public void BuildTree_SimpleTree()
{
//Arrange
var processor = new InputProcessorMockup();
var leafTree = processor.BuildSimpleTree();
var builder = new TreeBuilder(leafTree);
//Act
builder.BuildTree();
//Assert
Assert.AreEqual(builder.tree.Count, 1);
var root = builder.tree.First();
Assert.IsTrue(root.GetType() != typeof(Leaf));
Assert.AreEqual(root.frequency, 6);
Assert.AreEqual(root.creationId, 2);
Assert.IsTrue(root.left.GetType() == typeof(Leaf));
Assert.AreEqual(root.left.character, Convert.ToByte('a'));
Assert.AreEqual(root.left.frequency, 3);
Assert.IsTrue(root.right.GetType() != typeof(Leaf));
Assert.AreEqual(root.right.frequency, 3);
Assert.AreEqual(root.right.creationId, 1);
Assert.IsTrue(root.right.left.GetType() == typeof(Leaf));
Assert.AreEqual(root.right.left.character, Convert.ToByte('c'));
Assert.AreEqual(root.right.left.frequency, 1);
Assert.IsTrue(root.right.right.GetType() == typeof(Leaf));
Assert.AreEqual(root.right.right.character, Convert.ToByte('b'));
Assert.AreEqual(root.right.right.frequency, 2);
}
public void PrintTree_PrintSimpleTree()
{
//Arrange
var processor = new InputProcessorMockup();
var leafTree = processor.BuildSimpleTree();
var builder = new TreeBuilder(leafTree);
using (StringWriter stringWriter = new StringWriter())
{
//Act
builder.BuildTree();
Console.SetOut(stringWriter);
builder.PrintTree(builder.tree.First());
//Assert
Assert.AreEqual("6 *97:3 3 *99:1 *98:2", stringWriter.ToString());
}
}
public void InitializeTree_ValidDictionary()
{
//Arrange
var processor = new InputProcessorMockup();
var dict = processor.GetUniqueBytes();
//Act
var leafTree = processor.InitializeTree(dict);
//Assert
Assert.AreEqual(leafTree.Count, 10);
int c = (byte)'a';
int i = 0;
foreach (var node in leafTree)
{
Assert.AreEqual(node.character, Convert.ToByte(c + i));
Assert.AreEqual(node.frequency, 4);
Assert.IsTrue(node.GetType() == typeof(Leaf));
i++;
}
}