# -*- tcl -*-
# Graph tests - node deletion
# Copyright (c) 2006 Andreas Kupries <andreas_kupries@users.sourceforge.net>
# All rights reserved.
# RCS: @(#) $Id: delete.test,v 1.2 2007/04/12 03:01:56 andreas_kupries Exp $

# Syntax: graph node delete NODE NODE...

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

test graph-${impl}-${setimpl}-node-delete-1.0 {node delete, wrong#args, missing} {
    SETUP
    catch {mygraph node delete} msg
    mygraph destroy
    set msg
} [tmE  {wrong # args: should be "::struct::graph::__node_delete name node node..."} \
	{wrong # args: should be "mygraph node delete node node..."}]

# Cannot use tmWrong, will be incorrect for the Tcl implementation
# run by a pre-8.4 core.
# [tmWrong {node delete} {node node...} 0]

# Impossible to have too many arguments
# Any number of nodes is acceptable.

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

test graph-${impl}-${setimpl}-node-delete-2.0 {node delete, missing node} {
    SETUP
    catch {mygraph node delete node0} msg
    mygraph destroy
    set msg
} [MissingNode $MY node0]

# -------------------------------------------------------------------------
# Ok arguments, single, multiple deletion.

test graph-${impl}-${setimpl}-node-delete-3.0 {node delete, single} {
    SETUP
    mygraph node insert node0
    set     res {}

    lappend res [mygraph node exists node0]
    lappend res [mygraph node delete node0]
    lappend res [mygraph node exists node0]

    mygraph destroy
    set res
} {1 {} 0}

test graph-${impl}-${setimpl}-node-delete-3.1 {node delete, multiple at once} {
    SETUP
    mygraph node insert node0 node1 node2 node3
    set     res {}

    lappend res [mygraph node exists node0]
    lappend res [mygraph node exists node1]
    lappend res [mygraph node exists node2]
    lappend res [mygraph node exists node3]
    lappend res [mygraph node delete node0 node1 node2 node3]
    lappend res [mygraph node exists node0]
    lappend res [mygraph node exists node1]
    lappend res [mygraph node exists node2]
    lappend res [mygraph node exists node3]

    mygraph destroy
    set res
} {1 1 1 1 {} 0 0 0 0}

test graph-${impl}-${setimpl}-node-delete-3.2 {node delete, deleting adjacent arcs} {
    SETUP
    mygraph node insert node0 node1 node2
    mygraph arc  insert node0 node1 arc0
    mygraph arc  insert node1 node2 arc1

    mygraph node delete node1

    set     result {}
    lappend result [mygraph arc exists arc0]
    lappend result [mygraph arc exists arc1]

    mygraph destroy
    set result
} {0 0}

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