public function testFactory()
{
// 1 -> 1
$graph = new Graph();
$v1 = $graph->createVertex(1);
$e1 = $v1->createEdgeTo($v1);
$edgesFromArray = $this->createEdges(array($e1));
$this->assertInstanceOf('Fhaculty\\Graph\\Set\\Edges', $edgesFromArray);
$this->assertSame($e1, $edgesFromArray->getEdgeFirst());
$edgesFromEdges = Edges::factory($edgesFromArray);
$this->assertSame($edgesFromArray, $edgesFromEdges);
}
private function getEdgeCloneInternal(Edge $edge, Vertex $startVertex, Vertex $targetVertex)
{
// Get original vertices from resultgraph
$residualGraphEdgeStartVertex = $this->getVertex($startVertex->getId());
$residualGraphEdgeTargetVertex = $this->getVertex($targetVertex->getId());
// Now get the edge
$residualEdgeArray = $residualGraphEdgeStartVertex->getEdgesTo($residualGraphEdgeTargetVertex);
$residualEdgeArray = Edges::factory($residualEdgeArray)->getVector();
// Check for parallel edges
if (!$residualEdgeArray) {
throw new UnderflowException('No original edges for given cloned edge found');
} elseif (count($residualEdgeArray) !== 1) {
throw new OverflowException('More than one cloned edge? Parallel edges (multigraph) not supported');
}
return $residualEdgeArray[0];
}
protected function __construct($vertices, $edges)
{
$this->vertices = Vertices::factory($vertices);
$this->edges = Edges::factory($edges);
}
