public void InstantiateEmptyTree_ShouldHaveDefaultValueAndNoChildren()
{
AdjacencyListTree <int> tree = new AdjacencyListTree <int>();
Assert.AreEqual(tree.NodesCount, 0, "Nodes count is not zero when creating an empty tree, but it should.");
Assert.IsNull(tree.RootNode, "Root node is not null when creating an empty tree, but it should.");
}
public void InstantiateTreeWithRootAndChildren_ShouldShouldStoreRootAndChildren()
{
List <ITreeNode <int> > childNodes = new List <ITreeNode <int> >();
childNodes.Add(new TreeNode <int>(1));
childNodes.Add(new TreeNode <int>(2));
childNodes.Add(new TreeNode <int>(3));
var node = new TreeNode <int>(0, childNodes);
var tree = new AdjacencyListTree <int>(node);
Assert.AreEqual(node.NodeName, 0, "NodeName is not the same as the value provided when creating node.");
Assert.AreEqual(node.ChildrenCount, 3,
"Node children count is not zero when creating a node with no children, but it should.");
Assert.AreEqual(tree.NodesCount, 4, "Tree NodesCount is not computed properly.");
Assert.AreEqual(tree.RootNode.NodeName, 0,
"Root NodeName is not the same as the value provided when creating node.");
}
