public void GetOrCreateWithNewLetter()
{
var node = new TrieTree.NodesList().GetOrCreateNode('a');
Assert.IsNotNull(node);
Assert.AreEqual('a', node.Letter);
}
public void GetOrCreateWithKnownLetter()
{
var list = new TrieTree.NodesList();
var node1 = list.GetOrCreateNode('a');
var node2 = list.GetOrCreateNode('a');
Assert.AreSame(node1, node2);
Assert.AreEqual(1, list.Count, "Count");
}
public void GetOrCreateTwoLetters()
{
var list = new TrieTree.NodesList();
var initialCount = list.Count;
var node1 = list.GetOrCreateNode('a');
var count1 = list.Count;
var node2 = list.GetOrCreateNode('b');
var count2 = list.Count;
Assert.IsNotNull(node1);
Assert.IsNotNull(node2);
Assert.AreNotSame(node1, node2);
Assert.AreEqual('a', node1.Letter);
Assert.AreEqual('b', node2.Letter);
Assert.AreEqual(0, initialCount, "initial count");
Assert.AreEqual(1, count1, "count 1");
Assert.AreEqual(2, count2, "count 2");
}