public void BoundariesEnforced_EvenIfStartIsSuccessor()
{
var line = NumericalLineGenerator.GenerateFrom(128);
var start = (IPredecessor <byte>)line;
var end = start.Next;
var segment = Mock.Of <ISegment <byte> >(m => m.Start == start && m.End == end);
var collection = segment.ToReadonlyReversibleCollection();
Check.That(collection.Count).Equals(2);
using (var enumerator = collection.GetEnumerator())
{
Check.That(enumerator.Current).IsDefaultValue();
Check.That(enumerator.MoveNext()).IsTrue();
Check.That(enumerator.Current).Equals(128);
Check.That(enumerator.MoveNext()).IsTrue();
Check.That(enumerator.Current).Equals(129);
Check.That(enumerator.MoveNext()).IsFalse();
Check.That(enumerator.Current).IsDefaultValue();
Check.That(enumerator.MovePrevious()).IsTrue();
Check.That(enumerator.Current).Equals(129);
Check.That(enumerator.MovePrevious()).IsTrue();
Check.That(enumerator.Current).Equals(128);
Check.That(enumerator.MovePrevious()).IsFalse();
Check.That(enumerator.Current).IsDefaultValue();
}
}
public void Initialize()
{
_enumeratorImplicitBehavior = new ReversibleEnumeratorImplicitBehaviorFixture <byte>(
() => NumericalLineGenerator.GenerateFrom(128).ToReversibleEnumerable().GetEnumerator(),
byte.MaxValue - 127,
129);
}
public void Initialize()
{
_enumeratorImplicitBehavior =
new ReversibleEnumeratorImplicitBehaviorFixture <byte>(
() => NumericalLineGenerator.GenerateFrom(128).ToReversibleEnumerable().Narrow <byte>(126, 130).GetEnumerator(),
3, 3);
}
public void Next_ThenPrevious_IgnoresPrimer()
{
using (var enumerator = NumericalLineGenerator.GenerateFrom(128)
.ToReversibleEnumerable()
.GetEnumerator())
{
Check.That(enumerator.MoveNext()).IsTrue();
Check.That(enumerator.MovePrevious()).IsTrue();
Check.That(enumerator.Current).Equals(127);
}
}
