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1 # 2007 June 26 | |
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 file is testing the ALTER TABLE ... RENAME TO | |
13 # command on virtual tables. | |
14 # | |
15 # $Id: vtab_alter.test,v 1.3 2007/12/13 21:54:11 drh Exp $ | |
16 | |
17 set testdir [file dirname $argv0] | |
18 source $testdir/tester.tcl | |
19 | |
20 ifcapable !vtab||!altertable { | |
21 finish_test | |
22 return | |
23 } | |
24 | |
25 # Register the echo module. | |
26 # | |
27 # This test uses a special feature of the echo module. If the name | |
28 # of the virtual table is a prefix of the name of the underlying | |
29 # real table (for example if the v-table is "tbl" and the real table | |
30 # is "tbl_base"), then the name of the real table is modified | |
31 # when an "ALTER TABLE ... RENAME TO" is executed on the v-table. | |
32 # For example: | |
33 # | |
34 # sqlite> CREATE TABLE t1_base(a, b, c); | |
35 # sqlite> CREATE VIRTUAL TABLE t1 USING(t1_base); | |
36 # sqlite> ALTER TABLE t1 RENAME TO t2; | |
37 # sqlite> SELECT tbl_name FROM sqlite_master; | |
38 # t2_base | |
39 # t2 | |
40 # | |
41 register_echo_module [sqlite3_connection_pointer db] | |
42 | |
43 | |
44 # Try to rename an echo table. Make sure nothing terrible happens. | |
45 # | |
46 do_test vtab_alter-1.1 { | |
47 execsql { CREATE TABLE t1(a, b VARCHAR, c INTEGER) } | |
48 } {} | |
49 do_test vtab_alter-1.2 { | |
50 execsql { CREATE VIRTUAL TABLE t1echo USING echo(t1) } | |
51 } {} | |
52 do_test vtab_alter-1.3 { | |
53 catchsql { SELECT * FROM t1echo } | |
54 } {0 {}} | |
55 do_test vtab_alter-1.4 { | |
56 execsql { ALTER TABLE t1echo RENAME TO new } | |
57 } {} | |
58 do_test vtab_alter-1.5 { | |
59 catchsql { SELECT * FROM t1echo } | |
60 } {1 {no such table: t1echo}} | |
61 do_test vtab_alter-1.6 { | |
62 catchsql { SELECT * FROM new } | |
63 } {0 {}} | |
64 | |
65 # Try to rename an echo table that renames its base table. Make | |
66 # sure nothing terrible happens. | |
67 # | |
68 do_test vtab_alter-2.1 { | |
69 execsql { | |
70 DROP TABLE new; | |
71 DROP TABLE t1; | |
72 CREATE TABLE t1_base(a, b, c); | |
73 CREATE VIRTUAL TABLE t1 USING echo('*_base'); | |
74 } | |
75 } {} | |
76 do_test vtab_alter-2.2 { | |
77 execsql { | |
78 INSERT INTO t1_base VALUES(1, 2, 3); | |
79 SELECT * FROM t1; | |
80 } | |
81 } {1 2 3} | |
82 do_test vtab_alter-2.3 { | |
83 execsql { ALTER TABLE t1 RENAME TO x } | |
84 } {} | |
85 do_test vtab_alter-2.4 { | |
86 execsql { SELECT * FROM x; } | |
87 } {1 2 3} | |
88 do_test vtab_alter-2.5 { | |
89 execsql { SELECT * FROM x_base; } | |
90 } {1 2 3} | |
91 | |
92 # Cause an error to occur when the echo module renames its | |
93 # backing store table. | |
94 # | |
95 do_test vtab_alter-3.1 { | |
96 execsql { CREATE TABLE y_base(a, b, c) } | |
97 catchsql { ALTER TABLE x RENAME TO y } | |
98 } {1 {SQL logic error or missing database}} | |
99 do_test vtab_alter-3.2 { | |
100 execsql { SELECT * FROM x } | |
101 } {1 2 3} | |
102 | |
103 finish_test | |
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