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[/] [or1k/] [trunk/] [insight/] [tcl/] [tests/] [while.test] - Rev 1774

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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.
#
# 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 1.1.1.1 2002-01-16 10:25:36 markom Exp $

if {[string compare test [info procs test]] == 1} then {source defs}

# 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 {$i<}} msg
    set errorInfo
} {syntax error in expression "$i<"
    ("while" test expression)
    while compiling
"while {$i<}"}
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", "break", "continue" and 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-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-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

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