2 #pragma ident "%Z%%M% %I% %E% SMI"
6 # The author disclaims copyright to this source code. In place of
7 # a legal notice, here is a blessing:
9 # May you do good and not evil.
10 # May you find forgiveness for yourself and forgive others.
11 # May you share freely, never taking more than you give.
13 #***********************************************************************
14 # This file implements regression tests for SQLite library. The
15 # focus of this script is btree database backend
17 # In particular, this file tests a small part of the Delete logic
18 # for the BTree backend. When a row is deleted from a table, the
19 # cursor is suppose to be left pointing at either the previous or
20 # next entry in that table. If the cursor is left pointing at the
21 # next entry, then the next Next operation is ignored. So the
22 # sequence of operations (Delete, Next) should always leave the
23 # cursor pointing at the first entry past the one that was deleted.
24 # This test is designed to verify that behavior.
26 # $Id: btree3rb.test,v 1.1 2003/04/20 23:45:23 drh Exp $
29 set testdir [file dirname $argv0]
30 source $testdir/tester.tcl
32 if {[info commands btree_open]!=""} {
34 # Open a test database.
36 set b1 [btree_open :memory:]
37 btree_begin_transaction $::b1
39 # Insert a few one records
41 set data {abcdefghijklmnopqrstuvwxyz0123456789}
46 for {set k 2} {$k<=20} {incr k} {
47 for {set j 1} {$j<=$k} {incr j} {
48 set jkey [format %02d $j]
49 btree_clear_table $::b1 2
50 set ::c1 [btree_cursor $::b1 2 1]
51 for {set i 1} {$i<=$k} {incr i} {
52 set key [format %02d $i]
53 do_test btree3rb-$k.$j.1.$i {
54 btree_insert $::c1 $::key $::data
56 # btree_tree_dump $::b1 2
58 do_test btree3rb-$k.$j.2 {
59 btree_move_to $::c1 $::jkey
62 do_test btree3rb-$k.$j.3 {
66 do_test btree3rb-$k.$j.4 {
69 } [format %02d [expr $j+1]]
72 do_test btree3rb-$k.$j.5 {
75 } [format %02d [expr $j-1]]
77 btree_close_cursor $::c1
82 #btree_pager_ref_dump $::b1
85 } ;# end if( not mem: and has pager_open command );