public void WontRemoveEnumeratorsReturningTrueWithCurrentNull()
{
var time = new DateTime(2016, 03, 03, 12, 05, 00);
var stream1 = Enumerable.Range(0, 20)
// return null except the last value and check if its emitted
.Select(x => x == 19 ? new Tick {
Time = time.AddSeconds(x * 100), Quantity = 998877
} : null
).GetEnumerator();
var stream2 = Enumerable.Range(0, 5).Select(x => new Tick {
Time = time.AddSeconds(x * 2)
}).GetEnumerator();
var stream3 = Enumerable.Range(0, 20).Select(x => new Tick {
Time = time.AddSeconds(x * 0.5)
}).GetEnumerator();
var previous = new Tick {
Time = DateTime.MinValue
};
var synchronizer = new SynchronizingBaseDataEnumerator(stream1, stream2, stream3);
while (synchronizer.MoveNext())
{
Assert.That(synchronizer.Current.EndTime, Is.GreaterThanOrEqualTo(previous.EndTime));
previous = synchronizer.Current as Tick;
}
Assert.AreEqual(998877, previous.Quantity);
synchronizer.Dispose();
}
public void WillStopIfAllEnumeratorsCurrentIsNullAndReturningFalse()
{
var stream1 = new TestEnumerator {
MoveNextReturnValue = false
};
var synchronizer = new SynchronizingBaseDataEnumerator(stream1);
while (synchronizer.MoveNext())
{
Assert.Fail();
}
Assert.IsTrue(stream1.MoveNextWasCalled);
Assert.Pass();
synchronizer.Dispose();
}
public void WillRemoveEnumeratorsReturningFalse()
{
var time = new DateTime(2016, 03, 03, 12, 05, 00);
var stream1 = new TestEnumerator {
MoveNextReturnValue = false
};
var stream2 = Enumerable.Range(0, 10).Select(x => new Tick {
Time = time.AddSeconds(x * 2)
}).GetEnumerator();
var synchronizer = new SynchronizingBaseDataEnumerator(stream1, stream2);
var emitted = false;
while (synchronizer.MoveNext())
{
emitted = true;
}
Assert.IsTrue(emitted);
Assert.IsTrue(stream1.MoveNextWasCalled);
Assert.AreEqual(1, stream1.MoveNextCallCount);
synchronizer.Dispose();
}
public void SynchronizesData()
{
var time = new DateTime(2016, 03, 03, 12, 05, 00);
var stream1 = Enumerable.Range(0, 10).Select(x => new Tick {
Time = time.AddSeconds(x * 1)
}).GetEnumerator();
var stream2 = Enumerable.Range(0, 5).Select(x => new Tick {
Time = time.AddSeconds(x * 2)
}).GetEnumerator();
var stream3 = Enumerable.Range(0, 20).Select(x => new Tick {
Time = time.AddSeconds(x * 0.5)
}).GetEnumerator();
var previous = DateTime.MinValue;
var synchronizer = new SynchronizingBaseDataEnumerator(stream1, stream2, stream3);
while (synchronizer.MoveNext())
{
Assert.That(synchronizer.Current.EndTime, Is.GreaterThanOrEqualTo(previous));
previous = synchronizer.Current.EndTime;
}
synchronizer.Dispose();
}