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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.

#

# 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 1.1.1.1 2002-01-16 10:25:35 markom Exp $

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

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"}

test error-1.3 {simple errors from commands} {

    catch {format [string compare]} b

    set errorInfo

} {wrong # args: should be "string compare string1 string2"

    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}

catch {rename p ""}

return ""