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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.
+#
+# RCS: @(#) $Id: apply.test,v 1.1 2006/02/01 19:26:02 dgp Exp $
+
+if {[lsearch [namespace children] ::tcltest] == -1} {
+ package require tcltest
+ namespace import -force ::tcltest::*
+}
+
+if {[info commands ::apply] eq {}} {
+ return
+}
+
+# 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} {
+ set lambda [list x {set x 1} ::NONEXIST::FOR::SURE]
+ set res [catch {apply $lambda x} msg]
+ list $res $msg
+} {1 {cannot find namespace "::::NONEXIST::FOR::SURE"}}
+
+test apply-3.2 {non-existing namespace} {
+ namespace eval ::NONEXIST::FOR::SURE {}
+ set lambda [list x {set x 1} ::NONEXIST::FOR::SURE]
+ apply $lambda x
+ namespace delete ::NONEXIST
+ set res [catch {apply $lambda x} msg]
+ list $res $msg
+} {1 {cannot find namespace "::::NONEXIST::FOR::SURE"}}
+
+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 x y} msg]
+ list $res $msg
+} {1 {wrong # args: should be "apply {x {set x 1}} x"}}
+
+# Tests for correct execution; as the implementation is the same as that for
+# procs, the general functionality is mostly tested elsewhere
+
+test apply-5.1 {info level} {
+ set lev [info level]
+ set lambda [list {} {info level}]
+ expr {[apply $lambda] - $lev}
+} 1
+
+test apply-5.2 {info level} {
+ set lambda [list {} {info level 0}]
+ apply $lambda
+} {apply {{} {info level 0}}}
+
+test apply-5.3 {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 {
+ set x 0
+ proc testApply args {return testApply}
+}
+
+test apply-6.1 {namespace access} {
+ set body {set x 1; set x}
+ list [apply [list args $body ::testApply]] $::testApply::x
+} {1 0}
+
+test apply-6.2 {namespace access} {
+ set body {variable x; set x}
+ list [apply [list args $body ::testApply]] $::testApply::x
+} {0 0}
+
+test apply-6.3 {namespace access} {
+ set body {variable x; set x 1}
+ list [apply [list args $body ::testApply]] $::testApply::x
+} {1 1}
+
+test apply-6.3 {namespace access} {
+ 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-7.1 {args treatment} {
+ apply [list args $applyBody] 1 2 3
+} {{args {1 2 3}}}
+
+test apply-7.2 {args treatment} {
+ apply [list {x args} $applyBody] 1 2
+} {{x 1} {args 2}}
+
+test apply-7.3 {args treatment} {
+ apply [list {x args} $applyBody] 1 2 3
+} {{x 1} {args {2 3}}}
+
+test apply-7.4 {default values} {
+ apply [list {{x 1} {y 2}} $applyBody]
+} {{x 1} {y 2}}
+
+test apply-7.5 {default values} {
+ apply [list {{x 1} {y 2}} $applyBody] 3 4
+} {{x 3} {y 4}}
+
+test apply-7.6 {default values} {
+ apply [list {{x 1} {y 2}} $applyBody] 3
+} {{x 3} {y 2}}
+
+test apply-7.7 {default values} {
+ apply [list {x {y 2}} $applyBody] 1
+} {{x 1} {y 2}}
+
+test apply-7.8 {default values} {
+ apply [list {x {y 2}} $applyBody] 1 3
+} {{x 1} {y 3}}
+
+test apply-7.9 {default values} {
+ apply [list {x {y 2} args} $applyBody] 1
+} {{x 1} {y 2} {args {}}}
+
+test apply-7.10 {default values} {
+ apply [list {x {y 2} args} $applyBody] 1 3
+} {{x 1} {y 3} {args {}}}
+
+# Tests for the avoidance of recompilation
+
+# cleanup
+
+namespace delete testApply
+
+::tcltest::cleanupTests
+return