public void Test_S2LaxLoopShape_EmptyLoop()
{
// Test S2Loop constructor.
var shape = new S2LaxLoopShape(S2Loop.kEmpty);
Assert.Equal(0, shape.NumVertices);
Assert.Equal(0, shape.NumEdges());
Assert.Equal(0, shape.NumChains());
Assert.Equal(2, shape.Dimension());
Assert.True(shape.IsEmpty());
Assert.False(shape.IsFull());
Assert.False(shape.GetReferencePoint().Contained);
}
public void Test_S2LaxLoopShape_NonEmptyLoop()
{
// Test S2Point[] constructor.
var vertices = ParsePointsOrDie("0:0, 0:1, 1:1, 1:0");
var shape = new S2LaxLoopShape(vertices.ToArray());
Assert.Equal(vertices.Count, shape.NumVertices);
Assert.Equal(vertices.Count, shape.NumEdges());
Assert.Equal(1, shape.NumChains());
Assert.Equal(0, shape.GetChain(0).Start);
Assert.Equal(vertices.Count, shape.GetChain(0).Length);
for (int i = 0; i < vertices.Count; ++i)
{
Assert.Equal(vertices[i], shape.Vertex(i));
var edge = shape.GetEdge(i);
Assert.Equal(vertices[i], edge.V0);
Assert.Equal(vertices[(i + 1) % vertices.Count], edge.V1);
}
Assert.Equal(2, shape.Dimension());
Assert.False(shape.IsEmpty());
Assert.False(shape.IsFull());
Assert.False(shape.GetReferencePoint().Contained);
}