public function testDirected()
{
$n = 8;
$loader = new CompleteGraph($n);
$loader->setEnableDirectedEdges(true);
$graph = $loader->createGraph();
$this->assertEquals($n, count($graph->getVertices()));
$this->assertEquals($n * ($n - 1), count($graph->getEdges()));
// n*(n-1) for directed graphs
$alg = new Directed($graph);
$this->assertTrue($alg->hasDirected());
$alg = new Complete($graph);
$this->assertTrue($alg->isComplete());
}
public function testAdditionalEdgesToNotAffectCompleteness()
{
// 1 -> 2
// 1 -- 2
// 2 -> 1
// 1 -> 1
$graph = new Graph();
$graph->createVertex(1)->createEdgeTo($graph->createVertex(2));
$graph->getVertex(1)->createEdge($graph->getVertex(2));
$graph->getVertex(2)->createEdgeTo($graph->getVertex(1));
$graph->getVertex(1)->createEdgeTo($graph->getVertex(1));
$alg = new AlgorithmComplete($graph);
$this->assertTrue($alg->isComplete());
}