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# Commands covered: error, catch
#
# 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.
# 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.
#
# RCS: @(#) $Id: error.test,v 1.4 1999/05/04 01:33:12 stanton Exp $
if {[lsearch [namespace children] ::tcltest] == -1} {
source [file join [pwd] [file dirname [info script]] defs.tcl]
}
proc foo {} {
global errorInfo
set a [catch {format [error glorp2]} b]
error {Human-generated}
}
proc foo2 {} {
global errorInfo
set a [catch {format [error glorp2]} b]
error {Human-generated} $errorInfo
}
# Catch errors occurring in commands and errors from "error" command
test error-1.1 {simple errors from commands} {
catch {format [string compare]} b
} 1
test error-1.2 {simple errors from commands} {
catch {format [string compare]} b
set b
} {wrong # args: should be "string compare string1 string2 ?length?"}
test error-1.3 {simple errors from commands} {
catch {format [string compare]} b
set errorInfo
} {wrong # args: should be "string compare string1 string2 ?length?"
while executing
"string compare"}
test error-1.4 {simple errors from commands} {
catch {error glorp} b
} 1
test error-1.5 {simple errors from commands} {
catch {error glorp} b
set b
} glorp
test error-1.6 {simple errors from commands} {
catch {catch a b c} b
} 1
test error-1.7 {simple errors from commands} {
catch {catch a b c} b
set b
} {wrong # args: should be "catch command ?varName?"}
test error-1.8 {simple errors from commands} {nonPortable} {
# This test is non-portable: it generates a memory fault on
# machines like DEC Alphas (infinite recursion overflows
# stack?)
proc p {} {
uplevel 1 catch p error
}
p
} 0
# Check errors nested in procedures. Also check the optional argument
# to "error" to generate a new error trace.
test error-2.1 {errors in nested procedures} {
catch foo b
} 1
test error-2.2 {errors in nested procedures} {
catch foo b
set b
} {Human-generated}
test error-2.3 {errors in nested procedures} {
catch foo b
set errorInfo
} {Human-generated
while executing
"error {Human-generated}"
(procedure "foo" line 4)
invoked from within
"foo"}
test error-2.4 {errors in nested procedures} {
catch foo2 b
} 1
test error-2.5 {errors in nested procedures} {
catch foo2 b
set b
} {Human-generated}
test error-2.6 {errors in nested procedures} {
catch foo2 b
set errorInfo
} {glorp2
while executing
"error glorp2"
(procedure "foo2" line 3)
invoked from within
"foo2"}
# Error conditions related to "catch".
test error-3.1 {errors in catch command} {
list [catch {catch} msg] $msg
} {1 {wrong # args: should be "catch command ?varName?"}}
test error-3.2 {errors in catch command} {
list [catch {catch a b c} msg] $msg
} {1 {wrong # args: should be "catch command ?varName?"}}
test error-3.3 {errors in catch command} {
catch {unset a}
set a(0) 22
list [catch {catch {format 44} a} msg] $msg
} {1 {couldn't save command result in variable}}
catch {unset a}
# More tests related to errorInfo and errorCode
test error-4.1 {errorInfo and errorCode variables} {
list [catch {error msg1 msg2 msg3} msg] $msg $errorInfo $errorCode
} {1 msg1 msg2 msg3}
test error-4.2 {errorInfo and errorCode variables} {
list [catch {error msg1 {} msg3} msg] $msg $errorInfo $errorCode
} {1 msg1 {msg1
while executing
"error msg1 {} msg3"} msg3}
test error-4.3 {errorInfo and errorCode variables} {
list [catch {error msg1 {}} msg] $msg $errorInfo $errorCode
} {1 msg1 {msg1
while executing
"error msg1 {}"} NONE}
test error-4.4 {errorInfo and errorCode variables} {
set errorCode bogus
list [catch {error msg1} msg] $msg $errorInfo $errorCode
} {1 msg1 {msg1
while executing
"error msg1"} NONE}
test error-4.5 {errorInfo and errorCode variables} {
set errorCode bogus
list [catch {error msg1 msg2 {}} msg] $msg $errorInfo $errorCode
} {1 msg1 msg2 {}}
# Errors in error command itself
test error-5.1 {errors in error command} {
list [catch {error} msg] $msg
} {1 {wrong # args: should be "error message ?errorInfo? ?errorCode?"}}
test error-5.2 {errors in error command} {
list [catch {error a b c d} msg] $msg
} {1 {wrong # args: should be "error message ?errorInfo? ?errorCode?"}}
# Make sure that catch resets error information
test error-6.1 {catch must reset error state} {
catch {error outer [catch {error inner inner.errorInfo inner.errorCode}]}
list $errorCode $errorInfo
} {NONE 1}
# cleanup
catch {rename p ""}
::tcltest::cleanupTests
return
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