public void Test_WeakCommandBinding_EnableProperty_Expression()
{
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 <TestView>(i => i.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);
}
public void Test_BindingEngine_NotifyBinding()
{
var viewModel = new TestViewModel();
var view = new TestView();
int changedCount = 0;
BindingEngine.SetNotifyBinding(viewModel, o => o.Age, view, null)
.Initialize <WeakNotifyBinding>()
.AttachSourceEvent("TestViewEvent")
.OfType <WeakNotifyBinding>()
.SetSourceChanged <WeakNotifyBinding>((source, args) => { changedCount++; });
Assert.AreEqual(0, changedCount);
view.RaiseTestViewEvent();
Assert.AreEqual(1, changedCount);
BindingEngine.SetNotifyBinding(viewModel, o => o.Age, view, null)
.Initialize <WeakNotifyBinding>()
.AttachSourceEvent("TestViewEvent")
.OfType <WeakNotifyBinding>()
.SetSourceChanged <WeakNotifyBinding>((source, args) => { changedCount++; });
view.RaiseTestViewEvent();
Assert.AreEqual(2, changedCount);
}
public void Test_WeakCommandBinding_RemoveEnableProperty()
{
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("Enable");
Assert.IsTrue(view.Enable);
Assert.AreEqual(0, viewModel.Age);
view.RaiseTestViewEvent();
Assert.AreEqual(1, viewModel.Age);
Assert.IsTrue(view.Enable);
weakCommandBinding.RemoveEnableProperty("Enable");
view.RaiseTestViewEvent();
Assert.IsTrue(view.Enable);
}
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_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_WeakCommandBinding_CanExecute()
{
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);
view.RaiseTestViewEvent();
Assert.AreEqual(2, viewModel.Age);
view.RaiseTestViewEvent();
Assert.AreEqual(2, viewModel.Age);
}
public void Test_WeakCommandBinding_UnWatch()
{
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(viewModel, "Age");
commandBinding.Watch(viewModel, "Age");
Assert.IsTrue(view.Enable);
Assert.AreEqual(0, viewModel.Age);
view.RaiseTestViewEvent();
Assert.AreEqual(1, viewModel.Age);
Assert.IsTrue(view.Enable);
Exception exception = null;
try
{
commandBinding.Watch(null, "Age");
}
catch (ArgumentNullException e)
{
exception = e;
}
Assert.IsNotNull(exception);
viewModel.Age++;
Assert.IsFalse(view.Enable);
viewModel.Age--;
Assert.IsTrue(view.Enable);
commandBinding.UnWatch("Age");
viewModel.Age++;
Assert.IsTrue(view.Enable);
commandBinding.Watch(viewModel, "Age");
Assert.IsFalse(view.Enable);
commandBinding.UnWatch(viewModel, "Age");
viewModel.Age--;
Assert.IsFalse(view.Enable);
}
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_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_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_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_MemoryLeak_WeakBinding_AttachEvent_2()
{
var viewModel = new TestViewModel();
var viewModel2 = new TestViewModel2();
var reference = new WeakReference(viewModel2);
var reference2 = new WeakReference(viewModel);
var view = new TestView();
var reference3 = new WeakReference(view);
WeakBinding binding = new WeakPropertyBinding(viewModel2, "Name", viewModel, "Name")
.Initialize <WeakPropertyBinding>()
.SetMode(BindMode.TwoWay)
.AttachTargetEvent(view, "TestViewEvent");
viewModel.Name = Name1;
Assert.AreEqual(viewModel2.Name, Name1);
viewModel2.Name = Name2;
Assert.AreNotEqual(viewModel.Name, Name2);
view.RaiseTestViewEvent();
Assert.AreEqual(viewModel.Name, Name2);
view = null;
GC.Collect();
Assert.IsFalse(reference3.IsAlive);
viewModel2 = null;
GC.Collect();
Assert.IsFalse(reference.IsAlive);
viewModel = null;
GC.Collect();
Assert.IsFalse(reference2.IsAlive);
GC.KeepAlive(binding);
}
