public void Observable_EventsIn()
{
var npc = new NotifyPropertyChangedImpl();
var events = npc.EventsIn <EventArgs>().ToList();
Assert.True(events.Count == 1);
}
public void Observable_RemoveEventHandlers()
{
var npc = new NotifyPropertyChangedImpl();
npc.PropertyChanged += (sender, args) => { };
npc.PropertyChanged += (sender, args) => { };
Assert.Equal(2, npc.RemoveEventHandlers());
}
public void NotifyPropertyExtensions_OnPropertyChanged()
{
var npc = new NotifyPropertyChangedImpl();
string changedPropertyName = null;
using (npc.OnPropertyChanged().Subscribe(propertyChangedEventArgs => changedPropertyName = propertyChangedEventArgs.PropertyName))
{
npc.Name = "Dapplo";
Assert.Equal(nameof(npc.Name), changedPropertyName);
}
// Test if all registrations are gone
Assert.Equal(0, npc.RemoveEventHandlers());
}
public void Observable_ForEach()
{
string testValue = null;
var npc = new NotifyPropertyChangedImpl();
var handler = npc.OnPropertyChanged().Subscribe(e => testValue = e.PropertyName);
npc.Name = "Dapplo";
Assert.Equal(nameof(npc.Name), testValue);
testValue = null;
// Test after Unsubscribe
handler.Dispose();
npc.Name = "Dapplo2";
Assert.Null(testValue);
}
public async Task Observable_ToTask_ExceptionTest()
{
var npc = new NotifyPropertyChangedImpl();
var task = npc.OnPropertyChanged().FirstAsync(e => e.PropertyName.Contains("2")).Select <PropertyChangedEventArgs, bool>(e => throw new Exception("blub")).FirstAsync().ToTask();
npc.Name = "Dapplo";
await Task.Delay(100);
Assert.False(task.IsCanceled || task.IsCompleted || task.IsFaulted);
npc.Name2 = "Dapplo";
await Task.Delay(100);
Assert.True(task.IsFaulted);
}
public async Task Observable_EnumerableTest()
{
var npc = new NotifyPropertyChangedImpl();
var task = npc.OnPropertyChanged().FirstAsync(e => e.PropertyName.Contains("2")).ToTask();
npc.Name = "Dapplo";
await Task.Delay(100);
Assert.False(task.IsCanceled || task.IsCompleted || task.IsFaulted);
npc.Name2 = "Dapplo";
await Task.Delay(100);
Assert.True(task.IsCompleted);
}
public void TestAddOrUpdate_TryRemove()
{
var npc = new NotifyPropertyChangedImpl();
const string testKey = "One";
var ocd = new ObservableConcurrentDictionary <string, NotifyPropertyChangedImpl>();
ocd.AddOrUpdate(testKey, npc, (s, impl) => throw new InvalidOperationException());
// Register without doing, just to make sure we also test the event generation for now
ocd.CollectionChanged += (sender, args) =>
{
Log.Info().WriteLine($"Old location: {args.OldStartingIndex}");
};
var isNpcTriggered = false;
// Subscribe to the PropertyChanged
using (ocd.OnPropertyChanged().Subscribe(args => isNpcTriggered = true))
{
// change a value, a NPC is triggered
npc.Name = "Robin1";
// Test trigger
Assert.True(isNpcTriggered);
// Reset the trigger test value
isNpcTriggered = false;
// Remove the item, this should remove the event registration
Assert.True(ocd.TryRemove(testKey, out _));
// change a value, a NPC is triggered
npc.Name = "Robin2";
// Make sure we DID NOT get the trigger
Assert.False(isNpcTriggered);
}
}
static TfsWorkItemWrapper()
{
NotifyPropertyChangedImpl.AddDependency <TfsWorkItemWrapper>("IsHighlighted", "FontWeight");
}
