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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.
# Copyright (c) 1998-1999 by Scriptics Corporation.
#
# See the file "license.terms" for information on usage and redistribution of
# this file, and for a DISCLAIMER OF ALL WARRANTIES.
if {[lsearch [namespace children] ::tcltest] == -1} {
package require tcltest
namespace import -force ::tcltest::*
}
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} -returnCodes error -body {
apply {{} {
uplevel #2 {set y 222}
}}
} -result {bad level "#2"}
test uplevel-4.2 {error: non-existent level} -returnCodes error -body {
apply {{} {
uplevel 3 {set a b}
}}
} -result {bad level "3"}
test uplevel-4.3 {error: not enough args} -returnCodes error -body {
uplevel
} -result {wrong # args: should be "uplevel ?level? command ?arg ...?"}
test uplevel-4.4 {error: not enough args} -returnCodes error -body {
apply {{} {
uplevel 1
}}
} -result {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
namespace eval ns1 {
proc set args {return ::ns1}
}
proc a2 {} {
uplevel {set x ::}
}
test uplevel-6.1 {uplevel and shadowed cmds} {
set res [namespace eval ns1 a2]
lappend res [namespace eval ns2 a2]
lappend res [namespace eval ns1 a2]
namespace eval ns1 {rename set {}}
lappend res [namespace eval ns1 a2]
} {::ns1 :: ::ns1 ::}
#
# These tests verify that upleveled scripts run in the correct level and access
# the proper variables.
#
test uplevel-7.1 {var access, no LVT in either level} -setup {
set x 1
unset -nocomplain y z
} -body {
namespace eval foo {
set x 2
set y 2
uplevel 1 {
set x 3
set y 3
set z 3
}
}
list $x $y $z
} -cleanup {
namespace delete foo
unset -nocomplain x y z
} -result {3 3 3}
test uplevel-7.2 {var access, no LVT in upper level} -setup {
set x 1
unset -nocomplain y z
} -body {
proc foo {} {
set x 2
set y 2
uplevel 1 {
set x 3
set y 3
set z 3
}
}
foo
list $x $y $z
} -cleanup {
rename foo {}
unset -nocomplain x y z
} -result {3 3 3}
test uplevel-7.3 {var access, LVT in upper level} -setup {
proc moo {} {
set x 1; #var in LVT
unset -nocomplain y z
foo
list $x $y $z
}
} -body {
proc foo {} {
set x 2
set y 2
uplevel 1 {
set x 3
set y 3
set z 3
}
}
foo
moo
} -cleanup {
rename foo {}
rename moo {}
} -result {3 3 3}
# cleanup
::tcltest::cleanupTests
return
# Local Variables:
# mode: tcl
# fill-column: 78
# End:
|
