public void ValidatesAddFirstMethodForEmptyList()
{
var list = new LinkedListCollection <int>();
list.AddFirst(4);
Assert.Equal(4, list.GetFirst.Value);
}
public void ValidatesCointainsMethod()
{
var list = new LinkedListCollection <int> {
1, 2, 3
};
Assert.Contains(2, list);
}
public void ValidatesFindLastMethod()
{
var list = new LinkedListCollection <int> {
1, 2, 3, 4, 5
};
Assert.Equal(list.GetLast.Previous, list.Find(4));
}
public void ValidatesRemoveMethodThatReturnsFalse()
{
var list = new LinkedListCollection <int> {
1, 2, 3
};
Assert.False(list.Remove(4));
}
public void ValidatesFindFirstMethod()
{
var list = new LinkedListCollection <int> {
1, 2, 3
};
Assert.Equal(list.GetFirst, list.Find(1));
}
public void ValidatesClearMethod()
{
var list = new LinkedListCollection <int> {
1, 2, 3
};
list.Clear();
Assert.Empty(list);
}
public void NegativeIndexCopyToMethodException()
{
var test = new LinkedListCollection <int>();
int[] testArray = new int[4];
test.Add(1);
test.Add(2);
Assert.Throws <ArgumentOutOfRangeException>(() => test.CopyTo(testArray, -1));
}
public void ArrayNullCopyToMethodException()
{
var test = new LinkedListCollection <int>();
int[] testArray = null;
test.Add(1);
test.Add(2);
Assert.Throws <ArgumentNullException>(() => test.CopyTo(testArray, 0));
}
public void NullNodeAddFirstMethodException()
{
var test = new LinkedListCollection <int> {
1, 2
};
LinkedListNode <int> testNode = null;
Assert.Throws <ArgumentNullException>(() => test.AddFirst(testNode));
}
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 ArgumentNullRemoveMethodException()
{
var test = new LinkedListCollection <int> {
1, 2
};
LinkedListNode <int> nullNode = null;
Assert.Throws <ArgumentNullException>(() => test.Remove(nullNode));
}
public void NullItemAddMethodException()
{
var test = new LinkedListCollection <int?> {
1, 2
};
int?testNode = null;
Assert.Throws <ArgumentNullException>(() => test.AddLast(testNode));
}
public void ValidatesAddFirstMethodForListWithElements()
{
var list = new LinkedListCollection <int> {
1, 2, 3
};
list.AddFirst(4);
Assert.Equal(4, list.GetFirst.Value);
}
public void ValidatesRemoveFirstMethod()
{
var list = new LinkedListCollection <int> {
1, 2, 3
};
list.RemoveFirst();
Assert.Equal(2, list.GetFirst.Value);
}
public void ValidatesAddAfterMethod()
{
var list = new LinkedListCollection <int> {
1, 3, 4
};
list.AddAfter(list.GetFirst, 2);
Assert.Equal(2, list.GetFirst.Next.Value);
}
public void ValidatesAddBeforeMethod()
{
var list = new LinkedListCollection <int> {
1, 2, 4
};
list.AddBefore(list.GetLast, 3);
Assert.Equal(3, list.GetLast.Previous.Value);
}
public void ValidatesRemoveMethod()
{
var list = new LinkedListCollection <int> {
1, 2, 3
};
Assert.True(list.Remove(2));
Assert.Equal(1, list.GetFirst.Value);
Assert.Equal(3, list.GetLast.Value);
}
public void AddMethodInvalidOperationException()
{
var test = new LinkedListCollection <int> {
1, 2
};
LinkedListNode <int> node = new LinkedListNode <int>(2);
test.Add(node);
Assert.Throws <InvalidOperationException>(() => test.Add(node));
}
public void RemoveMethodInvalidOperationException()
{
var test = new LinkedListCollection <int> {
1, 2
};
var secondTestList = new LinkedListCollection <int> {
1, 2
};
LinkedListNode <int> node = new LinkedListNode <int>(3);
secondTestList.Add(node);
Assert.Throws <InvalidOperationException>(() => test.Remove(node));
}
public void ValidateConstructorWithGivenArray()
{
int[] array = new[] { 1, 2, 3, 4 };
var list = new LinkedListCollection <int>(array);
Assert.Equal(1, list.GetFirst.Value);
Assert.Equal(4, list.GetLast.Value);
LinkedListNode <int> current = list.GetFirst;
foreach (int digit in array)
{
Assert.Equal(digit, current.Value);
current = current.Next;
}
}
public void ValidatesCopyToMethod()
{
var list = new LinkedListCollection <int> {
1, 2, 3
};
var array = new int[3];
list.CopyTo(array, 0);
LinkedListNode <int> node = list.GetFirst;
foreach (var x in array)
{
Assert.Equal(x, node.Value);
node = node.Next;
}
}
public void ValidateImplicitConstructor()
{
var list = new LinkedListCollection <int>();
Assert.Empty(list);
}
