public void Test_WeakNotify_OneWay()
{
var viewModel = new TestViewModel();
var view = new TestView();
int changedCount = 0;
BindingValueChangedHandler changeHandler = (source, args) =>
{
changedCount++;
Assert.IsTrue(args.Data != null);
Assert.IsNull(args.OldValue);
Assert.IsNull(args.NewValue);
};
new WeakNotifyBinding(viewModel, "Age", view, null)
.Initialize<WeakNotifyBinding>()
.AttachSourceEvent("TestViewEvent")
.OfType<WeakNotifyBinding>().SetSourceChanged(changeHandler);
Assert.AreEqual(0, changedCount);
GC.Collect();
view.RaiseTestViewEvent();
Assert.AreEqual(1, changedCount);
}
public void Test_WeakCommandBinding_CanExecuteChangedCallback()
{
var viewModel = new TestViewModel();
var view = new TestView();
Assert.IsFalse(view.Enable);
bool isEnable = false;
WeakCommandBinding commandBinding = new WeakCommandBinding(view, null, viewModel, "AddAgeCommand")
.Initialize<WeakCommandBinding>()
.AttachTargetEvent("TestViewEvent")
.OfType<WeakCommandBinding>()
.AddEnableProperty("Enable")
.Watch("Age")
.SetCanExecuteChanged((sender, args) => { isEnable = args.CanExecute; });
Assert.IsTrue(view.Enable);
Assert.IsTrue(isEnable);
Assert.AreEqual(0, viewModel.Age);
view.RaiseTestViewEvent();
Assert.AreEqual(1, viewModel.Age);
Assert.IsTrue(view.Enable);
Assert.IsTrue(isEnable);
commandBinding.SetCanExecuteChanged(null);
viewModel.Age++;
Assert.IsFalse(view.Enable);
Assert.IsTrue(isEnable);
}
public void Test_WeakSource_SetBinding()
{
var viewModel = new TestViewModel();
var view = new TestView();
var ws = new WeakTarget(view);
ws.SetBinding<WeakPropertyBinding>("Text1", viewModel, "Name");
viewModel.Name = Name1;
Assert.AreEqual(view.Text1, Name1);
NotSupportedException exception = null;
try
{
ws.SetBinding<WeakNotifyBinding>("Text1", viewModel, "Name");
}
catch(NotSupportedException e)
{
exception = e;
}
Assert.IsNotNull(exception);
}
public void Test_WeakBindEvent_NormalProperty()
{
var viewModel = new TestViewModel();
var view = new TestView();
var propertyBinding = new WeakPropertyBinding(view, "Text1", viewModel, "Name")
.Initialize<WeakPropertyBinding>();
var weakEvent = new WeakEvent(viewModel);
Assert.IsFalse(weakEvent.IsAttached);
}
public void Test_WeakCommandBinding_Basic()
{
var viewModel = new TestViewModel();
var view = new TestView();
new WeakCommandBinding(view, null, viewModel, "AddAgeCommand")
.Initialize<WeakCommandBinding>()
.AttachTargetEvent("TestViewEvent");
Assert.AreEqual(0, viewModel.Age);
view.RaiseTestViewEvent();
Assert.AreEqual(1, viewModel.Age);
}
public void Test_WeakBinding_AttachSourceEvent()
{
var viewModel = new TestViewModel();
var view = new TestView();
new WeakPropertyBinding(view, "Text1", viewModel, "Name")
.Initialize<WeakPropertyBinding>()
.AttachSourceEvent("TestViewModelEvent");
viewModel.Name = Name1;
Assert.AreNotEqual(view.Text1, Name1);
viewModel.RaiseTestViewModelEvent();
Assert.AreEqual(view.Text1, Name1);
}
public void Test_WeakSource_ClearBinding()
{
var viewModel = new TestViewModel();
var view = new TestView();
var ws = new WeakTarget(view);
ws.SetBinding<WeakPropertyBinding>("Text1", viewModel, "Name");
viewModel.Name = Name1;
Assert.AreEqual(view.Text1, Name1);
ws.ClearBinding("Text1", viewModel, "Name");
viewModel.Name = Name2;
Assert.AreNotEqual(view.Text2, Name2);
}
public void Test_WeakCollectionBinding_CollecionHandler()
{
var viewModel = new TestViewModel();
var view = new TestView();
new WeakCollectionBinding(view, "CollectionNames", viewModel, "TestViewModelCollection")
.Initialize<WeakCollectionBinding>()
.SetTargetCollectionHandler(new TestDataCollectionHandler());
view.CollectionNames = new List<string>();
var collections = new ObservableCollection<TestViewModel2>();
viewModel.TestViewModelCollection = collections;
collections.Add(new TestViewModel2 { Name = Name1 });
Assert.AreEqual(1, view.CollectionNames.Count);
Assert.AreEqual(Name1, view.CollectionNames[0]);
collections.RemoveAt(0);
Assert.AreEqual(0, view.CollectionNames.Count);
collections.Add(new TestViewModel2 { Name = Name2 });
collections.Clear();
Assert.AreEqual(0, view.CollectionNames.Count);
viewModel = new TestViewModel();
view = new TestView();
new WeakCollectionBinding(viewModel, "TestViewModelCollection", view, "CollectionNames")
.Initialize<WeakCollectionBinding>()
.SetMode<WeakCollectionBinding>(BindMode.OneWayToSource)
.SetSourceCollectionHandler(new TestDataCollectionHandler());
view.CollectionNames = new List<string>();
collections = new ObservableCollection<TestViewModel2>();
viewModel.TestViewModelCollection = collections;
collections.Add(new TestViewModel2 { Name = Name1 });
Assert.AreEqual(1, view.CollectionNames.Count);
Assert.AreEqual(Name1, view.CollectionNames[0]);
collections.RemoveAt(0);
Assert.AreEqual(0, view.CollectionNames.Count);
collections.Add(new TestViewModel2 { Name = Name2 });
collections.Clear();
Assert.AreEqual(0, view.CollectionNames.Count);
}
public void Test_WeakNotify_OneWayToSource()
{
var viewModel = new TestViewModel();
var view = new TestView();
int changedCount = 0;
new WeakNotifyBinding(view, null, viewModel, "Age")
.Initialize<WeakNotifyBinding>()
.AttachTargetEvent("TestViewEvent")
.OfType<WeakNotifyBinding>()
.SetTargetChanged<WeakNotifyBinding>((source, args) => { changedCount++; });
Assert.AreEqual(0, changedCount);
view.RaiseTestViewEvent();
Assert.AreEqual(1, changedCount);
}
public void Test_WeakSource_ClearAllBindings()
{
var viewModel = new TestViewModel();
var view = new TestView();
var ws = new WeakTarget(view);
ws.SetBinding<WeakPropertyBinding>( "Text1", viewModel,"Name");
ws.SetBinding<WeakPropertyBinding>("ValueInt", viewModel, "Age");
viewModel.Name = Name1;
Assert.AreEqual(view.Text1, Name1);
viewModel.Age = 2;
Assert.AreEqual(view.ValueInt, 2);
ws.ClearBindings();
viewModel.Name = Name2;
viewModel.Age = 3;
Assert.AreNotEqual(view.Text1, Name2);
Assert.AreNotEqual(view.ValueInt, Name2);
}
public void Test_WeakNotify_TwoWay()
{
var button = new Button();
var view = new TestView();
int changedCount = 0;
int targetCount = 0;
new WeakNotifyBinding(view, null, button, null)
.Initialize<WeakNotifyBinding>()
.AttachTargetEvent("TestViewEvent")
.AttachSourceEvent("Click")
.OfType<WeakNotifyBinding>()
.SetTargetChanged((source, args) => { changedCount++; })
.SetSourceChanged((source, args) => { targetCount++; });
Assert.AreEqual(0, changedCount);
view.RaiseTestViewEvent();
Assert.AreEqual(1, changedCount);
button.PerformClick();
Assert.AreEqual(1, targetCount);
}
public void Test_WeakBinding_GetBindSource()
{
var viewModel = new TestViewModel();
var view = new TestView();
WeakBinding binding = new WeakPropertyBinding(viewModel, "Name", view, "Text1")
.Initialize<WeakPropertyBinding>()
.SetMode(BindMode.TwoWay)
.AttachSourceEvent(typeof(TestView), "StaticTestViewEvent");
viewModel.Name = Name1;
Assert.AreEqual(view.Text1, Name1);
view.Text1 = Name2;
Assert.AreNotEqual(viewModel.Name, Name2);
TestView.RaiseStaticTestViewEvent();
Assert.AreEqual(viewModel.Name, Name2);
BindContext context = binding.GetBindContext(viewModel, "Name");
Assert.AreEqual(binding.BindTarget, context);
BindContext source2 = binding.GetBindContext(view, "Text1");
Assert.AreEqual(binding.BindSource, source2);
}
public void Test_WeakBinding_MemoryLeak()
{
var viewModel = new TestViewModel();
var view = new TestView();
int changed = 0;
WeakPropertyBinding binding = new WeakPropertyBinding(view, "Text1", viewModel, "Name")
.Initialize<WeakPropertyBinding>()
.SetMode(BindMode.OneWay)
.AttachTargetEvent("TestViewEvent")
.SetTargetChanged<WeakPropertyBinding>((sender, args) => { changed++; });
viewModel.Name = Name1;
Assert.AreEqual(Name1, view.Text1);
Assert.AreEqual(1, changed);
viewModel.Name = Name2;
Assert.AreEqual(Name2, view.Text1);
Assert.AreEqual(2, changed);
view = null;
GC.Collect();
viewModel.Name = Name1;
Assert.AreEqual(2, changed);
}
public void Test_WeakBinding_AttachTargetEvent_3()
{
var viewModel = new TestViewModel();
var view = new TestView();
new WeakPropertyBinding(view, "Text1", viewModel, "Name")
.Initialize<WeakPropertyBinding>()
.SetMode(BindMode.TwoWay)
.AttachTargetEvent(typeof(TestView), "StaticTestViewEvent");
viewModel.Name = Name1;
Assert.AreEqual(view.Text1, Name1);
view.Text1 = Name2;
Assert.AreNotEqual(viewModel.Name, Name2);
TestView.RaiseStaticTestViewEvent();
Assert.AreEqual(viewModel.Name, Name2);
}
public void Test_WeakBinding_DeActive()
{
var viewModel = new TestViewModel();
var view = new TestView();
WeakBinding binding = new WeakPropertyBinding(view, "Text1", viewModel, "Name")
.Initialize<WeakPropertyBinding>()
.SetMode(BindMode.OneWay)
.AttachTargetEvent("TestViewEvent");
viewModel.Name = Name1;
binding.DeActivate();
viewModel.Name = Name2;
Assert.AreNotEqual(view.Text1, Name2);
binding.Activate();
Assert.AreEqual(view.Text1, Name2);
}
public void Test_WeakCommandBinding_RemoveEnableProperty_Expression()
{
var viewModel = new TestViewModel();
var view = new TestView();
Assert.IsFalse(view.Enable);
WeakCommandBinding weakCommandBinding = new WeakCommandBinding(view, null, viewModel, "AddAgeCommand")
.Initialize<WeakCommandBinding>()
.AttachTargetEvent("TestViewEvent")
.OfType<WeakCommandBinding>()
.AddEnableProperty<TestView>(i => i.Enable);
Assert.IsTrue(view.Enable);
Assert.AreEqual(0, viewModel.Age);
view.RaiseTestViewEvent();
Assert.AreEqual(1, viewModel.Age);
Assert.IsTrue(view.Enable);
weakCommandBinding.RemoveEnableProperty<TestView>(i => i.Enable);
view.RaiseTestViewEvent();
Assert.IsTrue(view.Enable);
}
public void Test_WeakBinding_AttachTargetEvent_2()
{
var viewModel = new TestViewModel();
var view = new TestView();
var button = new Button();
new WeakPropertyBinding(view, "Text1", viewModel, "Name")
.Initialize<WeakPropertyBinding>()
.SetMode(BindMode.TwoWay)
.AttachTargetEvent(button, null, "Click");
viewModel.Name = Name1;
Assert.AreEqual(view.Text1, Name1);
view.Text1 = Name2;
Assert.AreNotEqual(viewModel.Name, Name2);
button.PerformClick();
Assert.AreEqual(viewModel.Name, Name2);
}
public void Test_BindingEngine_GenericBinding()
{
var viewModel = new TestViewModel();
var view = new TestView();
BindingEngine.SetBinding<WeakPropertyBinding>(view, "Text1", viewModel, "Name")
.SetMode(BindMode.TwoWay)
.AttachTargetEvent("TestViewEvent");
viewModel.Name = Name1;
Assert.AreEqual(view.Text1, Name1);
view.Text1 = Name2;
Assert.AreNotEqual(viewModel.Name, Name2);
view.RaiseTestViewEvent();
Assert.AreEqual(viewModel.Name, Name2);
}
public void Test_BindingEngine_PropertyBinding()
{
var viewModel = new TestViewModel();
var view = new TestView();
var binding = BindingEngine.SetPropertyBinding(view, "Text1", viewModel, "Name")
.SetMode(BindMode.TwoWay)
.AttachTargetEvent("TestViewEvent");
Assert.AreEqual("Name", binding.SourceProperty);
Assert.AreEqual("Text1", binding.TargetProperty);
viewModel.Name = Name1;
Assert.AreEqual(Name1, view.Text1);
view.Text1 = Name2;
Assert.AreNotEqual(Name2, viewModel.Name);
view.RaiseTestViewEvent();
Assert.AreEqual(Name2, viewModel.Name);
}
public void Test_WeakBinding_AttachSourceEvent_2()
{
var viewModel = new TestViewModel();
var view = new TestView();
var button = new Button();
WeakBinding binding = new WeakPropertyBinding(viewModel, "Name", view, "Text1")
.Initialize<WeakPropertyBinding>()
.SetMode(BindMode.OneWay)
.AttachSourceEvent(button, "Click");
view.Text1 = Name1;
Assert.AreNotEqual(viewModel.Name, Name1);
button.PerformClick();
Assert.AreEqual(viewModel.Name, Name1);
binding.Clear();
viewModel = new TestViewModel();
view = new TestView();
button = new Button();
new WeakPropertyBinding(viewModel, "Name", view, "Text1")
.Initialize<WeakPropertyBinding>()
.SetMode(BindMode.OneWay)
.AttachSourceEvent(button, null, "Click");
view.Text1 = Name1;
Assert.AreNotEqual(viewModel.Name, Name1);
button.PerformClick();
Assert.AreEqual(viewModel.Name, Name1);
}
public void Test_WeakCollectionBinding_OneWayToTarget()
{
var viewModel = new TestViewModel();
var view = new TestView();
new WeakCollectionBinding(viewModel, "TestViewModelCollection", view, "TestViewModelCollections")
.Initialize<WeakCollectionBinding>()
.SetMode(BindMode.OneWayToSource);
view.TestViewModelCollections = new List<TestViewModel2>();
var collections = new ObservableCollection<TestViewModel2>();
viewModel.TestViewModelCollection = collections;
var viewModel2 = new TestViewModel2();
collections.Add(viewModel2);
collections.Add(new TestViewModel2());
Assert.AreEqual(2, view.TestViewModelCollections.Count);
Assert.AreEqual(viewModel2, view.TestViewModelCollections[0]);
collections.RemoveAt(0);
Assert.AreEqual(1, view.TestViewModelCollections.Count);
collections.Clear();
Assert.AreEqual(0, view.TestViewModelCollections.Count);
}
public void Test_WeakCommandBinding_Parameter_2()
{
var viewModel = new TestViewModel();
var view = new TestView();
new WeakCommandBinding(view, null, viewModel, "SetAgeCommand")
.Initialize<WeakCommandBinding>()
.AttachTargetEvent("TestViewEvent")
.OfType<WeakCommandBinding>()
.SetParameter(2, null);
Assert.AreEqual(0, viewModel.Age);
view.RaiseTestViewEvent();
Assert.AreEqual(2, viewModel.Age);
}
public void Test_WeakCommandBinding_UnWatch_Expression()
{
var viewModel = new TestViewModel();
var view = new TestView();
Assert.IsFalse(view.Enable);
WeakCommandBinding commandBinding = new WeakCommandBinding(view, null, viewModel, "AddAgeCommand")
.Initialize<WeakCommandBinding>()
.AttachTargetEvent("TestViewEvent")
.OfType<WeakCommandBinding>()
.AddEnableProperty("Enable")
.Watch<TestViewModel>(i => i.Age);
Assert.IsTrue(view.Enable);
Assert.AreEqual(0, viewModel.Age);
view.RaiseTestViewEvent();
Assert.AreEqual(1, viewModel.Age);
Assert.IsTrue(view.Enable);
viewModel.Age++;
Assert.IsFalse(view.Enable);
viewModel.Age--;
Assert.IsTrue(view.Enable);
commandBinding.UnWatch<TestViewModel>(null);
commandBinding.UnWatch(null);
Exception exception = null;
try
{
commandBinding.UnWatch(null, null);
}
catch (ArgumentNullException e)
{
exception = e;
}
Assert.IsNotNull(exception);
commandBinding.UnWatch<TestViewModel>(o => o.Age);
viewModel.Age++;
Assert.IsTrue(view.Enable);
}
public void Test_BindingEngine_PropertyBinding_Expression()
{
var viewModel = new TestViewModel();
var view = new TestView();
BindingEngine.SetPropertyBinding(view, o => o.Text1, viewModel, i => i.Name)
.SetMode(BindMode.TwoWay)
.AttachTargetEvent("TestViewEvent");
viewModel.Name = Name1;
Assert.AreEqual(view.Text1, Name1);
view.Text1 = Name2;
Assert.AreNotEqual(viewModel.Name, Name2);
view.RaiseTestViewEvent();
Assert.AreEqual(viewModel.Name, Name2);
}
public void Test_WeakBinding_Update()
{
var viewModel = new TestViewModel();
var view = new TestView();
WeakBinding binding = new WeakPropertyBinding(view, "Text1", viewModel, "Name")
.Initialize<WeakPropertyBinding>()
.SetMode(BindMode.TwoWay)
.AttachTargetEvent("TestViewEvent");
viewModel.Name = Name1;
Assert.AreEqual(view.Text1, Name1);
view.Text1 = Name2;
Assert.AreNotEqual(viewModel.Name, Name2);
view.RaiseTestViewEvent();
Assert.AreEqual(viewModel.Name, Name2);
binding.Update("Text2", viewModel, "Name");
viewModel.Name = Name1;
Assert.AreNotEqual(view.Text1, Name1);
Assert.AreEqual(view.Text2, Name1);
}
public void Test_BindingEngine_CollectionBinding_Expression()
{
var viewModel = new TestViewModel();
var view = new TestView();
BindingEngine.SetCollectionBinding(view, o => o.TestViewModelCollections, viewModel,
i => i.TestViewModelCollection)
.Initialize<WeakCollectionBinding>();
view.TestViewModelCollections = new List<TestViewModel2>();
var collections = new ObservableCollection<TestViewModel2>();
viewModel.TestViewModelCollection = collections;
var viewModel2 = new TestViewModel2();
collections.Add(viewModel2);
collections.Add(new TestViewModel2());
Assert.AreEqual(2, view.TestViewModelCollections.Count);
Assert.AreEqual(viewModel2, view.TestViewModelCollections[0]);
collections.RemoveAt(0);
Assert.AreEqual(1, view.TestViewModelCollections.Count);
collections.Clear();
Assert.AreEqual(0, view.TestViewModelCollections.Count);
}
public void Test_BindingEngine_CommandBinding_Expression()
{
var viewModel = new TestViewModel();
var view = new TestView();
BindingEngine.SetCommandBinding(view, null, viewModel, i => i.AddAgeCommand)
.Initialize<WeakCommandBinding>()
.AttachTargetEvent("TestViewEvent");
Assert.AreEqual(0, viewModel.Age);
view.RaiseTestViewEvent();
Assert.AreEqual(1, viewModel.Age);
}
public void Test_BindingEngine_NotifyBinding_Expression()
{
var viewModel = new TestViewModel();
var view = new TestView();
int changedCount = 0;
BindingEngine.SetNotifyBinding(viewModel, "Age", view, null)
.Initialize<WeakNotifyBinding>()
.AttachSourceEvent("TestViewEvent")
.OfType<WeakNotifyBinding>().SetSourceChanged((source, args) => { changedCount++; });
Assert.AreEqual(0, changedCount);
view.RaiseTestViewEvent();
Assert.AreEqual(1, changedCount);
}
public void Test_WeakNotify_WeakReference()
{
var button = new Button();
var view = new TestView();
int changedCount = 0;
int targetCount = 0;
BindingValueChangedHandler sourceChanged = (source, args) => { changedCount++; };
BindingValueChangedHandler targetChanged = (source, args) => { targetCount++; };
new WeakNotifyBinding(view, null, button, null)
.Initialize<WeakNotifyBinding>()
.AttachTargetEvent("TestViewEvent")
.AttachSourceEvent("Click")
.OfType<WeakNotifyBinding>()
.SetTargetChanged(sourceChanged, true)
.SetSourceChanged(targetChanged, true);
Assert.AreEqual(0, changedCount);
view.RaiseTestViewEvent();
Assert.AreEqual(1, changedCount);
button.PerformClick();
Assert.AreEqual(1, targetCount);
sourceChanged = null;
GC.Collect();
view.RaiseTestViewEvent();
Assert.AreEqual(1, changedCount);
targetChanged = null;
GC.Collect();
button.PerformClick();
Assert.AreEqual(1, targetCount);
}
public void Test_WeakCommandBinding_EnableProperty()
{
var viewModel = new TestViewModel();
var view = new TestView();
Assert.IsFalse(view.Enable);
new WeakCommandBinding(view, null, viewModel, "AddAgeCommand")
.Initialize<WeakCommandBinding>()
.AttachTargetEvent("TestViewEvent")
.OfType<WeakCommandBinding>()
.AddEnableProperty("Enable");
Assert.IsTrue(view.Enable);
Assert.AreEqual(0, viewModel.Age);
view.RaiseTestViewEvent();
Assert.AreEqual(1, viewModel.Age);
Assert.IsTrue(view.Enable);
view.RaiseTestViewEvent();
Assert.AreEqual(2, viewModel.Age);
Assert.IsFalse(view.Enable);
view.RaiseTestViewEvent();
Assert.IsFalse(view.Enable);
Assert.AreEqual(2, viewModel.Age);
}
