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Annotation of embedaddon/sqlite3/test/lock3.test, revision 1.1.1.1

1.1       misho       1: # 2001 September 15
                      2: #
                      3: # The author disclaims copyright to this source code.  In place of
                      4: # a legal notice, here is a blessing:
                      5: #
                      6: #    May you do good and not evil.
                      7: #    May you find forgiveness for yourself and forgive others.
                      8: #    May you share freely, never taking more than you give.
                      9: #
                     10: #***********************************************************************
                     11: # This file implements regression tests for SQLite library.  The
                     12: # focus of this script is database locks and the operation of the
                     13: # DEFERRED, IMMEDIATE, and EXCLUSIVE keywords as modifiers to the
                     14: # BEGIN command.
                     15: #
                     16: # $Id: lock3.test,v 1.4 2009/03/28 15:04:24 drh Exp $
                     17: 
                     18: 
                     19: set testdir [file dirname $argv0]
                     20: source $testdir/tester.tcl
                     21: 
                     22: # Establish two connections to the same database.  Put some
                     23: # sample data into the database.
                     24: #
                     25: do_test lock3-1.1 {
                     26:   file mkdir tempdir/t1/t2/t3
                     27:   sqlite3 db2 ./tempdir/t1//t2/./t3//./../..//./../../tempdir/..//test.db//
                     28:   execsql {
                     29:     CREATE TABLE t1(a);
                     30:     INSERT INTO t1 VALUES(1);
                     31:   }
                     32:   execsql {
                     33:     SELECT * FROM t1
                     34:   } db2
                     35: } 1
                     36: 
                     37: # Get a deferred lock on the database using one connection.  The
                     38: # other connection should still be able to write.
                     39: #
                     40: do_test lock3-2.1 {
                     41:   execsql {BEGIN DEFERRED TRANSACTION}
                     42:   execsql {INSERT INTO t1 VALUES(2)} db2
                     43:   execsql {END TRANSACTION}
                     44:   execsql {SELECT * FROM t1}
                     45: } {1 2}
                     46: 
                     47: # Get an immediate lock on the database using one connection.  The
                     48: # other connection should be able to read the database but not write
                     49: # it.
                     50: #
                     51: do_test lock3-3.1 {
                     52:   execsql {BEGIN IMMEDIATE TRANSACTION}
                     53:   catchsql {SELECT * FROM t1} db2
                     54: } {0 {1 2}}
                     55: do_test lock3-3.2 {
                     56:   catchsql {INSERT INTO t1 VALUES(3)} db2
                     57: } {1 {database is locked}}
                     58: do_test lock3-3.3 {
                     59:   execsql {END TRANSACTION}
                     60: } {}
                     61: 
                     62: 
                     63: # Get an exclusive lock on the database using one connection.  The
                     64: # other connection should be unable to read or write the database.
                     65: #
                     66: do_test lock3-4.1 {
                     67:   execsql {BEGIN EXCLUSIVE TRANSACTION}
                     68:   catchsql {SELECT * FROM t1} db2
                     69: } {1 {database is locked}}
                     70: do_test lock3-4.2 {
                     71:   catchsql {INSERT INTO t1 VALUES(3)} db2
                     72: } {1 {database is locked}}
                     73: do_test lock3-4.3 {
                     74:   execsql {END TRANSACTION}
                     75: } {}
                     76: 
                     77: catch {db2 close}
                     78: 
                     79: finish_test