# -*- tcl -*-
# Graph tests - arc target
# Copyright (c) 2006 Andreas Kupries <andreas_kupries@users.sourceforge.net>
# All rights reserved.
# RCS: @(#) $Id: target.test,v 1.2 2007/04/12 03:01:55 andreas_kupries Exp $

# Syntax: graph arc target ARC

# -------------------------------------------------------------------------
# Wrong # args: Missing, Too many

test graph-${impl}-${setimpl}-arc-target-1.0 {arc target, wrong#arcs, missing} {
    SETUP
    catch {mygraph arc target} msg
    mygraph destroy
    set msg
} [tmWrong {arc target} arc 0]

test graph-${impl}-${setimpl}-arc-target-1.1 {arc target, wrong#arcs, too many} {
    SETUP
    catch {mygraph arc target a b} msg
    mygraph destroy
    set msg
} [tmTooMany {arc target} arc]

# -------------------------------------------------------------------------
# Logical arguments checks and failures

test graph-${impl}-${setimpl}-arc-target-2.0 {arc target, missing arc} {
    SETUP
    catch {mygraph arc target arc0} msg
    mygraph destroy
    set msg
} [MissingArc $MY arc0]

# -------------------------------------------------------------------------
# Ok arguments.

test graph-${impl}-${setimpl}-arc-target-3.0 {arc target} {
    SETUP
    mygraph node insert node0 node1
    mygraph arc  insert node0 node1 arc0
    set result [mygraph arc target arc0]
    mygraph destroy
    set result
} node1

# ---------------------------------------------------