Annotation of embedaddon/sqlite3/test/temptrigger.test, revision 1.1.1.1
1.1 misho 1: # 2009 February 27
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: #
12: # $Id: temptrigger.test,v 1.3 2009/04/15 13:07:19 drh Exp $
13:
14: set testdir [file dirname $argv0]
15: source $testdir/tester.tcl
16:
17: ifcapable {!trigger || !shared_cache} { finish_test ; return }
18:
19: # Test cases:
20: #
21: # temptrigger-1.*: Shared cache problem.
22: # temptrigger-2.*: A similar shared cache problem.
23: # temptrigger-3.*: Attached database problem.
24: #
25:
26: #-------------------------------------------------------------------------
27: # Test case temptrigger-1.* demonstrates a problem with temp triggers
28: # in shared-cache mode. If process 1 connections to a shared-cache and
29: # creates a temp trigger, the temp trigger is linked into the shared-cache
30: # schema. If process 2 reloads the shared-cache schema from disk, then
31: # it does not recreate the temp trigger belonging to process 1. From the
32: # point of view of process 1, the temp trigger just disappeared.
33: #
34: # temptrigger-1.1: In shared cache mode, create a table in the main
35: # database and add a temp trigger to it.
36: #
37: # temptrigger-1.2: Check that the temp trigger is correctly fired. Check
38: # that the temp trigger is not fired by statements
39: # executed by a second connection connected to the
40: # same shared cache.
41: #
42: # temptrigger-1.3: Using the second connection to the shared-cache, cause
43: # the shared-cache schema to be reloaded.
44: #
45: # temptrigger-1.4: Check that the temp trigger is still fired correctly.
46: #
47: # temptrigger-1.5: Check that the temp trigger can be dropped without error.
48: #
49: db close
50: set ::enable_shared_cache [sqlite3_enable_shared_cache]
51: sqlite3_enable_shared_cache 1
52:
53: sqlite3 db test.db
54: sqlite3 db2 test.db
55:
56: do_test temptrigger-1.1 {
57: execsql {
58: CREATE TABLE t1(a, b);
59: CREATE TEMP TABLE tt1(a, b);
60: CREATE TEMP TRIGGER tr1 AFTER INSERT ON t1 BEGIN
61: INSERT INTO tt1 VALUES(new.a, new.b);
62: END;
63: }
64: } {}
65:
66: do_test temptrigger-1.2.1 {
67: execsql { INSERT INTO t1 VALUES(1, 2) }
68: execsql { SELECT * FROM t1 }
69: } {1 2}
70: do_test temptrigger-1.2.2 {
71: execsql { SELECT * FROM tt1 }
72: } {1 2}
73: do_test temptrigger-1.2.3 {
74: execsql { INSERT INTO t1 VALUES(3, 4) } db2
75: execsql { SELECT * FROM t1 }
76: } {1 2 3 4}
77: do_test temptrigger-1.2.4 {
78: execsql { SELECT * FROM tt1 }
79: } {1 2}
80:
81: # Cause the shared-cache schema to be reloaded.
82: #
83: do_test temptrigger-1.3 {
84: execsql { BEGIN; CREATE TABLE t3(a, b); ROLLBACK; } db2
85: } {}
86:
87: do_test temptrigger-1.4 {
88: execsql { INSERT INTO t1 VALUES(5, 6) }
89: execsql { SELECT * FROM tt1 }
90: } {1 2 5 6}
91:
92: do_test temptrigger-1.5 {
93: # Before the bug was fixed, the following 'DROP TRIGGER' hit an
94: # assert if executed.
95: #execsql { DROP TRIGGER tr1 }
96: } {}
97:
98: catch {db close}
99: catch {db2 close}
100:
101: #-------------------------------------------------------------------------
102: # Tests temptrigger-2.* are similar to temptrigger-1.*, except that
103: # temptrigger-2.3 simply opens and closes a connection to the shared-cache.
104: # It does not do anything special to cause the schema to be reloaded.
105: #
106: do_test temptrigger-2.1 {
107: sqlite3 db test.db
108: execsql {
109: DELETE FROM t1;
110: CREATE TEMP TABLE tt1(a, b);
111: CREATE TEMP TRIGGER tr1 AFTER INSERT ON t1 BEGIN
112: INSERT INTO tt1 VALUES(new.a, new.b);
113: END;
114: }
115: } {}
116: do_test temptrigger-2.2 {
117: execsql {
118: INSERT INTO t1 VALUES(10, 20);
119: SELECT * FROM tt1;
120: }
121: } {10 20}
122: do_test temptrigger-2.3 {
123: sqlite3 db2 test.db
124: db2 close
125: } {}
126: do_test temptrigger-2.4 {
127: execsql {
128: INSERT INTO t1 VALUES(30, 40);
129: SELECT * FROM tt1;
130: }
131: } {10 20 30 40}
132: do_test temptrigger-2.5 {
133: #execsql { DROP TRIGGER tr1 }
134: } {}
135:
136: catch {db close}
137: catch {db2 close}
138: sqlite3_enable_shared_cache $::enable_shared_cache
139:
140: #-------------------------------------------------------------------------
141: # Test case temptrigger-3.* demonstrates a problem with temp triggers
142: # on tables located in attached databases. At one point when SQLite reloaded
143: # the schema of an attached database (because some other connection had
144: # changed the schema cookie) it was not re-creating temp triggers attached
145: # to tables located within the attached database.
146: #
147: # temptrigger-3.1: Attach database 'test2.db' to connection [db]. Add a
148: # temp trigger to a table in 'test2.db'.
149: #
150: # temptrigger-3.2: Check that the temp trigger is correctly fired.
151: #
152: # temptrigger-3.3: Update the schema of 'test2.db' using an external
153: # connection. This forces [db] to reload the 'test2.db'
154: # schema. Check that the temp trigger is still fired
155: # correctly.
156: #
157: # temptrigger-3.4: Check that the temp trigger can be dropped without error.
158: #
159: do_test temptrigger-3.1 {
160: catch { forcedelete test2.db test2.db-journal }
161: catch { forcedelete test.db test.db-journal }
162: sqlite3 db test.db
163: sqlite3 db2 test2.db
164: execsql { CREATE TABLE t2(a, b) } db2
165: execsql {
166: ATTACH 'test2.db' AS aux;
167: CREATE TEMP TABLE tt2(a, b);
168: CREATE TEMP TRIGGER tr2 AFTER INSERT ON aux.t2 BEGIN
169: INSERT INTO tt2 VALUES(new.a, new.b);
170: END;
171: }
172: } {}
173:
174: do_test temptrigger-3.2.1 {
175: execsql {
176: INSERT INTO aux.t2 VALUES(1, 2);
177: SELECT * FROM aux.t2;
178: }
179: } {1 2}
180: do_test temptrigger-3.2.2 {
181: execsql { SELECT * FROM tt2 }
182: } {1 2}
183:
184: do_test temptrigger-3.3.1 {
185: execsql { CREATE TABLE t3(a, b) } db2
186: execsql {
187: INSERT INTO aux.t2 VALUES(3, 4);
188: SELECT * FROM aux.t2;
189: }
190: } {1 2 3 4}
191: do_test temptrigger-3.3.2 {
192: execsql { SELECT * FROM tt2 }
193: } {1 2 3 4}
194:
195: do_test temptrigger-3.4 {
196: # Before the bug was fixed, the following 'DROP TRIGGER' hit an
197: # assert if executed.
198: #execsql { DROP TRIGGER tr2 }
199: } {}
200:
201: catch { db close }
202: catch { db2 close }
203:
204: finish_test
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