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go-sqlite/testdata/tcl/lock7.test
2021-12-08 11:33:15 +01:00

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# 2009 August 17
#
# 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.
#
#***********************************************************************
#
# Check that reading the database schema from within an active transaction
# does not establish a SHARED lock on the database file if one is not
# already held (or, more accurately, that the SHARED lock is released after
# reading the database schema).
#
set testdir [file dirname $argv0]
source $testdir/tester.tcl
do_test lock7-1.1 {
execsql { CREATE TABLE t1(a, b) }
db close
sqlite3 db1 test.db
sqlite3 db2 test.db
db1 eval {BEGIN}
db2 eval {BEGIN}
} {}
do_test lock7-1.2 {
execsql { PRAGMA lock_status } db1
} {main unlocked temp closed}
do_test lock7-1.3 {
execsql { PRAGMA lock_status } db2
} {main unlocked temp closed}
do_test lock7-1.4 {
catchsql { INSERT INTO t1 VALUES(1, 1) } db1
} {0 {}}
do_test lock7-1.5 {
catchsql { INSERT INTO t1 VALUES(2, 2) } db2
} {1 {database is locked}}
do_test lock7-1.6 {
execsql { PRAGMA lock_status } db1
} {main reserved temp closed}
do_test lock7-1.7 {
execsql { PRAGMA lock_status } db2
} {main unlocked temp closed}
do_test lock7-1.8 {
execsql { COMMIT } db1
} {}
db1 close
db2 close
finish_test