public void IteratorDisposedIsTrueOnceDisposed()
{
var iter = new TaskEnumerator <int>(JustOne(), 1);
iter.Dispose();
Assert.IsTrue(iter.Disposed);
}
public void IteratorRaisesOnceIteratorIsDisposed()
{
var iter = new TaskEnumerator <int>(JustOne(), 1);
iter.Dispose();
try {
using (var e = iter.CurrentItems) {
var _ = e.Current;
Assert.Fail("e.Current did not throw an InvalidOperationException");
}
} catch (InvalidOperationException) {
}
}
public void IteratorRaisesIfCurrentIsAccessedBeforeInitialMoveNext()
{
var iter = new TaskEnumerator <int>(JustOne(), 1);
Assert.IsFalse(iter.Disposed);
Scheduler.WaitFor(iter.Fetch());
try {
using (var e = iter.CurrentItems) {
var _ = e.Current;
Assert.Fail("e.Current did not throw an InvalidOperationException");
}
} catch (InvalidOperationException) {
}
iter.Dispose();
}
public void IteratorFailsMoveNextOnceIterationIsComplete()
{
var iter = new TaskEnumerator <int>(JustOne(), 1);
Assert.IsFalse(iter.Disposed);
Scheduler.WaitFor(iter.Fetch());
using (var e = iter.CurrentItems) {
Assert.IsTrue(e.MoveNext());
Assert.AreEqual(1, e.Current);
Assert.IsFalse(e.MoveNext());
}
Assert.IsFalse(iter.Disposed);
Scheduler.WaitFor(iter.Fetch());
Assert.IsTrue(iter.Disposed);
iter.Dispose();
}
public void TestTypeCoercion()
{
var iter = new TaskEnumerator <int>(TwoTypes(), 1);
Assert.IsFalse(iter.Disposed);
Scheduler.WaitFor(iter.Fetch());
using (var e = iter.CurrentItems) {
Assert.IsTrue(e.MoveNext());
Assert.AreEqual(1, e.Current);
}
Assert.IsFalse(iter.Disposed);
try {
Scheduler.WaitFor(iter.Fetch());
Assert.Fail("Fetch did not throw an InvalidCastException");
} catch (FutureException fe) {
Assert.IsInstanceOf <InvalidCastException>(fe.InnerException);
}
iter.Dispose();
}
