public void Add_ShouldWork()
{
bool isChangeTriggered = false, isAddTriggered = false, isAllTriggered = false;
var c = new ViewModelCollection<SimpleModel>(typeof(SimpleModel));
c.Bind("change", e => isChangeTriggered = true);
c.Bind("add", e => isAddTriggered = true);
c.Bind("all", e => isAllTriggered = true);
c.Add(new SimpleModel {Id = 3});
Assert.AreEqual(c.Count, 1);
Assert.AreEqual(c.ElementAt(0).Id, 3);
Assert.AreEqual(isChangeTriggered, true, "change event should have been triggered");
Assert.AreEqual(isAddTriggered, true, "add event should have been triggered");
Assert.AreEqual(isAllTriggered, true, "all event should have been triggered");
}
public void ChangeEvent_OnModelInsideCollection_ShouldFireCollectionChangeEvent()
{
var firstModel = new SimpleModel {Id = 3};
var c = new ViewModelCollection<SimpleModel>(typeof(SimpleModel))
{
firstModel,
new SimpleModel {Id = 6},
new SimpleModel {Id = 10}
};
var collectionHasChanged = false;
c.Bind("change", e => collectionHasChanged = true);
firstModel.Trigger("change");
Assert.IsTrue(collectionHasChanged);
}
public void AddRange_ShouldWork()
{
int changeTriggerCount = 0, addTriggerCount = 0, allTriggerCount = 0;
var c = new ViewModelCollection<SimpleModel>(typeof(SimpleModel));
c.Bind("change", e => changeTriggerCount++);
c.Bind("add", e => addTriggerCount++);
c.Bind("all", e => allTriggerCount++);
c.AddRange(
new []
{
new SimpleModel {Id = 3},
new SimpleModel {Id = 4},
new SimpleModel {Id = 5}
}
);
Assert.AreEqual(c.Count, 3);
Assert.AreEqual(c.ElementAt(0).Id, 3);
Assert.AreEqual(c.ElementAt(1).Id, 4);
Assert.AreEqual(c.ElementAt(2).Id, 5);
Assert.AreEqual(changeTriggerCount, 3, "change event should have been triggered");
Assert.AreEqual(addTriggerCount, 3, "add event should have been triggered");
Assert.AreEqual(allTriggerCount, 3, "all event should have been triggered");
}
public void Clear_ShouldWork()
{
bool isClearTriggered = false, isAllTriggered = false;
var c = new ViewModelCollection<SimpleModel>(typeof(SimpleModel));
var m = new SimpleModel {Id = 3};
c.Add(m);
Assert.AreEqual(c.Count, 1);
c.Bind("all", e => isAllTriggered = true);
c.Bind("clear", e => isClearTriggered = true);
c.Clear();
Assert.AreEqual(c.Count, 0);
Assert.AreEqual(isClearTriggered, true, "clear event should have been triggered");
Assert.AreEqual(isAllTriggered, true, "all event should have been triggered");
}
public void ChangeEvent_OnModelInsideCollection_ShouldNotFireCollectionChangeEventAfterModelWasRemovedFromCollection()
{
var firstModel = new SimpleModel {Id = 3};
var c = new ViewModelCollection<SimpleModel>(typeof(SimpleModel))
{
firstModel,
new SimpleModel {Id = 6},
new SimpleModel {Id = 10}
};
var collectionHasChanged = false;
c.Bind("change", e => collectionHasChanged = true);
c.Remove(firstModel, new ViewSetOptions {IsSilent = true});
Assert.IsFalse(collectionHasChanged, "Remove with silent should not trigger change");
firstModel.Trigger("change");
Assert.IsFalse(collectionHasChanged, "triggering the change event on an item that has been removed from a collection should not trigger the change event on the collection");
}
public void Remove_WithSilent_ShouldNotTriggerChangeEvent()
{
bool isChangeTriggered = false, isRemoveTriggered = false, isAllTriggered = false;
var c = new ViewModelCollection<SimpleModel>(typeof(SimpleModel));
var m = new SimpleModel {Id = 3};
c.Add(m);
Assert.AreEqual(c.Count, 1);
c.Bind("all", e => isAllTriggered = true);
c.Bind("change", e => isChangeTriggered = true);
c.Bind("remove", e => isRemoveTriggered = true);
c.Remove(m);
Assert.AreEqual(c.Count, 0);
Assert.AreEqual(isChangeTriggered, true, "change event should not have been triggered");
Assert.AreEqual(isRemoveTriggered, true, "remove event should not have been triggered");
Assert.AreEqual(isAllTriggered, true, "all event should not have been triggered");
}