public void ValidatesAddFirstMethodForEmptyList()
{
var list = new LinkedListCollection <int>();
list.AddFirst(4);
Assert.Equal(4, list.GetFirst.Value);
}
public void IsReadOnlyAddFirstMethodException()
{
var test = new LinkedListCollection <int>();
test.Add(1);
test.Add(2);
test = test.ReadOnlyList();
Assert.Throws <NotSupportedException>(() => test.AddFirst(3));
}
public void NullNodeAddFirstMethodException()
{
var test = new LinkedListCollection <int> {
1, 2
};
LinkedListNode <int> testNode = null;
Assert.Throws <ArgumentNullException>(() => test.AddFirst(testNode));
}
public void ValidatesAddFirstMethodForListWithElements()
{
var list = new LinkedListCollection <int> {
1, 2, 3
};
list.AddFirst(4);
Assert.Equal(4, list.GetFirst.Value);
}
