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# 2022-12-05
#
# 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 the "memdb" VFS
#
set testdir [file dirname $argv0]
source $testdir/tester.tcl
set testprefix memdb2
do_not_use_codec
ifcapable !deserialize {
finish_test
return
}
db close
#-------------------------------------------------------------------------
# Test that when using a memdb database, it is not possible to upgrade
# to an EXCLUSIVE lock if some other client is holding SHARED.
#
foreach {tn fname} {
1 file:/test.db?vfs=memdb
2 file:\\test.db?vfs=memdb
} {
if {$tn==2} breakpoint
sqlite3 db $fname -uri 1
sqlite3 db2 $fname -uri 1
do_execsql_test 1.$tn.1 {
CREATE TABLE t1(x, y);
INSERT INTO t1 VALUES(1, 2);
}
do_execsql_test -db db2 1.$tn.2 {
BEGIN;
SELECT * FROM t1;
} {1 2}
do_execsql_test 1.$tn.3 {
BEGIN;
INSERT INTO t1 VALUES(3, 4);
}
do_catchsql_test 1.$tn.4 {
COMMIT
} {1 {database is locked}}
do_execsql_test -db db2 1.$tn.5 {
SELECT * FROM t1;
END;
} {1 2}
do_execsql_test 1.$tn.6 {
COMMIT
} {}
do_execsql_test -db db2 1.$tn.7 {
SELECT * FROM t1
} {1 2 3 4}
db close
db2 close
}
finish_test
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