# Commands covered: lmap, continue, break # # 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 © 1991-1993 The Regents of the University of California. # Copyright © 1994-1997 Sun Microsystems, Inc. # Copyright © 2011 Trevor Davel # # See the file "license.terms" for information on usage and redistribution # of this file, and for a DISCLAIMER OF ALL WARRANTIES. # # RCS: @(#) $Id: $ if {"::tcltest" ni [namespace children]} { package require tcltest 2.5 namespace import -force ::tcltest::* } unset -nocomplain a b i x # ----- Non-compiled operation ----------------------------------------------- # Basic "lmap" operation (non-compiled) test lmap-1.1 {basic lmap tests} { set a {} lmap i {a b c d} { set a [concat $a $i] } } {a {a b} {a b c} {a b c d}} test lmap-1.2 {basic lmap tests} { lmap i {a b {{c d} e} {123 {{x}}}} { set i } } {a b {{c d} e} {123 {{x}}}} test lmap-1.2a {basic lmap tests} { lmap i {a b {{c d} e} {123 {{x}}}} { return -level 0 $i } } {a b {{c d} e} {123 {{x}}}} test lmap-1.4 {basic lmap tests} -returnCodes error -body { lmap } -result {wrong # args: should be "lmap varList list ?varList list ...? command"} test lmap-1.6 {basic lmap tests} -returnCodes error -body { lmap i } -result {wrong # args: should be "lmap varList list ?varList list ...? command"} test lmap-1.8 {basic lmap tests} -returnCodes error -body { lmap i j } -result {wrong # args: should be "lmap varList list ?varList list ...? command"} test lmap-1.10 {basic lmap tests} -returnCodes error -body { lmap i j k l } -result {wrong # args: should be "lmap varList list ?varList list ...? command"} test lmap-1.11 {basic lmap tests} { lmap i {} { set i } } {} test lmap-1.12 {basic lmap tests} { lmap i {} { return -level 0 x } } {} test lmap-1.13 {lmap errors} -returnCodes error -body { lmap {{a}{b}} {1 2 3} {} } -result {list element in braces followed by "{b}" instead of space} test lmap-1.14 {lmap errors} -returnCodes error -body { lmap a {{1 2}3} {} } -result {list element in braces followed by "3" instead of space} unset -nocomplain a test lmap-1.15 {lmap errors} -setup { unset -nocomplain a } -body { set a(0) 44 list [catch {lmap a {1 2 3} {}} msg o] $msg $::errorInfo } -result {1 {can't set "a": variable is array} {can't set "a": variable is array (setting lmap loop variable "a") invoked from within "lmap a {1 2 3} {}"}} test lmap-1.16 {lmap errors} -returnCodes error -body { lmap {} {} {} } -result {lmap varlist is empty} unset -nocomplain a # Parallel "lmap" operation (non-compiled) test lmap-2.1 {parallel lmap tests} { lmap {a b} {1 2 3 4} { list $b $a } } {{2 1} {4 3}} test lmap-2.2 {parallel lmap tests} { lmap {a b} {1 2 3 4 5} { list $b $a } } {{2 1} {4 3} {{} 5}} test lmap-2.3 {parallel lmap tests} { lmap a {1 2 3} b {4 5 6} { list $b $a } } {{4 1} {5 2} {6 3}} test lmap-2.4 {parallel lmap tests} { lmap a {1 2 3} b {4 5 6 7 8} { list $b $a } } {{4 1} {5 2} {6 3} {7 {}} {8 {}}} test lmap-2.5 {parallel lmap tests} { lmap {a b} {a b A B aa bb} c {c C cc CC} { list $a $b $c } } {{a b c} {A B C} {aa bb cc} {{} {} CC}} test lmap-2.6 {parallel lmap tests} { lmap a {1 2 3} b {1 2 3} c {1 2 3} d {1 2 3} e {1 2 3} { list $a$b$c$d$e } } {11111 22222 33333} test lmap-2.7 {parallel lmap tests} { lmap a {} b {1 2 3} c {1 2} d {1 2 3 4} e {{1 2}} { set x $a$b$c$d$e } } {{1111 2} 222 33 4} test lmap-2.8 {parallel lmap tests} { lmap a {} b {1 2 3} c {1 2} d {1 2 3 4} e {{1 2}} { join [list $a $b $c $d $e] . } } {{.1.1.1.1 2} .2.2.2. .3..3. ...4.} test lmap-2.9 {lmap only sets vars if repeating loop} { namespace eval ::lmap_test { set rgb {65535 0 0} lmap {r g b} [set rgb] {} set ::x "r=$r, g=$g, b=$b" } namespace delete ::lmap_test set x } {r=65535, g=0, b=0} test lmap-2.10 {lmap only supports local scalar variables} -setup { unset -nocomplain a } -body { lmap {a(3)} {1 2 3 4} {set {a(3)}} } -result {1 2 3 4} unset -nocomplain a # "lmap" with "continue" and "break" (non-compiled) test lmap-3.1 {continue tests} { lmap i {a b c d} { if {[string compare $i "b"] == 0} continue set i } } {a c d} test lmap-3.2 {continue tests} { set x 0 list [lmap i {a b c d} { incr x if {[string compare $i "b"] != 0} continue set i }] $x } {b 4} test lmap-3.3 {break tests} { set x 0 list [lmap i {a b c d} { incr x if {[string compare $i "c"] == 0} break set i }] $x } {{a b} 3} # Check for bug similar to #406709 test lmap-3.4 {break tests} { set a 1 lmap b b {list [concat a; break]; incr a} incr a } {2} # ----- Compiled operation --------------------------------------------------- # Basic "lmap" operation (compiled) test lmap-4.1 {basic lmap tests} { apply {{} { set a {} lmap i {a b c d} { set a [concat $a $i] } }} } {a {a b} {a b c} {a b c d}} test lmap-4.2 {basic lmap tests} { apply {{} { lmap i {a b {{c d} e} {123 {{x}}}} { set i } }} } {a b {{c d} e} {123 {{x}}}} test lmap-4.2a {basic lmap tests} { apply {{} { lmap i {a b {{c d} e} {123 {{x}}}} { return -level 0 $i } }} } {a b {{c d} e} {123 {{x}}}} test lmap-4.4 {basic lmap tests} -returnCodes error -body { apply {{} { lmap }} } -result {wrong # args: should be "lmap varList list ?varList list ...? command"} test lmap-4.6 {basic lmap tests} -returnCodes error -body { apply {{} { lmap i }} } -result {wrong # args: should be "lmap varList list ?varList list ...? command"} test lmap-4.8 {basic lmap tests} -returnCodes error -body { apply {{} { lmap i j }} } -result {wrong # args: should be "lmap varList list ?varList list ...? command"} test lmap-4.10 {basic lmap tests} -returnCodes error -body { apply {{} { lmap i j k l }} } -result {wrong # args: should be "lmap varList list ?varList list ...? command"} test lmap-4.11 {basic lmap tests} { apply {{} { lmap i {} { set i } }} } {} test lmap-4.12 {basic lmap tests} { apply {{} { lmap i {} { return -level 0 x } }} } {} test lmap-4.13 {lmap errors} -returnCodes error -body { apply {{} { lmap {{a}{b}} {1 2 3} {} }} } -result {list element in braces followed by "{b}" instead of space} test lmap-4.14 {lmap errors} -returnCodes error -body { apply {{} { lmap a {{1 2}3} {} }} } -result {list element in braces followed by "3" instead of space} unset -nocomplain a test lmap-4.15 {lmap errors} { apply {{} { set a(0) 44 list [catch {lmap a {1 2 3} {}} msg o] $msg $::errorInfo }} } {1 {can't set "a": variable is array} {can't set "a": variable is array while executing "lmap a {1 2 3} {}"}} test lmap-4.16 {lmap errors} -returnCodes error -body { apply {{} { lmap {} {} {} }} } -result {lmap varlist is empty} unset -nocomplain a # Parallel "lmap" operation (compiled) test lmap-5.1 {parallel lmap tests} { apply {{} { lmap {a b} {1 2 3 4} { list $b $a } }} } {{2 1} {4 3}} test lmap-5.2 {parallel lmap tests} { apply {{} { lmap {a b} {1 2 3 4 5} { list $b $a } }} } {{2 1} {4 3} {{} 5}} test lmap-5.3 {parallel lmap tests} { apply {{} { lmap a {1 2 3} b {4 5 6} { list $b $a } }} } {{4 1} {5 2} {6 3}} test lmap-5.4 {parallel lmap tests} { apply {{} { lmap a {1 2 3} b {4 5 6 7 8} { list $b $a } }} } {{4 1} {5 2} {6 3} {7 {}} {8 {}}} test lmap-5.5 {parallel lmap tests} { apply {{} { lmap {a b} {a b A B aa bb} c {c C cc CC} { list $a $b $c } }} } {{a b c} {A B C} {aa bb cc} {{} {} CC}} test lmap-5.6 {parallel lmap tests} { apply {{} { lmap a {1 2 3} b {1 2 3} c {1 2 3} d {1 2 3} e {1 2 3} { list $a$b$c$d$e } }} } {11111 22222 33333} test lmap-5.7 {parallel lmap tests} { apply {{} { lmap a {} b {1 2 3} c {1 2} d {1 2 3 4} e {{1 2}} { set x $a$b$c$d$e } }} } {{1111 2} 222 33 4} test lmap-5.8 {parallel lmap tests} { apply {{} { lmap a {} b {1 2 3} c {1 2} d {1 2 3 4} e {{1 2}} { join [list $a $b $c $d $e] . } }} } {{.1.1.1.1 2} .2.2.2. .3..3. ...4.} test lmap-5.9 {lmap only sets vars if repeating loop} { apply {{} { set rgb {65535 0 0} lmap {r g b} [set rgb] {} return "r=$r, g=$g, b=$b" }} } {r=65535, g=0, b=0} test lmap-5.10 {lmap only supports local scalar variables} { apply {{} { lmap {a(3)} {1 2 3 4} {set {a(3)}} }} } {1 2 3 4} # "lmap" with "continue" and "break" (compiled) test lmap-6.1 {continue tests} { apply {{} { lmap i {a b c d} { if {[string compare $i "b"] == 0} continue set i } }} } {a c d} test lmap-6.2 {continue tests} { apply {{} { list [lmap i {a b c d} { incr x if {[string compare $i "b"] != 0} continue set i }] $x }} } {b 4} test lmap-6.3 {break tests} { apply {{} { list [lmap i {a b c d} { incr x if {[string compare $i "c"] == 0} break set i }] $x }} } {{a b} 3} # Check for bug similar to #406709 test lmap-6.4 {break tests} { apply {{} { set a 1 lmap b b {list [concat a; break]; incr a} incr a }} } {2} # ----- Special cases and bugs ----------------------------------------------- test lmap-7.1 {compiled lmap backward jump works correctly} -setup { unset -nocomplain x } -body { array set x {0 zero 1 one 2 two 3 three} lsort [apply {{arrayName} { upvar 1 $arrayName a lmap member [array names a] { list $member [set a($member)] } }} x] } -result [lsort {{0 zero} {1 one} {2 two} {3 three}}] test lmap-7.2 {noncompiled lmap and shared variable or value list objects that are converted to another type} -setup { unset -nocomplain x } -body { lmap {12.0} {a b c} { set x 12.0 set x [expr {$x + 1}] } } -result {13.0 13.0 13.0} # Test for incorrect "double evaluation" semantics test lmap-7.3 {delayed substitution of body} { apply {{} { set a 0 lmap a [list 1 2 3] " set x $a " return $x }} } {0} # Related to "foreach" test for [Bug 1189274]; crash on failure test lmap-7.4 {empty list handling} { proc crash {} { rename crash {} set a "x y z" set b "" lmap aa $a bb $b { set x "aa = $aa bb = $bb" } } crash } {{aa = x bb = } {aa = y bb = } {aa = z bb = }} # Related to [Bug 1671138]; infinite loop with empty var list in bytecompiled # version. test lmap-7.5 {compiled empty var list} -returnCodes error -body { proc foo {} { lmap {} x { error "reached body" } } foo } -cleanup { catch {rename foo ""} } -result {lmap varlist is empty} test lmap-7.6 {lmap: related to "foreach" [Bug 1671087]} -setup { proc demo {} { set vals {1 2 3 4} trace add variable x write {string length $vals ;# } lmap {x y} $vals {format $y} } } -body { demo } -cleanup { rename demo {} } -result {2 4} # Huge lists must not overflow the bytecode interpreter (development bug) test lmap-7.7 {huge list non-compiled} -setup { unset -nocomplain a b x } -body { set x [lmap a [lrepeat 1000000 x] { set b y$a }] list $b [llength $x] [string length $x] } -result {yx 1000000 2999999} test lmap-7.8 {huge list compiled} -setup { unset -nocomplain a b x } -body { set x [apply {{times} { global b lmap a [lrepeat $times x] { set b Y$a } }} 1000000] list $b [llength $x] [string length $x] } -result {Yx 1000000 2999999} test lmap-7.9 {error then dereference loop var (dev bug)} { catch { lmap a 0 b {1 2 3} { error x } } set a } 0 test lmap-7.9a {error then dereference loop var (dev bug)} { catch { lmap a 0 b {1 2 3} { incr a $b; error x } } set a } 1 # ----- Coroutines ----------------------------------------------------------- test lmap-8.1 {lmap non-compiled with coroutines} -body { coroutine coro apply {{} { set values [yield [info coroutine]] eval lmap i [list $values] {{ yield $i }} }} ;# returns 'coro' coro {a b c d e f} ;# -> a coro 1 ;# -> b coro 2 ;# -> c coro 3 ;# -> d coro 4 ;# -> e coro 5 ;# -> f list [coro 6] [info commands coro] } -cleanup { catch {rename coro ""} } -result {{1 2 3 4 5 6} {}} test lmap-8.2 {lmap compiled with coroutines} -body { coroutine coro apply {{} { set values [yield [info coroutine]] lmap i $values { yield $i } }} ;# returns 'coro' coro {a b c d e f} ;# -> a coro 1 ;# -> b coro 2 ;# -> c coro 3 ;# -> d coro 4 ;# -> e coro 5 ;# -> f list [coro 6] [info commands coro] } -cleanup { catch {rename coro ""} } -result {{1 2 3 4 5 6} {}} # cleanup unset -nocomplain a x catch {rename foo {}} ::tcltest::cleanupTests return # Local Variables: # mode: tcl # End: