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- # Commands covered: while
- #
- # 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.
- # All rights reserved.
- #
- # Permission is hereby granted, without written agreement and without
- # license or royalty fees, to use, copy, modify, and distribute this
- # software and its documentation for any purpose, provided that the
- # above copyright notice and the following two paragraphs appear in
- # all copies of this software.
- #
- # IN NO EVENT SHALL THE UNIVERSITY OF CALIFORNIA BE LIABLE TO ANY PARTY FOR
- # DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES ARISING OUT
- # OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN IF THE UNIVERSITY OF
- # CALIFORNIA HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- #
- # THE UNIVERSITY OF CALIFORNIA SPECIFICALLY DISCLAIMS ANY WARRANTIES,
- # INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
- # AND FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS
- # ON AN "AS IS" BASIS, AND THE UNIVERSITY OF CALIFORNIA HAS NO OBLIGATION TO
- # PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
- #
- # $Header: /user6/ouster/tcl/tests/RCS/while.test,v 1.7 93/04/21 11:18:58 ouster Exp $ (Berkeley)
-
- if {[string compare test [info procs test]] == 1} then {source defs}
-
- test while-1.1 {basic while loops} {
- set count 0
- while {$count < 10} {set count [expr $count+1]}
- set count
- } 10
- test while-1.2 {basic while loops} {
- set value xxx
- while {2 > 3} {set value yyy}
- set value
- } xxx
- test while-1.3 {basic while loops} {
- set value 1
- while {"true"} {
- incr value;
- if {$value > 5} {
- break;
- }
- }
- set value
- } 6
-
- test while-2.1 {continue in while loop} {
- set list {1 2 3 4 5}
- set index 0
- set result {}
- while {$index < 5} {
- if {$index == 2} {set index [expr $index+1]; continue}
- set result [concat $result [lindex $list $index]]
- set index [expr $index+1]
- }
- set result
- } {1 2 4 5}
-
- test while-3.1 {break in while loop} {
- set list {1 2 3 4 5}
- set index 0
- set result {}
- while {$index < 5} {
- if {$index == 3} break
- set result [concat $result [lindex $list $index]]
- set index [expr $index+1]
- }
- set result
- } {1 2 3}
-
- test while-4.1 {errors in while loops} {
- set err [catch {while} msg]
- list $err $msg
- } {1 {wrong # args: should be "while test command"}}
- test while-4.2 {errors in while loops} {
- set err [catch {while 1} msg]
- list $err $msg
- } {1 {wrong # args: should be "while test command"}}
- test while-4.3 {errors in while loops} {
- set err [catch {while 1 2 3} msg]
- list $err $msg
- } {1 {wrong # args: should be "while test command"}}
- test while-4.4 {errors in while loops} {
- set err [catch {while {"a"+"b"} {error "loop aborted"}} msg]
- list $err $msg
- } {1 {can't use non-numeric string as operand of "+"}}
- test while-4.5 {errors in while loops} {
- set x 1
- set err [catch {while {$x} {set x foo}} msg]
- list $err $msg
- } {1 {expected boolean value but got "foo"}}
- test while-4.6 {errors in while loops} {
- set err [catch {while {1} {error "loop aborted"}} msg]
- list $err $msg $errorInfo
- } {1 {loop aborted} {loop aborted
- while executing
- "error "loop aborted""
- ("while" body line 1)
- invoked from within
- "while {1} {error "loop aborted"}"}}
-
- test while-5.1 {while return result} {
- while {0} {set a 400}
- } {}
- test while-5.2 {while return result} {
- set x 1
- while {$x} {set x 0}
- } {}
-