext
95 lines
2.6 KiB
Plaintext
# 2007 Dec 4
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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 is to test that ticket #2820 has been fixed.
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# Ticket #2820 observes that a DROP TABLE statement that
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# occurs while a query is in process will fail with a
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# "database is locked" error, but the entry in the sqlite_master
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# table will still be removed. This is incorrect. The
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# entry in the sqlite_master table should persist when
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# the DROP fails due to an error.
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#
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# $Id: tkt2820.test,v 1.1 2007/12/04 16:54:53 drh Exp $
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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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proc test_schema_change {testid init ddl res} {
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db close
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forcedelete test.db test.db-journal
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sqlite3 db test.db
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execsql $init
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do_test tkt2820-$testid.1 {
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set STMT [sqlite3_prepare db {SELECT * FROM sqlite_master} -1 DUMMY]
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sqlite3_step $STMT
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} {SQLITE_ROW}
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#if {$testid==3} {execsql {PRAGMA vdbe_trace=ON}}
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do_test tkt2820-$testid.2 "catchsql [list $ddl]" \
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{1 {database table is locked}}
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do_test tkt2820-$testid.3 {
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sqlite3_finalize $STMT
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execsql {SELECT name FROM sqlite_master ORDER BY 1}
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} $res
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integrity_check tkt2820-$testid.4
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db close
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sqlite3 db test.db
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integrity_check tkt2820-$testid.5
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}
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test_schema_change 1 {
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CREATE TABLE t1(a);
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} {
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DROP TABLE t1
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} {t1}
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test_schema_change 2 {
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CREATE TABLE t1(a);
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CREATE TABLE t2(b);
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} {
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DROP TABLE t2
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} {t1 t2}
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test_schema_change 3 {
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CREATE TABLE t1(a);
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CREATE INDEX i1 ON t1(a);
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} {
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DROP INDEX i1
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} {i1 t1}
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# We further observe that prior to the fix associated with ticket #2820,
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# no statement journal would be created on an SQL statement that was run
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# while a second statement was active, as long as we are in autocommit
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# mode. This is incorrect.
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#
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do_test tkt2820-4.1 {
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db close
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forcedelete test.db test.db-journal
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sqlite3 db test.db
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db eval {
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CREATE TABLE t1(a INTEGER PRIMARY KEY);
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INSERT INTO t1 VALUES(1);
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INSERT INTO t1 VALUES(2);
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}
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# The INSERT statement within the loop should fail on a
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# constraint violation on the second inserted row. This
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# should cause the entire INSERT to rollback using a statement
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# journal.
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#
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db eval {SELECT name FROM sqlite_master} {
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catch {db eval {
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INSERT INTO t1 SELECT a+1 FROM t1 ORDER BY a DESC
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}}
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}
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db eval {SELECT a FROM t1 ORDER BY a}
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} {1 2}
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finish_test
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