public void DLLe_ToArray_NonEmptyList_ShouldReturnArray()
{
// Arrange
var list = new DoublyLinkedListExpanded <string>();
list.AddLast("Five");
list.AddLast("Six");
list.AddLast("Seven");
// Act
var arr = list.ToArray();
// Assert
CollectionAssert.AreEqual(arr,
new string[] { "Five", "Six", "Seven" });
}
public void DLLe_ForEach_MultipleElements_ShouldEnumerateElementsCorrectly()
{
// Arrange
var list = new DoublyLinkedListExpanded <string>();
list.AddLast("Five");
list.AddLast("Six");
list.AddLast("Seven");
// Act
var items = new List <string>();
list.ForEach(items.Add);
// Assert
CollectionAssert.AreEqual(items,
new List <string>()
{
"Five", "Six", "Seven"
});
}
public void DLLe_AddLast_SeveralElements_ShouldAddElementsCorrectly()
{
// Arrange
var list = new DoublyLinkedListExpanded <int>();
// Act
list.AddLast(5);
list.AddLast(10);
list.AddLast(15);
// Assert
Assert.AreEqual(3, list.Count);
var items = new List <int>();
list.ForEach(items.Add);
CollectionAssert.AreEqual(items, new List <int>()
{
5, 10, 15
});
}
public void DLLe_IEnumerable_NonGeneric_MultipleElements()
{
// Arrange
var list = new DoublyLinkedListExpanded <object>();
list.AddLast("Five");
list.AddLast(6);
list.AddLast(7.77);
// Act
var enumerator = ((IEnumerable)list).GetEnumerator();
var items = new List <object>();
while (enumerator.MoveNext())
{
items.Add(enumerator.Current);
}
// Assert
CollectionAssert.AreEqual(items, new List <object>()
{
"Five", 6, 7.77
});
}
public void DLLe_IEnumerable_Foreach_MultipleElements()
{
// Arrange
var list = new DoublyLinkedListExpanded <string>();
list.AddLast("Five");
list.AddLast("Six");
list.AddLast("Seven");
// Act
var items = new List <string>();
foreach (var element in list)
{
items.Add(element);
}
// Assert
CollectionAssert.AreEqual(items,
new List <string>()
{
"Five", "Six", "Seven"
});
}
public void DLLe_RemoveFirst_SeveralElements_ShouldRemoveElementsCorrectly()
{
// Arrange
var list = new DoublyLinkedListExpanded <int>();
list.AddLast(5);
list.AddLast(6);
list.AddLast(7);
// Act
var element = list.RemoveFirst();
// Assert
Assert.AreEqual(5, element);
Assert.AreEqual(2, list.Count);
var items = new List <int>();
list.ForEach(items.Add);
CollectionAssert.AreEqual(items, new List <int>()
{
6, 7
});
}
public void DLLe_ForEach_SingleElement_ShouldEnumerateElementsCorrectly()
{
// Arrange
var list = new DoublyLinkedListExpanded <int>();
list.AddLast(5);
// Act
var items = new List <int>();
list.ForEach(items.Add);
// Assert
CollectionAssert.AreEqual(items, new List <int>()
{
5
});
}
public void DLLe_AddLast_EmptyList_ShouldAddElement()
{
// Arrange
var list = new DoublyLinkedListExpanded <int>();
// Act
list.AddLast(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 DLLe_RemoveFirst_OneElement_ShouldMakeListEmpty()
{
// Arrange
var list = new DoublyLinkedListExpanded <int>();
list.AddLast(5);
// Act
var element = list.RemoveFirst();
// 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>()
{
});
}