public void DeleteEquationRelationship_DeletesFromUnderlyingGraph()
{
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);
_pointGraph.DeleteEquationRelationship(fromPoint, toPoint, equation);
A.CallTo(() => _underlyingDirectedGraph.RemoveDirectedEdge(fromPoint, toPoint, equation)).MustHaveHappened();
}
public void DeleteEquationRelationship(IPoint from, IPoint to, PointEquation equation)
{
_graph.RemoveDirectedEdge(from, to, equation);
}