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# See the file LICENSE for redistribution information.
#
# Copyright (c) 1999, 2000
# Sleepycat Software. All rights reserved.
#
# $Id: test067.tcl,v 11.12 2000/08/25 14:21:58 sue Exp $
#
# DB Test 67: Test of DB_CURRENT partial puts on almost-empty duplicate pages.
# This test was written to address the following issue, #2 in the list of
# issues relating to bug #0820:
# 2. DBcursor->put, DB_CURRENT flag, off-page duplicates, hash and btree:
# In Btree, the DB_CURRENT overwrite of off-page duplicate records
# first deletes the record and then puts the new one -- this could
# be a problem if the removal of the record causes a reverse split.
# Suggested solution is to acquire a cursor to lock down the current
# record, put a new record after that record, and then delete using
# the held cursor.
# It also tests the following, #5 in the same list of issues:
# 5. DBcursor->put, DB_AFTER/DB_BEFORE/DB_CURRENT flags, DB_DBT_PARTIAL set,
# duplicate comparison routine specified.
# The partial change does not change how data items sort, but the
# record to be put isn't built yet, and that record supplied is the
# one that's checked for ordering compatibility.
proc test067 { method {ndups 1000} {tnum 67} args } {
source ./include.tcl
global alphabet
global errorCode
set args [convert_args $method $args]
set omethod [convert_method $method]
set eindex [lsearch -exact $args "-env"]
# If we are using an env, then testfile should just be the db name.
# Otherwise it is the test directory and the name.
if { $eindex == -1 } {
set testfile $testdir/test0$tnum.db
set env NULL
} else {
set testfile test0$tnum.db
incr eindex
set env [lindex $args $eindex]
}
puts "Test0$tnum:\
$method ($args) Partial puts on near-empty duplicate pages."
if { [is_record_based $method] == 1 || [is_rbtree $method] == 1 } {
puts "\tTest0$tnum: skipping for method $method."
return
}
foreach dupopt { "-dup" "-dup -dupsort" } {
cleanup $testdir $env
set db [eval {berkdb_open -create -truncate -mode 0644 \
$omethod} $args $dupopt {$testfile}]
error_check_good db_open [is_valid_db $db] TRUE
puts "\tTest0$tnum.a ($dupopt): Put $ndups duplicates."
set key "key_test$tnum"
for { set ndx 0 } { $ndx < $ndups } { incr ndx } {
set data $alphabet$ndx
# No need for pad_data since we're skipping recno.
set ret [eval {$db put} $key $data]
error_check_good put($key,$data) $ret 0
}
# Sync so we can inspect database if the next section bombs.
error_check_good db_sync [$db sync] 0
puts "\tTest0$tnum.b ($dupopt):\
Deleting dups (last first), overwriting each."
set dbc [$db cursor]
error_check_good cursor_create [is_valid_cursor $dbc $db] TRUE
set count 0
while { $count < $ndups - 1 } {
# set cursor to last item in db
set ret [$dbc get -last]
error_check_good \
verify_key [lindex [lindex $ret 0] 0] $key
# for error reporting
set currdatum [lindex [lindex $ret 0] 1]
# partial-overwrite it
# (overwrite offsets 1-4 with "bcde"--which they
# already are)
# Even though we expect success, we catch this
# since it might return EINVAL, and we want that
# to FAIL.
set errorCode NONE
set ret [catch {eval $dbc put -current \
{-partial [list 1 4]} "bcde"} \
res]
error_check_good \
partial_put_valid($currdatum) $errorCode NONE
error_check_good partial_put($currdatum) $res 0
# delete it
error_check_good dbc_del [$dbc del] 0
#puts $currdatum
incr count
}
error_check_good dbc_close [$dbc close] 0
error_check_good db_close [$db close] 0
}
}
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