/**
* Will merge all edges that are parallel to to given edge
*
* @param Edge $newEdge
*/
private function mergeParallelEdges(Edge $newEdge)
{
$parallelEdges = $newEdge->getEdgesParallel();
if ($parallelEdges) {
$mergedCapacity = 0;
foreach ($parallelEdges as $parallelEdge) {
$mergedCapacity += $parallelEdge->getCapacity();
}
$newEdge->setCapacity($newEdge->getCapacity() + $mergedCapacity);
foreach ($parallelEdges as $parallelEdge) {
$parallelEdge->destroy();
}
}
}
/**
* @expectedException InvalidArgumentException
*/
public function testCapacityMustBePositive()
{
$this->edge->setCapacity(-10);
}
