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| 1 # 2007 Dec 4 |
| 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 is to test that ticket #2820 has been fixed. |
| 13 # Ticket #2820 observes that a DROP TABLE statement that |
| 14 # occurs while a query is in process will fail with a |
| 15 # "database is locked" error, but the entry in the sqlite_master |
| 16 # table will still be removed. This is incorrect. The |
| 17 # entry in the sqlite_master table should persist when |
| 18 # the DROP fails due to an error. |
| 19 # |
| 20 # $Id: tkt2820.test,v 1.1 2007/12/04 16:54:53 drh Exp $ |
| 21 # |
| 22 |
| 23 set testdir [file dirname $argv0] |
| 24 source $testdir/tester.tcl |
| 25 |
| 26 proc test_schema_change {testid init ddl res} { |
| 27 db close |
| 28 file delete -force test.db test.db-journal |
| 29 sqlite3 db test.db |
| 30 execsql $init |
| 31 do_test tkt2820-$testid.1 { |
| 32 set STMT [sqlite3_prepare db {SELECT * FROM sqlite_master} -1 DUMMY] |
| 33 sqlite3_step $STMT |
| 34 } {SQLITE_ROW} |
| 35 #if {$testid==3} {execsql {PRAGMA vdbe_trace=ON}} |
| 36 do_test tkt2820-$testid.2 "catchsql [list $ddl]" \ |
| 37 {1 {database table is locked}} |
| 38 do_test tkt2820-$testid.3 { |
| 39 sqlite3_finalize $STMT |
| 40 execsql {SELECT name FROM sqlite_master ORDER BY 1} |
| 41 } $res |
| 42 integrity_check tkt2820-$testid.4 |
| 43 db close |
| 44 sqlite3 db test.db |
| 45 integrity_check tkt2820-$testid.5 |
| 46 } |
| 47 |
| 48 test_schema_change 1 { |
| 49 CREATE TABLE t1(a); |
| 50 } { |
| 51 DROP TABLE t1 |
| 52 } {t1} |
| 53 test_schema_change 2 { |
| 54 CREATE TABLE t1(a); |
| 55 CREATE TABLE t2(b); |
| 56 } { |
| 57 DROP TABLE t2 |
| 58 } {t1 t2} |
| 59 test_schema_change 3 { |
| 60 CREATE TABLE t1(a); |
| 61 CREATE INDEX i1 ON t1(a); |
| 62 } { |
| 63 DROP INDEX i1 |
| 64 } {i1 t1} |
| 65 |
| 66 # We further observe that prior to the fix associated with ticket #2820, |
| 67 # no statement journal would be created on an SQL statement that was run |
| 68 # while a second statement was active, as long as we are in autocommit |
| 69 # mode. This is incorrect. |
| 70 # |
| 71 do_test tkt2820-4.1 { |
| 72 db close |
| 73 file delete -force test.db test.db-journal |
| 74 sqlite3 db test.db |
| 75 db eval { |
| 76 CREATE TABLE t1(a INTEGER PRIMARY KEY); |
| 77 INSERT INTO t1 VALUES(1); |
| 78 INSERT INTO t1 VALUES(2); |
| 79 } |
| 80 |
| 81 # The INSERT statement within the loop should fail on a |
| 82 # constraint violation on the second inserted row. This |
| 83 # should cause the entire INSERT to rollback using a statement |
| 84 # journal. |
| 85 # |
| 86 db eval {SELECT name FROM sqlite_master} { |
| 87 catch {db eval { |
| 88 INSERT INTO t1 SELECT a+1 FROM t1 ORDER BY a DESC |
| 89 }} |
| 90 } |
| 91 db eval {SELECT a FROM t1 ORDER BY a} |
| 92 } {1 2} |
| 93 |
| 94 finish_test |
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