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# Commands covered: uplevel
#
# 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.
# Copyright (c) 1994 Sun Microsystems, Inc.
#
# See the file "license.terms" for information on usage and redistribution
# of this file, and for a DISCLAIMER OF ALL WARRANTIES.
#
# RCS: @(#) $Id: uplevel.test,v 1.2 1998/09/14 18:40:14 stanton Exp $
if {[string compare test [info procs test]] == 1} then {source defs}
proc a {x y} {
newset z [expr $x+$y]
return $z
}
proc newset {name value} {
uplevel set $name $value
uplevel 1 {uplevel 1 {set xyz 22}}
}
test uplevel-1.1 {simple operation} {
set xyz 0
a 22 33
} 55
test uplevel-1.2 {command is another uplevel command} {
set xyz 0
a 22 33
set xyz
} 22
proc a1 {} {
b1
global a a1
set a $x
set a1 $y
}
proc b1 {} {
c1
global b b1
set b $x
set b1 $y
}
proc c1 {} {
uplevel 1 set x 111
uplevel #2 set y 222
uplevel 2 set x 333
uplevel #1 set y 444
uplevel 3 set x 555
uplevel #0 set y 666
}
a1
test uplevel-2.1 {relative and absolute uplevel} {set a} 333
test uplevel-2.2 {relative and absolute uplevel} {set a1} 444
test uplevel-2.3 {relative and absolute uplevel} {set b} 111
test uplevel-2.4 {relative and absolute uplevel} {set b1} 222
test uplevel-2.5 {relative and absolute uplevel} {set x} 555
test uplevel-2.6 {relative and absolute uplevel} {set y} 666
test uplevel-3.1 {uplevel to same level} {
set x 33
uplevel #0 set x 44
set x
} 44
test uplevel-3.2 {uplevel to same level} {
set x 33
uplevel 0 set x
} 33
test uplevel-3.3 {uplevel to same level} {
set y xxx
proc a1 {} {set y 55; uplevel 0 set y 66; return $y}
a1
} 66
test uplevel-3.4 {uplevel to same level} {
set y zzz
proc a1 {} {set y 55; uplevel #1 set y}
a1
} 55
test uplevel-4.1 {error: non-existent level} {
list [catch c1 msg] $msg
} {1 {bad level "#2"}}
test uplevel-4.2 {error: non-existent level} {
proc c2 {} {uplevel 3 {set a b}}
list [catch c2 msg] $msg
} {1 {bad level "3"}}
test uplevel-4.3 {error: not enough args} {
list [catch uplevel msg] $msg
} {1 {wrong # args: should be "uplevel ?level? command ?arg ...?"}}
test uplevel-4.4 {error: not enough args} {
proc upBug {} {uplevel 1}
list [catch upBug msg] $msg
} {1 {wrong # args: should be "uplevel ?level? command ?arg ...?"}}
proc a2 {} {
uplevel a3
}
proc a3 {} {
global x y
set x [info level]
set y [info level 1]
}
a2
test uplevel-5.1 {info level} {set x} 1
test uplevel-5.2 {info level} {set y} a3
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