public void IteratorWithDepenedenciesDoesNotEnumerateSourceUntilResultIsEnumerated()
{
var sourceCollection = new SourceCollection(With.Inputs(Tom, Tim, Jack));
Assert.AreEqual(0, sourceCollection.GetEnumeratorCalls);
var contactIterator = new SimpleIterator <Contact>(sourceCollection.AsBindable());
Assert.AreEqual(0, sourceCollection.GetEnumeratorCalls);
contactIterator.AcceptDependency(new ItemDependencyDefinition("Name"));
Assert.AreEqual(0, sourceCollection.GetEnumeratorCalls);
foreach (var c in contactIterator)
{
}
Assert.AreEqual(1, sourceCollection.GetEnumeratorCalls);
contactIterator.Dispose();
Assert.AreEqual(1, sourceCollection.GetEnumeratorCalls);
}
public void IteratorUnsubscribesFromItemWhenRemoved()
{
var sourceCollection = With.Inputs(Mike, Tom, Jack);
var contactIterator = new SimpleIterator <Contact>(sourceCollection);
Assert.IsFalse(Mike.HasPropertyChangedSubscribers);
Assert.IsFalse(Tom.HasPropertyChangedSubscribers);
Assert.IsFalse(Jack.HasPropertyChangedSubscribers);
// TODO: Assert.IsTrue(sourceCollection.HasPropertyChangedSubscribers);
// TODO: Assert.IsTrue(sourceCollection.HasCollectionChangedSubscribers);
contactIterator.AcceptDependency(new ItemDependencyDefinition("Name"));
foreach (var c in contactIterator)
{
}
Assert.IsTrue(Mike.HasPropertyChangedSubscribers);
Assert.IsTrue(Tom.HasPropertyChangedSubscribers);
Assert.IsTrue(Jack.HasPropertyChangedSubscribers);
// TODO: Assert.IsTrue(sourceCollection.HasPropertyChangedSubscribers);
// TODO: Assert.IsTrue(sourceCollection.HasCollectionChangedSubscribers);
sourceCollection.Remove(Tom);
Assert.IsTrue(Mike.HasPropertyChangedSubscribers);
Assert.IsFalse(Tom.HasPropertyChangedSubscribers);
Assert.IsTrue(Jack.HasPropertyChangedSubscribers);
// TODO: Assert.IsTrue(sourceCollection.HasPropertyChangedSubscribers);
// TODO: Assert.IsTrue(sourceCollection.HasCollectionChangedSubscribers);
contactIterator.Dispose();
Assert.IsFalse(Mike.HasPropertyChangedSubscribers);
Assert.IsFalse(Tom.HasPropertyChangedSubscribers);
Assert.IsFalse(Jack.HasPropertyChangedSubscribers);
// TODO: Assert.IsFalse(sourceCollection.HasPropertyChangedSubscribers);
// TODO: Assert.IsFalse(sourceCollection.HasCollectionChangedSubscribers);
}