public void Delete_Success()
{
var person1 = new Person {
FirstName = "Test1", LastName = "User"
};
var personDeleted = new Person {
FirstName = "TestDeleted", LastName = "UserDeleted"
};
var person2 = new Person {
FirstName = "Test2", LastName = "User"
};
var list = new Data.LinkedList.LinkedList <Person>();
list.Append(person1);
Assert.AreEqual(list.Head.Value.FirstName, "Test1", "First Names do not match.");
Assert.AreEqual(list.Tail.Value.FirstName, "Test1", "First Names do not match.");
// Now prepend one more node.
list.Append(personDeleted);
list.Append(person2);
Assert.AreEqual(list.Head.Value.FirstName, "Test1", "First Names do not match.");
Assert.AreEqual(list.Head.Next.Value.FirstName, "TestDeleted", "First Names do not match.");
Assert.AreEqual(list.Tail.Value.FirstName, "Test2", "First Names do not match.");
Assert.IsNull(list.Tail.Next, "Tail node must have null node next to it.");
list.Delete(personDeleted);
Assert.AreEqual(list.Head.Value.FirstName, "Test1", "First Names do not match.");
Assert.AreEqual(list.Head.Next.Value.FirstName, "Test2", "First Names do not match.");
Assert.AreEqual(list.Tail.Value.FirstName, "Test2", "First Names do not match.");
Assert.IsNull(list.Tail.Next, "Tail node must have null node next to it.");
}
public void DeleteHead_Success()
{
var person1 = new Person {
FirstName = "Test1", LastName = "User"
};
var personDeleted = new Person {
FirstName = "TestDeleted", LastName = "UserDeleted"
};
var person2 = new Person {
FirstName = "Test2", LastName = "User"
};
var list = new Data.LinkedList.LinkedList <Person>(Person.Comparator);
list.Append(person1);
list.Append(personDeleted);
list.Append(person2);
list.DeleteHead();
Assert.AreEqual(list.Head.Value.FirstName, "TestDeleted", "Head is not deleted.");
}
public void DeleteTail_Success()
{
var person1 = new Person {
FirstName = "Test1", LastName = "User"
};
var personDeleted = new Person {
FirstName = "TestDeleted", LastName = "UserDeleted"
};
var person2 = new Person {
FirstName = "Test2", LastName = "User"
};
var list = new Data.LinkedList.LinkedList <Person>(Person.Comparator);
list.Append(person1);
list.Append(personDeleted);
list.Append(person2);
list.DeleteTail();
Assert.AreEqual(list.Tail, list.Head.Next, "Tail is not deleted.");
Assert.IsNull(list.Tail.Next, "Tail is not deleted.");
Assert.IsNull(list.Head.Next.Next, "Tail is not deleted.");
}
public void Find_Success()
{
var person1 = new Person {
FirstName = "Test1", LastName = "User"
};
var personDeleted = new Person {
FirstName = "TestDeleted", LastName = "UserDeleted"
};
var person2 = new Person {
FirstName = "Test2", LastName = "User"
};
var list = new Data.LinkedList.LinkedList <Person>(Person.Comparator);
list.Append(person1);
list.Append(personDeleted);
list.Append(person2);
var node = list.Find(personDeleted);
Assert.AreEqual(node.Value.FirstName, "TestDeleted", "First names do not match.");
Assert.AreEqual(node, list.Head.Next, "Node is not placed in the right place");
}