public void TestVisiting()
{
VisitedAtoms visited = new VisitedAtoms();
IAtom atom = new Atom("C");
Assert.IsFalse(visited.IsVisited(atom));
visited.Visited(atom);
Assert.IsTrue(visited.IsVisited(atom));
}
public void TestAddedVisitedAtoms()
{
VisitedAtoms visited = new VisitedAtoms();
IAtom atom = new Atom("C");
VisitedAtoms visitedToAdd = new VisitedAtoms();
visited.Visited(atom);
Assert.IsFalse(visitedToAdd.IsVisited(atom));
visitedToAdd.Visited(visited);
Assert.IsTrue(visitedToAdd.IsVisited(atom));
}