#pragma ident "%Z%%M% %I% %E% SMI"
# 2001 November 22
#
# 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 script is btree database backend
#
# In particular, this file tests a small part of the Delete logic
# for the BTree backend. When a row is deleted from a table, the
# cursor is suppose to be left pointing at either the previous or
# next entry in that table. If the cursor is left pointing at the
# next entry, then the next Next operation is ignored. So the
# sequence of operations (Delete, Next) should always leave the
# cursor pointing at the first entry past the one that was deleted.
# This test is designed to verify that behavior.
#
# $Id: btree3.test,v 1.2 2002/12/04 13:40:27 drh Exp $
set testdir [file dirname $argv0]
source $testdir/tester.tcl
if {[info commands btree_open]!=""} {
# Open a test database.
#
file delete -force test1.bt
file delete -force test1.bt-journal
set b1 [btree_open test1.bt]
btree_begin_transaction $::b1
# Insert a few one records
#
set data {abcdefghijklmnopqrstuvwxyz0123456789}
append data $data
append data $data
append data $data
append data $data
for {set k 2} {$k<=10} {incr k} {
for {set j 1} {$j<=$k} {incr j} {
set jkey [format %02d $j]
btree_clear_table $::b1 2
set ::c1 [btree_cursor $::b1 2 1]
for {set i 1} {$i<=$k} {incr i} {
set key [format %02d $i]
do_test btree3-$k.$j.1.$i {
btree_insert $::c1 $::key $::data
} {}
# btree_tree_dump $::b1 2
}
do_test btree3-$k.$j.2 {
btree_move_to $::c1 $::jkey
btree_key $::c1
} $::jkey
do_test btree3-$k.$j.3 {
btree_delete $::c1
} {}
if {$j<$k} {
do_test btree3-$k.$j.4 {
btree_next $::c1
btree_key $::c1
} [format %02d [expr $j+1]]
}
if {$j>1} {
do_test btree3-$k.$j.5 {
btree_prev $::c1
btree_key $::c1
} [format %02d [expr $j-1]]
}
btree_close_cursor $::c1
}
}
btree_rollback $::b1
btree_pager_ref_dump $::b1
btree_close $::b1
} ;# end if( not mem: and has pager_open command );
finish_test