# -*- tcl -*-
# Graph tests - arc nodes
# Copyright (c) 2009 Andreas Kupries <andreas_kupries@users.sourceforge.net>
# All rights reserved.
# RCS: @(#) $Id: nodes.test,v 1.1 2009/09/24 16:23:47 andreas_kupries Exp $

# Syntax: graph arc nodes ARC

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

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

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

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

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

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

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

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