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

# Syntax: graph arc exists ARC

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

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

test graph-${impl}-${setimpl}-arc-exists-1.1 {arc exists, wrong#args, too many} {
    SETUP
    catch {mygraph arc exists 0 1} msg
    mygraph destroy
    set msg
} [tmTooMany {arc exists} arc]

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

test graph-${impl}-${setimpl}-arc-exists-2.0 {arc exists} {
    SETUP
    set     res {}
    lappend res [mygraph arc exists arc1]

    mygraph node insert node1 node2
    mygraph arc  insert node1 node2 arc1

    lappend res [mygraph arc exists arc1]

    mygraph arc  delete arc1

    lappend res [mygraph arc exists arc1]

    mygraph destroy
    set res
} {0 1 0}

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