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270 lines
5.8 KiB
Plaintext
270 lines
5.8 KiB
Plaintext
# 2010 December 1
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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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# This file implements regression tests for SQLite library. The
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# focus of this file is testing the operation of the library in
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# "PRAGMA journal_mode=WAL" mode.
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#
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set testdir [file dirname $argv0]
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set testprefix wal6
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source $testdir/tester.tcl
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source $testdir/lock_common.tcl
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source $testdir/wal_common.tcl
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source $testdir/malloc_common.tcl
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ifcapable !wal {finish_test ; return }
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#-------------------------------------------------------------------------
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# Changing to WAL mode in one connection forces the change in others.
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#
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db close
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forcedelete test.db
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set all_journal_modes {delete persist truncate memory off}
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foreach jmode $all_journal_modes {
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do_test wal6-1.0.$jmode {
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sqlite3 db test.db
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execsql "PRAGMA journal_mode = $jmode;"
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} $jmode
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do_test wal6-1.1.$jmode {
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execsql {
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CREATE TABLE t1(a INTEGER PRIMARY KEY, b);
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INSERT INTO t1 VALUES(1,2);
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SELECT * FROM t1;
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}
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} {1 2}
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# Under Windows, you'll get an error trying to delete
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# a file this is already opened. Close the first connection
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# so the other tests work.
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if {$tcl_platform(platform)=="windows"} {
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if {$jmode=="persist" || $jmode=="truncate"} {
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db close
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}
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}
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do_test wal6-1.2.$jmode {
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sqlite3 db2 test.db
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execsql {
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PRAGMA journal_mode=WAL;
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INSERT INTO t1 VALUES(3,4);
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SELECT * FROM t1 ORDER BY a;
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} db2
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} {wal 1 2 3 4}
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if {$tcl_platform(platform)=="windows"} {
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if {$jmode=="persist" || $jmode=="truncate"} {
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sqlite3 db test.db
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}
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}
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do_test wal6-1.3.$jmode {
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execsql {
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SELECT * FROM t1 ORDER BY a;
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}
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} {1 2 3 4}
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db close
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db2 close
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forcedelete test.db
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}
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#-------------------------------------------------------------------------
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# Test that SQLITE_BUSY_SNAPSHOT is returned as expected.
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#
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reset_db
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sqlite3 db2 test.db
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do_execsql_test 2.1 {
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PRAGMA journal_mode = WAL;
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CREATE TABLE t1(a PRIMARY KEY, b TEXT);
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INSERT INTO t1 VALUES(1, 'one');
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INSERT INTO t1 VALUES(2, 'two');
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BEGIN;
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SELECT * FROM t1;
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} {wal 1 one 2 two}
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do_test 2.2 {
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execsql {
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SELECT * FROM t1;
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INSERT INTO t1 VALUES(3, 'three');
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} db2
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} {1 one 2 two}
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do_catchsql_test 2.3 {
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INSERT INTO t1 VALUES('x', 'x')
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} {1 {database is locked}}
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do_test 2.4 {
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list [sqlite3_errcode db] [sqlite3_extended_errcode db]
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} {SQLITE_BUSY SQLITE_BUSY_SNAPSHOT}
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do_execsql_test 2.5 {
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SELECT * FROM t1;
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COMMIT;
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INSERT INTO t1 VALUES('x', 'x')
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} {1 one 2 two}
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proc test3 {prefix} {
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do_test $prefix.1 {
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execsql { SELECT count(*) FROM t1 }
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} {0}
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do_test $prefix.2 {
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execsql { INSERT INTO t1 VALUES('x', 'x') } db2
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} {}
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do_test $prefix.3 {
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execsql { INSERT INTO t1 VALUES('y', 'y') }
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} {}
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do_test $prefix.4 {
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execsql { SELECT count(*) FROM t1 }
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} {2}
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}
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do_execsql_test 2.6.1 { DELETE FROM t1 }
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test3 2.6.2
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db func test3 test3
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do_execsql_test 2.6.3 { DELETE FROM t1 }
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db eval {SELECT test3('2.6.4')}
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do_test 2.x {
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db2 close
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} {}
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#-------------------------------------------------------------------------
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# Check that if BEGIN IMMEDIATE fails, it does not leave the user with
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# an open read-transaction (unless one was already open before the BEGIN
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# IMMEDIATE). Even if there are other active VMs.
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#
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proc test4 {prefix} {
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do_test $prefix.1 {
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catchsql { BEGIN IMMEDIATE }
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} {1 {database is locked}}
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do_test $prefix.2 {
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execsql { COMMIT } db2
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} {}
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do_test $prefix.3 {
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execsql { BEGIN IMMEDIATE }
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} {}
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do_test $prefix.4 {
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execsql { COMMIT }
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} {}
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}
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reset_db
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sqlite3 db2 test.db
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do_execsql_test 3.1 {
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PRAGMA journal_mode = WAL;
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CREATE TABLE ab(a PRIMARY KEY, b);
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} {wal}
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do_test 3.2.1 {
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execsql {
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BEGIN;
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INSERT INTO ab VALUES(1, 2);
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} db2
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} {}
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test4 3.2.2
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db func test4 test4
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do_test 3.3.1 {
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execsql {
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BEGIN;
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INSERT INTO ab VALUES(3, 4);
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} db2
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} {}
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db eval {SELECT test4('3.3.2')}
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do_test 3.x {
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db2 close
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} {}
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#-------------------------------------------------------------------------
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# Check that if a wal file has been partially checkpointed, no frames are
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# read from the checkpointed part.
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#
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reset_db
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do_execsql_test 4.1 {
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PRAGMA page_size = 1024;
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PRAGMA journal_mode = wal;
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CREATE TABLE t1(a, b);
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CREATE TABLE t2(a, b);
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PRAGMA wal_checkpoint = truncate;
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} {wal 0 0 0}
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do_test 4.2 {
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execsql { INSERT INTO t1 VALUES(1, 2) }
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file size test.db-wal
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} [wal_file_size 1 1024]
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do_test 4.3 {
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sqlite3 db2 test.db
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execsql {
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BEGIN;
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INSERT INTO t2 VALUES(3, 4);
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}
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execsql { PRAGMA wal_checkpoint = passive } db2
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} {0 1 1}
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do_test 4.3 {
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execsql { COMMIT }
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db2 close
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hexio_write test.db-wal 0 [string repeat 00 2000]
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sqlite3 db2 test.db
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} {}
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do_test 4.4.1 {
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catchsql { SELECT * FROM t1 } db2
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} {0 {1 2}}
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do_test 4.4.2 {
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catchsql { SELECT * FROM t2 } db2
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} {1 {database disk image is malformed}}
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#-------------------------------------------------------------------------
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# Confirm that it is possible to get an SQLITE_BUSY_SNAPSHOT error from
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# "BEGIN EXCLUSIVE" if the connection already has an open read-transaction.
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#
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db close
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db2 close
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reset_db
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sqlite3 db2 test.db
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do_execsql_test 5.1 {
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PRAGMA journal_mode = wal;
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CREATE TABLE t1(x, y);
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INSERT INTO t1 VALUES(1, 2);
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INSERT INTO t1 VALUES(3, 4);
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} {wal}
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do_test 5.2 {
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set res [list]
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db eval {
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SELECT * FROM t1
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} {
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if {$x==1} {
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db2 eval { INSERT INTO t1 VALUES(5, 6) }
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}
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if {$x==3} {
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set res [catchsql {BEGIN EXCLUSIVE}]
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lappend res [sqlite3_extended_errcode db]
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}
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}
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set res
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} {1 {database is locked} SQLITE_BUSY_SNAPSHOT}
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finish_test
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