public function testReversed()
{
$card = 10;
for ($k = 0; $k < $card; $k++) {
$this->graph->addVertex(new Vertex($k));
}
$vertex = $this->graph->getVertexSet();
foreach ($vertex as $idx => $v) {
// the first vertex is isolated
for ($k = 0; $k < $idx; $k++) {
$this->graph->addEdge($v, $vertex[$k]);
}
}
$reversed = $this->graph->getReversed();
$this->assertCount($card, $reversed->getVertexSet());
$this->assertCount($card * ($card - 1) / 2, $reversed->getEdgeSet());
$newGraph = new ReversedDigraph($reversed);
$origin = $newGraph->getReversed();
$this->assertEquals($this->graph->getVertexSet(), $origin->getVertexSet());
$this->assertEquals($this->graph->getEdgeSet(), $origin->getEdgeSet());
}
/**
* Add used centrality information on each vertex
* (edge effect on this digraph)
*/
public function decorate()
{
$reversed = new ReversedDigraph($this->graph);
$this->addCentralityRank($reversed->getReversed(), 'centrality');
}
