public void RaisesViewsCollectionChangedOnConnectAndDisconnect()
{
var connected = new object();
var view = new object();
var match = Substitute.For <IViewModelViewMatch>();
match.View.Returns(view);
this._viewMatcher.Match(connected).Returns(match);
IItemsPlacementConnector connector = this.CreateTestObject();
connector.Connect(new object()); // чтобы проверяемый индекс отличался от нуля.
NotifyCollectionChangedEventArgs args = null;
connector.Views.CollectionChanged += (sender, e) => args = e;
connector.Connect(connected);
Assert.AreEqual(NotifyCollectionChangedAction.Add, args.Action);
Assert.AreEqual(1, args.NewStartingIndex);
CollectionAssert.Contains(args.NewItems, view);
connector.Disconnect(connected);
Assert.AreEqual(NotifyCollectionChangedAction.Remove, args.Action);
Assert.AreEqual(1, args.OldStartingIndex);
CollectionAssert.Contains(args.OldItems, view);
}
public void AvoidsUIEffectWhileDisconnecting()
{
// О целях данного теста, см. AvoidsUIEffectWhileConnecting.
var connected1 = new object();
var connected2 = new object();
var connected3 = new object();
IItemsPlacementConnector connector = this.CreateTestObject();
connector.Connect(connected1);
connector.Connect(connected2);
connector.Connect(connected3);
connector.Active = connected2;
connector.Views.CollectionChanged += (sender, e) =>
{
((ICollectionView)sender).MoveCurrentToFirst();
};
connector.ActiveChanged += (sender, e) =>
{
Assert.AreEqual(connected2, e.OldValue);
Assert.AreEqual(connected3, e.NewValue);
};
connector.Disconnect(connected2);
}
public void MovesViewInRespectToConnected()
{
var connected1 = new object();
var connected2 = new object();
var view1 = new object();
var view2 = new object();
var match1 = Substitute.For <IViewModelViewMatch>();
var match2 = Substitute.For <IViewModelViewMatch>();
match1.View.Returns(view1);
match2.View.Returns(view2);
this._viewMatcher.Match(connected1).Returns(match1);
this._viewMatcher.Match(connected2).Returns(match2);
IItemsPlacementConnector connector = this.CreateTestObject();
connector.Connect(connected1);
connector.Connect(connected2);
connector.MoveConnected(connected1, 1);
Assert.AreEqual(1, connector.Views.Cast <object>().ToList().IndexOf(view1));
}
public void RemovesDisconnectedViewFromViews()
{
var connected1 = new object();
var connected2 = new object();
var view1 = new object();
var view2 = new object();
var match1 = Substitute.For <IViewModelViewMatch>();
var match2 = Substitute.For <IViewModelViewMatch>();
match1.View.Returns(view1);
match2.View.Returns(view2);
this._viewMatcher.Match(connected1).Returns(match1);
this._viewMatcher.Match(connected2).Returns(match2);
IItemsPlacementConnector connector = this.CreateTestObject();
connector.Connect(connected1);
connector.Connect(connected2);
connector.Disconnect(connected1);
Assert.IsFalse(connector.Views.Contains(view1));
Assert.IsTrue(connector.Views.Contains(view2));
}
public void ActivatesOnConnectWhenActivateOnConnectFlagSet()
{
var connected1 = new object();
var connected2 = new object();
var view1 = new object();
var view2 = new object();
var match1 = Substitute.For <IViewModelViewMatch>();
var match2 = Substitute.For <IViewModelViewMatch>();
match1.View.Returns(view1);
match2.View.Returns(view2);
this._viewMatcher.Match(connected1).Returns(match1);
this._viewMatcher.Match(connected2).Returns(match2);
IItemsPlacementConnector connector = this.CreateTestObject(ItemsPlacementConnectorFlags.ActivateOnConnect);
connector.Connect(connected1);
Assert.AreEqual(connected1, connector.Active);
Assert.AreEqual(view1, connector.Views.CurrentItem);
connector.Connect(connected2);
Assert.AreEqual(connected2, connector.Active);
Assert.AreEqual(view2, connector.Views.CurrentItem);
}
public void AvoidsUIEffectWhileConnecting()
{
// Задача теста: убедиться, что внешнее влияние на Views
// в процессе вызова Connect игнорируется. Почему это важно?
// Ряд контролов WPF, унаследованных от Selector, форсируют
// выбор добавленного объекта, когда SelectedItem содержит null.
// Это приводит к неожиданным событиям OnActiveChanged, а также
// может нарушить синхронизацию между потребителями коннектора
// и пользовательским интерфейсом.
var connected1 = new object();
var connected2 = new object();
var connected3 = new object();
IItemsPlacementConnector connector = this.CreateTestObject();
connector.Connect(connected1);
connector.Connect(connected2);
connector.Views.CollectionChanged += (sender, e) =>
{
((ICollectionView)sender).MoveCurrentToFirst();
};
connector.ActiveChanged += (sender, e) =>
{
Assert.Fail("Вызвано событие ActiveChanged");
};
connector.Connect(connected3);
}
public void RaisesActiveChangedWhenActiveAssigned()
{
var connected1 = new object();
var connected2 = new object();
IItemsPlacementConnector connector = this.CreateTestObject();
connector.Connect(connected1);
connector.Connect(connected2);
ActiveChangedEventArgs args = null;
connector.ActiveChanged += (sender, e) => args = e;
connector.Active = connected1;
Assert.IsNull(args.OldValue);
Assert.AreEqual(connected1, args.NewValue);
connector.Active = connected2;
Assert.AreEqual(connected1, args.OldValue);
Assert.AreEqual(connected2, args.NewValue);
connector.Active = null;
Assert.AreEqual(connected2, args.OldValue);
Assert.IsNull(args.NewValue);
}
public void ExposesConnectedInConnected()
{
var connected1 = new object();
var connected2 = new object();
IItemsPlacementConnector connector = this.CreateTestObject();
connector.Connect(connected1);
connector.Connect(connected2);
Assert.IsTrue(connector.Connected.Contains(connected1));
Assert.IsTrue(connector.Connected.Contains(connected2));
}
public void RemovesDisconnectedFromConnected()
{
var connected1 = new object();
var connected2 = new object();
IItemsPlacementConnector connector = this.CreateTestObject();
connector.Connect(connected1);
connector.Connect(connected2);
connector.Disconnect(connected2);
Assert.IsTrue(connector.Connected.Contains(connected1));
Assert.IsFalse(connector.Connected.Contains(connected2));
}
public void ExposesViewFromDragDropData()
{
var connected = new object();
var view = Substitute.For <IDisposable>();
this._connectedDragDrop.IsDragging(connected).Returns(true);
this._connectedDragDrop.GetData(ConnectedDragDropKeys.UriConnectedView).Returns(view);
IItemsPlacementConnector connector = this.CreateTestObject();
connector.Connect(connected);
Assert.IsTrue(connector.Views.Contains(view));
this._viewMatcher.DidNotReceiveWithAnyArgs().Match(null);
}
public void MovesConnectedWithinConnected()
{
var connected1 = new object();
var connected2 = new object();
var connected3 = new object();
IItemsPlacementConnector connector = this.CreateTestObject();
connector.Connect(connected1);
connector.Connect(connected2);
connector.Connect(connected3);
connector.MoveConnected(connected1, 2);
Assert.AreEqual(2, connector.Connected.ToList().IndexOf(connected1));
}
public void DoesntRaiseActiveChangedWhenTheSameActiveAssigned()
{
var connected = new object();
IItemsPlacementConnector connector = this.CreateTestObject();
connector.Connect(connected);
connector.Active = connected;
var wasRaised = false;
connector.ActiveChanged += (sender, e) => wasRaised = true;
connector.Active = connected;
Assert.IsFalse(wasRaised);
}
public void DoesntConnectWhenMatchRaiseException()
{
this._viewMatcher.Match(null).ReturnsForAnyArgs(ci => { throw new Exception(); });
IItemsPlacementConnector connector = this.CreateTestObject();
try
{
var resolved = new object();
connector.Connect(resolved);
}
catch (Exception)
{
}
Assert.IsFalse(connector.Connected.Any());
Assert.IsTrue(connector.Views.IsEmpty);
Assert.IsTrue(connector.IsPlacementEmpty);
}
public void ExposesAssignedActiveAndItsView()
{
var connected1 = new object();
var connected2 = new object();
var view1 = new object();
var view2 = new object();
var match1 = Substitute.For <IViewModelViewMatch>();
var match2 = Substitute.For <IViewModelViewMatch>();
match1.View.Returns(view1);
match2.View.Returns(view2);
this._viewMatcher.Match(connected1).Returns(match1);
this._viewMatcher.Match(connected2).Returns(match2);
IItemsPlacementConnector connector = this.CreateTestObject();
connector.Connect(connected1);
connector.Connect(connected2);
Assert.IsNull(connector.Active);
Assert.IsNull(connector.Views.CurrentItem);
connector.Active = connected1;
Assert.AreEqual(connected1, connector.Active);
Assert.AreEqual(view1, connector.Views.CurrentItem);
Assert.AreEqual(0, connector.Views.CurrentPosition);
connector.Active = connected2;
Assert.AreEqual(connected2, connector.Active);
Assert.AreEqual(view2, connector.Views.CurrentItem);
Assert.AreEqual(1, connector.Views.CurrentPosition);
connector.Active = null;
Assert.IsNull(connector.Active);
Assert.IsNull(connector.Views.CurrentItem);
Assert.AreEqual(-1, connector.Views.CurrentPosition);
}
public void DoesntRaiseConnectedChangedOnMoveConnectedToTheSameIndex()
{
var connected1 = new object();
var connected2 = new object();
IItemsPlacementConnector connector = this.CreateTestObject();
connector.Connect(connected1);
connector.Connect(connected2);
var wasRaised = false;
connector.ConnectedChanged += (sender, e) => wasRaised = true;
connector.MoveConnected(connected1, 0);
Assert.IsFalse(wasRaised);
connector.MoveConnected(connected2, 1);
Assert.IsFalse(wasRaised);
}
public void MakesActiveNullWhenActiveIsSingleAndHaveDisconnected()
{
var connected = new object();
IItemsPlacementConnector connector = this.CreateTestObject();
connector.Connect(connected);
connector.Active = connected;
ActiveChangedEventArgs args = null;
connector.ActiveChanged += (sender, e) => args = e;
connector.Disconnect(connected);
Assert.IsNull(connector.Active);
Assert.AreEqual(connected, args.OldValue);
Assert.IsNull(args.NewValue);
}
public void ActivatesConnectedWhenViewsCurrentChanged()
{
var connected1 = new object();
var connected2 = new object();
var view1 = new object();
var view2 = new object();
var match1 = Substitute.For <IViewModelViewMatch>();
var match2 = Substitute.For <IViewModelViewMatch>();
match1.View.Returns(view1);
match2.View.Returns(view2);
this._viewMatcher.Match(connected1).Returns(match1);
this._viewMatcher.Match(connected2).Returns(match2);
IItemsPlacementConnector connector = this.CreateTestObject();
connector.Connect(connected1);
connector.Connect(connected2);
ActiveChangedEventArgs args = null;
connector.ActiveChanged += (sender, e) => args = e;
connector.Views.MoveCurrentTo(view2);
Assert.AreEqual(connected2, connector.Active);
Assert.IsNull(args.OldValue);
Assert.AreEqual(connected2, args.NewValue);
connector.Views.MoveCurrentTo(view1);
Assert.AreEqual(connected1, connector.Active);
Assert.AreEqual(connected2, args.OldValue);
Assert.AreEqual(connected1, args.NewValue);
connector.Views.MoveCurrentTo(null);
Assert.IsNull(connector.Active);
Assert.AreEqual(connected1, args.OldValue);
Assert.IsNull(args.NewValue);
}
public void RaisesConnectedChangedOnMoveConnected()
{
var connected1 = new object();
var connected2 = new object();
IItemsPlacementConnector connector = this.CreateTestObject();
connector.Connect(connected1);
connector.Connect(connected2);
ConnectedChangedEventArgs args = null;
connector.ConnectedChanged += (sender, e) => args = e;
connector.MoveConnected(connected1, 1);
Assert.AreEqual(ConnectedChangedAction.Move, args.Action);
Assert.AreEqual(connected1, args.Changed);
connector.MoveConnected(connected2, 1);
Assert.AreEqual(ConnectedChangedAction.Move, args.Action);
Assert.AreEqual(connected2, args.Changed);
}
public void ExposesConnectedAsViewWhenViewModelHasNoMatchedView()
{
var connected1 = new object();
var connected2 = new object();
var view1 = new object();
var match1 = Substitute.For <IViewModelViewMatch>();
match1.View.Returns(view1);
this._viewMatcher.Match(connected1).Returns(match1);
this._viewMatcher.Match(connected2).Returns((IViewModelViewMatch)null);
IItemsPlacementConnector connector = this.CreateTestObject();
connector.Connect(connected1);
connector.Connect(connected2);
Assert.IsFalse(connector.Views.Contains(connected1));
Assert.IsTrue(connector.Views.Contains(connected2));
}
public void RaisesViewsCollectionChangedOnMoveConnected()
{
var connected1 = new object();
var connected2 = new object();
var view1 = new object();
var view2 = new object();
var match1 = Substitute.For <IViewModelViewMatch>();
var match2 = Substitute.For <IViewModelViewMatch>();
match1.View.Returns(view1);
match2.View.Returns(view2);
this._viewMatcher.Match(connected1).Returns(match1);
this._viewMatcher.Match(connected2).Returns(match2);
IItemsPlacementConnector connector = this.CreateTestObject();
connector.Connect(connected1);
connector.Connect(connected2);
NotifyCollectionChangedEventArgs args = null;
connector.Views.CollectionChanged += (sender, e) => args = e;
connector.MoveConnected(connected1, 1);
Assert.AreEqual(NotifyCollectionChangedAction.Move, args.Action);
Assert.AreEqual(1, args.NewStartingIndex);
CollectionAssert.Contains(args.NewItems, view1);
connector.MoveConnected(connected2, 1);
Assert.AreEqual(NotifyCollectionChangedAction.Move, args.Action);
Assert.AreEqual(1, args.NewStartingIndex);
CollectionAssert.Contains(args.NewItems, view2);
}
public MainWindowViewModel(Func <IItemsPlacementConnector> itemsPlacementConnectorFactory, IShell shell)
{
this._figurePlacementConnector = itemsPlacementConnectorFactory();
this._shell = shell;
this._shell.AddUriPlacementResolver(this);
this.SquareLength = 125;
this.SquareBackground = "DeepSkyBlue";
this.CircleDiameter = 150;
this.CircleBackground = "Lime";
this.AddSquareCommand = new DelegateCommand(() =>
{
var uri = ShellUriBuilder.StartUri()
.Placement("figures")
.Module("main")
.Item("square")
.Parameter("length", this.SquareLength.ToString())
.Parameter("background", this.SquareBackground)
.End();
this._shell.Resolve(uri).Open();
});
this.AddCircleCommand = new DelegateCommand(() =>
{
var uri = ShellUriBuilder.StartUri()
.Placement("figures")
.Module("main")
.Item("circle")
.Parameter("diameter", this.CircleDiameter.ToString())
.Parameter("background", this.CircleBackground)
.End();
this._shell.Resolve(uri).Open();
});
}
public void ActivatesPreviousWhenActiveIsLastAndHaveDisconnected()
{
var connected1 = new object();
var connected2 = new object();
var connected3 = new object();
IItemsPlacementConnector connector = this.CreateTestObject();
connector.Connect(connected1);
connector.Connect(connected2);
connector.Connect(connected3);
connector.Active = connected3;
ActiveChangedEventArgs args = null;
connector.ActiveChanged += (sender, e) => args = e;
connector.Disconnect(connected3);
Assert.AreEqual(connected2, connector.Active);
Assert.AreEqual(connected3, args.OldValue);
Assert.AreEqual(connected2, args.NewValue);
}
