# 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. # # RCS: @(#) $Id: apply.test,v 1.12.2.1 2009/10/29 17:21:17 dgp Exp $ if {[lsearch [namespace children] ::tcltest] == -1} { package require tcltest 2.2 namespace import -force ::tcltest::* } if {[info commands ::apply] eq {}} { return } testConstraint memory [llength [info commands memory]] # Tests for wrong number of arguments test apply-1.1 {too few arguments} { set res [catch apply msg] list $res $msg } {1 {wrong # args: should be "apply lambdaExpr ?arg1 arg2 ...?"}} # Tests for malformed lambda test apply-2.0 {malformed lambda} { set lambda a set res [catch {apply $lambda} msg] list $res $msg } {1 {can't interpret "a" as a lambda expression}} test apply-2.1 {malformed lambda} { set lambda [list a b c d] set res [catch {apply $lambda} msg] list $res $msg } {1 {can't interpret "a b c d" as a lambda expression}} test apply-2.2 {malformed lambda} { set lambda [list {{}} boo] set res [catch {apply $lambda} msg] list $res $msg $::errorInfo } {1 {argument with no name} {argument with no name (parsing lambda expression "{{}} boo") invoked from within "apply $lambda"}} test apply-2.3 {malformed lambda} { set lambda [list {{a b c}} boo] set res [catch {apply $lambda} msg] list $res $msg $::errorInfo } {1 {too many fields in argument specifier "a b c"} {too many fields in argument specifier "a b c" (parsing lambda expression "{{a b c}} boo") invoked from within "apply $lambda"}} test apply-2.4 {malformed lambda} { set lambda [list a(1) boo] set res [catch {apply $lambda} msg] list $res $msg $::errorInfo } {1 {formal parameter "a(1)" is an array element} {formal parameter "a(1)" is an array element (parsing lambda expression "a(1) boo") invoked from within "apply $lambda"}} test apply-2.5 {malformed lambda} { set lambda [list a::b boo] set res [catch {apply $lambda} msg] list $res $msg $::errorInfo } {1 {formal parameter "a::b" is not a simple name} {formal parameter "a::b" is not a simple name (parsing lambda expression "a::b boo") invoked from within "apply $lambda"}} # Tests for runtime errors in the lambda expression test apply-3.1 {non-existing namespace} -body { apply [list x {set x 1} ::NONEXIST::FOR::SURE] x } -returnCodes error -result {namespace "::NONEXIST::FOR::SURE" not found} test apply-3.2 {non-existing namespace} -body { namespace eval ::NONEXIST::FOR::SURE {} set lambda [list x {set x 1} ::NONEXIST::FOR::SURE] apply $lambda x namespace delete ::NONEXIST apply $lambda x } -returnCodes error -result {namespace "::NONEXIST::FOR::SURE" not found} test apply-3.3 {non-existing namespace} -body { apply [list x {set x 1} NONEXIST::FOR::SURE] x } -returnCodes error -result {namespace "::NONEXIST::FOR::SURE" not found} test apply-3.4 {non-existing namespace} -body { namespace eval ::NONEXIST::FOR::SURE {} set lambda [list x {set x 1} NONEXIST::FOR::SURE] apply $lambda x namespace delete ::NONEXIST apply $lambda x } -returnCodes error -result {namespace "::NONEXIST::FOR::SURE" not found} test apply-4.1 {error in arguments to lambda expression} { set lambda [list x {set x 1}] set res [catch {apply $lambda} msg] list $res $msg } {1 {wrong # args: should be "apply {x {set x 1}} x"}} test apply-4.2 {error in arguments to lambda expression} { set lambda [list x {set x 1}] set res [catch {apply $lambda a b} msg] list $res $msg } {1 {wrong # args: should be "apply {x {set x 1}} x"}} test apply-4.3 {error in arguments to lambda expression} { set lambda [list x {set x 1}] interp alias {} foo {} ::apply $lambda set res [catch {foo a b} msg] list $res $msg [rename foo {}] } {1 {wrong # args: should be "foo x"} {}} test apply-4.4 {error in arguments to lambda expression} { set lambda [list x {set x 1}] interp alias {} foo {} ::apply $lambda a set res [catch {foo b} msg] list $res $msg [rename foo {}] } {1 {wrong # args: should be "foo"} {}} test apply-4.5 {error in arguments to lambda expression} { set lambda [list x {set x 1}] namespace eval a { namespace ensemble create -command ::bar -map {id {::a::const foo}} proc const val { return $val } proc alias {object slot = command args} { set map [namespace ensemble configure $object -map] dict set map $slot [linsert $args 0 $command] namespace ensemble configure $object -map $map } proc method {object name params body} { set params [linsert $params 0 self] alias $object $name = ::apply [list $params $body] $object } method ::bar boo x {return "[expr {$x*$x}] - $self"} } set res [catch {bar boo} msg] list $res $msg [namespace delete ::a] } {1 {wrong # args: should be "bar boo x"} {}} test apply-5.1 {runtime error in lambda expression} { set lambda [list {} {error foo}] set res [catch {apply $lambda}] list $res $::errorInfo } {1 {foo while executing "error foo" (lambda term "{} {error foo}" line 1) invoked from within "apply $lambda"}} # 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} { set lambda [list {} {info level 0}] apply $lambda } {apply {{} {info level 0}}} test apply-6.3 {info level} { set lambda [list args {info level 0}] apply $lambda x y } {apply {args {info level 0}} x y} # Tests for correct namespace scope namespace eval ::testApply { proc testApply args {return testApply} } test apply-7.1 {namespace access} { set ::testApply::x 0 set body {set x 1; set x} list [apply [list args $body ::testApply]] $::testApply::x } {1 0} test apply-7.2 {namespace access} { set ::testApply::x 0 set body {variable x; set x} list [apply [list args $body ::testApply]] $::testApply::x } {0 0} test apply-7.3 {namespace access} { set ::testApply::x 0 set body {variable x; set x 1} list [apply [list args $body ::testApply]] $::testApply::x } {1 1} test apply-7.4 {namespace access} { set ::testApply::x 0 set body {testApply} apply [list args $body ::testApply] } testApply test apply-7.5 {namespace access} { set ::testApply::x 0 set body {set x 1; set x} list [apply [list args $body testApply]] $::testApply::x } {1 0} test apply-7.6 {namespace access} { set ::testApply::x 0 set body {variable x; set x} list [apply [list args $body testApply]] $::testApply::x } {0 0} test apply-7.7 {namespace access} { set ::testApply::x 0 set body {variable x; set x 1} list [apply [list args $body testApply]] $::testApply::x } {1 1} test apply-7.8 {namespace access} { set ::testApply::x 0 set body {testApply} apply [list args $body testApply] } testApply # Tests for correct argument treatment set applyBody { set res {} foreach v [info locals] { if {$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 {}}} # Tests for leaks test apply-9.1 {leaking internal rep} -setup { proc getbytes {} { set lines [split [memory info] "\n"] lindex $lines 3 3 } set lam [list {} {set a 1}] } -constraints memory -body { set end [getbytes] for {set i 0} {$i < 5} {incr i} { ::apply [lrange $lam 0 end] set tmp $end set end [getbytes] } set leakedBytes [expr {$end - $tmp}] } -cleanup { rename getbytes {} unset -nocomplain lam end i tmp leakedBytes } -result 0 test apply-9.2 {leaking internal rep} -setup { proc getbytes {} { set lines [split [memory info] "\n"] lindex $lines 3 3 } } -constraints memory -body { set end [getbytes] for {set i 0} {$i < 5} {incr i} { ::apply [list {} {set a 1}] set tmp $end set end [getbytes] } set leakedBytes [expr {$end - $tmp}] } -cleanup { rename getbytes {} unset -nocomplain end i tmp leakedBytes } -result 0 test apply-9.3 {leaking internal rep} -setup { proc getbytes {} { set lines [split [memory info] "\n"] lindex $lines 3 3 } } -constraints memory -body { set end [getbytes] for {set i 0} {$i < 5} {incr i} { set x [list {} {set a 1} ::NS::THAT::DOES::NOT::EXIST] catch {::apply $x} set x {} set tmp $end set end [getbytes] } set leakedBytes [expr {$end - $tmp}] } -cleanup { rename getbytes {} unset -nocomplain end i x tmp leakedBytes } -result 0 # Tests for the avoidance of recompilation # cleanup namespace delete testApply ::tcltest::cleanupTests return