public void Singular_Should_Contain_A_Single_Item()
{
var singularIndex = 2;
var singularSequence = SequenceInvocationIndices.Singular(singularIndex);
Assert.That(singularSequence.Count, Is.EqualTo(1));
var sequenceAsArray = singularSequence.ToArray();
Assert.That(sequenceAsArray.Length, Is.EqualTo(1));
Assert.That(sequenceAsArray[0], Is.EqualTo(singularIndex));
}
