public void Test_AddValueToTheEnd_When_LinkedList_Is_Not_Empty(string value)
{
// arrange
var linkedList = new DoublyLinkedList <string>();
linkedList.AddValueToTheEnd("a");
// act
linkedList.AddValueToTheEnd(value);
// assert
var values = linkedList.ToArray();
CollectionAssert.AreEqual(new[] { "a", value }, values);
}
public void Test_RemoveValue_When_Value_Is_Last(string value)
{
// arrange
var linkedList = new DoublyLinkedList <string>();
linkedList.AddValueToTheEnd("b");
linkedList.AddValueToTheEnd(value);
// act
linkedList.RemoveValue(value);
// assert
var values = linkedList.ToArray();
CollectionAssert.AreEqual(new[] { "b" }, values);
}
public void Test_Foreach()
{
// arrange
var linkedList = new DoublyLinkedList <string>();
linkedList.AddValueToTheEnd("a");
linkedList.AddValueToTheEnd("b");
linkedList.AddValueToTheEnd("c");
var results = new List <string>();
// act
foreach (var value in linkedList)
{
results.Add(value);
}
// assert
CollectionAssert.AreEqual(new[] { "a", "b", "c" }, results);
}
public void Test_RemoveValue_When_LinkedList_Has_Only_One_Value(string value)
{
// arrange
var linkedList = new DoublyLinkedList <string>();
linkedList.AddValueToTheEnd(value);
// act
linkedList.RemoveValue(value);
// assert
var values = linkedList.ToArray();
CollectionAssert.IsEmpty(values);
}