test/btree7.test

# 2004 Jun 4	
#
# 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.
#
# $Id: btree7.test,v 1.2 2004/11/04 14:47:13 drh Exp $


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

# Stress the balance routine by trying to create situations where
# 3 neighboring nodes split into 5.
#
set bigdata _123456789    ;#  10
append bigdata $bigdata   ;#  20
append bigdata $bigdata   ;#  40
append bigdata $bigdata   ;#  80
append bigdata $bigdata   ;# 160
append bigdata $bigdata   ;# 320
append bigdata $bigdata   ;# 640
set data450 [string range $bigdata 0 449]
do_test btree7-1.1 {
  execsql "
    CREATE TABLE t1(x INTEGER PRIMARY KEY, y TEXT);
    INSERT INTO t1 VALUES(1, '$bigdata');
    INSERT INTO t1 VALUES(2, '$bigdata');
    INSERT INTO t1 VALUES(3, '$data450');
    INSERT INTO t1 VALUES(5, '$data450');
    INSERT INTO t1 VALUES(8, '$bigdata');
    INSERT INTO t1 VALUES(9, '$bigdata');
  "
} {}
integrity_check btree7-1.2
do_test btree7-1.3 {
  execsql "
    INSERT INTO t1 VALUES(4, '$bigdata');
  "
} {}
integrity_check btree7-1.4

finish_test