public void AddEquationRelationship(IPoint from, IPoint to, PointEquation equation)
{
if (!(_uniqueEidConstrainer[from.Eid] is IPoint) || !(_uniqueEidConstrainer[to.Eid] is IPoint) || !(_uniqueEidConstrainer[equation.Eid] is PointEquation))
{
throw new KeyNotFoundException();
}
_graph.AddDirectedEdge(from, to, equation);
to.Update();
}
public void AddEquationRelationship_InsertsIntoUnderlyingGraph()
{
int fromEid = 0;
int toEid = 1;
int equationEid = 2;
var fromPoint = A.Fake <IPoint>();
A.CallTo(() => fromPoint.Eid).Returns(fromEid);
var toPoint = A.Fake <IPoint>();
A.CallTo(() => fromPoint.Eid).Returns(toEid);
var equation = new PointEquation(equationEid, null);
_pointGraph.AddPoint(fromPoint);
_pointGraph.AddPoint(toPoint);
_pointGraph.AddEquation(equation);
_pointGraph.AddEquationRelationship(fromPoint, toPoint, equation);
A.CallTo(() => _underlyingDirectedGraph.AddDirectedEdge(fromPoint, toPoint, equation)).MustHaveHappened();
}