public void No_nodes_are_requested_or_to_cache_when_none_are_visible()
{
var cache = GetCache();
var result = LODCache.getNodesToDrawAndCache(cache, new ChunkedLodTreeFactory.ChunkedLodTreeNode[] { });
Assert.IsEmpty(result.Item1);
Assert.IsEmpty(result.Item2);
}
public void No_nodes_are_requested_if_the_root_is_not_cached()
{
var root = new ChunkedLodTreeFactory.ChunkedLodTreeNode(new Bounds2D(), null, 0);
var cache = GetCache();
var result = LODCache.getNodesToDrawAndCache(cache, new ChunkedLodTreeFactory.ChunkedLodTreeNode[] { root });
Assert.IsEmpty(result.Item1);
CollectionAssert.AreEqual(new[] { root }, result.Item2);
}
public void Requests_nodes_parent_if_originally_requested_node_is_not_cached_but_when_parent_is()
{
var parent = new ChunkedLodTreeFactory.ChunkedLodTreeNode(new Bounds2D(), null, 0);
var child = new ChunkedLodTreeFactory.ChunkedLodTreeNode(new Bounds2D(), parent, 0);
CacheNode(parent);
var cache = GetCache();
var result = LODCache.getNodesToDrawAndCache(cache, new[] { child });
CollectionAssert.AreEqual(new[] { parent }, result.Item1);
CollectionAssert.AreEqual(new[] { child }, result.Item2);
}
public void Does_not_request_child_unless_all_children_are_cached()
{
var parent = new ChunkedLodTreeFactory.ChunkedLodTreeNode(new Bounds2D(), null, 0);
var firstChild = new ChunkedLodTreeFactory.ChunkedLodTreeNode(new Bounds2D(), parent, 0);
var secondChild = new ChunkedLodTreeFactory.ChunkedLodTreeNode(new Bounds2D(), parent, 0);
CacheNode(parent);
CacheNode(firstChild);
var cache = GetCache();
var result = LODCache.getNodesToDrawAndCache(cache, new[] { firstChild, secondChild });
CollectionAssert.AreEqual(new[] { parent }, result.Item1);
CollectionAssert.AreEqual(new[] { secondChild }, result.Item2);
}
public void All_nodes_are_requested_when_all_are_cached()
{
var node0 = new ChunkedLodTreeFactory.ChunkedLodTreeNode(new Bounds2D(), null, 0);
var node1 = new ChunkedLodTreeFactory.ChunkedLodTreeNode(new Bounds2D(), node0, 0);
var node2 = new ChunkedLodTreeFactory.ChunkedLodTreeNode(new Bounds2D(), node1, 0);
var node3 = new ChunkedLodTreeFactory.ChunkedLodTreeNode(new Bounds2D(), null, 0);
CacheNodes(node0, node1, node2, node3);
var cache = GetCache();
var result = LODCache.getNodesToDrawAndCache(cache, new[] { node0, node1, node2, node3 });
CollectionAssert.AreEqual(new[] { node0, node1, node2, node3 }, result.Item1);
Assert.IsEmpty(result.Item2);
}
public void Do_not_request_descendants_when_the_ancestor_is_also_requested()
{
var level0 = new ChunkedLodTreeFactory.ChunkedLodTreeNode(new Bounds2D(), null, 0);
var level10 = new ChunkedLodTreeFactory.ChunkedLodTreeNode(new Bounds2D(), level0, 0);
var level11 = new ChunkedLodTreeFactory.ChunkedLodTreeNode(new Bounds2D(), level0, 0);
var level20 = new ChunkedLodTreeFactory.ChunkedLodTreeNode(new Bounds2D(), level10, 0);
CacheNode(level0);
var cache = GetCache();
var result = LODCache.getNodesToDrawAndCache(cache, new[] { level11, level20 });
CollectionAssert.AreEqual(new[] { level0 }, result.Item1);
CollectionAssert.AreEqual(new[] { level11, level20 }, result.Item2);
}