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- # Commands covered: foreach, for, 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 (c) 1991-1993 The Regents of the University of California.
- # Copyright (c) 1994 Sun Microsystems, Inc.
- #
- # See the file "license.terms" for information on usage and redistribution
- # of this file, and for a DISCLAIMER OF ALL WARRANTIES.
- #
- # @(#) for.test 1.9 94/12/17 16:19:57
-
- if {[string compare test [info procs test]] == 1} then {source defs}
-
- # Basic "foreach" operation.
-
- test for-1.1 {basic foreach tests} {
- set a {}
- foreach i {a b c d} {
- set a [concat $a $i]
- }
- set a
- } {a b c d}
- test for-1.2 {basic foreach tests} {
- set a {}
- foreach i {a b {{c d} e} {123 {{x}}}} {
- set a [concat $a $i]
- }
- set a
- } {a b {c d} e 123 {{x}}}
- test for-1.3 {basic foreach tests} {catch {foreach} msg} 1
- test for-1.4 {basic foreach tests} {
- catch {foreach} msg
- set msg
- } {wrong # args: should be "foreach varName list command"}
- test for-1.5 {basic foreach tests} {catch {foreach i} msg} 1
- test for-1.6 {basic foreach tests} {
- catch {foreach i} msg
- set msg
- } {wrong # args: should be "foreach varName list command"}
- test for-1.7 {basic foreach tests} {catch {foreach i j} msg} 1
- test for-1.8 {basic foreach tests} {
- catch {foreach i j} msg
- set msg
- } {wrong # args: should be "foreach varName list command"}
- test for-1.9 {basic foreach tests} {catch {foreach i j k l} msg} 1
- test for-1.10 {basic foreach tests} {
- catch {foreach i j k l} msg
- set msg
- } {wrong # args: should be "foreach varName list command"}
- test for-1.11 {basic foreach tests} {
- set a {}
- foreach i {} {
- set a [concat $a $i]
- }
- set a
- } {}
- test for-1.11 {foreach errors} {
- catch {unset a}
- set a(0) 44
- list [catch {foreach a {1 2 3} {}} msg] $msg
- } {1 {couldn't set loop variable}}
- catch {unset a}
-
- # Check "continue".
-
- test for-2.1 {continue tests} {catch continue} 4
- test for-2.2 {continue tests} {
- set a {}
- foreach i {a b c d} {
- if {[string compare $i "b"] == 0} continue
- set a [concat $a $i]
- }
- set a
- } {a c d}
- test for-2.3 {continue tests} {
- set a {}
- foreach i {a b c d} {
- if {[string compare $i "b"] != 0} continue
- set a [concat $a $i]
- }
- set a
- } {b}
- test for-2.4 {continue tests} {catch {continue foo} msg} 1
- test for-2.5 {continue tests} {
- catch {continue foo} msg
- set msg
- } {wrong # args: should be "continue"}
-
- # Check "break".
-
- test for-3.1 {break tests} {catch break} 3
- test for-3.2 {break tests} {
- set a {}
- foreach i {a b c d} {
- if {[string compare $i "c"] == 0} break
- set a [concat $a $i]
- }
- set a
- } {a b}
- test for-3.3 {break tests} {catch {break foo} msg} 1
- test for-3.4 {break tests} {
- catch {break foo} msg
- set msg
- } {wrong # args: should be "break"}
-
- # Check "for" and its use of continue and break.
-
- test for-4.1 {for tests} {
- set a {}
- for {set i 1} {$i<6} {set i [expr $i+1]} {
- set a [concat $a $i]
- }
- set a
- } {1 2 3 4 5}
- test for-4.2 {for tests} {
- set a {}
- for {set i 1} {$i<6} {set i [expr $i+1]} {
- if $i==4 continue
- set a [concat $a $i]
- }
- set a
- } {1 2 3 5}
- test for-4.3 {for tests} {
- set a {}
- for {set i 1} {$i<6} {set i [expr $i+1]} {
- if $i==4 break
- set a [concat $a $i]
- }
- set a
- } {1 2 3}
- test for-4.4 {for tests} {catch {for 1 2 3} msg} 1
- test for-4.5 {for tests} {
- catch {for 1 2 3} msg
- set msg
- } {wrong # args: should be "for start test next command"}
- test for-4.6 {for tests} {catch {for 1 2 3 4 5} msg} 1
- test for-4.7 {for tests} {
- catch {for 1 2 3 4 5} msg
- set msg
- } {wrong # args: should be "for start test next command"}
- test for-4.8 {for tests} {
- set a {xyz}
- for {set i 1} {$i<6} {set i [expr $i+1]} {}
- set a
- } xyz
- test for-4.9 {for tests} {
- set a {}
- for {set i 1} {$i<6} {set i [expr $i+1]; if $i==4 break} {
- set a [concat $a $i]
- }
- set a
- } {1 2 3}
-