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# 2012 February 28
#
# 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.
#
# Specifically, it tests the case where a connection opens an empty
# file. Then, another connection opens the same file and initializes
# the connection as a WAL database. Following this, the first connection
# executes a "PRAGMA page_size = XXX" command to set its expected page
# size, and then queries the database.
#
# This is an unusual case, as normally SQLite is able to glean the page
# size from the database file as soon as it is opened (even before the
# first read transaction is executed), and the "PRAGMA page_size = XXX"
# is a no-op.
#
set testdir [file dirname $argv0]
source $testdir/tester.tcl
set ::testprefix wal8
ifcapable !wal {finish_test ; return }
do_not_use_codec
db close
forcedelete test.db test.db-wal
sqlite3 db test.db
sqlite3 db2 test.db
do_test 1.0 {
execsql {
PRAGMA journal_mode = wal;
CREATE TABLE t1(a, b);
INSERT INTO t1 VALUES(1, 2);
} db2
} {wal}
do_catchsql_test 1.1 {
PRAGMA page_size = 4096;
VACUUM;
} {0 {}}
db close
db2 close
forcedelete test.db test.db-wal
sqlite3 db test.db
sqlite3 db2 test.db
do_test 2.0 {
execsql {
CREATE TABLE t1(a, b);
INSERT INTO t1 VALUES(1, 2);
PRAGMA journal_mode = wal;
} db2
} {wal}
do_catchsql_test 2.1 {
PRAGMA page_size = 4096;
VACUUM;
} {0 {}}
db close
db2 close
forcedelete test.db test.db-wal
sqlite3 db test.db
sqlite3 db2 test.db
do_test 3.0 {
execsql {
PRAGMA journal_mode = wal;
CREATE TABLE t1(a, b);
INSERT INTO t1 VALUES(1, 2);
} db2
} {wal}
do_execsql_test 3.1 {
PRAGMA page_size = 4096;
SELECT name FROM sqlite_master;
} {t1}
finish_test
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