public void ReduceLeftDisposesOfTheEnumerator()
{
var source = new[] { 1, 2, 3 };
var enumerableSpy = new EnumerableSpy <int>(source);
enumerableSpy.ReduceLeft <int, int>((_, __) => _);
Assert.That(enumerableSpy.NumCallsToDispose, Is.EqualTo(1));
}
public void IsEmptyDisposesOfTheEnumerator()
{
var source = new[] { 1, 2, 3 };
var enumerableSpy = new EnumerableSpy <int>(source);
enumerableSpy.IsEmpty();
Assert.That(enumerableSpy.NumCallsToDispose, Is.EqualTo(1));
}
public void PatchDisposesOfTheEnumerator()
{
var source = Utils.EmptySequence <int>();
var patch = Utils.EmptySequence <int>();
var enumerableSpy = new EnumerableSpy <int>(source);
enumerableSpy.Patch(0, patch, 0).ToList();
Assert.That(enumerableSpy.NumCallsToDispose, Is.EqualTo(1));
}
public void MapYields()
{
var enumerableSpy = new EnumerableSpy <int>(new[] { 1, 2, 3 });
var actual = enumerableSpy.Map(i => i * i);
Assert.That(enumerableSpy.NumCallsToMoveNext, Is.EqualTo(0));
Assert.That(actual.ElementAt(1), Is.EqualTo(4));
Assert.That(enumerableSpy.NumCallsToMoveNext, Is.EqualTo(2));
}
public EnumeratorSpy(EnumerableSpy <T> enumerableSpy)
{
_enumerableSpy = enumerableSpy;
}