# See the file LICENSE for redistribution information.
#
# Copyright (c) 2000
#	Sleepycat Software.  All rights reserved.
#
#	$Id: test075.tcl,v 11.9 2000/08/25 14:21:58 sue Exp $
#
# DB Test 75 (replacement)
# Test the DB->rename method.
proc test075 { method { tnum 75 } args } {
	global errorCode
	source ./include.tcl
	set omethod [convert_method $method]
	set args [convert_args $method $args]

	puts "Test0$tnum: $method ($args): Test of DB->rename()"

	# If we are using an env, then testfile should just be the db name.
	# Otherwise it is the test directory and the name.
	set eindex [lsearch -exact $args "-env"]
	if { $eindex == -1 } {
		set oldfile $testdir/test0$tnum-old.db
		set newfile $testdir/test0$tnum.db
		set env NULL
		set renargs ""
	} else {
		set oldfile test0$tnum-old.db
		set newfile test0$tnum.db
		# File existence checks won't work in an env, since $oldfile
		# and $newfile won't be in the current working directory.
		# We use this to skip them, and turn our secondary check
		# (opening the dbs and seeing that all is well) into the main
		# one.
		incr eindex
		set env [lindex $args $eindex]
		set renargs " -env $env"
	}

	# Make sure we're starting from a clean slate.
	cleanup $testdir $env
	if { $env == "NULL" } {
		error_check_bad "$oldfile exists" [file exists $oldfile] 1
		error_check_bad "$newfile exists" [file exists $newfile] 1
	}

	puts "\tTest0$tnum.a: Create/rename file"
	puts "\t\tTest0$tnum.a.1: create"
	set db [eval {berkdb_open -create -mode 0644} $omethod $args $oldfile]
	error_check_good dbopen [is_valid_db $db] TRUE

	if { $env == "NULL" } {
		error_check_bad "$oldfile exists" [file exists $oldfile] 0
		error_check_bad "$newfile exists" [file exists $newfile] 1
	}

	# The nature of the key and data are unimportant; use numeric key
	# so record-based methods don't need special treatment.
	set key 1
	set data [pad_data $method data]

	error_check_good dbput [$db put $key $data] 0
	error_check_good dbclose [$db close] 0

	puts "\t\tTest0$tnum.a.2: rename"
	if { $env == "NULL" } {
		error_check_bad "$oldfile exists" [file exists $oldfile] 0
		error_check_bad "$newfile exists" [file exists $newfile] 1
	}
	error_check_good rename_file [eval {berkdb dbrename}\
	    $renargs $oldfile $newfile] 0
	if { $env == "NULL" } {
		error_check_bad "$oldfile exists" [file exists $oldfile] 1
		error_check_bad "$newfile exists" [file exists $newfile] 0
	}

	puts "\t\tTest0$tnum.a.3: check"
	# Open again with create to make sure we're not caching or anything
	# silly.  In the normal case (no env), we already know the file doesn't
	# exist.
	set odb [eval {berkdb_open -create -mode 0644} $omethod $args $oldfile]
	set ndb [eval {berkdb_open -create -mode 0644} $omethod $args $newfile]
	error_check_good odb_open [is_valid_db $odb] TRUE
	error_check_good ndb_open [is_valid_db $ndb] TRUE

	set odbt [$odb get $key]
	set ndbt [$ndb get $key]

	# The DBT from the "old" database should be empty, not the "new" one.
	error_check_good odbt_empty [llength $odbt] 0
	error_check_bad ndbt_empty [llength $ndbt] 0

	error_check_good ndbt [lindex [lindex $ndbt 0] 1] $data

	error_check_good odb_close [$odb close] 0
	error_check_good ndb_close [$ndb close] 0

	if { $env != "NULL" } {
		puts "\tTest0$tnum: External environment present; \
		    skipping remainder"
		return
	}

	# Now there's both an old and a new.  Rename the "new" to the "old"
	# and make sure that fails.
	#
	# XXX Ideally we'd do this test even when there's an external
	# environment, but that env has errpfx/errfile set now.  :-(
	puts "\tTest0$tnum.b: Make sure rename fails instead of overwriting"
	set ret [catch {eval {berkdb dbrename} $renargs $newfile $oldfile} res]
	error_check_bad rename_overwrite $ret 0
	error_check_good rename_overwrite_ret [is_substr $errorCode EEXIST] 1

	# Verify and then start over from a clean slate.
	verify_dir $testdir "\tTest0$tnum.c: "
	cleanup $testdir $env
	error_check_bad "$oldfile exists" [file exists $oldfile] 1
	error_check_bad "$newfile exists" [file exists $newfile] 1

	set oldfile test0$tnum-old.db
	set newfile test0$tnum.db

	puts "\tTest0$tnum.d: Create/rename file in environment"

	set env [berkdb env -create -home $testdir]
	error_check_good env_open [is_valid_env $env] TRUE
	error_check_bad "$oldfile exists" [file exists $oldfile] 1
	error_check_bad "$newfile exists" [file exists $newfile] 1

	puts "\t\tTest0$tnum.d.1: create"
	set db [eval {berkdb_open -create -mode 0644} -env $env\
	    $omethod $args $oldfile]
	error_check_good dbopen [is_valid_db $db] TRUE

	# We need to make sure that it didn't create/rename into the
	# current directory.
	error_check_bad "$oldfile exists" [file exists $oldfile] 1
	error_check_bad "$newfile exists" [file exists $newfile] 1
	error_check_bad "$testdir/$oldfile exists"\
	    [file exists $testdir/$oldfile] 0
	error_check_bad "$testdir/$newfile exists"\
	    [file exists $testdir/$newfile] 1

	error_check_good dbput [$db put $key $data] 0
	error_check_good dbclose [$db close] 0

	puts "\t\tTest0$tnum.d.2: rename"

	error_check_good rename_file [berkdb dbrename -env $env\
	    $oldfile $newfile] 0
	error_check_bad "$oldfile exists" [file exists $oldfile] 1
	error_check_bad "$newfile exists" [file exists $newfile] 1
	error_check_bad "$testdir/$oldfile exists"\
	    [file exists $testdir/$oldfile] 1
	error_check_bad "$testdir/$newfile exists"\
	    [file exists $testdir/$newfile] 0

	puts "\t\tTest0$tnum.d.3: check"
	# Open again with create to make sure we're not caching or anything
	# silly.
	set odb [eval {berkdb_open -create -mode 0644} -env $env\
	    $omethod $args $oldfile]
	set ndb [eval {berkdb_open -create -mode 0644} -env $env\
	    $omethod $args $newfile]
	error_check_good odb_open [is_valid_db $odb] TRUE
	error_check_good ndb_open [is_valid_db $ndb] TRUE

	set odbt [$odb get $key]
	set ndbt [$ndb get $key]

	# The DBT from the "old" database should be empty, not the "new" one.
	error_check_good odbt_empty [llength $odbt] 0
	error_check_bad ndbt_empty [llength $ndbt] 0

	error_check_good ndbt [lindex [lindex $ndbt 0] 1] $data

	error_check_good odb_close [$odb close] 0
	error_check_good ndb_close [$ndb close] 0

	# XXX
	# We need to close and reopen the env since berkdb_open has
	# set its errfile/errpfx, and we can't unset that.
	error_check_good env_close [$env close] 0
	set env [berkdb env -home $testdir]
	error_check_good env_open2 [is_valid_env $env] TRUE

	puts "\tTest0$tnum.e:\
	    Make sure rename fails instead of overwriting in env"
	set ret [catch {eval {berkdb dbrename} -env $env $newfile $oldfile} res]
	error_check_bad rename_overwrite $ret 0
	error_check_good rename_overwrite_ret [is_substr $errorCode EEXIST] 1

	error_check_good env_close [$env close] 0

	puts "\tTest0$tnum succeeded."
}