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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 | |
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