public void ManagerShouldObserveExplicitDataContext()
{
bool isInvoked = false;
var o = new object();
var context = new ExplicitDataContext { DataContext = o };
var providerMock = new ObserverProviderMock();
var manager = CreateContextManager(observerProvider: providerMock);
providerMock.Observe = (o1, path, arg3) =>
{
o1.ShouldEqual(context);
path.Path.ShouldEqual(AttachedMemberConstants.DataContext);
arg3.ShouldBeTrue();
isInvoked = true;
return new ObserverMock();
};
manager.GetBindingContext(context);
isInvoked.ShouldBeTrue();
}
public void ParserShouldParseElementSourceExpression3()
{
bool isInvoked = false;
const string targetPath = "Text";
const string sourcePath = "StringProperty";
const string sourceName = "type";
const string binding = "Text $Element(type).StringProperty";
var target = new BindingSourceModel();
var relativeObj = new BindingSourceModel();
IEventListener eventListener = null;
var memberMock = new BindingMemberInfoMock
{
TryObserveMember = (o, listener) =>
{
eventListener = listener;
return null;
}
};
var providerMock = new ObserverProviderMock
{
Observe = (o, p, arg3) => new MultiPathObserver(o, p, arg3)
};
var treeManagerMock = new VisualTreeManagerMock
{
FindByName = (o, s) =>
{
o.ShouldEqual(target);
s.ShouldEqual(sourceName);
isInvoked = true;
return relativeObj;
},
GetRootMember = type => memberMock
};
IBindingParser bindingParser = CreateBindingParser(treeManagerMock, null, providerMock);
var context = new BindingBuilder(bindingParser.Parse(binding, EmptyContext, target, null).Single());
IBindingPath path = context.GetData(BindingBuilderConstants.TargetPath);
path.Path.ShouldEqual(targetPath);
var sources = context.GetData(BindingBuilderConstants.Sources);
IBindingSource source = sources.Single().Invoke(context);
source.Path.Path.ShouldContain(sourcePath);
isInvoked.ShouldBeTrue();
isInvoked = false;
eventListener.ShouldNotBeNull();
eventListener.Handle(this, EventArgs.Empty);
isInvoked.ShouldBeTrue();
}
public void ManagerShouldRaiseEventWhenObserverValueChanged()
{
bool isInvoked = false;
var o = new object();
var context = new ExplicitDataContext { DataContext = o };
var providerMock = new ObserverProviderMock();
var observerMock = new ObserverMock();
var manager = CreateContextManager(observerProvider: providerMock);
providerMock.Observe = (o1, path, arg3) => observerMock;
var bindingContext = manager.GetBindingContext(context);
bindingContext.ValueChanged += (sender, args) => isInvoked = true;
isInvoked.ShouldBeFalse();
observerMock.RaiseValueChanged();
isInvoked.ShouldBeTrue();
}