public void ReverseEdges_Throws()
{
// ReSharper disable once ReturnValueOfPureMethodIsNotUsed
// ReSharper disable once AssignNullToNotNullAttribute
Assert.Throws <ArgumentNullException>(
() => EdgeExtensions.ReverseEdges <int, Edge <int> >(null));
}
public void ReverseEdges()
{
CollectionAssert.IsEmpty(EdgeExtensions.ReverseEdges <int, Edge <int> >(Enumerable.Empty <Edge <int> >()));
var edge1 = new Edge <int>(1, 2);
CollectionAssert.AreEqual(
new[] { new SReversedEdge <int, Edge <int> >(edge1) },
EdgeExtensions.ReverseEdges <int, Edge <int> >(new[] { edge1 }));
var edge2 = new Edge <int>(2, 2);
var edge3 = new Edge <int>(3, 1);
CollectionAssert.AreEqual(
new[]
{
new SReversedEdge <int, Edge <int> >(edge1),
new SReversedEdge <int, Edge <int> >(edge2),
new SReversedEdge <int, Edge <int> >(edge3)
},
EdgeExtensions.ReverseEdges <int, Edge <int> >(new[] { edge1, edge2, edge3 }));
}