# Commands covered:  rename
#
# This file contains a collection of tests for one or more of the Tcl
# built-in commands.  Sourcing this file into Tcl runs the tests and
# generates output for errors.  No output means no errors were found.
#
# Copyright (c) 1991-1993 The Regents of the University of California.
# All rights reserved.
#
# Permission is hereby granted, without written agreement and without
# license or royalty fees, to use, copy, modify, and distribute this
# software and its documentation for any purpose, provided that the
# above copyright notice and the following two paragraphs appear in
# all copies of this software.
#
# IN NO EVENT SHALL THE UNIVERSITY OF CALIFORNIA BE LIABLE TO ANY PARTY FOR
# DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES ARISING OUT
# OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN IF THE UNIVERSITY OF
# CALIFORNIA HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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# INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
# AND FITNESS FOR A PARTICULAR PURPOSE.  THE SOFTWARE PROVIDED HEREUNDER IS
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# $Header: /user6/ouster/tcl/tests/RCS/rename.test,v 1.5 93/02/06 15:54:23 ouster Exp $ (Berkeley)

if {[string compare test [info procs test]] == 1} then {source defs}

catch {rename r2 {}}
proc r1 {} {return "procedure r1"}
rename r1 r2
test rename-1.1 {simple renaming} {
    r2
} {procedure r1}
test rename-1.2 {simple renaming} {
    list [catch r1 msg] $msg
} {1 {invalid command name: "r1"}}
rename r2 {}
test rename-1.3 {simple renaming} {
    list [catch r2 msg] $msg
} {1 {invalid command name: "r2"}}

# The test below is tricky because it renames a built-in command.
# It's possible that the test procedure uses this command, so must
# restore the command before calling test again.

rename list l.new
set a [catch list msg1]
set b [l.new a b c]
rename l.new list
set c [catch l.new msg2]
set d [list 111 222]
test 2.1 {renaming built-in command} {
    list $a $msg1 $b $c $msg2 $d
} {1 {invalid command name: "list"} {a b c} 1 {invalid command name: "l.new"} {111 222}}

test rename-3.1 {error conditions} {
    list [catch {rename r1} msg] $msg $errorCode
} {1 {wrong # args: should be "rename oldName newName"} NONE}
test rename-3.2 {error conditions} {
    list [catch {rename r1 r2 r3} msg] $msg $errorCode
} {1 {wrong # args: should be "rename oldName newName"} NONE}
test rename-3.3 {error conditions} {
    proc r1 {} {}
    proc r2 {} {}
    list [catch {rename r1 r2} msg] $msg
} {1 {can't rename to "r2": command already exists}}
test rename-3.4 {error conditions} {
    catch {rename r1 {}}
    catch {rename r2 {}}
    list [catch {rename r1 r2} msg] $msg
} {1 {can't rename "r1":  command doesn't exist}}
test rename-3.5 {error conditions} {
    catch {rename _non_existent_command {}}
    list [catch {rename _non_existent_command {}} msg] $msg
} {1 {can't delete "_non_existent_command": command doesn't exist}}