public void OnDispatcherTest()
{
using (var dispatcher = new TestDispatcherContext())
{
bool propertyChangedCalled = false;
bool collectionChangedCalled = false;
Dispatcher.CurrentDispatcher.IsNot(dispatcher.Dispatcher);
var source = new ObservableCollection <int>();
var result = ViewModelHelper.CreateReadOnlyDispatcherCollection <int, int>(
source,
i => i * i,
dispatcher.Dispatcher);
result.PropertyChanged += (sender, e) =>
{
propertyChangedCalled = true;
Dispatcher.CurrentDispatcher.Is(dispatcher.Dispatcher);
};
result.CollectionChanged += (sender, e) =>
{
collectionChangedCalled = true;
Dispatcher.CurrentDispatcher.Is(dispatcher.Dispatcher);
};
source.Add(1);
propertyChangedCalled.Is(true);
collectionChangedCalled.Is(true);
}
}
public void OnDispatcherTest()
{
using (var dispatcher = new TestDispatcherContext())
{
bool propertyChangedCalled = false;
bool collectionChangedCalled = false;
Dispatcher.CurrentDispatcher.IsNot(dispatcher.Dispatcher);
var source = new ObservableCollection<int>();
var result = ViewModelHelper.CreateReadOnlyDispatcherCollection<int, int>(
source,
i => i * i,
dispatcher.Dispatcher);
result.PropertyChanged += (sender, e) =>
{
propertyChangedCalled = true;
Dispatcher.CurrentDispatcher.Is(dispatcher.Dispatcher);
};
result.CollectionChanged += (sender, e) =>
{
collectionChangedCalled = true;
Dispatcher.CurrentDispatcher.Is(dispatcher.Dispatcher);
};
source.Add(1);
propertyChangedCalled.Is(true);
collectionChangedCalled.Is(true);
}
}
public void LinkTest()
{
using (var dispatcher = new TestDispatcherContext())
{
var disposedCount = 0;
//------------------Init
var source = new ObservableCollection<int>() { 9, 8, 7 };
var result = ViewModelHelper.CreateReadOnlyDispatcherCollection<int, TestViewModel>(
source,
i => new TestViewModel(i * i,() => disposedCount++),
dispatcher.Dispatcher);
result.Count().Is(3);
result[0].Number.Is(81);
result[1].Number.Is(64);
result[2].Number.Is(49);
//------------------Add
source.Add(1);
result.Count().Is(4);
result[3].Number.Is(1);
//------------------Add & Remove
source.Add(3);
source.Add(4);
source.Add(5);
source.Add(6);
source.Remove(5);
result.Count().Is(7);
result[4].Number.Is(9);
result[5].Number.Is(16);
result[6].Number.Is(36);
//------------------Replace
source[2] = 10;
result.Count().Is(7);
result[2].Number.Is(100);
//------------------Clear
source.Clear();
result.Any().Is(false);
//------------------Dispose
result.Dispose();
source.Add(1);
result.Any().Is(false);
disposedCount.Is(9);
}
}
public void LinkTest()
{
using (var dispatcher = new TestDispatcherContext())
{
var disposedCount = 0;
//------------------Init
var source = new ObservableCollection <int>()
{
9, 8, 7
};
var result = ViewModelHelper.CreateReadOnlyDispatcherCollection <int, TestViewModel>(
source,
i => new TestViewModel(i * i, () => disposedCount++),
dispatcher.Dispatcher);
result.Count().Is(3);
result[0].Number.Is(81);
result[1].Number.Is(64);
result[2].Number.Is(49);
//------------------Add
source.Add(1);
result.Count().Is(4);
result[3].Number.Is(1);
//------------------Add & Remove
source.Add(3);
source.Add(4);
source.Add(5);
source.Add(6);
source.Remove(5);
result.Count().Is(7);
result[4].Number.Is(9);
result[5].Number.Is(16);
result[6].Number.Is(36);
//------------------Replace
source[2] = 10;
result.Count().Is(7);
result[2].Number.Is(100);
//------------------Clear
source.Clear();
result.Any().Is(false);
//------------------Dispose
result.Dispose();
source.Add(1);
result.Any().Is(false);
disposedCount.Is(9);
}
}