private static void TestCellOps(S2LatLngRect r, S2Cell cell, int level)
{
// Test the relationship between the given rectangle and cell:
// 0 == no intersection, 1 == MayIntersect, 2 == Intersects,
// 3 == Vertex Containment, 4 == Contains
bool vertex_contained = false;
for (int i = 0; i < 4; ++i)
{
if (r.Contains(cell.VertexRaw(i)) ||
(!r.IsEmpty() && cell.Contains(r.Vertex(i).ToPoint())))
{
vertex_contained = true;
}
}
Assert.Equal(r.MayIntersect(cell), level >= 1);
Assert.Equal(r.Intersects(cell), level >= 2);
Assert.Equal(vertex_contained, level >= 3);
Assert.Equal(r.Contains(cell), level >= 4);
}
