public void Collection_properties_shall_support_clearing_the_list()
{
TestObject TestObject = new TestObject();
TestObject Item1 = new TestObject(1);
TestObject Item2 = new TestObject(2);
TestObject Item3 = new TestObject(3);
TestObject.PropertyCollection.Add(Item1);
TestObject.PropertyCollection.Add(Item2);
TestObject.PropertyCollection.Add(Item3);
TestProxy6 TestProxy = new TestProxy6(TestObject);
List <NotifyCollectionChangedEventArgs> Events = new List <NotifyCollectionChangedEventArgs>();
((INotifyCollectionChanged)TestProxy.CollectionProperty).CollectionChanged += (s, e) => Events.Add(e);
bool ChangedEventCalled = false;
TestProxy.PropertyChanged += (s, e) => ChangedEventCalled = true;
TestObject.PropertyCollection.Clear();
TestProxy6[] Items = TestProxy.CollectionProperty.ToArray();
Assert.AreEqual(0, Items.Length);
Assert.AreEqual(1, Events.Count); // clear
}
public void Collection_properties_shall_be_converted_to_observable_collections()
{
TestObject TestObject = new TestObject();
TestProxy6 TestProxy = new TestProxy6(TestObject);
Assert.IsInstanceOf <INotifyCollectionChanged>(TestProxy.CollectionProperty);
}
static TestProxy6()
{
TestProxy6.collectionPropertyAdapter = ObservableObject.GetPropertyAdapterFactory <TestProxy6>().Create(
nameof(TestProxy6.CollectionProperty),
_ => TestProxy6.ReturnOrThrow(_.Source.PropertyCollection, _.ThrowException),
(_, item) => new TestProxy6(item, _.Source.Property));
}
public TestProxy6(TestObject value, int property = 0)
{
this.Source = value;
this.DependentProperty = property;
this.collectionPropertyAdapter = this.CreatePropertyAdapter(
nameof(this.CollectionProperty),
() => TestProxy6.ReturnOrThrow(this.Source.PropertyCollection, this.ThrowException),
item => new TestProxy6(item, value.Property));
}
public void Collection_properties_shall_return_the_items_on_deferred_execution_iterators()
{
TestObject TestObject = new TestObject();
TestProxy6 TestProxy = new TestProxy6(TestObject, 2);
int[] Items = TestProxy.DeferredCollectionProperty.ToArray();
Assert.AreEqual(2, Items[0]);
}
static TestProxy6()
{
TestProxy6.collectionPropertyAdapter = ObservableObject.GetPropertyAdapterFactory <TestProxy6>().Create(
nameof(TestProxy6.CollectionProperty),
_ => TestProxy6.ReturnOrThrow(_.Source.PropertyCollection, _.ThrowException),
(_, item) => new TestProxy6(item, _.Source.Property));
TestProxy6.deferredCollectionPropertyAdapter = ObservableObject.GetPropertyAdapterFactory <TestProxy6>().Create(
nameof(TestProxy6.DeferredCollectionProperty),
_ => new[] { 1, 2, 3 }.SkipWhile(item => item < _.DependentProperty).TakeWhile(item => item <= _.DependentProperty),
(_, item) => item);
}
public void Collection_properties_shall_return_the_items()
{
TestObject TestObject = new TestObject();
TestObject Item1 = new TestObject();
TestObject Item2 = new TestObject();
TestObject.PropertyCollection.Add(Item1);
TestObject.PropertyCollection.Add(Item2);
TestProxy6 TestProxy = new TestProxy6(TestObject);
TestProxy6[] Items = TestProxy.CollectionProperty.ToArray();
Assert.AreEqual(Item1, Items[0].Source);
Assert.AreEqual(Item2, Items[1].Source);
}
public void Collection_properties_shall_reflect_change_on_complete_reset()
{
TestObject TestObject = new TestObject();
TestObject Item1 = new TestObject(1);
TestObject Item2 = new TestObject(2);
TestObject Item3 = new TestObject(3);
TestObject Item4 = new TestObject(4);
TestObject Item5 = new TestObject(5);
TestObject.PropertyCollection.Add(Item1);
TestObject.PropertyCollection.Add(Item2);
TestObject.PropertyCollection.Add(Item3);
TestProxy6 TestProxy = new TestProxy6(TestObject);
Assert.That(TestObject.PropertyCollection.Count, Is.EqualTo(3));
ObservableCollection <TestObject> NewList = new ObservableCollection <TestObject>();
NewList.Add(Item5);
NewList.Add(Item4);
NewList.Add(Item3);
NewList.Add(Item2);
List <NotifyCollectionChangedEventArgs> Events = new List <NotifyCollectionChangedEventArgs>();
((INotifyCollectionChanged)TestProxy.CollectionProperty).CollectionChanged += (s, e) => Events.Add(e);
#pragma warning disable 219
bool ChangedEventCalled = false;
#pragma warning restore 219
TestProxy.PropertyChanged += (s, e) => ChangedEventCalled = true;
TestObject.PropertyCollection = NewList;
TestProxy6[] Items = TestProxy.CollectionProperty.ToArray();
Assert.That(Items[0].Source, Is.EqualTo(Item5));
Assert.That(Items[1].Source, Is.EqualTo(Item4));
Assert.That(Items[2].Source, Is.EqualTo(Item3));
Assert.That(Items[3].Source, Is.EqualTo(Item2));
Assert.That(Events.Count, Is.EqualTo(4)); // remove #1, add #5, add #4, move #3
}
public void Collection_properties_shall_reflect_change_on_complete_reset()
{
TestObject TestObject = new TestObject();
TestObject Item1 = new TestObject(1);
TestObject Item2 = new TestObject(2);
TestObject Item3 = new TestObject(3);
TestObject Item4 = new TestObject(4);
TestObject Item5 = new TestObject(5);
TestObject.PropertyCollection.Add(Item1);
TestObject.PropertyCollection.Add(Item2);
TestObject.PropertyCollection.Add(Item3);
TestProxy6 TestProxy = new TestProxy6(TestObject);
ObservableCollection <TestObject> NewList = new ObservableCollection <TestObject>();
NewList.Add(Item5);
NewList.Add(Item4);
NewList.Add(Item3);
NewList.Add(Item2);
List <NotifyCollectionChangedEventArgs> Events = new List <NotifyCollectionChangedEventArgs>();
((INotifyCollectionChanged)TestProxy.CollectionProperty).CollectionChanged += (s, e) => Events.Add(e);
bool ChangedEventCalled = false;
TestProxy.PropertyChanged += (s, e) => ChangedEventCalled = true;
TestObject.PropertyCollection = NewList;
TestProxy6[] Items = TestProxy.CollectionProperty.ToArray();
Assert.AreEqual(Item5, Items[0].Source);
Assert.AreEqual(Item4, Items[1].Source);
Assert.AreEqual(Item3, Items[2].Source);
Assert.AreEqual(Item2, Items[3].Source);
Assert.AreEqual(4, Events.Count); // remove #1 on index 0, add #5 on index 0, add #4 on index 1, move #3 from 3 to 2
}
public void Collection_properties_shall_reflect_deletion_of_item_thats_twice_in_the_list()
{
TestObject TestObject = new TestObject();
TestObject Item1 = new TestObject(1);
TestObject Item2 = new TestObject(2);
TestObject.PropertyCollection.Add(Item2);
TestObject.PropertyCollection.Add(Item1);
TestObject.PropertyCollection.Add(Item2);
TestProxy6 TestProxy = new TestProxy6(TestObject);
TestObject.PropertyCollection.Remove(Item2);
TestProxy6[] Items = TestProxy.CollectionProperty.ToArray();
Assert.AreEqual(Item1, Items[0].Source);
Assert.AreEqual(Item2, Items[1].Source);
}
public void Collection_properties_shall_reflect_insert_of_item_already_in_list()
{
TestObject TestObject = new TestObject();
TestObject Item1 = new TestObject(1);
TestObject Item2 = new TestObject(2);
TestObject.PropertyCollection.Add(Item1);
TestObject.PropertyCollection.Add(Item2);
TestProxy6 TestProxy = new TestProxy6(TestObject);
TestObject.PropertyCollection.Insert(0, Item2);
TestProxy6[] Items = TestProxy.CollectionProperty.ToArray();
Assert.AreEqual(Item2, Items[0].Source);
Assert.AreEqual(Item1, Items[1].Source);
Assert.AreEqual(Item2, Items[2].Source);
}
public void Collection_properties_shall_issue_the_exception_if_one_was_thrown_retrieving_the_value()
{
TestObject TestObject = new TestObject();
TestObject Item1 = new TestObject(1);
TestObject Item2 = new TestObject(2);
TestObject.PropertyCollection.Add(Item1);
TestObject.PropertyCollection.Add(Item2);
TestProxy6 TestProxy = new TestProxy6(TestObject);
TestProxy.ThrowException = true;
Assert.Throws <InvalidOperationException>(() => TestProxy.CollectionProperty.ToArray());
TestProxy.ThrowException = false;
TestProxy6[] Items = TestProxy.CollectionProperty.ToArray();
Assert.AreEqual(Item1, Items[0].Source);
Assert.AreEqual(Item2, Items[1].Source);
}
public void Collection_properties_shall_be_completely_reset_if_inputs_to_adapter_creation_expression_change()
{
TestObject TestObject = new TestObject();
TestObject Item1 = new TestObject(1);
TestObject Item2 = new TestObject(2);
TestObject Item3 = new TestObject(3);
TestObject.PropertyCollection.Add(Item1);
TestObject.PropertyCollection.Add(Item2);
TestObject.PropertyCollection.Add(Item3);
TestProxy6 TestProxy = new TestProxy6(TestObject);
//All objects must be re-created because of the dependency to 'property' in the adapter creation
TestObject.Property = 42;
TestProxy6[] Items = TestProxy.CollectionProperty.ToArray();
Assert.AreEqual(42, Items[0].DependentProperty);
Assert.AreEqual(42, Items[1].DependentProperty);
Assert.AreEqual(42, Items[2].DependentProperty);
}
