private void ExpectOppositeEdgesAreEqualAsUndirected(VerticalPrismalSurface surface, IPolysurfaceVertex v1, IPolysurfaceVertex v2)
{
var edge1 = surface.GetEdge(v1, v2);
var edge2 = surface.GetEdge(v2, v1);
Expect(edge1, Is.EqualTo(edge2).Using(surface.UndirectedEdgeComparer));
}
private void ExpectOppositeEdgesAreDifferent(VerticalPrismalSurface surface, IPolysurfaceVertex v1, IPolysurfaceVertex v2)
{
var edge1 = surface.GetEdge(v1, v2);
var edge2 = surface.GetEdge(v2, v1);
Expect(edge1, Is.Not.EqualTo(edge2));
}
private void ExpectGetEdgeReturnsCorrectEdge(VerticalPrismalSurface surface, IPolysurfaceVertex v1, IPolysurfaceVertex v2)
{
var edge1 = surface.GetEdge(v1, v2);
Expect(edge1, Is.Not.Null);
Expect(edge1.Source, Is.EqualTo(v1));
Expect(edge1.Target, Is.EqualTo(v2));
var edge2 = surface.GetEdge(v2, v1);
Expect(edge2, Is.Not.Null);
Expect(edge2.Source, Is.EqualTo(v2));
Expect(edge2.Target, Is.EqualTo(v1));
}
private void ExpectTwoConstructionsOfEdgeCoincide(VerticalPrismalSurface surface, IPolysurfaceVertex v1, IPolysurfaceVertex v2)
{
var edge1 = surface.GetEdge(v1, v2);
var edge2 = v1.Edges.Where(e => e.Target.Equals(v2)).Single();
Expect(edge1, Is.EqualTo(edge2));
Expect(edge1, Is.EqualTo(edge2).Using(surface.UndirectedEdgeComparer));
}