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# Commands covered: incr
#
# This file contains the original set of tests for Tcl's incr command.
# Since the incr command is now compiled, a new set of tests covering
# the new implementation is in the file "incr.test". 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) 1994-1996 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.
if {[lsearch [namespace children] ::tcltest] == -1} {
package require tcltest 2
namespace import -force ::tcltest::*
}
catch {unset x}
test incr-old-1.1 {basic incr operation} {
set x 23
list [incr x] $x
} {24 24}
test incr-old-1.2 {basic incr operation} {
set x 106
list [incr x -5] $x
} {101 101}
test incr-old-1.3 {basic incr operation} {
set x " -106"
list [incr x 1] $x
} {-105 -105}
test incr-old-1.4 {basic incr operation} {
set x " +106"
list [incr x 1] $x
} {107 107}
test incr-old-2.1 {incr errors} {
list [catch incr msg] $msg
} {1 {wrong # args: should be "incr varName ?increment?"}}
test incr-old-2.2 {incr errors} {
list [catch {incr a b c} msg] $msg
} {1 {wrong # args: should be "incr varName ?increment?"}}
test incr-old-2.3 {incr errors} {
catch {unset x}
incr x
} 1
test incr-old-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"
while executing
"incr x"}}
test incr-old-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-old-2.6 {incr errors} -body {
proc readonly args {error "variable is read-only"}
set x 123
trace var x w readonly
list [catch {incr x 1} msg] $msg $::errorInfo
} -match glob -result {1 {can't set "x": variable is read-only} {*variable is read-only
while executing
*
"incr x 1"}}
catch {unset x}
test incr-old-2.7 {incr errors} {
set x -
list [catch {incr x 1} msg] $msg
} {1 {expected integer but got "-"}}
test incr-old-2.8 {incr errors} {
set x { - }
list [catch {incr x 1} msg] $msg
} {1 {expected integer but got " - "}}
test incr-old-2.9 {incr errors} {
set x +
list [catch {incr x 1} msg] $msg
} {1 {expected integer but got "+"}}
test incr-old-2.10 {incr errors} {
set x {20 x}
list [catch {incr x 1} msg] $msg
} {1 {expected integer but got "20 x"}}
# cleanup
::tcltest::cleanupTests
return
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