304 lines
7.5 KiB
Plaintext
304 lines
7.5 KiB
Plaintext
# Commands covered: upvar
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#
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# This file contains a collection of tests for one or more of the Tcl
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# built-in commands. Sourcing this file into Tcl runs the tests and
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# generates output for errors. No output means no errors were found.
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#
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# Copyright (c) 1991-1993 The Regents of the University of California.
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# All rights reserved.
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#
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# Permission is hereby granted, without written agreement and without
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# license or royalty fees, to use, copy, modify, and distribute this
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# software and its documentation for any purpose, provided that the
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# above copyright notice and the following two paragraphs appear in
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# all copies of this software.
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#
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# IN NO EVENT SHALL THE UNIVERSITY OF CALIFORNIA BE LIABLE TO ANY PARTY FOR
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# DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES ARISING OUT
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# OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN IF THE UNIVERSITY OF
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# CALIFORNIA HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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#
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# THE UNIVERSITY OF CALIFORNIA SPECIFICALLY DISCLAIMS ANY WARRANTIES,
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# INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
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# AND FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS
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# ON AN "AS IS" BASIS, AND THE UNIVERSITY OF CALIFORNIA HAS NO OBLIGATION TO
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# PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
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#
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# $Header: /user6/ouster/tcl/tests/RCS/upvar.test,v 1.4 93/07/17 14:38:10 ouster Exp $ (Berkeley)
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if {[string compare test [info procs test]] == 1} then {source defs}
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test upvar-1.1 {reading variables with upvar} {
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proc p1 {a b} {set c 22; set d 33; p2}
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proc p2 {} {upvar a x1 b x2 c x3 d x4; set a abc; list $x1 $x2 $x3 $x4 $a}
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p1 foo bar
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} {foo bar 22 33 abc}
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test upvar-1.2 {reading variables with upvar} {
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proc p1 {a b} {set c 22; set d 33; p2}
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proc p2 {} {p3}
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proc p3 {} {upvar 2 a x1 b x2 c x3 d x4; set a abc; list $x1 $x2 $x3 $x4 $a}
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p1 foo bar
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} {foo bar 22 33 abc}
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test upvar-1.3 {reading variables with upvar} {
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proc p1 {a b} {set c 22; set d 33; p2}
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proc p2 {} {p3}
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proc p3 {} {
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upvar #1 a x1 b x2 c x3 d x4
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set a abc
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list $x1 $x2 $x3 $x4 $a
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}
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p1 foo bar
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} {foo bar 22 33 abc}
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test upvar-1.4 {reading variables with upvar} {
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set x1 44
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set x2 55
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proc p1 {} {p2}
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proc p2 {} {
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upvar 2 x1 x1 x2 a
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upvar #0 x1 b
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set c $b
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incr b 3
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list $x1 $a $b
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}
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p1
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} {47 55 47}
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test upvar-1.4 {reading array elements with upvar} {
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proc p1 {} {set a(0) zeroth; set a(1) first; p2}
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proc p2 {} {upvar a(0) x; set x}
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p1
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} {zeroth}
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test upvar-2.1 {writing variables with upvar} {
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proc p1 {a b} {set c 22; set d 33; p2; list $a $b $c $d}
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proc p2 {} {
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upvar a x1 b x2 c x3 d x4
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set x1 14
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set x4 88
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}
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p1 foo bar
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} {14 bar 22 88}
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test upvar-2.2 {writing variables with upvar} {
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set x1 44
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set x2 55
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proc p1 {x1 x2} {
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upvar #0 x1 a
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upvar x2 b
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set a $x1
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set b $x2
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}
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p1 newbits morebits
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list $x1 $x2
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} {newbits morebits}
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test upvar-2.3 {writing variables with upvar} {
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catch {unset x1}
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catch {unset x2}
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proc p1 {x1 x2} {
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upvar #0 x1 a
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upvar x2 b
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set a $x1
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set b $x2
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}
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p1 newbits morebits
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list [catch {set x1} msg] $msg [catch {set x2} msg] $msg
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} {0 newbits 0 morebits}
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test upvar-2.4 {writing array elements with upvar} {
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proc p1 {} {set a(0) zeroth; set a(1) first; list [p2] $a(0)}
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proc p2 {} {upvar a(0) x; set x xyzzy}
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p1
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} {xyzzy xyzzy}
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test upvar-3.1 {unsetting variables with upvar} {
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proc p1 {a b} {set c 22; set d 33; p2; lsort [info vars]}
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proc p2 {} {
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upvar 1 a x1 d x2
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unset x1 x2
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}
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p1 foo bar
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} {b c}
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test upvar-3.2 {unsetting variables with upvar} {
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proc p1 {a b} {set c 22; set d 33; p2; lsort [info vars]}
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proc p2 {} {
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upvar 1 a x1 d x2
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unset x1 x2
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set x2 28
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}
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p1 foo bar
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} {b c d}
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test upvar-3.3 {unsetting variables with upvar} {
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set x1 44
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set x2 55
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proc p1 {} {p2}
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proc p2 {} {
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upvar 2 x1 a
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upvar #0 x2 b
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unset a b
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}
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p1
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list [info exists x1] [info exists x2]
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} {0 0}
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test upvar-3.4 {unsetting variables with upvar} {
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set x1 44
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set x2 55
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proc p1 {} {
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upvar x1 a x2 b
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unset a b
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set b 118
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}
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p1
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list [info exists x1] [catch {set x2} msg] $msg
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} {0 0 118}
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test upvar-3.5 {unsetting array elements with upvar} {
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proc p1 {} {
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set a(0) zeroth
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set a(1) first
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set a(2) second
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p2
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array names a
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}
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proc p2 {} {upvar a(0) x; unset x}
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p1
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} {1 2}
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test upvar-3.6 {unsetting then resetting array elements with upvar} {
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proc p1 {} {
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set a(0) zeroth
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set a(1) first
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set a(2) second
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p2
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list [array names a] [catch {set a(0)} msg] $msg
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}
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proc p2 {} {upvar a(0) x; unset x; set x 12345}
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p1
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} {{0 1 2} 0 12345}
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test upvar-4.1 {nested upvars} {
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set x1 88
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proc p1 {a b} {set c 22; set d 33; p2}
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proc p2 {} {global x1; upvar c x2; p3}
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proc p3 {} {
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upvar x1 a x2 b
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list $a $b
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}
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p1 14 15
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} {88 22}
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test upvar-4.2 {nested upvars} {
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set x1 88
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proc p1 {a b} {set c 22; set d 33; p2; list $a $b $c $d}
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proc p2 {} {global x1; upvar c x2; p3}
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proc p3 {} {
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upvar x1 a x2 b
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set a foo
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set b bar
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}
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list [p1 14 15] $x1
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} {{14 15 bar 33} foo}
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proc tproc {args} {global x; set x [list $args [uplevel info vars]]}
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test upvar-5.1 {traces involving upvars} {
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proc p1 {a b} {set c 22; set d 33; trace var c rw tproc; p2}
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proc p2 {} {upvar c x1; set x1 22}
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set x ---
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p1 foo bar
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set x
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} {{x1 {} w} x1}
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test upvar-5.2 {traces involving upvars} {
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proc p1 {a b} {set c 22; set d 33; trace var c rw tproc; p2}
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proc p2 {} {upvar c x1; set x1}
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set x ---
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p1 foo bar
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set x
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} {{x1 {} r} x1}
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test upvar-5.3 {traces involving upvars} {
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proc p1 {a b} {set c 22; set d 33; trace var c rwu tproc; p2}
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proc p2 {} {upvar c x1; unset x1}
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set x ---
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p1 foo bar
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set x
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} {{x1 {} u} x1}
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test upvar-6.1 {retargeting an upvar} {
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proc p1 {} {
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set a(0) zeroth
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set a(1) first
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set a(2) second
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p2
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}
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proc p2 {} {
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upvar a x
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set result {}
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foreach i [array names x] {
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upvar a($i) x
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lappend result $x
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}
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lsort $result
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}
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p1
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} {first second zeroth}
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test upvar-6.2 {retargeting an upvar} {
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set x 44
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set y abcde
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proc p1 {} {
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global x
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set result $x
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upvar y x
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lappend result $x
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}
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p1
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} {44 abcde}
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test upvar-6.3 {retargeting an upvar} {
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set x 44
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set y abcde
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proc p1 {} {
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upvar y x
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lappend result $x
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global x
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lappend result $x
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}
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p1
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} {abcde 44}
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test upvar-7.1 {upvar to same level} {
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set x 44
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set y 55
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catch {unset uv}
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upvar #0 x uv
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set uv abc
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upvar 0 y uv
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set uv xyzzy
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list $x $y
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} {abc xyzzy}
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test upvar-7.2 {upvar to same level} {
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set x 1234
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set y 4567
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proc p1 {x y} {
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upvar 0 x uv
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set uv $y
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return "$x $y"
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}
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p1 44 89
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} {89 89}
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test upvar-7.3 {upvar to same level} {
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set x 1234
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set y 4567
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proc p1 {x y} {
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upvar #1 x uv
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set uv $y
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return "$x $y"
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}
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p1 xyz abc
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} {abc abc}
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test upvar-8.1 {errors in upvar command} {
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list [catch upvar msg] $msg
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} {1 {wrong # args: should be "upvar ?level? otherVar localVar ?otherVar localVar ...?"}}
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test upvar-8.2 {errors in upvar command} {
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list [catch {upvar 1} msg] $msg
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} {1 {wrong # args: should be "upvar ?level? otherVar localVar ?otherVar localVar ...?"}}
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test upvar-8.3 {errors in upvar command} {
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proc p1 {} {upvar a b c}
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list [catch p1 msg] $msg
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} {1 {wrong # args: should be "upvar ?level? otherVar localVar ?otherVar localVar ...?"}}
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test upvar-8.4 {errors in upvar command} {
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proc p1 {} {set a 33; upvar b a}
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list [catch p1 msg] $msg
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} {1 {variable "a" already exists}}
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