# 2007 June 26 # # The author disclaims copyright to this source code. In place of # a legal notice, here is a blessing: # # May you do good and not evil. # May you find forgiveness for yourself and forgive others. # May you share freely, never taking more than you give. # #*********************************************************************** # This file implements regression tests for SQLite library. The # focus of this file is testing the ALTER TABLE ... RENAME TO # command on virtual tables. # # $Id: vtab_alter.test,v 1.3 2007/12/13 21:54:11 drh Exp $ set testdir [file dirname $argv0] source $testdir/tester.tcl ifcapable !vtab||!altertable { finish_test return } # Register the echo module. # # This test uses a special feature of the echo module. If the name # of the virtual table is a prefix of the name of the underlying # real table (for example if the v-table is "tbl" and the real table # is "tbl_base"), then the name of the real table is modified # when an "ALTER TABLE ... RENAME TO" is executed on the v-table. # For example: # # sqlite> CREATE TABLE t1_base(a, b, c); # sqlite> CREATE VIRTUAL TABLE t1 USING(t1_base); # sqlite> ALTER TABLE t1 RENAME TO t2; # sqlite> SELECT tbl_name FROM sqlite_master; # t2_base # t2 # register_echo_module [sqlite3_connection_pointer db] # Try to rename an echo table. Make sure nothing terrible happens. # do_test vtab_alter-1.1 { execsql { CREATE TABLE t1(a, b VARCHAR, c INTEGER) } } {} do_test vtab_alter-1.2 { execsql { CREATE VIRTUAL TABLE t1echo USING echo(t1) } } {} do_test vtab_alter-1.3 { catchsql { SELECT * FROM t1echo } } {0 {}} do_test vtab_alter-1.4 { execsql { ALTER TABLE t1echo RENAME TO new } } {} do_test vtab_alter-1.5 { catchsql { SELECT * FROM t1echo } } {1 {no such table: t1echo}} do_test vtab_alter-1.6 { catchsql { SELECT * FROM new } } {0 {}} # Try to rename an echo table that renames its base table. Make # sure nothing terrible happens. # do_test vtab_alter-2.1 { execsql { DROP TABLE new; DROP TABLE t1; CREATE TABLE t1_base(a, b, c); CREATE VIRTUAL TABLE t1 USING echo('*_base'); } } {} do_test vtab_alter-2.2 { execsql { INSERT INTO t1_base VALUES(1, 2, 3); SELECT * FROM t1; } } {1 2 3} do_test vtab_alter-2.3 { execsql { ALTER TABLE t1 RENAME TO x } } {} do_test vtab_alter-2.4 { execsql { SELECT * FROM x; } } {1 2 3} do_test vtab_alter-2.5 { execsql { SELECT * FROM x_base; } } {1 2 3} # Cause an error to occur when the echo module renames its # backing store table. # do_test vtab_alter-3.1 { execsql { CREATE TABLE y_base(a, b, c) } catchsql { ALTER TABLE x RENAME TO y } } {1 {SQL logic error}} do_test vtab_alter-3.2 { execsql { SELECT * FROM x } } {1 2 3} finish_test