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sqlite3

    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 1.1.1.1 2012/02/21 17:04:16 misho 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