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Annotation of embedaddon/sqlite3/test/vtab_alter.test, revision 1.1

1.1     ! misho       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