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# -*- tcl -*-
# Graph ops tests - Minimum spanning tree/forest per Kruskal
# Copyright (c) 2008 Andreas Kupries <andreas_kupries@users.sourceforge.net>
# All rights reserved.
# RCS: @(#) $Id: kruskal.test,v 1.3 2009/09/15 19:24:12 andreas_kupries Exp $
# Syntax: struct::graph::op::kruskal G
# -------------------------------------------------------------------------
# Wrong # args: Missing, Too many
test graphop-t${treeimpl}-g${impl}-s${setimpl}-st${stkimpl}-q${queimpl}-kruskal-1.0 {kruskal, wrong args, missing} {
catch {struct::graph::op::kruskal} msg
set msg
} [tcltest::wrongNumArgs struct::graph::op::kruskal {g} 0]
test graphop-t${treeimpl}-g${impl}-s${setimpl}-st${stkimpl}-q${queimpl}-kruskal-1.1 {kruskal, wrong args, too many} {
catch {struct::graph::op::kruskal g x} msg
set msg
} [tcltest::tooManyArgs struct::graph::op::kruskal {g}]
# -------------------------------------------------------------------------
# Logical arguments checks and failures
test graphop-t${treeimpl}-g${impl}-s${setimpl}-st${stkimpl}-q${queimpl}-kruskal-2.0 {kruskal, arcs without weights} {
SETUP
mygraph node insert 0 1
mygraph arc insert 0 1 a
catch {struct::graph::op::kruskal mygraph} msg
set msg
} {Operation invalid for graph with unweighted arcs.}
# -------------------------------------------------------------------------
# Ok arguments.
test graphop-t${treeimpl}-g${impl}-s${setimpl}-st${stkimpl}-q${queimpl}-kruskal-3.0 {kruskal, empty graph} {
SETUP
set result [struct::graph::op::kruskal mygraph]
mygraph destroy
set result
} {}
test graphop-t${treeimpl}-g${impl}-s${setimpl}-st${stkimpl}-q${queimpl}-kruskal-3.1 {kruskal, nodes, no arcs} {
SETUP
mygraph node insert 0 1 2 3 4 5
set result [struct::graph::op::kruskal mygraph]
mygraph destroy
set result
} {}
test graphop-t${treeimpl}-g${impl}-s${setimpl}-st${stkimpl}-q${queimpl}-kruskal-3.2 {kruskal, nodes, arcs} {
SETUP_A
set result [lsort -dict [struct::graph::op::kruskal mygraph]]
mygraph destroy
set result
} {'arc0_1' 'arc0_3' 'arc3_2' 'arc3_4' 'arc3_6' 'arc6_5'}
# ---------------------------------------------------
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