public void Iterator_Advance_Test()
{
var input = new List <int> {
0, 1, 2, 3
};
var mi = new MemoizedInput <int>(input);
var it = mi.Begin;
Assert.AreNotEqual(it, mi.End);
Assert.AreEqual(it.Current, input[0]);
Assert.AreEqual(mi.At(3), mi.End);
Assert.AreEqual(it.Next().Current, input[1]);
Assert.AreEqual(it.Next().Next().Current, input[2]);
Assert.AreEqual(it.Next().Next().Next().Current, input[3]);
Assert.AreEqual(it.Next().Next().Next().Next(), mi.End);
var it2 = it;
it2 = it2.Next().Next();
Assert.AreNotEqual(it, it2);
Assert.AreEqual(it, mi.Begin);
Assert.AreEqual(mi.At(2), it2);
}
public void Iterator_Comparison_Test()
{
var input = new List <int> {
0, 1, 2, 3
};
var mi = new MemoizedInput <int>(input);
var it = mi.Begin;
Assert.AreEqual(it.Next().Next().Next().Next(), mi.End);
Assert.IsTrue(mi.Begin < mi.End);
Assert.IsTrue(mi.Begin <= mi.End);
Assert.IsTrue(mi.End > mi.Begin);
Assert.IsTrue(mi.End >= mi.Begin);
Assert.IsTrue(mi.At(0) >= mi.Begin);
Assert.IsTrue(mi.At(0) <= mi.Begin);
Assert.IsTrue(mi.At(0) == mi.Begin);
it = it.Next();
Assert.IsTrue(it > mi.Begin);
Assert.IsTrue(it >= mi.Begin);
Assert.IsTrue(it.Next() >= it);
Assert.IsTrue(mi.End > it);
Assert.IsTrue(mi.Begin < it);
}
public void Empty_Input_Test()
{
var input = new List <int>();
var mi = new MemoizedInput <int>(input);
var it_0 = mi.Begin;
Assert.AreEqual(it_0, mi.End);
Assert.AreEqual(it_0.Next(), mi.End);
Assert.AreEqual(it_0.Next().Next(), mi.End);
Assert.AreEqual(mi.At(10), mi.End);
Assert.AreEqual(mi.At(0), mi.End);
Assert.AreEqual(mi.At(-1), mi.End);
}