public void Refresh_OfDelegateProperty_CallsNotifyChangeWhenViewModelInstanceHasChanged()
{
var oldChild = new ChildVM();
var newChild = new ChildVM();
VM.DelegatePropertyResult = oldChild;
VM.Load(x => x.DelegateProperty);
VM.DelegatePropertyResult = newChild;
VM.OnChangeInvocations.Clear();
VM.Refresh(x => x.DelegateProperty);
var expectedArgs = ChangeArgs
.ViewModelPropertyChanged(
RootVM.ClassDescriptor.DelegateProperty,
ValueStage.ValidatedValue,
oldChild,
newChild)
.PrependViewModel(VM);
DomainAssert.AreEqual(
new[] { expectedArgs },
VM.OnChangeInvocations
);
}
public void HandleChange(IBehaviorContext context, ChangeArgs args)
{
if (HandleChangeNext != null)
{
HandleChangeNext();
}
}
private void onChange(object source, ChangeArgs e)
{
if (changer != null)
{
changer(this, e);
}
}
public void Repeater(ChangeArgs args)
{
if (ChangeEvent != null)
{
ChangeEvent(args);
}
}
public void Refresh_CallsNotifyChange()
{
Behavior.Refresh(Context, new RefreshOptions());
var expectedChangeArgs = ChangeArgs.PropertyChanged(Property, null);
DomainAssert.AreEqual(new[] { expectedChangeArgs }, Context.NotifyChangeInvocations);
}
public void Changed(ChangeArgs args)
{
if (args.Type != ChangeType.PlayerChanged)
{
return;
}
switch (args.Type)
{
case ChangeType.PlayerChanged:
var changedPlayerArgs = (SoccerPlayerArgs)args;
var player = changedPlayerArgs.PlayerValues;
if (changedPlayerArgs.Column == ColumnName.IsCaptain)
{
player.IsCaptain = (bool)Team.Squad.Find(p => p.Id == player.Id).IsCaptain.Value;
}
// TODO: Correct position group value to DB
if (changedPlayerArgs.Column == ColumnName.Position)
{
player.Position.Role = (PositionRole)Team.Squad.Find(p => p.Id == player.Id).Position.Value;
}
SquadRepository.UpdatePlayer(player);
break;
default:
break;
}
}
public void HandlePropertyChanged_ValidationFailed_ClearsValidationResult()
{
SetInvalidValue();
Behavior.NextValue = "Source value";
Behavior.HandlePropertyChanged(Context, ChangeArgs.PropertyChanged(Property, ValueStage.ValidatedValue));
Assert.AreEqual(Behavior.NextValue, Behavior.GetValue(Context));
}
public static void AreEqual(ChangeArgs expected, ChangeArgs actual)
{
if (!AreEqualCore(expected, actual))
{
Assert.Fail("Expected {0} but was {1}.", expected, actual);
}
}
public void CallHandleChangeWith(ChangeArgs args)
{
Behavior.HandleChange(
GetContext(),
args
);
}
public void Changed(ChangeArgs args)
{
if (args.Type == ChangeType.PlayerSelected || args.Type == ChangeType.PlayerChanged)
{
var playerArgs = (SoccerPlayerArgs)args;
Player = new SoccerPlayerViewModel(playerArgs.PlayerValues, Collections, _changesManager);
}
}
public void HandleChange_DescendantValidationStateChanged_PerformsViewModelValidation()
{
var args = ChangeArgs.ValidationResultChanged()
.PrependViewModel(VM)
.PrependViewModel(ViewModelStub.Build());
Behavior.HandleChange(Context, args);
Assert.AreEqual(HandleChangeNext + Validate + RevalidateNext, ActionLog);
}
public void ViewModelPropertyChanged_SetsChangeTypeAndChangedPathToProperty()
{
var property = PropertyStub.Build();
var args = ChangeArgs.ViewModelPropertyChanged(property, ValueStage.Value, null, null);
Assert.AreEqual(ChangeType.PropertyChanged, args.ChangeType);
Assert.AreEqual(ValueStage.Value, args.Stage);
DomainAssert.AreEqual(Path.Empty.Append(property), args.ChangedPath);
}
public void ViewModelPropertyChanged_SetsOldAndNewItems()
{
var property = PropertyStub.Build();
var newValue = ViewModelStub.Build();
var args = ChangeArgs.ViewModelPropertyChanged(property, ValueStage.ValidatedValue, null, newValue);
CollectionAssert.AreEqual(new IViewModel[0], args.OldItems.ToArray());
CollectionAssert.AreEqual(new IViewModel[] { newValue }, args.NewItems.ToArray());
}
public void HandleChange_DescendantPropertyChanged_PerformsViewModelValidation()
{
var args = ChangeArgs.PropertyChanged(PropertyStub.Of <string>(), null)
.PrependViewModel(VM)
.PrependViewModel(new ViewModelStub());
Behavior.HandleChange(Context, args);
Assert.AreEqual(HandleChangeNext + Validate + RevalidateNext, ActionLog);
}
public void HandleChange_WithPropertyChangedOfOwnViewModelProperty_UpdatesCachedResults()
{
var owner = new TestVM();
owner.MakePropertiesAndViewModelInvalid();
var expected = owner.GetCurrentlySetupResults();
// S E T C H I L D
var firstChild = new ViewModelStub {
ValidationResult = CreateValidationResult("First child error")
};
var propertyChangedArgs = ChangeArgs
.ViewModelPropertyChanged(
owner.SecondProperty,
ValueStage.ValidatedValue,
oldValue: null,
newValue: firstChild)
.PrependViewModel(owner);
owner.CallHandleChangeWith(propertyChangedArgs);
expected.Descenants = firstChild.ValidationResult;
AssertBehaviorResults(owner, expected);
// C H A N G E C H I L D
var secondChild = new ViewModelStub {
ValidationResult = CreateValidationResult("Second child error")
};
propertyChangedArgs = ChangeArgs
.ViewModelPropertyChanged(
owner.SecondProperty,
ValueStage.ValidatedValue,
oldValue: firstChild,
newValue: secondChild)
.PrependViewModel(owner);
owner.CallHandleChangeWith(propertyChangedArgs);
expected.Descenants = secondChild.ValidationResult;
AssertBehaviorResults(owner, expected);
// S E T C H I L D T O N U L L
propertyChangedArgs = ChangeArgs
.ViewModelPropertyChanged(
owner.SecondProperty,
ValueStage.ValidatedValue,
oldValue: secondChild,
newValue: null)
.PrependViewModel(owner);
owner.CallHandleChangeWith(propertyChangedArgs);
expected.Descenants = ValidationResult.Valid;
AssertBehaviorResults(owner, expected);
}
public void GetValueOfPopulatedCollection_Initially_RaisesChangeWithInitialPopulationReason()
{
Assert.AreEqual(0, VM.OnChangeInvocations.Count);
VM.Load(x => x.PopulatedCollection);
ChangeArgs args = VM.OnChangeInvocations.SingleOrDefault();
Assert.IsNotNull(args);
Assert.AreEqual(InitialPopulationChangeReason.Instance, args.Reason);
}
public void NotifyChange_WithValidationResultChangeForOwnViewModel_CallsValidationResultChanged()
{
VMInterface.NotifyChange(ChangeArgs
.ValidationResultChanged()
.PrependViewModel(VM)
);
Assert.IsTrue(VM.OnValidationStateChangedWasCalled);
Assert.IsNull(VM.LastOnValidationStateChangedInvocation);
}
public void ItemRemoved_CallsNotifyChange()
{
var removedItem = CreateItem("Removed item");
Collection = CreateCollection();
HandleItemRemoved(removedItem);
AssertChangeArgs(ChangeArgs.ItemsRemoved(Collection, new[] { removedItem }));
}
public void NotifyChange_WithPropertyChangeForOwnProperty_CallsOnPropertyChanged()
{
var property = PropertyStub.Build();
VMInterface.NotifyChange(ChangeArgs
.PropertyChanged(property, ValueStage.DisplayValue)
.PrependViewModel(VM)
);
Assert.AreEqual(property, VM.LastOnPropertyChangedInvocation);
}
public void NotifyChange_WithValidationResultChangeForOwnProperty_CallsValidationResultChanged()
{
var property = PropertyStub.Build();
VMInterface.NotifyChange(ChangeArgs
.ValidationResultChanged(property, ValueStage.Value)
.PrependViewModel(VM)
);
Assert.AreEqual(property, VM.LastOnValidationStateChangedInvocation);
}
public void ItemsRemoved_SetsChangedPathToEmpty()
{
var collection = VMCollectionStub.Build();
var oldItems = new[] { ViewModelStub.Build() };
var args = ChangeArgs.ItemsRemoved(collection, oldItems);
Assert.AreEqual(ChangeType.RemovedFromCollection, args.ChangeType);
CollectionAssert.AreEqual(oldItems, args.OldItems.ToArray());
Assert.IsFalse(args.NewItems.Any());
DomainAssert.AreEqual(Path.Empty.Append(collection), args.ChangedPath);
}
public void ItemsAdded_SetsChangeTypeAndNewItemsAndChangedPathToCollection()
{
var collection = VMCollectionStub.Build();
var newItems = new[] { ViewModelStub.Build() };
var args = ChangeArgs.ItemsAdded(collection, newItems);
Assert.AreEqual(ChangeType.AddedToCollection, args.ChangeType);
CollectionAssert.AreEqual(newItems, args.NewItems.ToArray());
Assert.IsFalse(args.OldItems.Any());
DomainAssert.AreEqual(Path.Empty.Append(collection), args.ChangedPath);
}
public void NotifyChange_WithPropertyChangeForDescendantViewModel_DoesNothing()
{
VMInterface.NotifyChange(ChangeArgs
.ValidationResultChanged()
.PrependViewModel(ViewModelStub.Build())
.PrependViewModel(VM)
);
Assert.IsNull(VM.LastOnPropertyChangedInvocation);
Assert.IsNull(VM.LastOnValidationStateChangedInvocation);
}
public void NotifyChange_ForOwnProperty_RaisesPropertyChangedForErrorProperty()
{
var counter = new PropertyChangedCounter(VM, "Error");
VMInterface.NotifyChange(ChangeArgs
.ValidationResultChanged()
.PrependViewModel(VM)
);
counter.AssertOneRaise();
}
public void Refresh(IBehaviorContext context, RefreshOptions options)
{
context.NotifyChange(
ChangeArgs.PropertyChanged(
_property,
ValueStage.ValidatedValue,
RefreshReason.Create(options.ExecuteRefreshDependencies)
)
);
this.RefreshNext(context, options);
}
public override void NotifyPropertyChanged(IBehaviorContext context, ValueStage stage, TValue oldValue, TValue newValue)
{
var args = ChangeArgs.ViewModelPropertyChanged(
_property,
stage,
oldValue,
newValue,
reason: null
);
context.NotifyChange(args);
}
public void ItemInserted_CallsNotifyChange()
{
var insertedItem = CreateItem("Inserted item");
Collection = CreateCollection(insertedItem);
HandleItemInserted(insertedItem);
AssertChangeArgs(
ChangeArgs.ItemsAdded(Collection, newItems: new[] { insertedItem })
);
}
public void Changed(ChangeArgs args)
{
if (args.Type != ChangeType.PlayerAdded && args.Type != ChangeType.PlayerChanged && args.Type != ChangeType.PlayerDeleted)
{
return;
}
switch (args.Type)
{
case ChangeType.PlayerAdded:
var addedPlayerArgs = (SoccerPlayerArgs)args;
TeamDetails.Squad.Add(new SoccerPlayerViewModel(addedPlayerArgs.PlayerValues, Collections, _changesManager));
SetTeamSquadDetails();
break;
case ChangeType.PlayerChanged:
var changedPlayerArgs = (SoccerPlayerArgs)args;
var player = TeamDetails.Squad.Find(p => p.Id == changedPlayerArgs.PlayerValues.Id);
if (changedPlayerArgs.Column == ColumnName.IsCaptain && changedPlayerArgs.PlayerValues.IsCaptain)
{
if (TeamDetails.Squad.Exists(p => (bool)p.IsCaptain.Value))
{
TeamDetails.Squad.Find(p => (bool)p.IsCaptain.Value).IsCaptain.SetValueToBinding(false);
}
player.IsCaptain.SetValueToBinding(changedPlayerArgs.PlayerValues.IsCaptain);
TeamDetails.Captain = player;
}
if (changedPlayerArgs.Column == ColumnName.Position)
{
player.Position.SetValueToBinding(changedPlayerArgs.PlayerValues.Position.Role);
SetTeamSquadDetails();
}
break;
case ChangeType.PlayerDeleted:
var deletedPlayerArgs = (SoccerPlayerArgs)args;
var deletedPlayer = TeamDetails.Squad.Find(p => p.Id == deletedPlayerArgs.PlayerValues.Id);
if ((bool)deletedPlayer.IsCaptain.Value)
{
TeamDetails.Captain = null;
}
TeamDetails.Squad.Remove(deletedPlayer);
SetTeamSquadDetails();
break;
default:
break;
}
}
public static void HandlePropertyChangedNext(
this Behavior behavior,
IBehaviorContext context,
ChangeArgs args
)
{
IHandlePropertyChangedBehavior next;
if (behavior.TryGetBehavior(out next))
{
next.HandlePropertyChanged(context, args);
}
}
public void UpdateValidationResult_AsPropertyBehavior_CallsNotifyChangeWithCorrectArgs()
{
SetupForProperty(ValueStage.DisplayValue);
var oldResult = CreateValidationResult("New result");
Manager.UpdateValidationResult(Context, oldResult);
DomainAssert.AreEqual(
ChangeArgs.ValidationResultChanged(Property, ValueStage.DisplayValue),
Context.NotifyChangeInvocations.LastOrDefault()
);
}