public void WhenCalledForListWithOneNode_ShouldEmptyList()
{
var sut = new ChainedList <int>(new List <int> {
1
});
sut.RemoveHead();
Assert.IsTrue(sut.IsEmpty);
}
public void WhenListNotEmpty_ShouldReturnFalse()
{
var sut = new ChainedList <int>(new List <int> {
1, 2
});
Assert.IsFalse(sut.IsEmpty);
Assert.IsTrue(sut.Any());
sut.RemoveHead();
Assert.IsFalse(sut.IsEmpty);
Assert.IsTrue(sut.Any());
}
public void WhenRemovesOnlyNOde_ShouldReturnTrue()
{
var sut = new ChainedList <int>(new List <int> {
1
});
Assert.IsFalse(sut.IsEmpty);
Assert.IsTrue(sut.Any());
sut.RemoveHead();
Assert.IsTrue(sut.IsEmpty);
Assert.IsFalse(sut.Any());
}
public void WhenCalled_ShouldRemoveHead()
{
var sut = new ChainedList <int>(new List <int> {
1, 2, 4, 10
});
sut.RemoveHead();
var first = sut.Head;
var second = first.Next;
var third = second.Next;
Assert.AreEqual(2, first.Value);
Assert.AreEqual(4, second.Value);
Assert.AreEqual(10, third.Value);
Assert.IsNull(third.Next);
}
