archie/tcl7.3/tests/incr.test

# Commands covered:  lreplace
#
# 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.
#
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# 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
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# $Header: /user6/ouster/tcl/tests/RCS/incr.test,v 1.5 93/07/12 11:34:43 ouster Exp $ (Berkeley)

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

catch {unset x}

test incr-1.1 {basic incr operation} {
    set x 23
    list [incr x] $x
} {24 24}
test incr-1.2 {basic incr operation} {
    set x 106
    list [incr x -5] $x
} {101 101}
test incr-1.3 {basic incr operation} {
    set x "  -106"
    list [incr x 1] $x
} {-105 -105}
test incr-1.3 {basic incr operation} {
    set x "  +106"
    list [incr x 1] $x
} {107 107}

test incr-2.1 {incr errors} {
    list [catch incr msg] $msg
} {1 {wrong # args: should be "incr varName ?increment?"}}
test incr-2.2 {incr errors} {
    list [catch {incr a b c} msg] $msg
} {1 {wrong # args: should be "incr varName ?increment?"}}
test incr-2.3 {incr errors} {
    catch {unset x}
    list [catch {incr x} msg] $msg $errorInfo
} {1 {can't read "x": no such variable} {can't read "x": no such variable
    while executing
"incr x"}}
test incr-2.4 {incr errors} {
    set x abc
    list [catch {incr x} msg] $msg $errorInfo
} {1 {expected integer but got "abc"} {expected integer but got "abc"
    (reading value of variable to increment)
    invoked from within
"incr x"}}
test incr-2.5 {incr errors} {
    set x 123
    list [catch {incr x 1a} msg] $msg $errorInfo
} {1 {expected integer but got "1a"} {expected integer but got "1a"
    (reading increment)
    invoked from within
"incr x 1a"}}
test incr-2.6 {incr errors} {
    proc readonly args {error "variable is read-only"}
    set x 123
    trace var x w readonly
    list [catch {incr x 1} msg] $msg $errorInfo
} {1 {can't set "x": variable is read-only} {can't set "x": variable is read-only
    while executing
"incr x 1"}}

catch {unset x}
concat {}