# 2010 December 1 # # 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 implements regression tests for SQLite library. The # focus of this file is testing the operation of the library in # "PRAGMA journal_mode=WAL" mode. # set testdir [file dirname $argv0] set testprefix wal6 source $testdir/tester.tcl source $testdir/lock_common.tcl source $testdir/wal_common.tcl source $testdir/malloc_common.tcl ifcapable !wal {finish_test ; return } #------------------------------------------------------------------------- # Changing to WAL mode in one connection forces the change in others. # db close forcedelete test.db set all_journal_modes {delete persist truncate memory off} foreach jmode $all_journal_modes { do_test wal6-1.0.$jmode { sqlite3 db test.db execsql "PRAGMA journal_mode = $jmode;" } $jmode do_test wal6-1.1.$jmode { execsql { CREATE TABLE t1(a INTEGER PRIMARY KEY, b); INSERT INTO t1 VALUES(1,2); SELECT * FROM t1; } } {1 2} # Under Windows, you'll get an error trying to delete # a file this is already opened. Close the first connection # so the other tests work. if {$tcl_platform(platform)=="windows"} { if {$jmode=="persist" || $jmode=="truncate"} { db close } } do_test wal6-1.2.$jmode { sqlite3 db2 test.db execsql { PRAGMA journal_mode=WAL; INSERT INTO t1 VALUES(3,4); SELECT * FROM t1 ORDER BY a; } db2 } {wal 1 2 3 4} if {$tcl_platform(platform)=="windows"} { if {$jmode=="persist" || $jmode=="truncate"} { sqlite3 db test.db } } do_test wal6-1.3.$jmode { execsql { SELECT * FROM t1 ORDER BY a; } } {1 2 3 4} db close db2 close forcedelete test.db } #------------------------------------------------------------------------- # Test that SQLITE_BUSY_SNAPSHOT is returned as expected. # reset_db sqlite3 db2 test.db do_execsql_test 2.1 { PRAGMA journal_mode = WAL; CREATE TABLE t1(a PRIMARY KEY, b TEXT); INSERT INTO t1 VALUES(1, 'one'); INSERT INTO t1 VALUES(2, 'two'); BEGIN; SELECT * FROM t1; } {wal 1 one 2 two} do_test 2.2 { execsql { SELECT * FROM t1; INSERT INTO t1 VALUES(3, 'three'); } db2 } {1 one 2 two} do_catchsql_test 2.3 { INSERT INTO t1 VALUES('x', 'x') } {1 {database is locked}} do_test 2.4 { list [sqlite3_errcode db] [sqlite3_extended_errcode db] } {SQLITE_BUSY SQLITE_BUSY_SNAPSHOT} do_execsql_test 2.5 { SELECT * FROM t1; COMMIT; INSERT INTO t1 VALUES('x', 'x') } {1 one 2 two} proc test3 {prefix} { do_test $prefix.1 { execsql { SELECT count(*) FROM t1 } } {0} do_test $prefix.2 { execsql { INSERT INTO t1 VALUES('x', 'x') } db2 } {} do_test $prefix.3 { execsql { INSERT INTO t1 VALUES('y', 'y') } } {} do_test $prefix.4 { execsql { SELECT count(*) FROM t1 } } {2} } do_execsql_test 2.6.1 { DELETE FROM t1 } test3 2.6.2 db func test3 test3 do_execsql_test 2.6.3 { DELETE FROM t1 } db eval {SELECT test3('2.6.4')} do_test 2.x { db2 close } {} #------------------------------------------------------------------------- # Check that if BEGIN IMMEDIATE fails, it does not leave the user with # an open read-transaction (unless one was already open before the BEGIN # IMMEDIATE). Even if there are other active VMs. # proc test4 {prefix} { do_test $prefix.1 { catchsql { BEGIN IMMEDIATE } } {1 {database is locked}} do_test $prefix.2 { execsql { COMMIT } db2 } {} do_test $prefix.3 { execsql { BEGIN IMMEDIATE } } {} do_test $prefix.4 { execsql { COMMIT } } {} } reset_db sqlite3 db2 test.db do_execsql_test 3.1 { PRAGMA journal_mode = WAL; CREATE TABLE ab(a PRIMARY KEY, b); } {wal} do_test 3.2.1 { execsql { BEGIN; INSERT INTO ab VALUES(1, 2); } db2 } {} test4 3.2.2 db func test4 test4 do_test 3.3.1 { execsql { BEGIN; INSERT INTO ab VALUES(3, 4); } db2 } {} db eval {SELECT test4('3.3.2')} do_test 3.x { db2 close } {} #------------------------------------------------------------------------- # Check that if a wal file has been partially checkpointed, no frames are # read from the checkpointed part. # reset_db do_execsql_test 4.1 { PRAGMA page_size = 1024; PRAGMA journal_mode = wal; CREATE TABLE t1(a, b); CREATE TABLE t2(a, b); PRAGMA wal_checkpoint = truncate; } {wal 0 0 0} do_test 4.2 { execsql { INSERT INTO t1 VALUES(1, 2) } file size test.db-wal } [wal_file_size 1 1024] do_test 4.3 { sqlite3 db2 test.db execsql { BEGIN; INSERT INTO t2 VALUES(3, 4); } execsql { PRAGMA wal_checkpoint = passive } db2 } {0 1 1} do_test 4.3 { execsql { COMMIT } db2 close hexio_write test.db-wal 0 [string repeat 00 2000] sqlite3 db2 test.db } {} do_test 4.4.1 { catchsql { SELECT * FROM t1 } db2 } {0 {1 2}} do_test 4.4.2 { catchsql { SELECT * FROM t2 } db2 } {1 {database disk image is malformed}} finish_test