void CollectionIsDisposed(int sequenceLength, bool iterateOver)
{
var originalSequence = new EnumerableWithDisposableEnumerator(Enumerable.Repeat(int.MaxValue, sequenceLength));
IEnumerable <int> sequence = originalSequence;
EnumerableExtensions.IsEmpty(ref sequence);
if (iterateOver)
{
sequence.ToList();
}
Assert.IsTrue(originalSequence.IsDisposed == iterateOver);
}
public void TestExceptionalEnumerableIsDisposed(int indexThatThrows)
{
var originalSequence = new EnumerableWithDisposableEnumerator(EnumerableThatThrows());
try
{
IEnumerable <int> sequence = originalSequence;
EnumerableExtensions.IsEmpty(ref sequence);
sequence.ToList();
}
catch { }
Assert.IsTrue(originalSequence.IsDisposed);
IEnumerable <int> EnumerableThatThrows()
{
for (int i = 0; i < indexThatThrows; i++)
{
yield return(0);
}
throw new Exception();
}
}
