while.test
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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) 1996 Sun Microsystems, Inc.
- # Copyright (c) 1998-1999 by Scriptics Corporation.
- #
- # See the file "license.terms" for information on usage and redistribution
- # of this file, and for a DISCLAIMER OF ALL WARRANTIES.
- #
- # RCS: @(#) $Id: while.test,v 1.8 2001/12/04 15:36:29 dkf Exp $
- if {[lsearch [namespace children] ::tcltest] == -1} {
- package require tcltest
- namespace import -force ::tcltest::*
- }
- # Basic "while" operation.
- catch {unset i}
- catch {unset a}
- test while-1.1 {TclCompileWhileCmd: missing test expression} {
- catch {while } msg
- set msg
- } {wrong # args: should be "while test command"}
- test while-1.2 {TclCompileWhileCmd: error in test expression} {
- set i 0
- catch {while {$i<} break} msg
- set errorInfo
- } {syntax error in expression "$i<": premature end of expression
- ("while" test expression)
- while compiling
- "while {$i<} break"}
- test while-1.3 {TclCompileWhileCmd: error in test expression} {
- set err [catch {while {"a"+"b"} {error "loop aborted"}} msg]
- list $err $msg
- } {1 {can't use non-numeric string as operand of "+"}}
- test while-1.4 {TclCompileWhileCmd: multiline test expr} {
- set value 1
- while {($tcl_platform(platform) != "foobar1") &&
- ($tcl_platform(platform) != "foobar2")} {
- incr value
- break
- }
- set value
- } {2}
- test while-1.5 {TclCompileWhileCmd: non-numeric boolean test expr} {
- set value 1
- while {"true"} {
- incr value;
- if {$value > 5} {
- break;
- }
- }
- set value
- } 6
- test while-1.6 {TclCompileWhileCmd: test expr is enclosed in quotes} {
- set i 0
- while "$i > 5" {}
- } {}
- test while-1.7 {TclCompileWhileCmd: missing command body} {
- set i 0
- catch {while {$i < 5} } msg
- set msg
- } {wrong # args: should be "while test command"}
- test while-1.8 {TclCompileWhileCmd: error compiling command body} {
- set i 0
- catch {while {$i < 5} {set}} msg
- set errorInfo
- } {wrong # args: should be "set varName ?newValue?"
- while compiling
- "set"
- ("while" body line 1)
- while compiling
- "while {$i < 5} {set}"}
- test while-1.9 {TclCompileWhileCmd: simple command body} {
- set a {}
- set i 1
- while {$i<6} {
- if $i==4 break
- set a [concat $a $i]
- incr i
- }
- set a
- } {1 2 3}
- test while-1.10 {TclCompileWhileCmd: command body in quotes} {
- set a {}
- set i 1
- while {$i<6} "append a x; incr i"
- set a
- } {xxxxx}
- test while-1.11 {TclCompileWhileCmd: computed command body} {
- catch {unset x1}
- catch {unset bb}
- catch {unset x2}
- set x1 {append a x1; }
- set bb {break}
- set x2 {; append a x2; incr i}
- set a {}
- set i 1
- while {$i<6} $x1$bb$x2
- set a
- } {x1}
- test while-1.12 {TclCompileWhileCmd: long command body} {
- set a {}
- set i 1
- while {$i<6} {
- if $i==4 break
- if $i>5 continue
- if {$i>6 && $tcl_platform(machine)=="xxx"} {
- catch {set a $a} msg
- catch {incr i 5} msg
- catch {incr i -5} msg
- }
- if {$i>6 && $tcl_platform(machine)=="xxx"} {
- catch {set a $a} msg
- catch {incr i 5} msg
- catch {incr i -5} msg
- }
- if {$i>6 && $tcl_platform(machine)=="xxx"} {
- catch {set a $a} msg
- catch {incr i 5} msg
- catch {incr i -5} msg
- }
- if {$i>6 && $tcl_platform(machine)=="xxx"} {
- catch {set a $a} msg
- catch {incr i 5} msg
- catch {incr i -5} msg
- }
- if {$i>6 && $tcl_platform(machine)=="xxx"} {
- catch {set a $a} msg
- catch {incr i 5} msg
- catch {incr i -5} msg
- }
- set a [concat $a $i]
- incr i
- }
- set a
- } {1 2 3}
- test while-1.13 {TclCompileWhileCmd: while command result} {
- set i 0
- set a [while {$i < 5} {incr i}]
- set a
- } {}
- test while-1.14 {TclCompileWhileCmd: while command result} {
- set i 0
- set a [while {$i < 5} {if $i==3 break; incr i}]
- set a
- } {}
- # Check "while" and "continue".
- test while-2.1 {continue tests} {
- set a {}
- set i 1
- while {$i <= 4} {
- incr i
- if {$i == 3} continue
- set a [concat $a $i]
- }
- set a
- } {2 4 5}
- test while-2.2 {continue tests} {
- set a {}
- set i 1
- while {$i <= 4} {
- incr i
- if {$i != 2} continue
- set a [concat $a $i]
- }
- set a
- } {2}
- test while-2.3 {continue tests, nested loops} {
- set msg {}
- set i 1
- while {$i <= 4} {
- incr i
- set a 1
- while {$a <= 2} {
- incr a
- if {$i>=3 && $a>=3} continue
- set msg [concat $msg "$i.$a"]
- }
- }
- set msg
- } {2.2 2.3 3.2 4.2 5.2}
- test while-2.4 {continue tests, long command body} {
- set a {}
- set i 1
- while {$i<6} {
- if $i==2 {incr i; continue}
- if $i==4 break
- if $i>5 continue
- if {$i>6 && $tcl_platform(machine)=="xxx"} {
- catch {set a $a} msg
- catch {incr i 5} msg
- catch {incr i -5} msg
- }
- if {$i>6 && $tcl_platform(machine)=="xxx"} {
- catch {set a $a} msg
- catch {incr i 5} msg
- catch {incr i -5} msg
- }
- if {$i>6 && $tcl_platform(machine)=="xxx"} {
- catch {set a $a} msg
- catch {incr i 5} msg
- catch {incr i -5} msg
- }
- if {$i>6 && $tcl_platform(machine)=="xxx"} {
- catch {set a $a} msg
- catch {incr i 5} msg
- catch {incr i -5} msg
- }
- if {$i>6 && $tcl_platform(machine)=="xxx"} {
- catch {set a $a} msg
- catch {incr i 5} msg
- catch {incr i -5} msg
- }
- set a [concat $a $i]
- incr i
- }
- set a
- } {1 3}
- # Check "while" and "break".
- test while-3.1 {break tests} {
- set a {}
- set i 1
- while {$i <= 4} {
- if {$i == 3} break
- set a [concat $a $i]
- incr i
- }
- set a
- } {1 2}
- test while-3.2 {break tests, nested loops} {
- set msg {}
- set i 1
- while {$i <= 4} {
- set a 1
- while {$a <= 2} {
- if {$i>=2 && $a>=2} break
- set msg [concat $msg "$i.$a"]
- incr a
- }
- incr i
- }
- set msg
- } {1.1 1.2 2.1 3.1 4.1}
- test while-3.3 {break tests, long command body} {
- set a {}
- set i 1
- while {$i<6} {
- if $i==2 {incr i; continue}
- if $i==5 break
- if $i>5 continue
- if {$i>6 && $tcl_platform(machine)=="xxx"} {
- catch {set a $a} msg
- catch {incr i 5} msg
- catch {incr i -5} msg
- }
- if {$i>6 && $tcl_platform(machine)=="xxx"} {
- catch {set a $a} msg
- catch {incr i 5} msg
- catch {incr i -5} msg
- }
- if {$i>6 && $tcl_platform(machine)=="xxx"} {
- catch {set a $a} msg
- catch {incr i 5} msg
- catch {incr i -5} msg
- }
- if $i==4 break
- if {$i>6 && $tcl_platform(machine)=="xxx"} {
- catch {set a $a} msg
- catch {incr i 5} msg
- catch {incr i -5} msg
- }
- if {$i>6 && $tcl_platform(machine)=="xxx"} {
- catch {set a $a} msg
- catch {incr i 5} msg
- catch {incr i -5} msg
- }
- set a [concat $a $i]
- incr i
- }
- set a
- } {1 3}
- # Check "while" with computed command names.
- test while-4.1 {while and computed command names} {
- set i 0
- set z while
- $z {$i < 10} {
- incr i
- }
- set i
- } 10
- test while-4.2 {while (not compiled): missing test expression} {
- set z while
- catch {$z } msg
- set msg
- } {wrong # args: should be "while test command"}
- test while-4.3 {while (not compiled): error in test expression} {
- set i 0
- set z while
- catch {$z {$i<} {set x 1}} msg
- set errorInfo
- } {syntax error in expression "$i<": premature end of expression
- while executing
- "$z {$i<} {set x 1}"}
- test while-4.4 {while (not compiled): error in test expression} {
- set z while
- set err [catch {$z {"a"+"b"} {error "loop aborted"}} msg]
- list $err $msg
- } {1 {can't use non-numeric string as operand of "+"}}
- test while-4.5 {while (not compiled): multiline test expr} {
- set value 1
- set z while
- $z {($tcl_platform(platform) != "foobar1") &&
- ($tcl_platform(platform) != "foobar2")} {
- incr value
- break
- }
- set value
- } {2}
- test while-4.6 {while (not compiled): non-numeric boolean test expr} {
- set value 1
- set z while
- $z {"true"} {
- incr value;
- if {$value > 5} {
- break;
- }
- }
- set value
- } 6
- test while-4.7 {while (not compiled): test expr is enclosed in quotes} {
- set i 0
- set z while
- $z "$i > 5" {}
- } {}
- test while-4.8 {while (not compiled): missing command body} {
- set i 0
- set z while
- catch {$z {$i < 5} } msg
- set msg
- } {wrong # args: should be "while test command"}
- test while-4.9 {while (not compiled): error compiling command body} {
- set i 0
- set z while
- catch {$z {$i < 5} {set}} msg
- set errorInfo
- } {wrong # args: should be "set varName ?newValue?"
- while compiling
- "set"
- ("while" body line 1)
- invoked from within
- "$z {$i < 5} {set}"}
- test while-4.10 {while (not compiled): simple command body} {
- set a {}
- set i 1
- set z while
- $z {$i<6} {
- if $i==4 break
- set a [concat $a $i]
- incr i
- }
- set a
- } {1 2 3}
- test while-4.11 {while (not compiled): command body in quotes} {
- set a {}
- set i 1
- set z while
- $z {$i<6} "append a x; incr i"
- set a
- } {xxxxx}
- test while-4.12 {while (not compiled): computed command body} {
- set z while
- catch {unset x1}
- catch {unset bb}
- catch {unset x2}
- set x1 {append a x1; }
- set bb {break}
- set x2 {; append a x2; incr i}
- set a {}
- set i 1
- $z {$i<6} $x1$bb$x2
- set a
- } {x1}
- test while-4.13 {while (not compiled): long command body} {
- set a {}
- set z while
- set i 1
- $z {$i<6} {
- if $i==4 break
- if $i>5 continue
- if {$i>6 && $tcl_platform(machine)=="xxx"} {
- catch {set a $a} msg
- catch {incr i 5} msg
- catch {incr i -5} msg
- }
- if {$i>6 && $tcl_platform(machine)=="xxx"} {
- catch {set a $a} msg
- catch {incr i 5} msg
- catch {incr i -5} msg
- }
- if {$i>6 && $tcl_platform(machine)=="xxx"} {
- catch {set a $a} msg
- catch {incr i 5} msg
- catch {incr i -5} msg
- }
- if {$i>6 && $tcl_platform(machine)=="xxx"} {
- catch {set a $a} msg
- catch {incr i 5} msg
- catch {incr i -5} msg
- }
- if {$i>6 && $tcl_platform(machine)=="xxx"} {
- catch {set a $a} msg
- catch {incr i 5} msg
- catch {incr i -5} msg
- }
- set a [concat $a $i]
- incr i
- }
- set a
- } {1 2 3}
- test while-4.14 {while (not compiled): while command result} {
- set i 0
- set z while
- set a [$z {$i < 5} {incr i}]
- set a
- } {}
- test while-4.15 {while (not compiled): while command result} {
- set i 0
- set z while
- set a [$z {$i < 5} {if $i==3 break; incr i}]
- set a
- } {}
- # Check "break" with computed command names.
- test while-5.1 {break and computed command names} {
- set i 0
- set z break
- while 1 {
- if {$i > 10} $z
- incr i
- }
- set i
- } 11
- test while-5.2 {break tests with computed command names} {
- set a {}
- set i 1
- set z break
- while {$i <= 4} {
- if {$i == 3} $z
- set a [concat $a $i]
- incr i
- }
- set a
- } {1 2}
- test while-5.3 {break tests, nested loops with computed command names} {
- set msg {}
- set i 1
- set z break
- while {$i <= 4} {
- set a 1
- while {$a <= 2} {
- if {$i>=2 && $a>=2} $z
- set msg [concat $msg "$i.$a"]
- incr a
- }
- incr i
- }
- set msg
- } {1.1 1.2 2.1 3.1 4.1}
- test while-5.4 {break tests, long command body with computed command names} {
- set a {}
- set i 1
- set z break
- while {$i<6} {
- if $i==2 {incr i; continue}
- if $i==5 $z
- if $i>5 continue
- if {$i>6 && $tcl_platform(machine)=="xxx"} {
- catch {set a $a} msg
- catch {incr i 5} msg
- catch {incr i -5} msg
- }
- if {$i>6 && $tcl_platform(machine)=="xxx"} {
- catch {set a $a} msg
- catch {incr i 5} msg
- catch {incr i -5} msg
- }
- if {$i>6 && $tcl_platform(machine)=="xxx"} {
- catch {set a $a} msg
- catch {incr i 5} msg
- catch {incr i -5} msg
- }
- if $i==4 $z
- if {$i>6 && $tcl_platform(machine)=="xxx"} {
- catch {set a $a} msg
- catch {incr i 5} msg
- catch {incr i -5} msg
- }
- if {$i>6 && $tcl_platform(machine)=="xxx"} {
- catch {set a $a} msg
- catch {incr i 5} msg
- catch {incr i -5} msg
- }
- set a [concat $a $i]
- incr i
- }
- set a
- } {1 3}
- # Check "continue" with computed command names.
- test while-6.1 {continue and computed command names} {
- set i 0
- set z continue
- while 1 {
- incr i
- if {$i < 10} $z
- break
- }
- set i
- } 10
- test while-6.2 {continue tests} {
- set a {}
- set i 1
- set z continue
- while {$i <= 4} {
- incr i
- if {$i == 3} $z
- set a [concat $a $i]
- }
- set a
- } {2 4 5}
- test while-6.3 {continue tests with computed command names} {
- set a {}
- set i 1
- set z continue
- while {$i <= 4} {
- incr i
- if {$i != 2} $z
- set a [concat $a $i]
- }
- set a
- } {2}
- test while-6.4 {continue tests, nested loops with computed command names} {
- set msg {}
- set i 1
- set z continue
- while {$i <= 4} {
- incr i
- set a 1
- while {$a <= 2} {
- incr a
- if {$i>=3 && $a>=3} $z
- set msg [concat $msg "$i.$a"]
- }
- }
- set msg
- } {2.2 2.3 3.2 4.2 5.2}
- test while-6.5 {continue tests, long command body with computed command names} {
- set a {}
- set i 1
- set z continue
- while {$i<6} {
- if $i==2 {incr i; continue}
- if $i==4 break
- if $i>5 $z
- if {$i>6 && $tcl_platform(machine)=="xxx"} {
- catch {set a $a} msg
- catch {incr i 5} msg
- catch {incr i -5} msg
- }
- if {$i>6 && $tcl_platform(machine)=="xxx"} {
- catch {set a $a} msg
- catch {incr i 5} msg
- catch {incr i -5} msg
- }
- if {$i>6 && $tcl_platform(machine)=="xxx"} {
- catch {set a $a} msg
- catch {incr i 5} msg
- catch {incr i -5} msg
- }
- if {$i>6 && $tcl_platform(machine)=="xxx"} {
- catch {set a $a} msg
- catch {incr i 5} msg
- catch {incr i -5} msg
- }
- if {$i>6 && $tcl_platform(machine)=="xxx"} {
- catch {set a $a} msg
- catch {incr i 5} msg
- catch {incr i -5} msg
- }
- set a [concat $a $i]
- incr i
- }
- set a
- } {1 3}
- # Test for incorrect "double evaluation" semantics
- test while-7.1 {delayed substitution of body} {
- set i 0
- while {[incr i] < 10} "
- set result $i
- "
- proc p {} {
- set i 0
- while {[incr i] < 10} "
- set result $i
- "
- set result
- }
- append result [p]
- } {00}
- # cleanup
- ::tcltest::cleanupTests
- return