public void Add_EmptyList_ShouldAddElement()
{
// Arrange
var list = new LinkedList.LinkedList<int>();
// Act
list.Add(5);
// Assert
Assert.AreEqual(1, list.Count);
var items = new List<int>();
list.ForEach(items.Add);
CollectionAssert.AreEqual(items, new List<int>(){ 5 });
}
public void Remove_OneElement_ShouldMakeListEmpty()
{
// Arrange
var list = new LinkedList.LinkedList<int>();
list.Add(5);
// Act
var element = list.Remove(0);
// Assert
Assert.AreEqual(5, element);
Assert.AreEqual(0, list.Count);
var items = new List<int>();
list.ForEach(items.Add);
CollectionAssert.AreEqual(items, new List<int>() { });
}
public void Add_SeveralElements_ShouldAddElementsCorrectly()
{
// Arrange
var list = new LinkedList.LinkedList<int>();
// Act
list.Add(10);
list.Add(5);
list.Add(3);
// Assert
Assert.AreEqual(3, list.Count);
var items = new List<int>();
list.ForEach(items.Add);
CollectionAssert.AreEqual(items, new List<int>() { 10, 5 , 3 });
}
public void Remove_SeveralElements_ShouldRemoveElementsCorrectly()
{
// Arrange
var list = new LinkedList.LinkedList<int>();
list.Add(5);
list.Add(6);
list.Add(7);
// Act
var elementOne = list.Remove(0);
var elementTwo = list.Remove(1);
// Assert
Assert.AreEqual(5, elementOne);
Assert.AreEqual(7, elementTwo);
Assert.AreEqual(1, list.Count);
var items = new List<int>();
list.ForEach(items.Add);
CollectionAssert.AreEqual(items, new List<int>() { 6 });
}
public void ForEach_MultipleElements_ShouldEnumerateElementsCorrectly()
{
// Arrange
var list = new LinkedList.LinkedList<string>();
list.Add("Five");
list.Add("Six");
list.Add("Seven");
// Act
var items = new List<string>();
list.ForEach(items.Add);
// Assert
CollectionAssert.AreEqual(items,
new List<string>() { "Five", "Six", "Seven" });
}
public void ForEach_SingleElement_ShouldEnumerateElementsCorrectly()
{
// Arrange
var list = new LinkedList.LinkedList<int>();
list.Add(5);
// Act
var items = new List<int>();
list.ForEach(items.Add);
// Assert
CollectionAssert.AreEqual(items, new List<int>() { 5 });
}
public void RemoveLast_SeveralElements_ShouldRemoveElementsCorrectly()
{
// Arrange
var list = new LinkedList.LinkedList<int>();
list.Add(10);
list.Add(9);
list.Add(8);
// Act
var element = list.Remove(2);
// Assert
Assert.AreEqual(8, element);
Assert.AreEqual(2, list.Count);
var items = new List<int>();
list.ForEach(items.Add);
CollectionAssert.AreEqual(items, new List<int>() { 10, 9 });
}