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Annotation of embedaddon/sqlite3/test/trigger6.test, revision 1.1.1.1

1.1       misho       1: # 2004 December 07
                      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.
                     12: #
                     13: # This file implements tests to make sure expression of an INSERT
                     14: # and UPDATE statement are only evaluated once.  See ticket #980.
                     15: # If an expression uses a function that has side-effects or which
                     16: # is not deterministic (ex: random()) then we want to make sure
                     17: # that the same evaluation occurs for the actual INSERT/UPDATE and
                     18: # for the NEW.* fields of any triggers that fire.
                     19: #
                     20: # $Id: trigger6.test,v 1.2 2005/05/05 11:04:50 drh Exp $
                     21: 
                     22: set testdir [file dirname $argv0]
                     23: source $testdir/tester.tcl
                     24: ifcapable {!trigger} {
                     25:   finish_test
                     26:   return
                     27: }
                     28: 
                     29: do_test trigger6-1.1 {
                     30:   execsql {
                     31:     CREATE TABLE t1(x, y);
                     32:     CREATE TABLE log(a, b, c);
                     33:     CREATE TRIGGER r1 BEFORE INSERT ON t1 BEGIN
                     34:       INSERT INTO log VALUES(1, new.x, new.y);
                     35:     END;
                     36:     CREATE TRIGGER r2 BEFORE UPDATE ON t1 BEGIN
                     37:       INSERT INTO log VALUES(2, new.x, new.y);
                     38:     END;
                     39:   }
                     40:   set ::trigger6_cnt 0
                     41:   proc trigger6_counter {args} {
                     42:     incr ::trigger6_cnt
                     43:     return $::trigger6_cnt
                     44:   }
                     45:   db function counter trigger6_counter
                     46:   execsql {
                     47:     INSERT INTO t1 VALUES(1,counter());
                     48:     SELECT * FROM t1;
                     49:   }
                     50: } {1 1}
                     51: do_test trigger6-1.2 {
                     52:   execsql {
                     53:     SELECT * FROM log;
                     54:   }
                     55: } {1 1 1}
                     56: do_test trigger6-1.3 {
                     57:   execsql {
                     58:     DELETE FROM t1;
                     59:     DELETE FROM log;
                     60:     INSERT INTO t1 VALUES(2,counter(2,3)+4);
                     61:     SELECT * FROM t1;
                     62:   }
                     63: } {2 6}
                     64: do_test trigger6-1.4 {
                     65:   execsql {
                     66:     SELECT * FROM log;
                     67:   }
                     68: } {1 2 6}
                     69: do_test trigger6-1.5 {
                     70:   execsql {
                     71:     DELETE FROM log;
                     72:     UPDATE t1 SET y=counter(5);
                     73:     SELECT * FROM t1;
                     74:   }
                     75: } {2 3}
                     76: do_test trigger6-1.6 {
                     77:   execsql {
                     78:     SELECT * FROM log;
                     79:   }
                     80: } {2 2 3}
                     81: 
                     82: finish_test