public void RemoveFirst_MultipleElements_ExtractsFirstElement()
{
var list = RandomAccessList.Create(1, 2, 3);
_ = list.RemoveFirst(out var first);
Assert.That(first, Is.EqualTo(1));
}
public void RemoveFirst_SingleElement_ExtractsElement()
{
var list = RandomAccessList.Create(42);
_ = list.RemoveFirst(out var first);
Assert.That(first, Is.EqualTo(42));
}
public void ForEach_MultipleElements_ActionIsCalledWithElementsInOrder()
{
var list = RandomAccessList.Create(0, 1, 2, 3, 4);
var arguments = new List <int>();
list.ForEach(arguments.Add);
Assert.That(arguments, Is.EqualTo(new[] { 0, 1, 2, 3, 4 }));
}
public void Create_ManyElements_IndexedAccessIsCorrect(int size)
{
var list = RandomAccessList.Create(Enumerable.Range(0, size).ToArray());
for (var i = 0; i < size; i++)
{
Assert.That(list[i], Is.EqualTo(i));
}
}
public void GetEnumerator_MultipleElements_YieldsElementsInOrder()
{
var list = RandomAccessList.Create(0, 1, 2, 3, 4);
var arguments = new List <int>();
foreach (var value in list)
{
arguments.Add(value);
}
Assert.That(arguments, Is.EqualTo(new[] { 0, 1, 2, 3, 4 }));
}
public void SetItem_AtIndex_DoesNotChangeOtherElements(int index)
{
var list = RandomAccessList.Create(new int[4]).SetItem(index, 42);
for (var i = 0; i < 4; i++)
{
if (i != index)
{
Assert.That(list[i], Is.Zero);
}
}
}
public void IsEmpty_NonEmpty_IsFalse()
{
var list = RandomAccessList.Create(0);
Assert.That(list.IsEmpty, Is.False);
}
public void Create_ManyElements_CountIsCorrect()
{
var list = RandomAccessList.Create(1, 2, 3);
Assert.That(list.Count(), Is.EqualTo(3));
}
public void Create_CountIsOne()
{
var list = RandomAccessList.Create(0);
Assert.That(list.Count(), Is.EqualTo(1));
}
public void RemoveFirst_SingleElement_ReturnsEmpty()
{
var list = RandomAccessList.Create(0);
Assert.That(list.RemoveFirst(out _), Is.EqualTo(RandomAccessList <int> .Empty));
}
public void SetItem_AtIndex_ElementAtIndexChanges(int index)
{
var list = RandomAccessList.Create(new int[4]).SetItem(index, 42);
Assert.That(list[index], Is.EqualTo(42));
}
public void SetItem_InvalidIndex_Throws(int index)
{
var list = RandomAccessList.Create(0, 1, 2, 3);
Assert.That(() => list.SetItem(index, 0), Throws.TypeOf <ArgumentOutOfRangeException>());
}
public void Item_AtIndex_ReturnsCorrectElement(int index)
{
var list = RandomAccessList.Create(0, 1, 2, 3);
Assert.That(list[index], Is.EqualTo(index));
}
public void RemoveFirst_MultipleElements_CountIsDecremented()
{
var list = RandomAccessList.Create(0, 1, 2);
Assert.That(list.RemoveFirst(out _).Count(), Is.EqualTo(2));
}
public void Any_NonEmpty_IsTrue()
{
var list = RandomAccessList.Create(0);
Assert.That(list.Any, Is.True);
}
public void First_SingleElement_ReturnsElement()
{
var list = RandomAccessList.Create(42);
Assert.That(list.First, Is.EqualTo(42));
}
public void First_ManyElements_ReturnsFirstElement()
{
var list = RandomAccessList.Create(1, 2, 3);
Assert.That(list.First, Is.EqualTo(1));
}