tests/org.eclipse.epsilon.concordance.test.performance/src/org/eclipse/concordance/test/performance/GraphUpdater.eol

for (i in Sequence{1..20}) {
	var node = randomNode();
	while (node.outgoing.first.isDefined()) {
		delete node.outgoing.first;
	}
	delete node;
}

operation randomNode() : Node {
	return Graph.all.first.nodes.random();
}