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# Commands covered: apply
#
# 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) 1994-1996 Sun Microsystems, Inc.
# Copyright (c) 1998-1999 by Scriptics Corporation.
# Copyright (c) 2005-2006 Miguel Sofer
#
# See the file "license.terms" for information on usage and redistribution
# of this file, and for a DISCLAIMER OF ALL WARRANTIES.
source [file dirname [info script]]/testing.tcl
needs cmd apply
# Tests for wrong number of arguments
test apply-1.1 {too few arguments} -returnCodes error -body {
apply
} -result {wrong # args: should be "apply lambdaExpr ?arg ...?"}
# Tests for malformed lambda
test apply-2.0 {malformed lambda} -returnCodes error -body {
set lambda a
apply $lambda
} -result {can't interpret "a" as a lambda expression}
test apply-2.1 {malformed lambda} -returnCodes error -body {
set lambda [list a b c d]
apply $lambda
} -result {can't interpret "a b c d" as a lambda expression}
test apply-2.2 {malformed lambda} -body {
set lambda [list {{}} boo]
apply $lambda
} -returnCodes error -match glob -result {*argument with no name}
test apply-2.3 {malformed lambda} {
set lambda [list {{a b c}} boo]
list [catch {apply $lambda} msg] $msg
} {1 {too many fields in argument specifier "a b c"}}
# Note that Jim allow both of these
test apply-2.4 {malformed lambda} tcl {
set lambda [list a(1) {return $a(1)}]
list [catch {apply $lambda x} msg] $msg
} {1 {formal parameter "a(1)" is an array element}}
test apply-2.5 {malformed lambda} tcl {
set lambda [list a::b {return $a::b}]
list [catch {apply $lambda x} msg] $msg
} {1 {formal parameter "a::b" is not a simple name}}
# Tests for runtime errors in the lambda expression
test apply-4.1 {error in arguments to lambda expression} -body {
set lambda [list x {set x 1}]
apply $lambda
} -returnCodes error -result {wrong # args: should be "apply lambdaExpr x"}
test apply-4.2 {error in arguments to lambda expression} -body {
set lambda [list x {set x 1}]
apply $lambda a b
} -returnCodes error -result {wrong # args: should be "apply lambdaExpr x"}
test apply-5.1 {runtime error in lambda expression} {
set lambda [list {} {error foo}]
list [catch {apply $lambda} msg] $msg
} {1 foo}
# Tests for correct execution; as the implementation is the same as that for
# procs, the general functionality is mostly tested elsewhere
test apply-6.1 {info level} {
set lev [info level]
set lambda [list {} {info level}]
expr {[apply $lambda] - $lev}
} 1
test apply-6.2 {info level} tcl {
set lambda [list {} {info level 0}]
apply $lambda
} {apply {{} {info level 0}}}
test apply-6.3 {info level} tcl {
set lambda [list args {info level 0}]
apply $lambda x y
} {apply {args {info level 0}} x y}
# Tests for correct argument treatment
set applyBody {
set res {}
foreach v [info locals] {
if {$v eq "res"} continue
lappend res [list $v [set $v]]
}
set res
}
test apply-8.1 {args treatment} {
apply [list args $applyBody] 1 2 3
} {{args {1 2 3}}}
test apply-8.2 {args treatment} {
apply [list {x args} $applyBody] 1 2
} {{x 1} {args 2}}
test apply-8.3 {args treatment} {
apply [list {x args} $applyBody] 1 2 3
} {{x 1} {args {2 3}}}
test apply-8.4 {default values} {
apply [list {{x 1} {y 2}} $applyBody]
} {{x 1} {y 2}}
test apply-8.5 {default values} {
apply [list {{x 1} {y 2}} $applyBody] 3 4
} {{x 3} {y 4}}
test apply-8.6 {default values} {
apply [list {{x 1} {y 2}} $applyBody] 3
} {{x 3} {y 2}}
test apply-8.7 {default values} {
apply [list {x {y 2}} $applyBody] 1
} {{x 1} {y 2}}
test apply-8.8 {default values} {
apply [list {x {y 2}} $applyBody] 1 3
} {{x 1} {y 3}}
test apply-8.9 {default values} {
apply [list {x {y 2} args} $applyBody] 1
} {{x 1} {y 2} {args {}}}
test apply-8.10 {default values} {
apply [list {x {y 2} args} $applyBody] 1 3
} {{x 1} {y 3} {args {}}}
::tcltest::cleanupTests
return
# Local Variables:
# mode: tcl
# fill-column: 78
# End:
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