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# 2001 September 15
#
# 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 file is testing the SELECT statement.
#
# $Id: autovacuum.test,v 1.3 2004/11/03 03:01:17 danielk1977 Exp $
# $Id: autovacuum.test,v 1.4 2004/11/03 09:30:55 danielk1977 Exp $
set testdir [file dirname $argv0]
source $testdir/tester.tcl
# Return a string $len characters long. The returned string is $char repeated
# over and over. For example, [make_str abc 8] returns "abcabcab".
proc make_str {char len} {
set str [string repeat $char. $len]
return [string range $str 0 [expr $len-1]]
}
# Return the number of pages in the file test.db by looking at the file system.
proc file_pages {} {
return [expr [file size test.db] / 1024]
}
# Test cases autovacuum-1.* work as follows:
#
# 1. A table with a single indexed field is created.
# 2. Approximately 20 rows are inserted into the table. Each row is long
# enough such that it uses at least 2 overflow pages for both the table
# and index entry.
# 3. The rows are deleted in a psuedo-random order. Sometimes only one row
# is deleted per transaction, sometimes more than one.
# 4. After each transaction the table data is checked to ensure it is correct
# and a "PRAGMA integrity_check" is executed.
# 5. Once all the rows are deleted the file is checked to make sure it
# consists of exactly 4 pages.
#
# Steps 2-5 are repeated for a few different psuedo-random delete patterns
# (defined by the $delete_orders list).
set delete_orders [list]
lappend delete_orders {1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20}
lappend delete_orders {20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1}
lappend delete_orders {8 18 2 4 14 11 13 3 10 7 9 5 12 17 19 15 20 6 16 1}
lappend delete_orders {10 3 11 17 19 20 7 4 13 6 1 14 16 12 9 18 8 15 5 2}
lappend delete_orders {{1 2 3 4 5 6 7 8 9 10} {11 12 13 14 15 16 17 18 19 20}}
lappend delete_orders {{19 8 17 15} {16 11 9 14} {18 5 3 1} {13 20 7 2} {6 12}}
# The length of each table entry.
set ENTRY_LEN 3500
do_test autovacuum-1.1 {
execsql {
CREATE TABLE av1(a);
CREATE INDEX av1_idx ON av1(a);
}
} {}
set ENTRY_LEN 3000
set delete_orders [list]
lappend delete_orders {1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20}
lappend delete_orders {20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1}
lappend delete_orders {8 18 2 4 14 11 13 3 10 7 9 5 12 17 19 15 20 6 16 1}
lappend delete_orders {10 3 11 17 19 20 7 4 13 6 1 14 16 12 9 18 8 15 5 2}
lappend delete_orders {{1 2 3 4 5 6 7 8 9 10} {11 12 13 14 15 16 17 18 19 20}}
lappend delete_orders \
{{19 8 17 15} {16 11 9 14} {18 5 3 1} {13 20 7 2} {6 12 4 10}}
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