test/update.test

# Copyright (c) 1999, 2000 D. Richard Hipp
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public
# License as published by the Free Software Foundation; either
# version 2 of the License, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
# General Public License for more details.
# 
# You should have received a copy of the GNU General Public
# License along with this library; if not, write to the
# Free Software Foundation, Inc., 59 Temple Place - Suite 330,
# Boston, MA  02111-1307, USA.
#
# Author contact information:
#   drh@hwaci.com
#   http://www.hwaci.com/drh/
#
#***********************************************************************
# This file implements regression tests for SQLite library.  The
# focus of this file is testing the UPDATE statement.
#
# $Id: update.test,v 1.1 2000/05/30 03:12:22 drh Exp $

set testdir [file dirname $argv0]
source $testdir/tester.tcl

# Try to update an non-existent table
#
do_test update-1.1 {
  set v [catch {execsql {UPDATE test1 SET f2=5 WHERE f1<1}} msg]
  lappend v $msg
} {1 {no such table: test1}}

# Try to update a read-only table
#
do_test update-2.1 {
  set v [catch \
       {execsql {UPDATE sqlite_master SET name='xyz' WHERE name='123'}} msg]
  lappend v $msg
} {1 {table sqlite_master may not be modified}}

# Create a table to work with
#
do_test update-3.1 {
  execsql {CREATE TABLE test1(f1 int,f2 int)}
  for {set i 1} {$i<=10} {incr i} {
    set sql "INSERT INTO test1 VALUES($i,[expr {int(pow(2,$i))}])"
    execsql $sql
  }
  execsql {SELECT * FROM test1 ORDER BY f1}
} {1 2 2 4 3 8 4 16 5 32 6 64 7 128 8 256 9 512 10 1024}

# Unknown field name in an expression
#
do_test update-3.2 {
  set v [catch {execsql {UPDATE test1 SET f1=f3*2 WHERE f2==32}} msg]
  lappend v $msg
} {1 {no such field: f3}}
do_test update-3.3 {
  set v [catch {execsql {UPDATE test1 SET f1=test2.f1*2 WHERE f2==32}} msg]
  lappend v $msg
} {1 {no such field: test2.f1}}
do_test update-3.4 {
  set v [catch {execsql {UPDATE test1 SET f3=f1*2 WHERE f2==32}} msg]
  lappend v $msg
} {1 {no such field: f3}}

# Actually do some updates
#
do_test update-3.5 {
  execsql {UPDATE test1 SET f2=f2*3}
  execsql {SELECT * FROM test1 ORDER BY f1}
} {1 6 2 12 3 24 4 48 5 96 6 192 7 384 8 768 9 1536 10 3072}
do_test update-3.6 {
  execsql {UPDATE test1 SET f2=f2/3 WHERE f1<=5}
  execsql {SELECT * FROM test1 ORDER BY f1}
} {1 2 2 4 3 8 4 16 5 32 6 192 7 384 8 768 9 1536 10 3072}
do_test update-3.7 {
  execsql {UPDATE test1 SET f2=f2/3 WHERE f1>5}
  execsql {SELECT * FROM test1 ORDER BY f1}
} {1 2 2 4 3 8 4 16 5 32 6 64 7 128 8 256 9 512 10 1024}

# Swap the values of f1 and f2 for all elements
#
do_test update-3.8 {
  execsql {UPDATE test1 SET f2=f1, f1=f2}
  execsql {SELECT * FROM test1 ORDER BY f1}
} {2 1 4 2 8 3 16 4 32 5 64 6 128 7 256 8 512 9 1024 10}

# Create an index and make sure updating works with an index.
#
do_test update-3.9 {
  execsql {CREATE INDEX index1 ON test1(f1)}
  execsql {CREATE INDEX index2 ON test1(f1)}
  execsql {UPDATE test1 SET f1=1025 WHERE f2==10}
  execsql {SELECT * FROM test1 ORDER BY f1}
} {2 1 4 2 8 3 16 4 32 5 64 6 128 7 256 8 512 9 1025 10}
do_test update-3.10 {
  execsql {SELECT * FROM test1 WHERE f1=1025}
} {1025 10}
do_test update-3.11 {
  execsql {UPDATE test1 SET f2=11 WHERE f1==1025}
  execsql {SELECT * FROM test1 ORDER BY f1}
} {2 1 4 2 8 3 16 4 32 5 64 6 128 7 256 8 512 9 1025 11}
do_test update-3.12 {
  execsql {SELECT * FROM test1 WHERE f1=1025}
} {1025 11}







finish_test